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Code Issues Releases Wiki Activity

Deps: Update vendors

Browse source 
Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2018-10-09 12:46:29 +02:00
parent 67a7786502
commit 1fe856f72c
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
76 changed files with 3160 additions and 6974 deletions
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105
Gopkg.lock generated
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@ -2,109 +2,146 @@
[[projects]]
digest = "1:38fd40b35c4613c0793c6796528435a5358d95a77363d6c1fabe4e8d476b2896"
name = "github.com/Luzifer/go_helpers"
packages = [
"accessLogger",
"str"
"str",
]
revision = "94b91ff63a5db8e22c4d121e6c5c17b44135be4d"
version = "v2.5.0"
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[[projects]]
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name = "github.com/Luzifer/rconfig"
packages = ["."]
pruneopts = "NUT"
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version = "v1.2.0"
[[projects]]
branch = "master"
digest = "1:707ebe952a8b3d00b343c01536c79c73771d100f63ec6babeaed5c79e2b8a8dd"
name = "github.com/beorn7/perks"
packages = ["quantile"]
pruneopts = "NUT"
revision = "3a771d992973f24aa725d07868b467d1ddfceafb"
[[projects]]
branch = "master"
digest = "1:62c57507df491b657e9ae2645f30958d9964c8eeb380600469eedc951ebb3a0e"
name = "github.com/golang/freetype"
packages = [
"raster",
"truetype"
"truetype",
]
pruneopts = "NUT"
revision = "e2365dfdc4a05e4b8299a783240d4a7d5a65d4e4"
[[projects]]
digest = "1:97df918963298c287643883209a2c3f642e6593379f97ab400c2a2e219ab647d"
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packages = ["proto"]
revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265"
version = "v1.1.0"
pruneopts = "NUT"
revision = "aa810b61a9c79d51363740d207bb46cf8e620ed5"
version = "v1.2.0"
[[projects]]
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packages = ["."]
pruneopts = "NUT"
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[[projects]]
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packages = ["pbutil"]
pruneopts = "NUT"
revision = "c12348ce28de40eed0136aa2b644d0ee0650e56c"
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[[projects]]
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[[projects]]
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packages = ["prometheus"]
pruneopts = "NUT"
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[[projects]]
branch = "master"
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name = "github.com/prometheus/client_model"
packages = ["go"]
revision = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c"
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[[projects]]
branch = "master"
digest = "1:fad5a35eea6a1a33d6c8f949fbc146f24275ca809ece854248187683f52cc30b"
name = "github.com/prometheus/common"
packages = [
"expfmt",
"internal/bitbucket.org/ww/goautoneg",
"model"
"model",
]
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pruneopts = "NUT"
revision = "c7de2306084e37d54b8be01f3541a8464345e9a5"
[[projects]]
branch = "master"
digest = "1:102dea0c03a915acfc634b7c67f2662012b5483b56d9025e33f5188e112759b6"
name = "github.com/prometheus/procfs"
packages = [
".",
"internal/util",
"nfs",
"xfs"
"xfs",
]
revision = "94663424ae5ae9856b40a9f170762b4197024661"
pruneopts = "NUT"
revision = "185b4288413d2a0dd0806f78c90dde719829e5ae"
[[projects]]
digest = "1:9d8420bbf131d1618bde6530af37c3799340d3762cc47210c1d9532a4c3a2779"
name = "github.com/spf13/pflag"
packages = ["."]
revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
version = "v1.0.1"
pruneopts = "NUT"
revision = "298182f68c66c05229eb03ac171abe6e309ee79a"
version = "v1.0.3"
[[projects]]
digest = "1:37c42f4f9fe651e3ed41d41d1ed2c98b0b9b5e10f86bb66bd57358023ab7ca99"
name = "github.com/tdewolff/minify"
packages = [
".",
"css",
"svg"
"svg",
]
revision = "222672169d634c440a73abc47685074e1a9daa60"
version = "v2.3.4"
pruneopts = "NUT"
revision = "8d72a4127ae33b755e95bffede9b92e396267ce2"
version = "v2.3.5"
[[projects]]
digest = "1:44aa13c140f0c337785468c9543a6dcf028d72d3ce678d1ce3309d041c3c9f39"
name = "github.com/tdewolff/parse"
packages = [
".",
@ -112,41 +149,63 @@
"css",
"strconv",
"svg",
"xml"
"xml",
]
revision = "639f6272aec6b52094db77b9ec488214b0b4b1a1"
version = "v2.3.2"
pruneopts = "NUT"
revision = "d739d6fccb0971177e06352fea02d3552625efb1"
version = "v2.3.3"
[[projects]]
branch = "master"
digest = "1:6d674a768fd27ad126eb8357ebbc14cb5b000badd62d4b7cbe403abb231e099e"
name = "golang.org/x/image"
packages = [
"font",
"math/fixed"
"math/fixed",
]
revision = "af66defab954cb421ca110193eed9477c8541e2a"
pruneopts = "NUT"
revision = "991ec62608f3c0da01d400756917825d1e2fd528"
[[projects]]
branch = "master"
digest = "1:76ee51c3f468493aff39dbacc401e8831fbb765104cbf613b89bef01cf4bad70"
name = "golang.org/x/net"
packages = ["context"]
revision = "1e491301e022f8f977054da4c2d852decd59571f"
pruneopts = "NUT"
revision = "146acd28ed5894421fb5aac80ca93bc1b1f46f87"
[[projects]]
branch = "v2"
digest = "1:1ab6db2d2bd353449c5d1e976ba7a92a0ece6e83aaab3e6674f8f2f1faebb85a"
name = "gopkg.in/validator.v2"
packages = ["."]
pruneopts = "NUT"
revision = "135c24b11c19e52befcae2ec3fca5d9b78c4e98e"
[[projects]]
digest = "1:7c95b35057a0ff2e19f707173cc1a947fa43a6eb5c4d300d196ece0334046082"
name = "gopkg.in/yaml.v2"
packages = ["."]
pruneopts = "NUT"
revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
version = "v2.2.1"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "e6aef6c9173fa0d080b8bc11f91175f7ec7ec623e016e9581947dce7ec50a1e7"
input-imports = [
"github.com/Luzifer/go_helpers/accessLogger",
"github.com/Luzifer/go_helpers/str",
"github.com/Luzifer/rconfig",
"github.com/golang/freetype/truetype",
"github.com/gorilla/mux",
"github.com/pkg/errors",
"github.com/prometheus/client_golang/prometheus",
"github.com/tdewolff/minify",
"github.com/tdewolff/minify/svg",
"golang.org/x/image/math/fixed",
"golang.org/x/net/context",
"gopkg.in/yaml.v2",
]
solver-name = "gps-cdcl"
solver-version = 1

5
Gopkg.toml
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@ -41,6 +41,10 @@
name = "github.com/gorilla/mux"
version = "1.6.2"
[[constraint]]
name = "github.com/pkg/errors"
version = "0.8.0"
[[constraint]]
name = "github.com/prometheus/client_golang"
version = "0.8.0"
@ -62,5 +66,6 @@
version = "2.2.1"
[prune]
non-go = true
go-tests = true
unused-packages = true

202
vendor/github.com/Luzifer/go_helpers/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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that such additional attribution notices cannot be construed
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for any such Derivative Works as a whole, provided Your use,
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
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the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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Copyright 2016- Knut Ahlers <knut@ahlers.me>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

8
vendor/github.com/Luzifer/rconfig/.travis.yml generated vendored
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@ -1,8 +0,0 @@
language: go
go:
- 1.6
- 1.7
- tip
script: go test -v -race -cover ./...

9
vendor/github.com/Luzifer/rconfig/History.md generated vendored
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@ -1,9 +0,0 @@
# 1.2.0 / 2017-06-19
* Add ParseAndValidate method
# 1.1.0 / 2016-06-28
* Support time.Duration config parameters
* Added goreportcard badge
* Added testcase for using bool with ENV and default

87
vendor/github.com/Luzifer/rconfig/README.md generated vendored
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@ -1,87 +0,0 @@
[![Build Status](https://travis-ci.org/Luzifer/rconfig.svg?branch=master)](https://travis-ci.org/Luzifer/rconfig)
[![License: Apache v2.0](https://badge.luzifer.io/v1/badge?color=5d79b5&title=license&text=Apache+v2.0)](http://www.apache.org/licenses/LICENSE-2.0)
[![Documentation](https://badge.luzifer.io/v1/badge?title=godoc&text=reference)](https://godoc.org/github.com/Luzifer/rconfig)
[![Go Report](http://goreportcard.com/badge/Luzifer/rconfig)](http://goreportcard.com/report/Luzifer/rconfig)
## Description
> Package rconfig implements a CLI configuration reader with struct-embedded defaults, environment variables and posix compatible flag parsing using the [pflag](https://github.com/spf13/pflag) library.
## Installation
Install by running:
```
go get -u github.com/Luzifer/rconfig
```
OR fetch a specific version:
```
go get -u gopkg.in/luzifer/rconfig.v1
```
Run tests by running:
```
go test -v -race -cover github.com/Luzifer/rconfig
```
## Usage
A very simple usecase is to just configure a struct inside the vars section of your `main.go` and to parse the commandline flags from the `main()` function:
```go
package main
import (
"fmt"
"github.com/Luzifer/rconfig"
)
var (
cfg = struct {
Username string `default:"unknown" flag:"user" description:"Your name"`
Details struct {
Age int `default:"25" flag:"age" env:"age" description:"Your age"`
}
}{}
)
func main() {
rconfig.Parse(&cfg)
fmt.Printf("Hello %s, happy birthday for your %dth birthday.",
cfg.Username,
cfg.Details.Age)
}
```
### Provide variable defaults by using a file
Given you have a file `~/.myapp.yml` containing some secrets or usernames (for the example below username is assumed to be "luzifer") as a default configuration for your application you can use this source code to load the defaults from that file using the `vardefault` tag in your configuration struct.
The order of the directives (lower number = higher precedence):
1. Flags provided in command line
1. Environment variables
1. Variable defaults (`vardefault` tag in the struct)
1. `default` tag in the struct
```go
var cfg = struct {
Username string `vardefault:"username" flag:"username" description:"Your username"`
}
func main() {
rconfig.SetVariableDefaults(rconfig.VarDefaultsFromYAMLFile("~/.myapp.yml"))
rconfig.Parse(&cfg)
fmt.Printf("Username = %s", cfg.Username)
// Output: Username = luzifer
}
```
## More info
You can see the full reference documentation of the rconfig package [at godoc.org](https://godoc.org/github.com/Luzifer/rconfig), or through go's standard documentation system by running `godoc -http=:6060` and browsing to [http://localhost:6060/pkg/github.com/Luzifer/rconfig](http://localhost:6060/pkg/github.com/Luzifer/rconfig) after installation.

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vendor/github.com/beorn7/perks/quantile/exampledata.txt generated vendored
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3
vendor/github.com/golang/protobuf/LICENSE generated vendored
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@ -1,7 +1,4 @@
Go support for Protocol Buffers - Google's data interchange format
Copyright 2010 The Go Authors. All rights reserved.
https://github.com/golang/protobuf
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are

18
vendor/github.com/golang/protobuf/proto/encode.go generated vendored
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@ -37,27 +37,9 @@ package proto
import (
"errors"
"fmt"
"reflect"
)
// RequiredNotSetError is the error returned if Marshal is called with
// a protocol buffer struct whose required fields have not
// all been initialized. It is also the error returned if Unmarshal is
// called with an encoded protocol buffer that does not include all the
// required fields.
//
// When printed, RequiredNotSetError reports the first unset required field in a
// message. If the field cannot be precisely determined, it is reported as
// "{Unknown}".
type RequiredNotSetError struct {
field string
}
func (e *RequiredNotSetError) Error() string {
return fmt.Sprintf("proto: required field %q not set", e.field)
}
var (
// errRepeatedHasNil is the error returned if Marshal is called with
// a struct with a repeated field containing a nil element.

62
vendor/github.com/golang/protobuf/proto/lib.go generated vendored
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@ -265,7 +265,6 @@ package proto
import (
"encoding/json"
"errors"
"fmt"
"log"
"reflect"
@ -274,7 +273,66 @@ import (
"sync"
)
var errInvalidUTF8 = errors.New("proto: invalid UTF-8 string")
// RequiredNotSetError is an error type returned by either Marshal or Unmarshal.
// Marshal reports this when a required field is not initialized.
// Unmarshal reports this when a required field is missing from the wire data.
type RequiredNotSetError struct{ field string }
func (e *RequiredNotSetError) Error() string {
if e.field == "" {
return fmt.Sprintf("proto: required field not set")
}
return fmt.Sprintf("proto: required field %q not set", e.field)
}
func (e *RequiredNotSetError) RequiredNotSet() bool {
return true
}
type invalidUTF8Error struct{ field string }
func (e *invalidUTF8Error) Error() string {
if e.field == "" {
return "proto: invalid UTF-8 detected"
}
return fmt.Sprintf("proto: field %q contains invalid UTF-8", e.field)
}
func (e *invalidUTF8Error) InvalidUTF8() bool {
return true
}
// errInvalidUTF8 is a sentinel error to identify fields with invalid UTF-8.
// This error should not be exposed to the external API as such errors should
// be recreated with the field information.
var errInvalidUTF8 = &invalidUTF8Error{}
// isNonFatal reports whether the error is either a RequiredNotSet error
// or a InvalidUTF8 error.
func isNonFatal(err error) bool {
if re, ok := err.(interface{ RequiredNotSet() bool }); ok && re.RequiredNotSet() {
return true
}
if re, ok := err.(interface{ InvalidUTF8() bool }); ok && re.InvalidUTF8() {
return true
}
return false
}
type nonFatal struct{ E error }
// Merge merges err into nf and reports whether it was successful.
// Otherwise it returns false for any fatal non-nil errors.
func (nf *nonFatal) Merge(err error) (ok bool) {
if err == nil {
return true // not an error
}
if !isNonFatal(err) {
return false // fatal error
}
if nf.E == nil {
nf.E = err // store first instance of non-fatal error
}
return true
}
// Message is implemented by generated protocol buffer messages.
type Message interface {

16
vendor/github.com/golang/protobuf/proto/properties.go generated vendored
View file

@ -139,7 +139,7 @@ type Properties struct {
Repeated bool
Packed bool // relevant for repeated primitives only
Enum string // set for enum types only
proto3 bool // whether this is known to be a proto3 field; set for []byte only
proto3 bool // whether this is known to be a proto3 field
oneof bool // whether this is a oneof field
Default string // default value
@ -148,9 +148,9 @@ type Properties struct {
stype reflect.Type // set for struct types only
sprop *StructProperties // set for struct types only
mtype reflect.Type // set for map types only
mkeyprop *Properties // set for map types only
mvalprop *Properties // set for map types only
mtype reflect.Type // set for map types only
MapKeyProp *Properties // set for map types only
MapValProp *Properties // set for map types only
}
// String formats the properties in the protobuf struct field tag style.
@ -275,16 +275,16 @@ func (p *Properties) setFieldProps(typ reflect.Type, f *reflect.StructField, loc
case reflect.Map:
p.mtype = t1
p.mkeyprop = &Properties{}
p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.mvalprop = &Properties{}
p.MapKeyProp = &Properties{}
p.MapKeyProp.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.MapValProp = &Properties{}
vtype := p.mtype.Elem()
if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
// The value type is not a message (*T) or bytes ([]byte),
// so we need encoders for the pointer to this type.
vtype = reflect.PtrTo(vtype)
}
p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
p.MapValProp.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
}
if p.stype != nil {

190
vendor/github.com/golang/protobuf/proto/table_marshal.go generated vendored
View file

@ -231,7 +231,7 @@ func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte
return b, err
}
var err, errreq error
var err, errLater error
// The old marshaler encodes extensions at beginning.
if u.extensions.IsValid() {
e := ptr.offset(u.extensions).toExtensions()
@ -252,11 +252,13 @@ func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte
}
}
for _, f := range u.fields {
if f.required && errreq == nil {
if f.required {
if ptr.offset(f.field).getPointer().isNil() {
// Required field is not set.
// We record the error but keep going, to give a complete marshaling.
errreq = &RequiredNotSetError{f.name}
if errLater == nil {
errLater = &RequiredNotSetError{f.name}
}
continue
}
}
@ -269,14 +271,21 @@ func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte
if err1, ok := err.(*RequiredNotSetError); ok {
// Required field in submessage is not set.
// We record the error but keep going, to give a complete marshaling.
if errreq == nil {
errreq = &RequiredNotSetError{f.name + "." + err1.field}
if errLater == nil {
errLater = &RequiredNotSetError{f.name + "." + err1.field}
}
continue
}
if err == errRepeatedHasNil {
err = errors.New("proto: repeated field " + f.name + " has nil element")
}
if err == errInvalidUTF8 {
if errLater == nil {
fullName := revProtoTypes[reflect.PtrTo(u.typ)] + "." + f.name
errLater = &invalidUTF8Error{fullName}
}
continue
}
return b, err
}
}
@ -284,7 +293,7 @@ func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte
s := *ptr.offset(u.unrecognized).toBytes()
b = append(b, s...)
}
return b, errreq
return b, errLater
}
// computeMarshalInfo initializes the marshal info.
@ -530,6 +539,7 @@ func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, ma
packed := false
proto3 := false
validateUTF8 := true
for i := 2; i < len(tags); i++ {
if tags[i] == "packed" {
packed = true
@ -538,6 +548,7 @@ func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, ma
proto3 = true
}
}
validateUTF8 = validateUTF8 && proto3
switch t.Kind() {
case reflect.Bool:
@ -735,6 +746,18 @@ func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, ma
}
return sizeFloat64Value, appendFloat64Value
case reflect.String:
if validateUTF8 {
if pointer {
return sizeStringPtr, appendUTF8StringPtr
}
if slice {
return sizeStringSlice, appendUTF8StringSlice
}
if nozero {
return sizeStringValueNoZero, appendUTF8StringValueNoZero
}
return sizeStringValue, appendUTF8StringValue
}
if pointer {
return sizeStringPtr, appendStringPtr
}
@ -1984,9 +2007,6 @@ func appendBoolPackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byt
}
func appendStringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
v := *ptr.toString()
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
@ -1997,9 +2017,6 @@ func appendStringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]b
if v == "" {
return b, nil
}
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
@ -2011,24 +2028,83 @@ func appendStringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, err
return b, nil
}
v := *p
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
return b, nil
}
func appendStringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
s := *ptr.toStringSlice()
for _, v := range s {
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
}
return b, nil
}
func appendUTF8StringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
var invalidUTF8 bool
v := *ptr.toString()
if !utf8.ValidString(v) {
invalidUTF8 = true
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
if invalidUTF8 {
return b, errInvalidUTF8
}
return b, nil
}
func appendUTF8StringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
var invalidUTF8 bool
v := *ptr.toString()
if v == "" {
return b, nil
}
if !utf8.ValidString(v) {
invalidUTF8 = true
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
if invalidUTF8 {
return b, errInvalidUTF8
}
return b, nil
}
func appendUTF8StringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
var invalidUTF8 bool
p := *ptr.toStringPtr()
if p == nil {
return b, nil
}
v := *p
if !utf8.ValidString(v) {
invalidUTF8 = true
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
if invalidUTF8 {
return b, errInvalidUTF8
}
return b, nil
}
func appendUTF8StringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
var invalidUTF8 bool
s := *ptr.toStringSlice()
for _, v := range s {
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
invalidUTF8 = true
}
b = appendVarint(b, wiretag)
b = appendVarint(b, uint64(len(v)))
b = append(b, v...)
}
if invalidUTF8 {
return b, errInvalidUTF8
}
return b, nil
}
func appendBytes(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
@ -2107,7 +2183,8 @@ func makeGroupSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
},
func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
s := ptr.getPointerSlice()
var err, errreq error
var err error
var nerr nonFatal
for _, v := range s {
if v.isNil() {
return b, errRepeatedHasNil
@ -2115,22 +2192,14 @@ func makeGroupSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
b = appendVarint(b, wiretag) // start group
b, err = u.marshal(b, v, deterministic)
b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group
if err != nil {
if _, ok := err.(*RequiredNotSetError); ok {
// Required field in submessage is not set.
// We record the error but keep going, to give a complete marshaling.
if errreq == nil {
errreq = err
}
continue
}
if !nerr.Merge(err) {
if err == ErrNil {
err = errRepeatedHasNil
}
return b, err
}
}
return b, errreq
return b, nerr.E
}
}
@ -2174,7 +2243,8 @@ func makeMessageSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
},
func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
s := ptr.getPointerSlice()
var err, errreq error
var err error
var nerr nonFatal
for _, v := range s {
if v.isNil() {
return b, errRepeatedHasNil
@ -2184,22 +2254,14 @@ func makeMessageSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
b = appendVarint(b, uint64(siz))
b, err = u.marshal(b, v, deterministic)
if err != nil {
if _, ok := err.(*RequiredNotSetError); ok {
// Required field in submessage is not set.
// We record the error but keep going, to give a complete marshaling.
if errreq == nil {
errreq = err
}
continue
}
if !nerr.Merge(err) {
if err == ErrNil {
err = errRepeatedHasNil
}
return b, err
}
}
return b, errreq
return b, nerr.E
}
}
@ -2223,6 +2285,25 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) {
// value.
// Key cannot be pointer-typed.
valIsPtr := valType.Kind() == reflect.Ptr
// If value is a message with nested maps, calling
// valSizer in marshal may be quadratic. We should use
// cached version in marshal (but not in size).
// If value is not message type, we don't have size cache,
// but it cannot be nested either. Just use valSizer.
valCachedSizer := valSizer
if valIsPtr && valType.Elem().Kind() == reflect.Struct {
u := getMarshalInfo(valType.Elem())
valCachedSizer = func(ptr pointer, tagsize int) int {
// Same as message sizer, but use cache.
p := ptr.getPointer()
if p.isNil() {
return 0
}
siz := u.cachedsize(p)
return siz + SizeVarint(uint64(siz)) + tagsize
}
}
return func(ptr pointer, tagsize int) int {
m := ptr.asPointerTo(t).Elem() // the map
n := 0
@ -2243,24 +2324,26 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) {
if len(keys) > 1 && deterministic {
sort.Sort(mapKeys(keys))
}
var nerr nonFatal
for _, k := range keys {
ki := k.Interface()
vi := m.MapIndex(k).Interface()
kaddr := toAddrPointer(&ki, false) // pointer to key
vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value
b = appendVarint(b, tag)
siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
siz := keySizer(kaddr, 1) + valCachedSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
b = appendVarint(b, uint64(siz))
b, err = keyMarshaler(b, kaddr, keyWireTag, deterministic)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
b, err = valMarshaler(b, vaddr, valWireTag, deterministic)
if err != nil && err != ErrNil { // allow nil value in map
if err != ErrNil && !nerr.Merge(err) { // allow nil value in map
return b, err
}
}
return b, nil
return b, nerr.E
}
}
@ -2333,6 +2416,7 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de
defer mu.Unlock()
var err error
var nerr nonFatal
// Fast-path for common cases: zero or one extensions.
// Don't bother sorting the keys.
@ -2352,11 +2436,11 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de
v := e.value
p := toAddrPointer(&v, ei.isptr)
b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
}
return b, nil
return b, nerr.E
}
// Sort the keys to provide a deterministic encoding.
@ -2383,11 +2467,11 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de
v := e.value
p := toAddrPointer(&v, ei.isptr)
b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
}
return b, nil
return b, nerr.E
}
// message set format is:
@ -2444,6 +2528,7 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de
defer mu.Unlock()
var err error
var nerr nonFatal
// Fast-path for common cases: zero or one extensions.
// Don't bother sorting the keys.
@ -2470,12 +2555,12 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de
v := e.value
p := toAddrPointer(&v, ei.isptr)
b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
b = append(b, 1<<3|WireEndGroup)
}
return b, nil
return b, nerr.E
}
// Sort the keys to provide a deterministic encoding.
@ -2509,11 +2594,11 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de
p := toAddrPointer(&v, ei.isptr)
b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
b = append(b, 1<<3|WireEndGroup)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
}
return b, nil
return b, nerr.E
}
// sizeV1Extensions computes the size of encoded data for a V1-API extension field.
@ -2556,6 +2641,7 @@ func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, determ
sort.Ints(keys)
var err error
var nerr nonFatal
for _, k := range keys {
e := m[int32(k)]
if e.value == nil || e.desc == nil {
@ -2572,11 +2658,11 @@ func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, determ
v := e.value
p := toAddrPointer(&v, ei.isptr)
b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
if err != nil {
if !nerr.Merge(err) {
return b, err
}
}
return b, nil
return b, nerr.E
}
// newMarshaler is the interface representing objects that can marshal themselves.

146
vendor/github.com/golang/protobuf/proto/table_unmarshal.go generated vendored
View file

@ -97,6 +97,8 @@ type unmarshalFieldInfo struct {
// if a required field, contains a single set bit at this field's index in the required field list.
reqMask uint64
name string // name of the field, for error reporting
}
var (
@ -136,8 +138,8 @@ func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error {
if u.isMessageSet {
return UnmarshalMessageSet(b, m.offset(u.extensions).toExtensions())
}
var reqMask uint64 // bitmask of required fields we've seen.
var rnse *RequiredNotSetError // an instance of a RequiredNotSetError returned by a submessage.
var reqMask uint64 // bitmask of required fields we've seen.
var errLater error
for len(b) > 0 {
// Read tag and wire type.
// Special case 1 and 2 byte varints.
@ -176,11 +178,20 @@ func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error {
if r, ok := err.(*RequiredNotSetError); ok {
// Remember this error, but keep parsing. We need to produce
// a full parse even if a required field is missing.
rnse = r
if errLater == nil {
errLater = r
}
reqMask |= f.reqMask
continue
}
if err != errInternalBadWireType {
if err == errInvalidUTF8 {
if errLater == nil {
fullName := revProtoTypes[reflect.PtrTo(u.typ)] + "." + f.name
errLater = &invalidUTF8Error{fullName}
}
continue
}
return err
}
// Fragments with bad wire type are treated as unknown fields.
@ -239,20 +250,16 @@ func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error {
emap[int32(tag)] = e
}
}
if rnse != nil {
// A required field of a submessage/group is missing. Return that error.
return rnse
}
if reqMask != u.reqMask {
if reqMask != u.reqMask && errLater == nil {
// A required field of this message is missing.
for _, n := range u.reqFields {
if reqMask&1 == 0 {
return &RequiredNotSetError{n}
errLater = &RequiredNotSetError{n}
}
reqMask >>= 1
}
}
return nil
return errLater
}
// computeUnmarshalInfo fills in u with information for use
@ -351,7 +358,7 @@ func (u *unmarshalInfo) computeUnmarshalInfo() {
}
// Store the info in the correct slot in the message.
u.setTag(tag, toField(&f), unmarshal, reqMask)
u.setTag(tag, toField(&f), unmarshal, reqMask, name)
}
// Find any types associated with oneof fields.
@ -366,10 +373,17 @@ func (u *unmarshalInfo) computeUnmarshalInfo() {
f := typ.Field(0) // oneof implementers have one field
baseUnmarshal := fieldUnmarshaler(&f)
tagstr := strings.Split(f.Tag.Get("protobuf"), ",")[1]
tag, err := strconv.Atoi(tagstr)
tags := strings.Split(f.Tag.Get("protobuf"), ",")
fieldNum, err := strconv.Atoi(tags[1])
if err != nil {
panic("protobuf tag field not an integer: " + tagstr)
panic("protobuf tag field not an integer: " + tags[1])
}
var name string
for _, tag := range tags {
if strings.HasPrefix(tag, "name=") {
name = strings.TrimPrefix(tag, "name=")
break
}
}
// Find the oneof field that this struct implements.
@ -380,7 +394,7 @@ func (u *unmarshalInfo) computeUnmarshalInfo() {
// That lets us know where this struct should be stored
// when we encounter it during unmarshaling.
unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal)
u.setTag(tag, of.field, unmarshal, 0)
u.setTag(fieldNum, of.field, unmarshal, 0, name)
}
}
}
@ -401,7 +415,7 @@ func (u *unmarshalInfo) computeUnmarshalInfo() {
// [0 0] is [tag=0/wiretype=varint varint-encoded-0].
u.setTag(0, zeroField, func(b []byte, f pointer, w int) ([]byte, error) {
return nil, fmt.Errorf("proto: %s: illegal tag 0 (wire type %d)", t, w)
}, 0)
}, 0, "")
// Set mask for required field check.
u.reqMask = uint64(1)<<uint(len(u.reqFields)) - 1
@ -413,8 +427,9 @@ func (u *unmarshalInfo) computeUnmarshalInfo() {
// tag = tag # for field
// field/unmarshal = unmarshal info for that field.
// reqMask = if required, bitmask for field position in required field list. 0 otherwise.
func (u *unmarshalInfo) setTag(tag int, field field, unmarshal unmarshaler, reqMask uint64) {
i := unmarshalFieldInfo{field: field, unmarshal: unmarshal, reqMask: reqMask}
// name = short name of the field.
func (u *unmarshalInfo) setTag(tag int, field field, unmarshal unmarshaler, reqMask uint64, name string) {
i := unmarshalFieldInfo{field: field, unmarshal: unmarshal, reqMask: reqMask, name: name}
n := u.typ.NumField()
if tag >= 0 && (tag < 16 || tag < 2*n) { // TODO: what are the right numbers here?
for len(u.dense) <= tag {
@ -442,11 +457,17 @@ func typeUnmarshaler(t reflect.Type, tags string) unmarshaler {
tagArray := strings.Split(tags, ",")
encoding := tagArray[0]
name := "unknown"
proto3 := false
validateUTF8 := true
for _, tag := range tagArray[3:] {
if strings.HasPrefix(tag, "name=") {
name = tag[5:]
}
if tag == "proto3" {
proto3 = true
}
}
validateUTF8 = validateUTF8 && proto3
// Figure out packaging (pointer, slice, or both)
slice := false
@ -594,6 +615,15 @@ func typeUnmarshaler(t reflect.Type, tags string) unmarshaler {
}
return unmarshalBytesValue
case reflect.String:
if validateUTF8 {
if pointer {
return unmarshalUTF8StringPtr
}
if slice {
return unmarshalUTF8StringSlice
}
return unmarshalUTF8StringValue
}
if pointer {
return unmarshalStringPtr
}
@ -1448,9 +1478,6 @@ func unmarshalStringValue(b []byte, f pointer, w int) ([]byte, error) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
*f.toString() = v
return b[x:], nil
}
@ -1468,9 +1495,6 @@ func unmarshalStringPtr(b []byte, f pointer, w int) ([]byte, error) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
*f.toStringPtr() = &v
return b[x:], nil
}
@ -1488,14 +1512,72 @@ func unmarshalStringSlice(b []byte, f pointer, w int) ([]byte, error) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
if !utf8.ValidString(v) {
return nil, errInvalidUTF8
}
s := f.toStringSlice()
*s = append(*s, v)
return b[x:], nil
}
func unmarshalUTF8StringValue(b []byte, f pointer, w int) ([]byte, error) {
if w != WireBytes {
return b, errInternalBadWireType
}
x, n := decodeVarint(b)
if n == 0 {
return nil, io.ErrUnexpectedEOF
}
b = b[n:]
if x > uint64(len(b)) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
*f.toString() = v
if !utf8.ValidString(v) {
return b[x:], errInvalidUTF8
}
return b[x:], nil
}
func unmarshalUTF8StringPtr(b []byte, f pointer, w int) ([]byte, error) {
if w != WireBytes {
return b, errInternalBadWireType
}
x, n := decodeVarint(b)
if n == 0 {
return nil, io.ErrUnexpectedEOF
}
b = b[n:]
if x > uint64(len(b)) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
*f.toStringPtr() = &v
if !utf8.ValidString(v) {
return b[x:], errInvalidUTF8
}
return b[x:], nil
}
func unmarshalUTF8StringSlice(b []byte, f pointer, w int) ([]byte, error) {
if w != WireBytes {
return b, errInternalBadWireType
}
x, n := decodeVarint(b)
if n == 0 {
return nil, io.ErrUnexpectedEOF
}
b = b[n:]
if x > uint64(len(b)) {
return nil, io.ErrUnexpectedEOF
}
v := string(b[:x])
s := f.toStringSlice()
*s = append(*s, v)
if !utf8.ValidString(v) {
return b[x:], errInvalidUTF8
}
return b[x:], nil
}
var emptyBuf [0]byte
func unmarshalBytesValue(b []byte, f pointer, w int) ([]byte, error) {
@ -1674,6 +1756,7 @@ func makeUnmarshalMap(f *reflect.StructField) unmarshaler {
// Maps will be somewhat slow. Oh well.
// Read key and value from data.
var nerr nonFatal
k := reflect.New(kt)
v := reflect.New(vt)
for len(b) > 0 {
@ -1694,7 +1777,7 @@ func makeUnmarshalMap(f *reflect.StructField) unmarshaler {
err = errInternalBadWireType // skip unknown tag
}
if err == nil {
if nerr.Merge(err) {
continue
}
if err != errInternalBadWireType {
@ -1717,7 +1800,7 @@ func makeUnmarshalMap(f *reflect.StructField) unmarshaler {
// Insert into map.
m.SetMapIndex(k.Elem(), v.Elem())
return r, nil
return r, nerr.E
}
}
@ -1743,15 +1826,16 @@ func makeUnmarshalOneof(typ, ityp reflect.Type, unmarshal unmarshaler) unmarshal
// Unmarshal data into holder.
// We unmarshal into the first field of the holder object.
var err error
var nerr nonFatal
b, err = unmarshal(b, valToPointer(v).offset(field0), w)
if err != nil {
if !nerr.Merge(err) {
return nil, err
}
// Write pointer to holder into target field.
f.asPointerTo(ityp).Elem().Set(v)
return b, nil
return b, nerr.E
}
}

4
vendor/github.com/golang/protobuf/proto/text.go generated vendored
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@ -353,7 +353,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
return err
}
}
if err := tm.writeAny(w, key, props.mkeyprop); err != nil {
if err := tm.writeAny(w, key, props.MapKeyProp); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
@ -370,7 +370,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
return err
}
}
if err := tm.writeAny(w, val, props.mvalprop); err != nil {
if err := tm.writeAny(w, val, props.MapValProp); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {

6
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@ -630,17 +630,17 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
if err := p.consumeToken(":"); err != nil {
return err
}
if err := p.readAny(key, props.mkeyprop); err != nil {
if err := p.readAny(key, props.MapKeyProp); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
case "value":
if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
if err := p.checkForColon(props.MapValProp, dst.Type().Elem()); err != nil {
return err
}
if err := p.readAny(val, props.mvalprop); err != nil {
if err := p.readAny(val, props.MapValProp); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {

19
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@ -1,19 +0,0 @@
language: go
sudo: false
matrix:
include:
- go: 1.3
- go: 1.4
- go: 1.5
- go: 1.6
- go: 1.7
- go: tip
allow_failures:
- go: tip
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d .)
- go vet $(go list ./... | grep -v /vendor/)
- go test -v -race ./...

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@ -1,10 +0,0 @@
context
=======
[![Build Status](https://travis-ci.org/gorilla/context.png?branch=master)](https://travis-ci.org/gorilla/context)
gorilla/context is a general purpose registry for global request variables.
> Note: gorilla/context, having been born well before `context.Context` existed, does not play well
> with the shallow copying of the request that [`http.Request.WithContext`](https://golang.org/pkg/net/http/#Request.WithContext) (added to net/http Go 1.7 onwards) performs. You should either use *just* gorilla/context, or moving forward, the new `http.Request.Context()`.
Read the full documentation here: http://www.gorillatoolkit.org/pkg/context

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@ -1,23 +0,0 @@
language: go
sudo: false
matrix:
include:
- go: 1.5.x
- go: 1.6.x
- go: 1.7.x
- go: 1.8.x
- go: 1.9.x
- go: 1.10.x
- go: tip
allow_failures:
- go: tip
install:
- # Skip
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d .)
- go tool vet .
- go test -v -race ./...

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@ -1,11 +0,0 @@
**What version of Go are you running?** (Paste the output of `go version`)
**What version of gorilla/mux are you at?** (Paste the output of `git rev-parse HEAD` inside `$GOPATH/src/github.com/gorilla/mux`)
**Describe your problem** (and what you have tried so far)
**Paste a minimal, runnable, reproduction of your issue below** (use backticks to format it)

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@ -1,649 +0,0 @@
# gorilla/mux
[![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
[![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
http://www.gorillatoolkit.org/pkg/mux
Package `gorilla/mux` implements a request router and dispatcher for matching incoming requests to
their respective handler.
The name mux stands for "HTTP request multiplexer". Like the standard `http.ServeMux`, `mux.Router` matches incoming requests against a list of registered routes and calls a handler for the route that matches the URL or other conditions. The main features are:
* It implements the `http.Handler` interface so it is compatible with the standard `http.ServeMux`.
* Requests can be matched based on URL host, path, path prefix, schemes, header and query values, HTTP methods or using custom matchers.
* URL hosts, paths and query values can have variables with an optional regular expression.
* Registered URLs can be built, or "reversed", which helps maintaining references to resources.
* Routes can be used as subrouters: nested routes are only tested if the parent route matches. This is useful to define groups of routes that share common conditions like a host, a path prefix or other repeated attributes. As a bonus, this optimizes request matching.
---
* [Install](#install)
* [Examples](#examples)
* [Matching Routes](#matching-routes)
* [Static Files](#static-files)
* [Registered URLs](#registered-urls)
* [Walking Routes](#walking-routes)
* [Graceful Shutdown](#graceful-shutdown)
* [Middleware](#middleware)
* [Testing Handlers](#testing-handlers)
* [Full Example](#full-example)
---
## Install
With a [correctly configured](https://golang.org/doc/install#testing) Go toolchain:
```sh
go get -u github.com/gorilla/mux
```
## Examples
Let's start registering a couple of URL paths and handlers:
```go
func main() {
r := mux.NewRouter()
r.HandleFunc("/", HomeHandler)
r.HandleFunc("/products", ProductsHandler)
r.HandleFunc("/articles", ArticlesHandler)
http.Handle("/", r)
}
```
Here we register three routes mapping URL paths to handlers. This is equivalent to how `http.HandleFunc()` works: if an incoming request URL matches one of the paths, the corresponding handler is called passing (`http.ResponseWriter`, `*http.Request`) as parameters.
Paths can have variables. They are defined using the format `{name}` or `{name:pattern}`. If a regular expression pattern is not defined, the matched variable will be anything until the next slash. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/products/{key}", ProductHandler)
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The names are used to create a map of route variables which can be retrieved calling `mux.Vars()`:
```go
func ArticlesCategoryHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "Category: %v\n", vars["category"])
}
```
And this is all you need to know about the basic usage. More advanced options are explained below.
### Matching Routes
Routes can also be restricted to a domain or subdomain. Just define a host pattern to be matched. They can also have variables:
```go
r := mux.NewRouter()
// Only matches if domain is "www.example.com".
r.Host("www.example.com")
// Matches a dynamic subdomain.
r.Host("{subdomain:[a-z]+}.domain.com")
```
There are several other matchers that can be added. To match path prefixes:
```go
r.PathPrefix("/products/")
```
...or HTTP methods:
```go
r.Methods("GET", "POST")
```
...or URL schemes:
```go
r.Schemes("https")
```
...or header values:
```go
r.Headers("X-Requested-With", "XMLHttpRequest")
```
...or query values:
```go
r.Queries("key", "value")
```
...or to use a custom matcher function:
```go
r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
return r.ProtoMajor == 0
})
```
...and finally, it is possible to combine several matchers in a single route:
```go
r.HandleFunc("/products", ProductsHandler).
Host("www.example.com").
Methods("GET").
Schemes("http")
```
Routes are tested in the order they were added to the router. If two routes match, the first one wins:
```go
r := mux.NewRouter()
r.HandleFunc("/specific", specificHandler)
r.PathPrefix("/").Handler(catchAllHandler)
```
Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it:
```go
r := mux.NewRouter()
s := r.Host("www.example.com").Subrouter()
```
Then register routes in the subrouter:
```go
s.HandleFunc("/products/", ProductsHandler)
s.HandleFunc("/products/{key}", ProductHandler)
s.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The three URL paths we registered above will only be tested if the domain is `www.example.com`, because the subrouter is tested first. This is not only convenient, but also optimizes request matching. You can create subrouters combining any attribute matchers accepted by a route.
Subrouters can be used to create domain or path "namespaces": you define subrouters in a central place and then parts of the app can register its paths relatively to a given subrouter.
There's one more thing about subroutes. When a subrouter has a path prefix, the inner routes use it as base for their paths:
```go
r := mux.NewRouter()
s := r.PathPrefix("/products").Subrouter()
// "/products/"
s.HandleFunc("/", ProductsHandler)
// "/products/{key}/"
s.HandleFunc("/{key}/", ProductHandler)
// "/products/{key}/details"
s.HandleFunc("/{key}/details", ProductDetailsHandler)
```
### Static Files
Note that the path provided to `PathPrefix()` represents a "wildcard": calling
`PathPrefix("/static/").Handler(...)` means that the handler will be passed any
request that matches "/static/\*". This makes it easy to serve static files with mux:
```go
func main() {
var dir string
flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
flag.Parse()
r := mux.NewRouter()
// This will serve files under http://localhost:8000/static/<filename>
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
srv := &http.Server{
Handler: r,
Addr: "127.0.0.1:8000",
// Good practice: enforce timeouts for servers you create!
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
log.Fatal(srv.ListenAndServe())
}
```
### Registered URLs
Now let's see how to build registered URLs.
Routes can be named. All routes that define a name can have their URLs built, or "reversed". We define a name calling `Name()` on a route. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
Name("article")
```
To build a URL, get the route and call the `URL()` method, passing a sequence of key/value pairs for the route variables. For the previous route, we would do:
```go
url, err := r.Get("article").URL("category", "technology", "id", "42")
```
...and the result will be a `url.URL` with the following path:
```
"/articles/technology/42"
```
This also works for host and query value variables:
```go
r := mux.NewRouter()
r.Host("{subdomain}.domain.com").
Path("/articles/{category}/{id:[0-9]+}").
Queries("filter", "{filter}").
HandlerFunc(ArticleHandler).
Name("article")
// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42",
"filter", "gorilla")
```
All variables defined in the route are required, and their values must conform to the corresponding patterns. These requirements guarantee that a generated URL will always match a registered route -- the only exception is for explicitly defined "build-only" routes which never match.
Regex support also exists for matching Headers within a route. For example, we could do:
```go
r.HeadersRegexp("Content-Type", "application/(text|json)")
```
...and the route will match both requests with a Content-Type of `application/json` as well as `application/text`
There's also a way to build only the URL host or path for a route: use the methods `URLHost()` or `URLPath()` instead. For the previous route, we would do:
```go
// "http://news.domain.com/"
host, err := r.Get("article").URLHost("subdomain", "news")
// "/articles/technology/42"
path, err := r.Get("article").URLPath("category", "technology", "id", "42")
```
And if you use subrouters, host and path defined separately can be built as well:
```go
r := mux.NewRouter()
s := r.Host("{subdomain}.domain.com").Subrouter()
s.Path("/articles/{category}/{id:[0-9]+}").
HandlerFunc(ArticleHandler).
Name("article")
// "http://news.domain.com/articles/technology/42"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
```
### Walking Routes
The `Walk` function on `mux.Router` can be used to visit all of the routes that are registered on a router. For example,
the following prints all of the registered routes:
```go
package main
import (
"fmt"
"net/http"
"strings"
"github.com/gorilla/mux"
)
func handler(w http.ResponseWriter, r *http.Request) {
return
}
func main() {
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.HandleFunc("/products", handler).Methods("POST")
r.HandleFunc("/articles", handler).Methods("GET")
r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
r.HandleFunc("/authors", handler).Queries("surname", "{surname}")
err := r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
pathTemplate, err := route.GetPathTemplate()
if err == nil {
fmt.Println("ROUTE:", pathTemplate)
}
pathRegexp, err := route.GetPathRegexp()
if err == nil {
fmt.Println("Path regexp:", pathRegexp)
}
queriesTemplates, err := route.GetQueriesTemplates()
if err == nil {
fmt.Println("Queries templates:", strings.Join(queriesTemplates, ","))
}
queriesRegexps, err := route.GetQueriesRegexp()
if err == nil {
fmt.Println("Queries regexps:", strings.Join(queriesRegexps, ","))
}
methods, err := route.GetMethods()
if err == nil {
fmt.Println("Methods:", strings.Join(methods, ","))
}
fmt.Println()
return nil
})
if err != nil {
fmt.Println(err)
}
http.Handle("/", r)
}
```
### Graceful Shutdown
Go 1.8 introduced the ability to [gracefully shutdown](https://golang.org/doc/go1.8#http_shutdown) a `*http.Server`. Here's how to do that alongside `mux`:
```go
package main
import (
"context"
"flag"
"log"
"net/http"
"os"
"os/signal"
"time"
"github.com/gorilla/mux"
)
func main() {
var wait time.Duration
flag.DurationVar(&wait, "graceful-timeout", time.Second * 15, "the duration for which the server gracefully wait for existing connections to finish - e.g. 15s or 1m")
flag.Parse()
r := mux.NewRouter()
// Add your routes as needed
srv := &http.Server{
Addr: "0.0.0.0:8080",
// Good practice to set timeouts to avoid Slowloris attacks.
WriteTimeout: time.Second * 15,
ReadTimeout: time.Second * 15,
IdleTimeout: time.Second * 60,
Handler: r, // Pass our instance of gorilla/mux in.
}
// Run our server in a goroutine so that it doesn't block.
go func() {
if err := srv.ListenAndServe(); err != nil {
log.Println(err)
}
}()
c := make(chan os.Signal, 1)
// We'll accept graceful shutdowns when quit via SIGINT (Ctrl+C)
// SIGKILL, SIGQUIT or SIGTERM (Ctrl+/) will not be caught.
signal.Notify(c, os.Interrupt)
// Block until we receive our signal.
<-c
// Create a deadline to wait for.
ctx, cancel := context.WithTimeout(context.Background(), wait)
defer cancel()
// Doesn't block if no connections, but will otherwise wait
// until the timeout deadline.
srv.Shutdown(ctx)
// Optionally, you could run srv.Shutdown in a goroutine and block on
// <-ctx.Done() if your application should wait for other services
// to finalize based on context cancellation.
log.Println("shutting down")
os.Exit(0)
}
```
### Middleware
Mux supports the addition of middlewares to a [Router](https://godoc.org/github.com/gorilla/mux#Router), which are executed in the order they are added if a match is found, including its subrouters.
Middlewares are (typically) small pieces of code which take one request, do something with it, and pass it down to another middleware or the final handler. Some common use cases for middleware are request logging, header manipulation, or `ResponseWriter` hijacking.
Mux middlewares are defined using the de facto standard type:
```go
type MiddlewareFunc func(http.Handler) http.Handler
```
Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed to it, and then calls the handler passed as parameter to the MiddlewareFunc. This takes advantage of closures being able access variables from the context where they are created, while retaining the signature enforced by the receivers.
A very basic middleware which logs the URI of the request being handled could be written as:
```go
func loggingMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Do stuff here
log.Println(r.RequestURI)
// Call the next handler, which can be another middleware in the chain, or the final handler.
next.ServeHTTP(w, r)
})
}
```
Middlewares can be added to a router using `Router.Use()`:
```go
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.Use(loggingMiddleware)
```
A more complex authentication middleware, which maps session token to users, could be written as:
```go
// Define our struct
type authenticationMiddleware struct {
tokenUsers map[string]string
}
// Initialize it somewhere
func (amw *authenticationMiddleware) Populate() {
amw.tokenUsers["00000000"] = "user0"
amw.tokenUsers["aaaaaaaa"] = "userA"
amw.tokenUsers["05f717e5"] = "randomUser"
amw.tokenUsers["deadbeef"] = "user0"
}
// Middleware function, which will be called for each request
func (amw *authenticationMiddleware) Middleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
token := r.Header.Get("X-Session-Token")
if user, found := amw.tokenUsers[token]; found {
// We found the token in our map
log.Printf("Authenticated user %s\n", user)
// Pass down the request to the next middleware (or final handler)
next.ServeHTTP(w, r)
} else {
// Write an error and stop the handler chain
http.Error(w, "Forbidden", http.StatusForbidden)
}
})
}
```
```go
r := mux.NewRouter()
r.HandleFunc("/", handler)
amw := authenticationMiddleware{}
amw.Populate()
r.Use(amw.Middleware)
```
Note: The handler chain will be stopped if your middleware doesn't call `next.ServeHTTP()` with the corresponding parameters. This can be used to abort a request if the middleware writer wants to. Middlewares _should_ write to `ResponseWriter` if they _are_ going to terminate the request, and they _should not_ write to `ResponseWriter` if they _are not_ going to terminate it.
### Testing Handlers
Testing handlers in a Go web application is straightforward, and _mux_ doesn't complicate this any further. Given two files: `endpoints.go` and `endpoints_test.go`, here's how we'd test an application using _mux_.
First, our simple HTTP handler:
```go
// endpoints.go
package main
func HealthCheckHandler(w http.ResponseWriter, r *http.Request) {
// A very simple health check.
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
// In the future we could report back on the status of our DB, or our cache
// (e.g. Redis) by performing a simple PING, and include them in the response.
io.WriteString(w, `{"alive": true}`)
}
func main() {
r := mux.NewRouter()
r.HandleFunc("/health", HealthCheckHandler)
log.Fatal(http.ListenAndServe("localhost:8080", r))
}
```
Our test code:
```go
// endpoints_test.go
package main
import (
"net/http"
"net/http/httptest"
"testing"
)
func TestHealthCheckHandler(t *testing.T) {
// Create a request to pass to our handler. We don't have any query parameters for now, so we'll
// pass 'nil' as the third parameter.
req, err := http.NewRequest("GET", "/health", nil)
if err != nil {
t.Fatal(err)
}
// We create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
rr := httptest.NewRecorder()
handler := http.HandlerFunc(HealthCheckHandler)
// Our handlers satisfy http.Handler, so we can call their ServeHTTP method
// directly and pass in our Request and ResponseRecorder.
handler.ServeHTTP(rr, req)
// Check the status code is what we expect.
if status := rr.Code; status != http.StatusOK {
t.Errorf("handler returned wrong status code: got %v want %v",
status, http.StatusOK)
}
// Check the response body is what we expect.
expected := `{"alive": true}`
if rr.Body.String() != expected {
t.Errorf("handler returned unexpected body: got %v want %v",
rr.Body.String(), expected)
}
}
```
In the case that our routes have [variables](#examples), we can pass those in the request. We could write
[table-driven tests](https://dave.cheney.net/2013/06/09/writing-table-driven-tests-in-go) to test multiple
possible route variables as needed.
```go
// endpoints.go
func main() {
r := mux.NewRouter()
// A route with a route variable:
r.HandleFunc("/metrics/{type}", MetricsHandler)
log.Fatal(http.ListenAndServe("localhost:8080", r))
}
```
Our test file, with a table-driven test of `routeVariables`:
```go
// endpoints_test.go
func TestMetricsHandler(t *testing.T) {
tt := []struct{
routeVariable string
shouldPass bool
}{
{"goroutines", true},
{"heap", true},
{"counters", true},
{"queries", true},
{"adhadaeqm3k", false},
}
for _, tc := range tt {
path := fmt.Sprintf("/metrics/%s", tc.routeVariable)
req, err := http.NewRequest("GET", path, nil)
if err != nil {
t.Fatal(err)
}
rr := httptest.NewRecorder()
// Need to create a router that we can pass the request through so that the vars will be added to the context
router := mux.NewRouter()
router.HandleFunc("/metrics/{type}", MetricsHandler)
router.ServeHTTP(rr, req)
// In this case, our MetricsHandler returns a non-200 response
// for a route variable it doesn't know about.
if rr.Code == http.StatusOK && !tc.shouldPass {
t.Errorf("handler should have failed on routeVariable %s: got %v want %v",
tc.routeVariable, rr.Code, http.StatusOK)
}
}
}
```
## Full Example
Here's a complete, runnable example of a small `mux` based server:
```go
package main
import (
"net/http"
"log"
"github.com/gorilla/mux"
)
func YourHandler(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Gorilla!\n"))
}
func main() {
r := mux.NewRouter()
// Routes consist of a path and a handler function.
r.HandleFunc("/", YourHandler)
// Bind to a port and pass our router in
log.Fatal(http.ListenAndServe(":8000", r))
}
```
## License
BSD licensed. See the LICENSE file for details.

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all:
cover:
go test -cover -v -coverprofile=cover.dat ./...
go tool cover -func cover.dat
.PHONY: cover

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Copyright (c) 2015, Dave Cheney <dave@cheney.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

269
vendor/github.com/pkg/errors/errors.go generated vendored Normal file
View file

@ -0,0 +1,269 @@
// Package errors provides simple error handling primitives.
//
// The traditional error handling idiom in Go is roughly akin to
//
// if err != nil {
// return err
// }
//
// which applied recursively up the call stack results in error reports
// without context or debugging information. The errors package allows
// programmers to add context to the failure path in their code in a way
// that does not destroy the original value of the error.
//
// Adding context to an error
//
// The errors.Wrap function returns a new error that adds context to the
// original error by recording a stack trace at the point Wrap is called,
// and the supplied message. For example
//
// _, err := ioutil.ReadAll(r)
// if err != nil {
// return errors.Wrap(err, "read failed")
// }
//
// If additional control is required the errors.WithStack and errors.WithMessage
// functions destructure errors.Wrap into its component operations of annotating
// an error with a stack trace and an a message, respectively.
//
// Retrieving the cause of an error
//
// Using errors.Wrap constructs a stack of errors, adding context to the
// preceding error. Depending on the nature of the error it may be necessary
// to reverse the operation of errors.Wrap to retrieve the original error
// for inspection. Any error value which implements this interface
//
// type causer interface {
// Cause() error
// }
//
// can be inspected by errors.Cause. errors.Cause will recursively retrieve
// the topmost error which does not implement causer, which is assumed to be
// the original cause. For example:
//
// switch err := errors.Cause(err).(type) {
// case *MyError:
// // handle specifically
// default:
// // unknown error
// }
//
// causer interface is not exported by this package, but is considered a part
// of stable public API.
//
// Formatted printing of errors
//
// All error values returned from this package implement fmt.Formatter and can
// be formatted by the fmt package. The following verbs are supported
//
// %s print the error. If the error has a Cause it will be
// printed recursively
// %v see %s
// %+v extended format. Each Frame of the error's StackTrace will
// be printed in detail.
//
// Retrieving the stack trace of an error or wrapper
//
// New, Errorf, Wrap, and Wrapf record a stack trace at the point they are
// invoked. This information can be retrieved with the following interface.
//
// type stackTracer interface {
// StackTrace() errors.StackTrace
// }
//
// Where errors.StackTrace is defined as
//
// type StackTrace []Frame
//
// The Frame type represents a call site in the stack trace. Frame supports
// the fmt.Formatter interface that can be used for printing information about
// the stack trace of this error. For example:
//
// if err, ok := err.(stackTracer); ok {
// for _, f := range err.StackTrace() {
// fmt.Printf("%+s:%d", f)
// }
// }
//
// stackTracer interface is not exported by this package, but is considered a part
// of stable public API.
//
// See the documentation for Frame.Format for more details.
package errors
import (
"fmt"
"io"
)
// New returns an error with the supplied message.
// New also records the stack trace at the point it was called.
func New(message string) error {
return &fundamental{
msg: message,
stack: callers(),
}
}
// Errorf formats according to a format specifier and returns the string
// as a value that satisfies error.
// Errorf also records the stack trace at the point it was called.
func Errorf(format string, args ...interface{}) error {
return &fundamental{
msg: fmt.Sprintf(format, args...),
stack: callers(),
}
}
// fundamental is an error that has a message and a stack, but no caller.
type fundamental struct {
msg string
*stack
}
func (f *fundamental) Error() string { return f.msg }
func (f *fundamental) Format(s fmt.State, verb rune) {
switch verb {
case 'v':
if s.Flag('+') {
io.WriteString(s, f.msg)
f.stack.Format(s, verb)
return
}
fallthrough
case 's':
io.WriteString(s, f.msg)
case 'q':
fmt.Fprintf(s, "%q", f.msg)
}
}
// WithStack annotates err with a stack trace at the point WithStack was called.
// If err is nil, WithStack returns nil.
func WithStack(err error) error {
if err == nil {
return nil
}
return &withStack{
err,
callers(),
}
}
type withStack struct {
error
*stack
}
func (w *withStack) Cause() error { return w.error }
func (w *withStack) Format(s fmt.State, verb rune) {
switch verb {
case 'v':
if s.Flag('+') {
fmt.Fprintf(s, "%+v", w.Cause())
w.stack.Format(s, verb)
return
}
fallthrough
case 's':
io.WriteString(s, w.Error())
case 'q':
fmt.Fprintf(s, "%q", w.Error())
}
}
// Wrap returns an error annotating err with a stack trace
// at the point Wrap is called, and the supplied message.
// If err is nil, Wrap returns nil.
func Wrap(err error, message string) error {
if err == nil {
return nil
}
err = &withMessage{
cause: err,
msg: message,
}
return &withStack{
err,
callers(),
}
}
// Wrapf returns an error annotating err with a stack trace
// at the point Wrapf is call, and the format specifier.
// If err is nil, Wrapf returns nil.
func Wrapf(err error, format string, args ...interface{}) error {
if err == nil {
return nil
}
err = &withMessage{
cause: err,
msg: fmt.Sprintf(format, args...),
}
return &withStack{
err,
callers(),
}
}
// WithMessage annotates err with a new message.
// If err is nil, WithMessage returns nil.
func WithMessage(err error, message string) error {
if err == nil {
return nil
}
return &withMessage{
cause: err,
msg: message,
}
}
type withMessage struct {
cause error
msg string
}
func (w *withMessage) Error() string { return w.msg + ": " + w.cause.Error() }
func (w *withMessage) Cause() error { return w.cause }
func (w *withMessage) Format(s fmt.State, verb rune) {
switch verb {
case 'v':
if s.Flag('+') {
fmt.Fprintf(s, "%+v\n", w.Cause())
io.WriteString(s, w.msg)
return
}
fallthrough
case 's', 'q':
io.WriteString(s, w.Error())
}
}
// Cause returns the underlying cause of the error, if possible.
// An error value has a cause if it implements the following
// interface:
//
// type causer interface {
// Cause() error
// }
//
// If the error does not implement Cause, the original error will
// be returned. If the error is nil, nil will be returned without further
// investigation.
func Cause(err error) error {
type causer interface {
Cause() error
}
for err != nil {
cause, ok := err.(causer)
if !ok {
break
}
err = cause.Cause()
}
return err
}

178
vendor/github.com/pkg/errors/stack.go generated vendored Normal file
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@ -0,0 +1,178 @@
package errors
import (
"fmt"
"io"
"path"
"runtime"
"strings"
)
// Frame represents a program counter inside a stack frame.
type Frame uintptr
// pc returns the program counter for this frame;
// multiple frames may have the same PC value.
func (f Frame) pc() uintptr { return uintptr(f) - 1 }
// file returns the full path to the file that contains the
// function for this Frame's pc.
func (f Frame) file() string {
fn := runtime.FuncForPC(f.pc())
if fn == nil {
return "unknown"
}
file, _ := fn.FileLine(f.pc())
return file
}
// line returns the line number of source code of the
// function for this Frame's pc.
func (f Frame) line() int {
fn := runtime.FuncForPC(f.pc())
if fn == nil {
return 0
}
_, line := fn.FileLine(f.pc())
return line
}
// Format formats the frame according to the fmt.Formatter interface.
//
// %s source file
// %d source line
// %n function name
// %v equivalent to %s:%d
//
// Format accepts flags that alter the printing of some verbs, as follows:
//
// %+s path of source file relative to the compile time GOPATH
// %+v equivalent to %+s:%d
func (f Frame) Format(s fmt.State, verb rune) {
switch verb {
case 's':
switch {
case s.Flag('+'):
pc := f.pc()
fn := runtime.FuncForPC(pc)
if fn == nil {
io.WriteString(s, "unknown")
} else {
file, _ := fn.FileLine(pc)
fmt.Fprintf(s, "%s\n\t%s", fn.Name(), file)
}
default:
io.WriteString(s, path.Base(f.file()))
}
case 'd':
fmt.Fprintf(s, "%d", f.line())
case 'n':
name := runtime.FuncForPC(f.pc()).Name()
io.WriteString(s, funcname(name))
case 'v':
f.Format(s, 's')
io.WriteString(s, ":")
f.Format(s, 'd')
}
}
// StackTrace is stack of Frames from innermost (newest) to outermost (oldest).
type StackTrace []Frame
func (st StackTrace) Format(s fmt.State, verb rune) {
switch verb {
case 'v':
switch {
case s.Flag('+'):
for _, f := range st {
fmt.Fprintf(s, "\n%+v", f)
}
case s.Flag('#'):
fmt.Fprintf(s, "%#v", []Frame(st))
default:
fmt.Fprintf(s, "%v", []Frame(st))
}
case 's':
fmt.Fprintf(s, "%s", []Frame(st))
}
}
// stack represents a stack of program counters.
type stack []uintptr
func (s *stack) Format(st fmt.State, verb rune) {
switch verb {
case 'v':
switch {
case st.Flag('+'):
for _, pc := range *s {
f := Frame(pc)
fmt.Fprintf(st, "\n%+v", f)
}
}
}
}
func (s *stack) StackTrace() StackTrace {
f := make([]Frame, len(*s))
for i := 0; i < len(f); i++ {
f[i] = Frame((*s)[i])
}
return f
}
func callers() *stack {
const depth = 32
var pcs [depth]uintptr
n := runtime.Callers(3, pcs[:])
var st stack = pcs[0:n]
return &st
}
// funcname removes the path prefix component of a function's name reported by func.Name().
func funcname(name string) string {
i := strings.LastIndex(name, "/")
name = name[i+1:]
i = strings.Index(name, ".")
return name[i+1:]
}
func trimGOPATH(name, file string) string {
// Here we want to get the source file path relative to the compile time
// GOPATH. As of Go 1.6.x there is no direct way to know the compiled
// GOPATH at runtime, but we can infer the number of path segments in the
// GOPATH. We note that fn.Name() returns the function name qualified by
// the import path, which does not include the GOPATH. Thus we can trim
// segments from the beginning of the file path until the number of path
// separators remaining is one more than the number of path separators in
// the function name. For example, given:
//
// GOPATH /home/user
// file /home/user/src/pkg/sub/file.go
// fn.Name() pkg/sub.Type.Method
//
// We want to produce:
//
// pkg/sub/file.go
//
// From this we can easily see that fn.Name() has one less path separator
// than our desired output. We count separators from the end of the file
// path until it finds two more than in the function name and then move
// one character forward to preserve the initial path segment without a
// leading separator.
const sep = "/"
goal := strings.Count(name, sep) + 2
i := len(file)
for n := 0; n < goal; n++ {
i = strings.LastIndex(file[:i], sep)
if i == -1 {
// not enough separators found, set i so that the slice expression
// below leaves file unmodified
i = -len(sep)
break
}
}
// get back to 0 or trim the leading separator
file = file[i+len(sep):]
return file
}

1
vendor/github.com/prometheus/client_golang/prometheus/.gitignore generated vendored
View file

@ -1 +0,0 @@
command-line-arguments.test

1
vendor/github.com/prometheus/client_golang/prometheus/README.md generated vendored
View file

@ -1 +0,0 @@
See [![go-doc](https://godoc.org/github.com/prometheus/client_golang/prometheus?status.svg)](https://godoc.org/github.com/prometheus/client_golang/prometheus).

379
vendor/github.com/prometheus/client_model/go/metrics.pb.go generated vendored
View file

@ -1,34 +1,23 @@
// Code generated by protoc-gen-go.
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: metrics.proto
// DO NOT EDIT!
/*
Package io_prometheus_client is a generated protocol buffer package.
It is generated from these files:
metrics.proto
It has these top-level messages:
LabelPair
Gauge
Counter
Quantile
Summary
Untyped
Histogram
Bucket
Metric
MetricFamily
*/
package io_prometheus_client
package io_prometheus_client // import "github.com/prometheus/client_model/go"
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
type MetricType int32
const (
@ -70,16 +59,41 @@ func (x *MetricType) UnmarshalJSON(data []byte) error {
*x = MetricType(value)
return nil
}
func (MetricType) EnumDescriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{0}
}
type LabelPair struct {
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
Value *string `protobuf:"bytes,2,opt,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
Value *string `protobuf:"bytes,2,opt,name=value" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *LabelPair) Reset() { *m = LabelPair{} }
func (m *LabelPair) String() string { return proto.CompactTextString(m) }
func (*LabelPair) ProtoMessage() {}
func (*LabelPair) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{0}
}
func (m *LabelPair) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_LabelPair.Unmarshal(m, b)
}
func (m *LabelPair) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_LabelPair.Marshal(b, m, deterministic)
}
func (dst *LabelPair) XXX_Merge(src proto.Message) {
xxx_messageInfo_LabelPair.Merge(dst, src)
}
func (m *LabelPair) XXX_Size() int {
return xxx_messageInfo_LabelPair.Size(m)
}
func (m *LabelPair) XXX_DiscardUnknown() {
xxx_messageInfo_LabelPair.DiscardUnknown(m)
}
var xxx_messageInfo_LabelPair proto.InternalMessageInfo
func (m *LabelPair) GetName() string {
if m != nil && m.Name != nil {
@ -96,13 +110,35 @@ func (m *LabelPair) GetValue() string {
}
type Gauge struct {
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Gauge) Reset() { *m = Gauge{} }
func (m *Gauge) String() string { return proto.CompactTextString(m) }
func (*Gauge) ProtoMessage() {}
func (*Gauge) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{1}
}
func (m *Gauge) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Gauge.Unmarshal(m, b)
}
func (m *Gauge) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Gauge.Marshal(b, m, deterministic)
}
func (dst *Gauge) XXX_Merge(src proto.Message) {
xxx_messageInfo_Gauge.Merge(dst, src)
}
func (m *Gauge) XXX_Size() int {
return xxx_messageInfo_Gauge.Size(m)
}
func (m *Gauge) XXX_DiscardUnknown() {
xxx_messageInfo_Gauge.DiscardUnknown(m)
}
var xxx_messageInfo_Gauge proto.InternalMessageInfo
func (m *Gauge) GetValue() float64 {
if m != nil && m.Value != nil {
@ -112,13 +148,35 @@ func (m *Gauge) GetValue() float64 {
}
type Counter struct {
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Counter) Reset() { *m = Counter{} }
func (m *Counter) String() string { return proto.CompactTextString(m) }
func (*Counter) ProtoMessage() {}
func (*Counter) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{2}
}
func (m *Counter) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Counter.Unmarshal(m, b)
}
func (m *Counter) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Counter.Marshal(b, m, deterministic)
}
func (dst *Counter) XXX_Merge(src proto.Message) {
xxx_messageInfo_Counter.Merge(dst, src)
}
func (m *Counter) XXX_Size() int {
return xxx_messageInfo_Counter.Size(m)
}
func (m *Counter) XXX_DiscardUnknown() {
xxx_messageInfo_Counter.DiscardUnknown(m)
}
var xxx_messageInfo_Counter proto.InternalMessageInfo
func (m *Counter) GetValue() float64 {
if m != nil && m.Value != nil {
@ -128,14 +186,36 @@ func (m *Counter) GetValue() float64 {
}
type Quantile struct {
Quantile *float64 `protobuf:"fixed64,1,opt,name=quantile" json:"quantile,omitempty"`
Value *float64 `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
Quantile *float64 `protobuf:"fixed64,1,opt,name=quantile" json:"quantile,omitempty"`
Value *float64 `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Quantile) Reset() { *m = Quantile{} }
func (m *Quantile) String() string { return proto.CompactTextString(m) }
func (*Quantile) ProtoMessage() {}
func (*Quantile) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{3}
}
func (m *Quantile) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Quantile.Unmarshal(m, b)
}
func (m *Quantile) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Quantile.Marshal(b, m, deterministic)
}
func (dst *Quantile) XXX_Merge(src proto.Message) {
xxx_messageInfo_Quantile.Merge(dst, src)
}
func (m *Quantile) XXX_Size() int {
return xxx_messageInfo_Quantile.Size(m)
}
func (m *Quantile) XXX_DiscardUnknown() {
xxx_messageInfo_Quantile.DiscardUnknown(m)
}
var xxx_messageInfo_Quantile proto.InternalMessageInfo
func (m *Quantile) GetQuantile() float64 {
if m != nil && m.Quantile != nil {
@ -152,15 +232,37 @@ func (m *Quantile) GetValue() float64 {
}
type Summary struct {
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count" json:"sample_count,omitempty"`
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum" json:"sample_sum,omitempty"`
Quantile []*Quantile `protobuf:"bytes,3,rep,name=quantile" json:"quantile,omitempty"`
XXX_unrecognized []byte `json:"-"`
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
Quantile []*Quantile `protobuf:"bytes,3,rep,name=quantile" json:"quantile,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Summary) Reset() { *m = Summary{} }
func (m *Summary) String() string { return proto.CompactTextString(m) }
func (*Summary) ProtoMessage() {}
func (*Summary) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{4}
}
func (m *Summary) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Summary.Unmarshal(m, b)
}
func (m *Summary) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Summary.Marshal(b, m, deterministic)
}
func (dst *Summary) XXX_Merge(src proto.Message) {
xxx_messageInfo_Summary.Merge(dst, src)
}
func (m *Summary) XXX_Size() int {
return xxx_messageInfo_Summary.Size(m)
}
func (m *Summary) XXX_DiscardUnknown() {
xxx_messageInfo_Summary.DiscardUnknown(m)
}
var xxx_messageInfo_Summary proto.InternalMessageInfo
func (m *Summary) GetSampleCount() uint64 {
if m != nil && m.SampleCount != nil {
@ -184,13 +286,35 @@ func (m *Summary) GetQuantile() []*Quantile {
}
type Untyped struct {
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Untyped) Reset() { *m = Untyped{} }
func (m *Untyped) String() string { return proto.CompactTextString(m) }
func (*Untyped) ProtoMessage() {}
func (*Untyped) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{5}
}
func (m *Untyped) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Untyped.Unmarshal(m, b)
}
func (m *Untyped) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Untyped.Marshal(b, m, deterministic)
}
func (dst *Untyped) XXX_Merge(src proto.Message) {
xxx_messageInfo_Untyped.Merge(dst, src)
}
func (m *Untyped) XXX_Size() int {
return xxx_messageInfo_Untyped.Size(m)
}
func (m *Untyped) XXX_DiscardUnknown() {
xxx_messageInfo_Untyped.DiscardUnknown(m)
}
var xxx_messageInfo_Untyped proto.InternalMessageInfo
func (m *Untyped) GetValue() float64 {
if m != nil && m.Value != nil {
@ -200,15 +324,37 @@ func (m *Untyped) GetValue() float64 {
}
type Histogram struct {
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count" json:"sample_count,omitempty"`
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum" json:"sample_sum,omitempty"`
Bucket []*Bucket `protobuf:"bytes,3,rep,name=bucket" json:"bucket,omitempty"`
XXX_unrecognized []byte `json:"-"`
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
Bucket []*Bucket `protobuf:"bytes,3,rep,name=bucket" json:"bucket,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Histogram) Reset() { *m = Histogram{} }
func (m *Histogram) String() string { return proto.CompactTextString(m) }
func (*Histogram) ProtoMessage() {}
func (*Histogram) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{6}
}
func (m *Histogram) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Histogram.Unmarshal(m, b)
}
func (m *Histogram) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Histogram.Marshal(b, m, deterministic)
}
func (dst *Histogram) XXX_Merge(src proto.Message) {
xxx_messageInfo_Histogram.Merge(dst, src)
}
func (m *Histogram) XXX_Size() int {
return xxx_messageInfo_Histogram.Size(m)
}
func (m *Histogram) XXX_DiscardUnknown() {
xxx_messageInfo_Histogram.DiscardUnknown(m)
}
var xxx_messageInfo_Histogram proto.InternalMessageInfo
func (m *Histogram) GetSampleCount() uint64 {
if m != nil && m.SampleCount != nil {
@ -232,14 +378,36 @@ func (m *Histogram) GetBucket() []*Bucket {
}
type Bucket struct {
CumulativeCount *uint64 `protobuf:"varint,1,opt,name=cumulative_count" json:"cumulative_count,omitempty"`
UpperBound *float64 `protobuf:"fixed64,2,opt,name=upper_bound" json:"upper_bound,omitempty"`
XXX_unrecognized []byte `json:"-"`
CumulativeCount *uint64 `protobuf:"varint,1,opt,name=cumulative_count,json=cumulativeCount" json:"cumulative_count,omitempty"`
UpperBound *float64 `protobuf:"fixed64,2,opt,name=upper_bound,json=upperBound" json:"upper_bound,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Bucket) Reset() { *m = Bucket{} }
func (m *Bucket) String() string { return proto.CompactTextString(m) }
func (*Bucket) ProtoMessage() {}
func (*Bucket) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{7}
}
func (m *Bucket) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Bucket.Unmarshal(m, b)
}
func (m *Bucket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Bucket.Marshal(b, m, deterministic)
}
func (dst *Bucket) XXX_Merge(src proto.Message) {
xxx_messageInfo_Bucket.Merge(dst, src)
}
func (m *Bucket) XXX_Size() int {
return xxx_messageInfo_Bucket.Size(m)
}
func (m *Bucket) XXX_DiscardUnknown() {
xxx_messageInfo_Bucket.DiscardUnknown(m)
}
var xxx_messageInfo_Bucket proto.InternalMessageInfo
func (m *Bucket) GetCumulativeCount() uint64 {
if m != nil && m.CumulativeCount != nil {
@ -256,19 +424,41 @@ func (m *Bucket) GetUpperBound() float64 {
}
type Metric struct {
Label []*LabelPair `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
Gauge *Gauge `protobuf:"bytes,2,opt,name=gauge" json:"gauge,omitempty"`
Counter *Counter `protobuf:"bytes,3,opt,name=counter" json:"counter,omitempty"`
Summary *Summary `protobuf:"bytes,4,opt,name=summary" json:"summary,omitempty"`
Untyped *Untyped `protobuf:"bytes,5,opt,name=untyped" json:"untyped,omitempty"`
Histogram *Histogram `protobuf:"bytes,7,opt,name=histogram" json:"histogram,omitempty"`
TimestampMs *int64 `protobuf:"varint,6,opt,name=timestamp_ms" json:"timestamp_ms,omitempty"`
XXX_unrecognized []byte `json:"-"`
Label []*LabelPair `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
Gauge *Gauge `protobuf:"bytes,2,opt,name=gauge" json:"gauge,omitempty"`
Counter *Counter `protobuf:"bytes,3,opt,name=counter" json:"counter,omitempty"`
Summary *Summary `protobuf:"bytes,4,opt,name=summary" json:"summary,omitempty"`
Untyped *Untyped `protobuf:"bytes,5,opt,name=untyped" json:"untyped,omitempty"`
Histogram *Histogram `protobuf:"bytes,7,opt,name=histogram" json:"histogram,omitempty"`
TimestampMs *int64 `protobuf:"varint,6,opt,name=timestamp_ms,json=timestampMs" json:"timestamp_ms,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Metric) Reset() { *m = Metric{} }
func (m *Metric) String() string { return proto.CompactTextString(m) }
func (*Metric) ProtoMessage() {}
func (*Metric) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{8}
}
func (m *Metric) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Metric.Unmarshal(m, b)
}
func (m *Metric) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Metric.Marshal(b, m, deterministic)
}
func (dst *Metric) XXX_Merge(src proto.Message) {
xxx_messageInfo_Metric.Merge(dst, src)
}
func (m *Metric) XXX_Size() int {
return xxx_messageInfo_Metric.Size(m)
}
func (m *Metric) XXX_DiscardUnknown() {
xxx_messageInfo_Metric.DiscardUnknown(m)
}
var xxx_messageInfo_Metric proto.InternalMessageInfo
func (m *Metric) GetLabel() []*LabelPair {
if m != nil {
@ -320,16 +510,38 @@ func (m *Metric) GetTimestampMs() int64 {
}
type MetricFamily struct {
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
Help *string `protobuf:"bytes,2,opt,name=help" json:"help,omitempty"`
Type *MetricType `protobuf:"varint,3,opt,name=type,enum=io.prometheus.client.MetricType" json:"type,omitempty"`
Metric []*Metric `protobuf:"bytes,4,rep,name=metric" json:"metric,omitempty"`
XXX_unrecognized []byte `json:"-"`
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
Help *string `protobuf:"bytes,2,opt,name=help" json:"help,omitempty"`
Type *MetricType `protobuf:"varint,3,opt,name=type,enum=io.prometheus.client.MetricType" json:"type,omitempty"`
Metric []*Metric `protobuf:"bytes,4,rep,name=metric" json:"metric,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *MetricFamily) Reset() { *m = MetricFamily{} }
func (m *MetricFamily) String() string { return proto.CompactTextString(m) }
func (*MetricFamily) ProtoMessage() {}
func (*MetricFamily) Descriptor() ([]byte, []int) {
return fileDescriptor_metrics_c97c9a2b9560cb8f, []int{9}
}
func (m *MetricFamily) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_MetricFamily.Unmarshal(m, b)
}
func (m *MetricFamily) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_MetricFamily.Marshal(b, m, deterministic)
}
func (dst *MetricFamily) XXX_Merge(src proto.Message) {
xxx_messageInfo_MetricFamily.Merge(dst, src)
}
func (m *MetricFamily) XXX_Size() int {
return xxx_messageInfo_MetricFamily.Size(m)
}
func (m *MetricFamily) XXX_DiscardUnknown() {
xxx_messageInfo_MetricFamily.DiscardUnknown(m)
}
var xxx_messageInfo_MetricFamily proto.InternalMessageInfo
func (m *MetricFamily) GetName() string {
if m != nil && m.Name != nil {
@ -360,5 +572,58 @@ func (m *MetricFamily) GetMetric() []*Metric {
}
func init() {
proto.RegisterType((*LabelPair)(nil), "io.prometheus.client.LabelPair")
proto.RegisterType((*Gauge)(nil), "io.prometheus.client.Gauge")
proto.RegisterType((*Counter)(nil), "io.prometheus.client.Counter")
proto.RegisterType((*Quantile)(nil), "io.prometheus.client.Quantile")
proto.RegisterType((*Summary)(nil), "io.prometheus.client.Summary")
proto.RegisterType((*Untyped)(nil), "io.prometheus.client.Untyped")
proto.RegisterType((*Histogram)(nil), "io.prometheus.client.Histogram")
proto.RegisterType((*Bucket)(nil), "io.prometheus.client.Bucket")
proto.RegisterType((*Metric)(nil), "io.prometheus.client.Metric")
proto.RegisterType((*MetricFamily)(nil), "io.prometheus.client.MetricFamily")
proto.RegisterEnum("io.prometheus.client.MetricType", MetricType_name, MetricType_value)
}
func init() { proto.RegisterFile("metrics.proto", fileDescriptor_metrics_c97c9a2b9560cb8f) }
var fileDescriptor_metrics_c97c9a2b9560cb8f = []byte{
// 591 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xac, 0x54, 0x4f, 0x4f, 0xdb, 0x4e,
0x14, 0xfc, 0x99, 0xd8, 0x09, 0x7e, 0x86, 0x5f, 0xad, 0x15, 0x07, 0xab, 0x2d, 0x25, 0xcd, 0x89,
0xf6, 0x10, 0x54, 0x04, 0xaa, 0x44, 0xdb, 0x03, 0x50, 0x1a, 0x2a, 0xd5, 0x40, 0x37, 0xc9, 0x81,
0x5e, 0xac, 0x8d, 0x59, 0x25, 0x56, 0xbd, 0xb6, 0x6b, 0xef, 0x22, 0xe5, 0xdc, 0x43, 0xbf, 0x47,
0xbf, 0x68, 0xab, 0xfd, 0xe3, 0x18, 0x24, 0xc3, 0xa9, 0xb7, 0xb7, 0xf3, 0x66, 0xde, 0x8e, 0x77,
0xc7, 0x0b, 0x9b, 0x8c, 0xf2, 0x32, 0x89, 0xab, 0x61, 0x51, 0xe6, 0x3c, 0x47, 0x5b, 0x49, 0x2e,
0x2b, 0x46, 0xf9, 0x82, 0x8a, 0x6a, 0x18, 0xa7, 0x09, 0xcd, 0xf8, 0xe0, 0x10, 0xdc, 0x2f, 0x64,
0x46, 0xd3, 0x2b, 0x92, 0x94, 0x08, 0x81, 0x9d, 0x11, 0x46, 0x03, 0xab, 0x6f, 0xed, 0xba, 0x58,
0xd5, 0x68, 0x0b, 0x9c, 0x5b, 0x92, 0x0a, 0x1a, 0xac, 0x29, 0x50, 0x2f, 0x06, 0xdb, 0xe0, 0x8c,
0x88, 0x98, 0xdf, 0x69, 0x4b, 0x8d, 0x55, 0xb7, 0x77, 0xa0, 0x77, 0x9a, 0x8b, 0x8c, 0xd3, 0xf2,
0x01, 0xc2, 0x7b, 0x58, 0xff, 0x2a, 0x48, 0xc6, 0x93, 0x94, 0xa2, 0xa7, 0xb0, 0xfe, 0xc3, 0xd4,
0x86, 0xb4, 0x5a, 0xdf, 0xdf, 0x7d, 0xa5, 0xfe, 0x65, 0x41, 0x6f, 0x2c, 0x18, 0x23, 0xe5, 0x12,
0xbd, 0x84, 0x8d, 0x8a, 0xb0, 0x22, 0xa5, 0x51, 0x2c, 0x77, 0x54, 0x13, 0x6c, 0xec, 0x69, 0x4c,
0x99, 0x40, 0xdb, 0x00, 0x86, 0x52, 0x09, 0x66, 0x26, 0xb9, 0x1a, 0x19, 0x0b, 0x86, 0x8e, 0xee,
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0xf2, 0x43, 0xa7, 0x19, 0x5f, 0x16, 0xf4, 0xe6, 0x81, 0x0f, 0xfd, 0x69, 0x81, 0x7b, 0x9e, 0x54,
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0xf3, 0x76, 0xab, 0x27, 0x8a, 0x83, 0x0d, 0x77, 0x30, 0x81, 0xae, 0x46, 0xd0, 0x2b, 0xf0, 0x63,
0xc1, 0x44, 0x4a, 0x78, 0x72, 0x7b, 0xdf, 0xc5, 0x93, 0x06, 0xd7, 0x4e, 0x76, 0xc0, 0x13, 0x45,
0x41, 0xcb, 0x68, 0x96, 0x8b, 0xec, 0xc6, 0x58, 0x01, 0x05, 0x9d, 0x48, 0x64, 0xf0, 0x67, 0x0d,
0xba, 0xa1, 0xca, 0x18, 0x3a, 0x04, 0x27, 0x95, 0x31, 0x0a, 0x2c, 0xe5, 0x6a, 0xa7, 0xdd, 0xd5,
0x2a, 0x69, 0x58, 0xb3, 0xd1, 0x1b, 0x70, 0xe6, 0x32, 0x46, 0x6a, 0xb8, 0xb7, 0xff, 0xac, 0x5d,
0xa6, 0x92, 0x86, 0x35, 0x13, 0xbd, 0x85, 0x5e, 0xac, 0xa3, 0x15, 0x74, 0x94, 0x68, 0xbb, 0x5d,
0x64, 0xf2, 0x87, 0x6b, 0xb6, 0x14, 0x56, 0x3a, 0x33, 0x81, 0xfd, 0x98, 0xd0, 0x04, 0x0b, 0xd7,
0x6c, 0x29, 0x14, 0xfa, 0x8e, 0x03, 0xe7, 0x31, 0xa1, 0x09, 0x02, 0xae, 0xd9, 0xe8, 0x03, 0xb8,
0x8b, 0xfa, 0xea, 0x83, 0x9e, 0x92, 0x3e, 0x70, 0x30, 0xab, 0x84, 0xe0, 0x46, 0x21, 0xc3, 0xc2,
0x13, 0x46, 0x2b, 0x4e, 0x58, 0x11, 0xb1, 0x2a, 0xe8, 0xf6, 0xad, 0xdd, 0x0e, 0xf6, 0x56, 0x58,
0x58, 0x0d, 0x7e, 0x5b, 0xb0, 0xa1, 0x6f, 0xe0, 0x13, 0x61, 0x49, 0xba, 0x6c, 0xfd, 0x83, 0x11,
0xd8, 0x0b, 0x9a, 0x16, 0xe6, 0x07, 0x56, 0x35, 0x3a, 0x00, 0x5b, 0x7a, 0x54, 0x47, 0xf8, 0xff,
0x7e, 0xbf, 0xdd, 0x95, 0x9e, 0x3c, 0x59, 0x16, 0x14, 0x2b, 0xb6, 0x0c, 0x9f, 0x7e, 0x53, 0x02,
0xfb, 0xb1, 0xf0, 0x69, 0x1d, 0x36, 0xdc, 0xd7, 0x21, 0x40, 0x33, 0x09, 0x79, 0xd0, 0x3b, 0xbd,
0x9c, 0x5e, 0x4c, 0xce, 0xb0, 0xff, 0x1f, 0x72, 0xc1, 0x19, 0x1d, 0x4f, 0x47, 0x67, 0xbe, 0x25,
0xf1, 0xf1, 0x34, 0x0c, 0x8f, 0xf1, 0xb5, 0xbf, 0x26, 0x17, 0xd3, 0x8b, 0xc9, 0xf5, 0xd5, 0xd9,
0x47, 0xbf, 0x83, 0x36, 0xc1, 0x3d, 0xff, 0x3c, 0x9e, 0x5c, 0x8e, 0xf0, 0x71, 0xe8, 0xdb, 0x27,
0x18, 0x5a, 0x5f, 0xb2, 0x6f, 0x47, 0xf3, 0x84, 0x2f, 0xc4, 0x6c, 0x18, 0xe7, 0x6c, 0xaf, 0xe9,
0xee, 0xe9, 0x6e, 0xc4, 0xf2, 0x1b, 0x9a, 0xee, 0xcd, 0xf3, 0x77, 0x49, 0x1e, 0x35, 0xdd, 0x48,
0x77, 0xff, 0x06, 0x00, 0x00, 0xff, 0xff, 0x45, 0x21, 0x7f, 0x64, 0x2b, 0x05, 0x00, 0x00,
}

2
vendor/github.com/prometheus/common/expfmt/text_parse.go generated vendored
View file

@ -359,7 +359,7 @@ func (p *TextParser) startLabelValue() stateFn {
}
return p.readingValue
default:
p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.Value))
p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.GetValue()))
return nil
}
}

67
vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt generated vendored
View file

@ -1,67 +0,0 @@
PACKAGE
package goautoneg
import "bitbucket.org/ww/goautoneg"
HTTP Content-Type Autonegotiation.
The functions in this package implement the behaviour specified in
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
Copyright (c) 2011, Open Knowledge Foundation Ltd.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
Neither the name of the Open Knowledge Foundation Ltd. nor the
names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
FUNCTIONS
func Negotiate(header string, alternatives []string) (content_type string)
Negotiate the most appropriate content_type given the accept header
and a list of alternatives.
func ParseAccept(header string) (accept []Accept)
Parse an Accept Header string returning a sorted list
of clauses
TYPES
type Accept struct {
Type, SubType string
Q float32
Params map[string]string
}
Structure to represent a clause in an HTTP Accept Header
SUBDIRECTORIES
.hg

1
vendor/github.com/prometheus/procfs/.gitignore generated vendored
View file

@ -1 +0,0 @@
/fixtures/

15
vendor/github.com/prometheus/procfs/.travis.yml generated vendored
View file

@ -1,15 +0,0 @@
sudo: false
language: go
go:
- 1.7.x
- 1.8.x
- 1.9.x
- 1.10.x
- 1.x
go_import_path: github.com/prometheus/procfs
script:
- make style check_license vet test staticcheck

18
vendor/github.com/prometheus/procfs/CONTRIBUTING.md generated vendored
View file

@ -1,18 +0,0 @@
# Contributing
Prometheus uses GitHub to manage reviews of pull requests.
* If you have a trivial fix or improvement, go ahead and create a pull request,
addressing (with `@...`) the maintainer of this repository (see
[MAINTAINERS.md](MAINTAINERS.md)) in the description of the pull request.
* If you plan to do something more involved, first discuss your ideas
on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers).
This will avoid unnecessary work and surely give you and us a good deal
of inspiration.
* Relevant coding style guidelines are the [Go Code Review
Comments](https://code.google.com/p/go-wiki/wiki/CodeReviewComments)
and the _Formatting and style_ section of Peter Bourgon's [Go: Best
Practices for Production
Environments](http://peter.bourgon.org/go-in-production/#formatting-and-style).

1
vendor/github.com/prometheus/procfs/MAINTAINERS.md generated vendored
View file

@ -1 +0,0 @@
* Tobias Schmidt <tobidt@gmail.com>

71
vendor/github.com/prometheus/procfs/Makefile generated vendored
View file

@ -1,71 +0,0 @@
# Copyright 2018 The Prometheus Authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Ensure GOBIN is not set during build so that promu is installed to the correct path
unexport GOBIN
GO ?= go
GOFMT ?= $(GO)fmt
FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH)))
STATICCHECK := $(FIRST_GOPATH)/bin/staticcheck
pkgs = $(shell $(GO) list ./... | grep -v /vendor/)
PREFIX ?= $(shell pwd)
BIN_DIR ?= $(shell pwd)
ifdef DEBUG
bindata_flags = -debug
endif
STATICCHECK_IGNORE =
all: format staticcheck build test
style:
@echo ">> checking code style"
@! $(GOFMT) -d $(shell find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'
check_license:
@echo ">> checking license header"
@./scripts/check_license.sh
test: fixtures/.unpacked sysfs/fixtures/.unpacked
@echo ">> running all tests"
@$(GO) test -race $(shell $(GO) list ./... | grep -v /vendor/ | grep -v examples)
format:
@echo ">> formatting code"
@$(GO) fmt $(pkgs)
vet:
@echo ">> vetting code"
@$(GO) vet $(pkgs)
staticcheck: $(STATICCHECK)
@echo ">> running staticcheck"
@$(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" $(pkgs)
%/.unpacked: %.ttar
./ttar -C $(dir $*) -x -f $*.ttar
touch $@
$(FIRST_GOPATH)/bin/staticcheck:
@GOOS= GOARCH= $(GO) get -u honnef.co/go/tools/cmd/staticcheck
.PHONY: all style check_license format test vet staticcheck
# Declaring the binaries at their default locations as PHONY targets is a hack
# to ensure the latest version is downloaded on every make execution.
# If this is not desired, copy/symlink these binaries to a different path and
# set the respective environment variables.
.PHONY: $(GOPATH)/bin/staticcheck

11
vendor/github.com/prometheus/procfs/README.md generated vendored
View file

@ -1,11 +0,0 @@
# procfs
This procfs package provides functions to retrieve system, kernel and process
metrics from the pseudo-filesystem proc.
*WARNING*: This package is a work in progress. Its API may still break in
backwards-incompatible ways without warnings. Use it at your own risk.
[![GoDoc](https://godoc.org/github.com/prometheus/procfs?status.png)](https://godoc.org/github.com/prometheus/procfs)
[![Build Status](https://travis-ci.org/prometheus/procfs.svg?branch=master)](https://travis-ci.org/prometheus/procfs)
[![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/procfs)](https://goreportcard.com/report/github.com/prometheus/procfs)

446
vendor/github.com/prometheus/procfs/fixtures.ttar generated vendored
View file

@ -1,446 +0,0 @@
# Archive created by ttar -c -f fixtures.ttar fixtures/
Directory: fixtures
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: fixtures/26231
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/cmdline
Lines: 1
vimNULLBYTEtest.goNULLBYTE+10NULLBYTEEOF
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/comm
Lines: 1
vim
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/exe
SymlinkTo: /usr/bin/vim
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: fixtures/26231/fd
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/fd/0
SymlinkTo: ../../symlinktargets/abc
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/fd/1
SymlinkTo: ../../symlinktargets/def
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/fd/10
SymlinkTo: ../../symlinktargets/xyz
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: fixtures/26231/fd/2
SymlinkTo: ../../symlinktargets/ghi
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15
vendor/github.com/prometheus/procfs/internal/util/parse.go generated vendored
View file

@ -13,7 +13,11 @@
package util
import "strconv"
import (
"io/ioutil"
"strconv"
"strings"
)
// ParseUint32s parses a slice of strings into a slice of uint32s.
func ParseUint32s(ss []string) ([]uint32, error) {
@ -44,3 +48,12 @@ func ParseUint64s(ss []string) ([]uint64, error) {
return us, nil
}
// ReadUintFromFile reads a file and attempts to parse a uint64 from it.
func ReadUintFromFile(path string) (uint64, error) {
data, err := ioutil.ReadFile(path)
if err != nil {
return 0, err
}
return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64)
}

45
vendor/github.com/prometheus/procfs/internal/util/sysreadfile_linux.go generated vendored Normal file
View file

@ -0,0 +1,45 @@
// Copyright 2018 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !windows
package util
import (
"bytes"
"os"
"syscall"
)
// SysReadFile is a simplified ioutil.ReadFile that invokes syscall.Read directly.
// https://github.com/prometheus/node_exporter/pull/728/files
func SysReadFile(file string) (string, error) {
f, err := os.Open(file)
if err != nil {
return "", err
}
defer f.Close()
// On some machines, hwmon drivers are broken and return EAGAIN. This causes
// Go's ioutil.ReadFile implementation to poll forever.
//
// Since we either want to read data or bail immediately, do the simplest
// possible read using syscall directly.
b := make([]byte, 128)
n, err := syscall.Read(int(f.Fd()), b)
if err != nil {
return "", err
}
return string(bytes.TrimSpace(b[:n])), nil
}

51
vendor/github.com/prometheus/procfs/mountstats.go generated vendored
View file

@ -39,8 +39,11 @@ const (
statVersion10 = "1.0"
statVersion11 = "1.1"
fieldTransport10Len = 10
fieldTransport11Len = 13
fieldTransport10TCPLen = 10
fieldTransport10UDPLen = 7
fieldTransport11TCPLen = 13
fieldTransport11UDPLen = 10
)
// A Mount is a device mount parsed from /proc/[pid]/mountstats.
@ -186,6 +189,8 @@ type NFSOperationStats struct {
// A NFSTransportStats contains statistics for the NFS mount RPC requests and
// responses.
type NFSTransportStats struct {
// The transport protocol used for the NFS mount.
Protocol string
// The local port used for the NFS mount.
Port uint64
// Number of times the client has had to establish a connection from scratch
@ -360,7 +365,7 @@ func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, e
return nil, fmt.Errorf("not enough information for NFS transport stats: %v", ss)
}
tstats, err := parseNFSTransportStats(ss[2:], statVersion)
tstats, err := parseNFSTransportStats(ss[1:], statVersion)
if err != nil {
return nil, err
}
@ -522,13 +527,33 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
// parseNFSTransportStats parses a NFSTransportStats line using an input set of
// integer fields matched to a specific stats version.
func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats, error) {
// Extract the protocol field. It is the only string value in the line
protocol := ss[0]
ss = ss[1:]
switch statVersion {
case statVersion10:
if len(ss) != fieldTransport10Len {
var expectedLength int
if protocol == "tcp" {
expectedLength = fieldTransport10TCPLen
} else if protocol == "udp" {
expectedLength = fieldTransport10UDPLen
} else {
return nil, fmt.Errorf("invalid NFS protocol \"%s\" in stats 1.0 statement: %v", protocol, ss)
}
if len(ss) != expectedLength {
return nil, fmt.Errorf("invalid NFS transport stats 1.0 statement: %v", ss)
}
case statVersion11:
if len(ss) != fieldTransport11Len {
var expectedLength int
if protocol == "tcp" {
expectedLength = fieldTransport11TCPLen
} else if protocol == "udp" {
expectedLength = fieldTransport11UDPLen
} else {
return nil, fmt.Errorf("invalid NFS protocol \"%s\" in stats 1.1 statement: %v", protocol, ss)
}
if len(ss) != expectedLength {
return nil, fmt.Errorf("invalid NFS transport stats 1.1 statement: %v", ss)
}
default:
@ -536,12 +561,13 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
}
// Allocate enough for v1.1 stats since zero value for v1.1 stats will be okay
// in a v1.0 response.
// in a v1.0 response. Since the stat length is bigger for TCP stats, we use
// the TCP length here.
//
// Note: slice length must be set to length of v1.1 stats to avoid a panic when
// only v1.0 stats are present.
// See: https://github.com/prometheus/node_exporter/issues/571.
ns := make([]uint64, fieldTransport11Len)
ns := make([]uint64, fieldTransport11TCPLen)
for i, s := range ss {
n, err := strconv.ParseUint(s, 10, 64)
if err != nil {
@ -551,7 +577,18 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
ns[i] = n
}
// The fields differ depending on the transport protocol (TCP or UDP)
// From https://utcc.utoronto.ca/%7Ecks/space/blog/linux/NFSMountstatsXprt
//
// For the udp RPC transport there is no connection count, connect idle time,
// or idle time (fields #3, #4, and #5); all other fields are the same. So
// we set them to 0 here.
if protocol == "udp" {
ns = append(ns[:2], append(make([]uint64, 3), ns[2:]...)...)
}
return &NFSTransportStats{
Protocol: protocol,
Port: ns[0],
Bind: ns[1],
Connect: ns[2],

20
vendor/github.com/prometheus/procfs/proc.go generated vendored
View file

@ -156,6 +156,26 @@ func (p Proc) Executable() (string, error) {
return exe, err
}
// Cwd returns the absolute path to the current working directory of the process.
func (p Proc) Cwd() (string, error) {
wd, err := os.Readlink(p.path("cwd"))
if os.IsNotExist(err) {
return "", nil
}
return wd, err
}
// RootDir returns the absolute path to the process's root directory (as set by chroot)
func (p Proc) RootDir() (string, error) {
rdir, err := os.Readlink(p.path("root"))
if os.IsNotExist(err) {
return "", nil
}
return rdir, err
}
// FileDescriptors returns the currently open file descriptors of a process.
func (p Proc) FileDescriptors() ([]uintptr, error) {
names, err := p.fileDescriptors()

389
vendor/github.com/prometheus/procfs/ttar generated vendored
View file

@ -1,389 +0,0 @@
#!/usr/bin/env bash
# Purpose: plain text tar format
# Limitations: - only suitable for text files, directories, and symlinks
# - stores only filename, content, and mode
# - not designed for untrusted input
#
# Note: must work with bash version 3.2 (macOS)
# Copyright 2017 Roger Luethi
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -o errexit -o nounset
# Sanitize environment (for instance, standard sorting of glob matches)
export LC_ALL=C
path=""
CMD=""
ARG_STRING="$*"
#------------------------------------------------------------------------------
# Not all sed implementations can work on null bytes. In order to make ttar
# work out of the box on macOS, use Python as a stream editor.
USE_PYTHON=0
PYTHON_CREATE_FILTER=$(cat << 'PCF'
#!/usr/bin/env python
import re
import sys
for line in sys.stdin:
line = re.sub(r'EOF', r'\EOF', line)
line = re.sub(r'NULLBYTE', r'\NULLBYTE', line)
line = re.sub('\x00', r'NULLBYTE', line)
sys.stdout.write(line)
PCF
)
PYTHON_EXTRACT_FILTER=$(cat << 'PEF'
#!/usr/bin/env python
import re
import sys
for line in sys.stdin:
line = re.sub(r'(?<!\\)NULLBYTE', '\x00', line)
line = re.sub(r'\\NULLBYTE', 'NULLBYTE', line)
line = re.sub(r'([^\\])EOF', r'\1', line)
line = re.sub(r'\\EOF', 'EOF', line)
sys.stdout.write(line)
PEF
)
function test_environment {
if [[ "$(echo "a" | sed 's/a/\x0/' | wc -c)" -ne 2 ]]; then
echo "WARNING sed unable to handle null bytes, using Python (slow)."
if ! which python >/dev/null; then
echo "ERROR Python not found. Aborting."
exit 2
fi
USE_PYTHON=1
fi
}
#------------------------------------------------------------------------------
function usage {
bname=$(basename "$0")
cat << USAGE
Usage: $bname [-C <DIR>] -c -f <ARCHIVE> <FILE...> (create archive)
$bname -t -f <ARCHIVE> (list archive contents)
$bname [-C <DIR>] -x -f <ARCHIVE> (extract archive)
Options:
-C <DIR> (change directory)
-v (verbose)
Example: Change to sysfs directory, create ttar file from fixtures directory
$bname -C sysfs -c -f sysfs/fixtures.ttar fixtures/
USAGE
exit "$1"
}
function vecho {
if [ "${VERBOSE:-}" == "yes" ]; then
echo >&7 "$@"
fi
}
function set_cmd {
if [ -n "$CMD" ]; then
echo "ERROR: more than one command given"
echo
usage 2
fi
CMD=$1
}
unset VERBOSE
while getopts :cf:htxvC: opt; do
case $opt in
c)
set_cmd "create"
;;
f)
ARCHIVE=$OPTARG
;;
h)
usage 0
;;
t)
set_cmd "list"
;;
x)
set_cmd "extract"
;;
v)
VERBOSE=yes
exec 7>&1
;;
C)
CDIR=$OPTARG
;;
*)
echo >&2 "ERROR: invalid option -$OPTARG"
echo
usage 1
;;
esac
done
# Remove processed options from arguments
shift $(( OPTIND - 1 ));
if [ "${CMD:-}" == "" ]; then
echo >&2 "ERROR: no command given"
echo
usage 1
elif [ "${ARCHIVE:-}" == "" ]; then
echo >&2 "ERROR: no archive name given"
echo
usage 1
fi
function list {
local path=""
local size=0
local line_no=0
local ttar_file=$1
if [ -n "${2:-}" ]; then
echo >&2 "ERROR: too many arguments."
echo
usage 1
fi
if [ ! -e "$ttar_file" ]; then
echo >&2 "ERROR: file not found ($ttar_file)"
echo
usage 1
fi
while read -r line; do
line_no=$(( line_no + 1 ))
if [ $size -gt 0 ]; then
size=$(( size - 1 ))
continue
fi
if [[ $line =~ ^Path:\ (.*)$ ]]; then
path=${BASH_REMATCH[1]}
elif [[ $line =~ ^Lines:\ (.*)$ ]]; then
size=${BASH_REMATCH[1]}
echo "$path"
elif [[ $line =~ ^Directory:\ (.*)$ ]]; then
path=${BASH_REMATCH[1]}
echo "$path/"
elif [[ $line =~ ^SymlinkTo:\ (.*)$ ]]; then
echo "$path -> ${BASH_REMATCH[1]}"
fi
done < "$ttar_file"
}
function extract {
local path=""
local size=0
local line_no=0
local ttar_file=$1
if [ -n "${2:-}" ]; then
echo >&2 "ERROR: too many arguments."
echo
usage 1
fi
if [ ! -e "$ttar_file" ]; then
echo >&2 "ERROR: file not found ($ttar_file)"
echo
usage 1
fi
while IFS= read -r line; do
line_no=$(( line_no + 1 ))
local eof_without_newline
if [ "$size" -gt 0 ]; then
if [[ "$line" =~ [^\\]EOF ]]; then
# An EOF not preceeded by a backslash indicates that the line
# does not end with a newline
eof_without_newline=1
else
eof_without_newline=0
fi
# Replace NULLBYTE with null byte if at beginning of line
# Replace NULLBYTE with null byte unless preceeded by backslash
# Remove one backslash in front of NULLBYTE (if any)
# Remove EOF unless preceeded by backslash
# Remove one backslash in front of EOF
if [ $USE_PYTHON -eq 1 ]; then
echo -n "$line" | python -c "$PYTHON_EXTRACT_FILTER" >> "$path"
else
# The repeated pattern makes up for sed's lack of negative
# lookbehind assertions (for consecutive null bytes).
echo -n "$line" | \
sed -e 's/^NULLBYTE/\x0/g;
s/\([^\\]\)NULLBYTE/\1\x0/g;
s/\([^\\]\)NULLBYTE/\1\x0/g;
s/\\NULLBYTE/NULLBYTE/g;
s/\([^\\]\)EOF/\1/g;
s/\\EOF/EOF/g;
' >> "$path"
fi
if [[ "$eof_without_newline" -eq 0 ]]; then
echo >> "$path"
fi
size=$(( size - 1 ))
continue
fi
if [[ $line =~ ^Path:\ (.*)$ ]]; then
path=${BASH_REMATCH[1]}
if [ -e "$path" ] || [ -L "$path" ]; then
rm "$path"
fi
elif [[ $line =~ ^Lines:\ (.*)$ ]]; then
size=${BASH_REMATCH[1]}
# Create file even if it is zero-length.
touch "$path"
vecho " $path"
elif [[ $line =~ ^Mode:\ (.*)$ ]]; then
mode=${BASH_REMATCH[1]}
chmod "$mode" "$path"
vecho "$mode"
elif [[ $line =~ ^Directory:\ (.*)$ ]]; then
path=${BASH_REMATCH[1]}
mkdir -p "$path"
vecho " $path/"
elif [[ $line =~ ^SymlinkTo:\ (.*)$ ]]; then
ln -s "${BASH_REMATCH[1]}" "$path"
vecho " $path -> ${BASH_REMATCH[1]}"
elif [[ $line =~ ^# ]]; then
# Ignore comments between files
continue
else
echo >&2 "ERROR: Unknown keyword on line $line_no: $line"
exit 1
fi
done < "$ttar_file"
}
function div {
echo "# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -" \
"- - - - - -"
}
function get_mode {
local mfile=$1
if [ -z "${STAT_OPTION:-}" ]; then
if stat -c '%a' "$mfile" >/dev/null 2>&1; then
# GNU stat
STAT_OPTION='-c'
STAT_FORMAT='%a'
else
# BSD stat
STAT_OPTION='-f'
# Octal output, user/group/other (omit file type, sticky bit)
STAT_FORMAT='%OLp'
fi
fi
stat "${STAT_OPTION}" "${STAT_FORMAT}" "$mfile"
}
function _create {
shopt -s nullglob
local mode
local eof_without_newline
while (( "$#" )); do
file=$1
if [ -L "$file" ]; then
echo "Path: $file"
symlinkTo=$(readlink "$file")
echo "SymlinkTo: $symlinkTo"
vecho " $file -> $symlinkTo"
div
elif [ -d "$file" ]; then
# Strip trailing slash (if there is one)
file=${file%/}
echo "Directory: $file"
mode=$(get_mode "$file")
echo "Mode: $mode"
vecho "$mode $file/"
div
# Find all files and dirs, including hidden/dot files
for x in "$file/"{*,.[^.]*}; do
_create "$x"
done
elif [ -f "$file" ]; then
echo "Path: $file"
lines=$(wc -l "$file"|awk '{print $1}')
eof_without_newline=0
if [[ "$(wc -c "$file"|awk '{print $1}')" -gt 0 ]] && \
[[ "$(tail -c 1 "$file" | wc -l)" -eq 0 ]]; then
eof_without_newline=1
lines=$((lines+1))
fi
echo "Lines: $lines"
# Add backslash in front of EOF
# Add backslash in front of NULLBYTE
# Replace null byte with NULLBYTE
if [ $USE_PYTHON -eq 1 ]; then
< "$file" python -c "$PYTHON_CREATE_FILTER"
else
< "$file" \
sed 's/EOF/\\EOF/g;
s/NULLBYTE/\\NULLBYTE/g;
s/\x0/NULLBYTE/g;
'
fi
if [[ "$eof_without_newline" -eq 1 ]]; then
# Finish line with EOF to indicate that the original line did
# not end with a linefeed
echo "EOF"
fi
mode=$(get_mode "$file")
echo "Mode: $mode"
vecho "$mode $file"
div
else
echo >&2 "ERROR: file not found ($file in $(pwd))"
exit 2
fi
shift
done
}
function create {
ttar_file=$1
shift
if [ -z "${1:-}" ]; then
echo >&2 "ERROR: missing arguments."
echo
usage 1
fi
if [ -e "$ttar_file" ]; then
rm "$ttar_file"
fi
exec > "$ttar_file"
echo "# Archive created by ttar $ARG_STRING"
_create "$@"
}
test_environment
if [ -n "${CDIR:-}" ]; then
if [[ "$ARCHIVE" != /* ]]; then
# Relative path: preserve the archive's location before changing
# directory
ARCHIVE="$(pwd)/$ARCHIVE"
fi
cd "$CDIR"
fi
"$CMD" "$ARCHIVE" "$@"

2
vendor/github.com/prometheus/procfs/xfrm.go generated vendored
View file

@ -113,7 +113,7 @@ func (fs FS) NewXfrmStat() (XfrmStat, error) {
if len(fields) != 2 {
return XfrmStat{}, fmt.Errorf(
"couldnt parse %s line %s", file.Name(), s.Text())
"couldn't parse %s line %s", file.Name(), s.Text())
}
name := fields[0]

2
vendor/github.com/spf13/pflag/.gitignore generated vendored
View file

@ -1,2 +0,0 @@
.idea/*

21
vendor/github.com/spf13/pflag/.travis.yml generated vendored
View file

@ -1,21 +0,0 @@
sudo: false
language: go
go:
- 1.7.3
- 1.8.1
- tip
matrix:
allow_failures:
- go: tip
install:
- go get github.com/golang/lint/golint
- export PATH=$GOPATH/bin:$PATH
- go install ./...
script:
- verify/all.sh -v
- go test ./...

296
vendor/github.com/spf13/pflag/README.md generated vendored
View file

@ -1,296 +0,0 @@
[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/pflag)](https://goreportcard.com/report/github.com/spf13/pflag)
[![GoDoc](https://godoc.org/github.com/spf13/pflag?status.svg)](https://godoc.org/github.com/spf13/pflag)
## Description
pflag is a drop-in replacement for Go's flag package, implementing
POSIX/GNU-style --flags.
pflag is compatible with the [GNU extensions to the POSIX recommendations
for command-line options][1]. For a more precise description, see the
"Command-line flag syntax" section below.
[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
pflag is available under the same style of BSD license as the Go language,
which can be found in the LICENSE file.
## Installation
pflag is available using the standard `go get` command.
Install by running:
go get github.com/spf13/pflag
Run tests by running:
go test github.com/spf13/pflag
## Usage
pflag is a drop-in replacement of Go's native flag package. If you import
pflag under the name "flag" then all code should continue to function
with no changes.
``` go
import flag "github.com/spf13/pflag"
```
There is one exception to this: if you directly instantiate the Flag struct
there is one more field "Shorthand" that you will need to set.
Most code never instantiates this struct directly, and instead uses
functions such as String(), BoolVar(), and Var(), and is therefore
unaffected.
Define flags using flag.String(), Bool(), Int(), etc.
This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
``` go
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
```
If you like, you can bind the flag to a variable using the Var() functions.
``` go
var flagvar int
func init() {
flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
}
```
Or you can create custom flags that satisfy the Value interface (with
pointer receivers) and couple them to flag parsing by
``` go
flag.Var(&flagVal, "name", "help message for flagname")
```
For such flags, the default value is just the initial value of the variable.
After all flags are defined, call
``` go
flag.Parse()
```
to parse the command line into the defined flags.
Flags may then be used directly. If you're using the flags themselves,
they are all pointers; if you bind to variables, they're values.
``` go
fmt.Println("ip has value ", *ip)
fmt.Println("flagvar has value ", flagvar)
```
There are helpers function to get values later if you have the FlagSet but
it was difficult to keep up with all of the flag pointers in your code.
If you have a pflag.FlagSet with a flag called 'flagname' of type int you
can use GetInt() to get the int value. But notice that 'flagname' must exist
and it must be an int. GetString("flagname") will fail.
``` go
i, err := flagset.GetInt("flagname")
```
After parsing, the arguments after the flag are available as the
slice flag.Args() or individually as flag.Arg(i).
The arguments are indexed from 0 through flag.NArg()-1.
The pflag package also defines some new functions that are not in flag,
that give one-letter shorthands for flags. You can use these by appending
'P' to the name of any function that defines a flag.
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
var flagvar bool
func init() {
flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
}
flag.VarP(&flagVal, "varname", "v", "help message")
```
Shorthand letters can be used with single dashes on the command line.
Boolean shorthand flags can be combined with other shorthand flags.
The default set of command-line flags is controlled by
top-level functions. The FlagSet type allows one to define
independent sets of flags, such as to implement subcommands
in a command-line interface. The methods of FlagSet are
analogous to the top-level functions for the command-line
flag set.
## Setting no option default values for flags
After you create a flag it is possible to set the pflag.NoOptDefVal for
the given flag. Doing this changes the meaning of the flag slightly. If
a flag has a NoOptDefVal and the flag is set on the command line without
an option the flag will be set to the NoOptDefVal. For example given:
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
flag.Lookup("flagname").NoOptDefVal = "4321"
```
Would result in something like
| Parsed Arguments | Resulting Value |
| ------------- | ------------- |
| --flagname=1357 | ip=1357 |
| --flagname | ip=4321 |
| [nothing] | ip=1234 |
## Command line flag syntax
```
--flag // boolean flags, or flags with no option default values
--flag x // only on flags without a default value
--flag=x
```
Unlike the flag package, a single dash before an option means something
different than a double dash. Single dashes signify a series of shorthand
letters for flags. All but the last shorthand letter must be boolean flags
or a flag with a default value
```
// boolean or flags where the 'no option default value' is set
-f
-f=true
-abc
but
-b true is INVALID
// non-boolean and flags without a 'no option default value'
-n 1234
-n=1234
-n1234
// mixed
-abcs "hello"
-absd="hello"
-abcs1234
```
Flag parsing stops after the terminator "--". Unlike the flag package,
flags can be interspersed with arguments anywhere on the command line
before this terminator.
Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags (in their long form) accept 1, 0, t, f, true, false,
TRUE, FALSE, True, False.
Duration flags accept any input valid for time.ParseDuration.
## Mutating or "Normalizing" Flag names
It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
``` go
func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
from := []string{"-", "_"}
to := "."
for _, sep := range from {
name = strings.Replace(name, sep, to, -1)
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
```
**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
``` go
func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
switch name {
case "old-flag-name":
name = "new-flag-name"
break
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
```
## Deprecating a flag or its shorthand
It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
```go
// deprecate a flag by specifying its name and a usage message
flags.MarkDeprecated("badflag", "please use --good-flag instead")
```
This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
```go
// deprecate a flag shorthand by specifying its flag name and a usage message
flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
```
This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
Note that usage message is essential here, and it should not be empty.
## Hidden flags
It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
```go
// hide a flag by specifying its name
flags.MarkHidden("secretFlag")
```
## Disable sorting of flags
`pflag` allows you to disable sorting of flags for help and usage message.
**Example**:
```go
flags.BoolP("verbose", "v", false, "verbose output")
flags.String("coolflag", "yeaah", "it's really cool flag")
flags.Int("usefulflag", 777, "sometimes it's very useful")
flags.SortFlags = false
flags.PrintDefaults()
```
**Output**:
```
-v, --verbose verbose output
--coolflag string it's really cool flag (default "yeaah")
--usefulflag int sometimes it's very useful (default 777)
```
## Supporting Go flags when using pflag
In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
to support flags defined by third-party dependencies (e.g. `golang/glog`).
**Example**: You want to add the Go flags to the `CommandLine` flagset
```go
import (
goflag "flag"
flag "github.com/spf13/pflag"
)
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
func main() {
flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
flag.Parse()
}
```
## More info
You can see the full reference documentation of the pflag package
[at godoc.org][3], or through go's standard documentation system by
running `godoc -http=:6060` and browsing to
[http://localhost:6060/pkg/github.com/spf13/pflag][2] after
installation.
[2]: http://localhost:6060/pkg/github.com/spf13/pflag
[3]: http://godoc.org/github.com/spf13/pflag

104
vendor/github.com/spf13/pflag/bytes.go generated vendored
View file

@ -1,6 +1,7 @@
package pflag
import (
"encoding/base64"
"encoding/hex"
"fmt"
"strings"
@ -9,10 +10,12 @@ import (
// BytesHex adapts []byte for use as a flag. Value of flag is HEX encoded
type bytesHexValue []byte
// String implements pflag.Value.String.
func (bytesHex bytesHexValue) String() string {
return fmt.Sprintf("%X", []byte(bytesHex))
}
// Set implements pflag.Value.Set.
func (bytesHex *bytesHexValue) Set(value string) error {
bin, err := hex.DecodeString(strings.TrimSpace(value))
@ -25,6 +28,7 @@ func (bytesHex *bytesHexValue) Set(value string) error {
return nil
}
// Type implements pflag.Value.Type.
func (*bytesHexValue) Type() string {
return "bytesHex"
}
@ -103,3 +107,103 @@ func BytesHex(name string, value []byte, usage string) *[]byte {
func BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
return CommandLine.BytesHexP(name, shorthand, value, usage)
}
// BytesBase64 adapts []byte for use as a flag. Value of flag is Base64 encoded
type bytesBase64Value []byte
// String implements pflag.Value.String.
func (bytesBase64 bytesBase64Value) String() string {
return base64.StdEncoding.EncodeToString([]byte(bytesBase64))
}
// Set implements pflag.Value.Set.
func (bytesBase64 *bytesBase64Value) Set(value string) error {
bin, err := base64.StdEncoding.DecodeString(strings.TrimSpace(value))
if err != nil {
return err
}
*bytesBase64 = bin
return nil
}
// Type implements pflag.Value.Type.
func (*bytesBase64Value) Type() string {
return "bytesBase64"
}
func newBytesBase64Value(val []byte, p *[]byte) *bytesBase64Value {
*p = val
return (*bytesBase64Value)(p)
}
func bytesBase64ValueConv(sval string) (interface{}, error) {
bin, err := base64.StdEncoding.DecodeString(sval)
if err == nil {
return bin, nil
}
return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
}
// GetBytesBase64 return the []byte value of a flag with the given name
func (f *FlagSet) GetBytesBase64(name string) ([]byte, error) {
val, err := f.getFlagType(name, "bytesBase64", bytesBase64ValueConv)
if err != nil {
return []byte{}, err
}
return val.([]byte), nil
}
// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func (f *FlagSet) BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
f.VarP(newBytesBase64Value(value, p), name, "", usage)
}
// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
f.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
}
// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
CommandLine.VarP(newBytesBase64Value(value, p), name, "", usage)
}
// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
func BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
CommandLine.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
}
// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func (f *FlagSet) BytesBase64(name string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesBase64VarP(p, name, "", value, usage)
return p
}
// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesBase64VarP(p, name, shorthand, value, usage)
return p
}
// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func BytesBase64(name string, value []byte, usage string) *[]byte {
return CommandLine.BytesBase64P(name, "", value, usage)
}
// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
func BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
return CommandLine.BytesBase64P(name, shorthand, value, usage)
}

10
vendor/github.com/spf13/pflag/flag.go generated vendored
View file

@ -925,13 +925,16 @@ func stripUnknownFlagValue(args []string) []string {
}
first := args[0]
if first[0] == '-' {
if len(first) > 0 && first[0] == '-' {
//--unknown --next-flag ...
return args
}
//--unknown arg ... (args will be arg ...)
return args[1:]
if len(args) > 1 {
return args[1:]
}
return nil
}
func (f *FlagSet) parseLongArg(s string, args []string, fn parseFunc) (a []string, err error) {
@ -990,11 +993,12 @@ func (f *FlagSet) parseLongArg(s string, args []string, fn parseFunc) (a []strin
}
func (f *FlagSet) parseSingleShortArg(shorthands string, args []string, fn parseFunc) (outShorts string, outArgs []string, err error) {
outArgs = args
if strings.HasPrefix(shorthands, "test.") {
return
}
outArgs = args
outShorts = shorthands[1:]
c := shorthands[0]

149
vendor/github.com/spf13/pflag/string_to_int.go generated vendored Normal file
View file

@ -0,0 +1,149 @@
package pflag
import (
"bytes"
"fmt"
"strconv"
"strings"
)
// -- stringToInt Value
type stringToIntValue struct {
value *map[string]int
changed bool
}
func newStringToIntValue(val map[string]int, p *map[string]int) *stringToIntValue {
ssv := new(stringToIntValue)
ssv.value = p
*ssv.value = val
return ssv
}
// Format: a=1,b=2
func (s *stringToIntValue) Set(val string) error {
ss := strings.Split(val, ",")
out := make(map[string]int, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return fmt.Errorf("%s must be formatted as key=value", pair)
}
var err error
out[kv[0]], err = strconv.Atoi(kv[1])
if err != nil {
return err
}
}
if !s.changed {
*s.value = out
} else {
for k, v := range out {
(*s.value)[k] = v
}
}
s.changed = true
return nil
}
func (s *stringToIntValue) Type() string {
return "stringToInt"
}
func (s *stringToIntValue) String() string {
var buf bytes.Buffer
i := 0
for k, v := range *s.value {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(k)
buf.WriteRune('=')
buf.WriteString(strconv.Itoa(v))
i++
}
return "[" + buf.String() + "]"
}
func stringToIntConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// An empty string would cause an empty map
if len(val) == 0 {
return map[string]int{}, nil
}
ss := strings.Split(val, ",")
out := make(map[string]int, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return nil, fmt.Errorf("%s must be formatted as key=value", pair)
}
var err error
out[kv[0]], err = strconv.Atoi(kv[1])
if err != nil {
return nil, err
}
}
return out, nil
}
// GetStringToInt return the map[string]int value of a flag with the given name
func (f *FlagSet) GetStringToInt(name string) (map[string]int, error) {
val, err := f.getFlagType(name, "stringToInt", stringToIntConv)
if err != nil {
return map[string]int{}, err
}
return val.(map[string]int), nil
}
// StringToIntVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a map[string]int variable in which to store the values of the multiple flags.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToIntVar(p *map[string]int, name string, value map[string]int, usage string) {
f.VarP(newStringToIntValue(value, p), name, "", usage)
}
// StringToIntVarP is like StringToIntVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToIntVarP(p *map[string]int, name, shorthand string, value map[string]int, usage string) {
f.VarP(newStringToIntValue(value, p), name, shorthand, usage)
}
// StringToIntVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a map[string]int variable in which to store the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToIntVar(p *map[string]int, name string, value map[string]int, usage string) {
CommandLine.VarP(newStringToIntValue(value, p), name, "", usage)
}
// StringToIntVarP is like StringToIntVar, but accepts a shorthand letter that can be used after a single dash.
func StringToIntVarP(p *map[string]int, name, shorthand string, value map[string]int, usage string) {
CommandLine.VarP(newStringToIntValue(value, p), name, shorthand, usage)
}
// StringToInt defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]int variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToInt(name string, value map[string]int, usage string) *map[string]int {
p := map[string]int{}
f.StringToIntVarP(&p, name, "", value, usage)
return &p
}
// StringToIntP is like StringToInt, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToIntP(name, shorthand string, value map[string]int, usage string) *map[string]int {
p := map[string]int{}
f.StringToIntVarP(&p, name, shorthand, value, usage)
return &p
}
// StringToInt defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]int variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToInt(name string, value map[string]int, usage string) *map[string]int {
return CommandLine.StringToIntP(name, "", value, usage)
}
// StringToIntP is like StringToInt, but accepts a shorthand letter that can be used after a single dash.
func StringToIntP(name, shorthand string, value map[string]int, usage string) *map[string]int {
return CommandLine.StringToIntP(name, shorthand, value, usage)
}

160
vendor/github.com/spf13/pflag/string_to_string.go generated vendored Normal file
View file

@ -0,0 +1,160 @@
package pflag
import (
"bytes"
"encoding/csv"
"fmt"
"strings"
)
// -- stringToString Value
type stringToStringValue struct {
value *map[string]string
changed bool
}
func newStringToStringValue(val map[string]string, p *map[string]string) *stringToStringValue {
ssv := new(stringToStringValue)
ssv.value = p
*ssv.value = val
return ssv
}
// Format: a=1,b=2
func (s *stringToStringValue) Set(val string) error {
var ss []string
n := strings.Count(val, "=")
switch n {
case 0:
return fmt.Errorf("%s must be formatted as key=value", val)
case 1:
ss = append(ss, strings.Trim(val, `"`))
default:
r := csv.NewReader(strings.NewReader(val))
var err error
ss, err = r.Read()
if err != nil {
return err
}
}
out := make(map[string]string, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return fmt.Errorf("%s must be formatted as key=value", pair)
}
out[kv[0]] = kv[1]
}
if !s.changed {
*s.value = out
} else {
for k, v := range out {
(*s.value)[k] = v
}
}
s.changed = true
return nil
}
func (s *stringToStringValue) Type() string {
return "stringToString"
}
func (s *stringToStringValue) String() string {
records := make([]string, 0, len(*s.value)>>1)
for k, v := range *s.value {
records = append(records, k+"="+v)
}
var buf bytes.Buffer
w := csv.NewWriter(&buf)
if err := w.Write(records); err != nil {
panic(err)
}
w.Flush()
return "[" + strings.TrimSpace(buf.String()) + "]"
}
func stringToStringConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// An empty string would cause an empty map
if len(val) == 0 {
return map[string]string{}, nil
}
r := csv.NewReader(strings.NewReader(val))
ss, err := r.Read()
if err != nil {
return nil, err
}
out := make(map[string]string, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return nil, fmt.Errorf("%s must be formatted as key=value", pair)
}
out[kv[0]] = kv[1]
}
return out, nil
}
// GetStringToString return the map[string]string value of a flag with the given name
func (f *FlagSet) GetStringToString(name string) (map[string]string, error) {
val, err := f.getFlagType(name, "stringToString", stringToStringConv)
if err != nil {
return map[string]string{}, err
}
return val.(map[string]string), nil
}
// StringToStringVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a map[string]string variable in which to store the values of the multiple flags.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
f.VarP(newStringToStringValue(value, p), name, "", usage)
}
// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
f.VarP(newStringToStringValue(value, p), name, shorthand, usage)
}
// StringToStringVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a map[string]string variable in which to store the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
CommandLine.VarP(newStringToStringValue(value, p), name, "", usage)
}
// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
func StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
CommandLine.VarP(newStringToStringValue(value, p), name, shorthand, usage)
}
// StringToString defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToString(name string, value map[string]string, usage string) *map[string]string {
p := map[string]string{}
f.StringToStringVarP(&p, name, "", value, usage)
return &p
}
// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
p := map[string]string{}
f.StringToStringVarP(&p, name, shorthand, value, usage)
return &p
}
// StringToString defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToString(name string, value map[string]string, usage string) *map[string]string {
return CommandLine.StringToStringP(name, "", value, usage)
}
// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
func StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
return CommandLine.StringToStringP(name, shorthand, value, usage)
}

1
vendor/github.com/tdewolff/minify/.gitattributes generated vendored
View file

@ -1 +0,0 @@
benchmarks/sample_* linguist-generated=true

4
vendor/github.com/tdewolff/minify/.gitignore generated vendored
View file

@ -1,4 +0,0 @@
dist/
benchmarks/*
!benchmarks/*.go
!benchmarks/sample_*

26
vendor/github.com/tdewolff/minify/.goreleaser.yml generated vendored
View file

@ -1,26 +0,0 @@
builds:
- binary: minify
main: ./cmd/minify/
ldflags: -s -w -X main.Version={{.Version}} -X main.Commit={{.Commit}} -X main.Date={{.Date}}
goos:
- windows
- linux
- darwin
goarch:
- amd64
- 386
- arm
- arm64
archive:
format: tar.gz
format_overrides:
- goos: windows
format: zip
name_template: "{{.Binary}}_{{.Version}}_{{.Os}}_{{.Arch}}"
files:
- README.md
- LICENSE.md
snapshot:
name_template: "devel"
release:
draft: true

5
vendor/github.com/tdewolff/minify/.travis.yml generated vendored
View file

@ -1,5 +0,0 @@
language: go
before_install:
- go get github.com/mattn/goveralls
script:
- goveralls -v -service travis-ci -repotoken $COVERALLS_TOKEN -ignore=cmd/minify/* || go test -v ./...

591
vendor/github.com/tdewolff/minify/README.md generated vendored
View file

@ -1,591 +0,0 @@
# Minify <a name="minify"></a> [![Build Status](https://travis-ci.org/tdewolff/minify.svg?branch=master)](https://travis-ci.org/tdewolff/minify) [![GoDoc](http://godoc.org/github.com/tdewolff/minify?status.svg)](http://godoc.org/github.com/tdewolff/minify) [![Coverage Status](https://coveralls.io/repos/github/tdewolff/minify/badge.svg?branch=master)](https://coveralls.io/github/tdewolff/minify?branch=master) [![Join the chat at https://gitter.im/tdewolff/minify](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/tdewolff/minify?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
**[Online demo](http://go.tacodewolff.nl/minify) if you need to minify files *now*.**
**[Command line tool](https://github.com/tdewolff/minify/tree/master/cmd/minify) that minifies concurrently and supports watching file changes.**
**[All releases](https://github.com/tdewolff/minify/releases) for various platforms.**
---
Minify is a minifier package written in [Go][1]. It provides HTML5, CSS3, JS, JSON, SVG and XML minifiers and an interface to implement any other minifier. Minification is the process of removing bytes from a file (such as whitespace) without changing its output and therefore shrinking its size and speeding up transmission over the internet and possibly parsing. The implemented minifiers are designed for high performance.
The core functionality associates mimetypes with minification functions, allowing embedded resources (like CSS or JS within HTML files) to be minified as well. Users can add new implementations that are triggered based on a mimetype (or pattern), or redirect to an external command (like ClosureCompiler, UglifyCSS, ...).
#### Table of Contents
- [Minify](#minify)
- [Prologue](#prologue)
- [Installation](#installation)
- [API stability](#api-stability)
- [Testing](#testing)
- [Performance](#performance)
- [HTML](#html)
- [Whitespace removal](#whitespace-removal)
- [CSS](#css)
- [JS](#js)
- [JSON](#json)
- [SVG](#svg)
- [XML](#xml)
- [Usage](#usage)
- [New](#new)
- [From reader](#from-reader)
- [From bytes](#from-bytes)
- [From string](#from-string)
- [To reader](#to-reader)
- [To writer](#to-writer)
- [Middleware](#middleware)
- [Custom minifier](#custom-minifier)
- [Mediatypes](#mediatypes)
- [Examples](#examples)
- [Common minifiers](#common-minifiers)
- [Custom minifier](#custom-minifier-example)
- [ResponseWriter](#responsewriter)
- [Templates](#templates)
- [License](#license)
### Status
* CSS: **fully implemented**
* HTML: **fully implemented**
* JS: improved JSmin implementation
* JSON: **fully implemented**
* SVG: partially implemented; in development
* XML: **fully implemented**
### Roadmap
- [ ] General speed-up of all minifiers (use ASM for whitespace funcs)
- [ ] Improve JS minifiers by shortening variables and proper semicolon omission
- [ ] Speed-up SVG minifier, it is very slow
- [ ] Proper parser error reporting and line number + column information
- [ ] Generation of source maps (uncertain, might slow down parsers too much if it cannot run separately nicely)
- [ ] Look into compression of images, fonts and other web resources (into package `compress`?)
- [ ] Create a cmd to pack webfiles (much like webpack), ie. merging CSS and JS files, inlining small external files, minification and gzipping. This would work on HTML files.
- [ ] Create a package to format files, much like `gofmt` for Go files
## Prologue
Minifiers or bindings to minifiers exist in almost all programming languages. Some implementations are merely using several regular-expressions to trim whitespace and comments (even though regex for parsing HTML/XML is ill-advised, for a good read see [Regular Expressions: Now You Have Two Problems](http://blog.codinghorror.com/regular-expressions-now-you-have-two-problems/)). Some implementations are much more profound, such as the [YUI Compressor](http://yui.github.io/yuicompressor/) and [Google Closure Compiler](https://github.com/google/closure-compiler) for JS. As most existing implementations either use Java or JavaScript and don't focus on performance, they are pretty slow. Additionally, loading the whole file into memory at once is bad for really large files (or impossible for streams).
This minifier proves to be that fast and extensive minifier that can handle HTML and any other filetype it may contain (CSS, JS, ...). It streams the input and output and can minify files concurrently.
## Installation
Run the following command
go get github.com/tdewolff/minify
or add the following imports and run the project with `go get`
``` go
import (
"github.com/tdewolff/minify"
"github.com/tdewolff/minify/css"
"github.com/tdewolff/minify/html"
"github.com/tdewolff/minify/js"
"github.com/tdewolff/minify/json"
"github.com/tdewolff/minify/svg"
"github.com/tdewolff/minify/xml"
)
```
## API stability
There is no guarantee for absolute stability, but I take issues and bugs seriously and don't take API changes lightly. The library will be maintained in a compatible way unless vital bugs prevent me from doing so. There has been one API change after v1 which added options support and I took the opportunity to push through some more API clean up as well. There are no plans whatsoever for future API changes.
## Testing
For all subpackages and the imported `parse` and `buffer` packages, test coverage of 100% is pursued. Besides full coverage, the minifiers are [fuzz tested](https://github.com/tdewolff/fuzz) using [github.com/dvyukov/go-fuzz](http://www.github.com/dvyukov/go-fuzz), see [the wiki](https://github.com/tdewolff/minify/wiki) for the most important bugs found by fuzz testing. Furthermore am I working on adding visual testing to ensure that minification doesn't change anything visually. By using the WebKit browser to render the original and minified pages we can check whether any pixel is different.
These tests ensure that everything works as intended, the code does not crash (whatever the input) and that it doesn't change the final result visually. If you still encounter a bug, please report [here](https://github.com/tdewolff/minify/issues)!
## Performance
The benchmarks directory contains a number of standardized samples used to compare performance between changes. To give an indication of the speed of this library, I've ran the tests on my Thinkpad T460 (i5-6300U quad-core 2.4GHz running Arch Linux) using Go 1.9.2.
```
name time/op
CSS/sample_bootstrap.css-4 2.26ms ± 0%
CSS/sample_gumby.css-4 2.92ms ± 1%
HTML/sample_amazon.html-4 2.33ms ± 2%
HTML/sample_bbc.html-4 1.02ms ± 1%
HTML/sample_blogpost.html-4 171µs ± 2%
HTML/sample_es6.html-4 14.5ms ± 0%
HTML/sample_stackoverflow.html-4 2.41ms ± 1%
HTML/sample_wikipedia.html-4 4.76ms ± 0%
JS/sample_ace.js-4 7.41ms ± 0%
JS/sample_dot.js-4 63.7µs ± 0%
JS/sample_jquery.js-4 2.99ms ± 0%
JS/sample_jqueryui.js-4 5.92ms ± 2%
JS/sample_moment.js-4 1.09ms ± 1%
JSON/sample_large.json-4 2.95ms ± 0%
JSON/sample_testsuite.json-4 1.51ms ± 1%
JSON/sample_twitter.json-4 6.75µs ± 1%
SVG/sample_arctic.svg-4 62.3ms ± 1%
SVG/sample_gopher.svg-4 218µs ± 0%
SVG/sample_usa.svg-4 33.1ms ± 3%
XML/sample_books.xml-4 36.2µs ± 0%
XML/sample_catalog.xml-4 14.9µs ± 0%
XML/sample_omg.xml-4 6.31ms ± 1%
name speed
CSS/sample_bootstrap.css-4 60.8MB/s ± 0%
CSS/sample_gumby.css-4 63.9MB/s ± 1%
HTML/sample_amazon.html-4 203MB/s ± 2%
HTML/sample_bbc.html-4 113MB/s ± 1%
HTML/sample_blogpost.html-4 123MB/s ± 2%
HTML/sample_es6.html-4 70.7MB/s ± 0%
HTML/sample_stackoverflow.html-4 85.2MB/s ± 1%
HTML/sample_wikipedia.html-4 93.6MB/s ± 0%
JS/sample_ace.js-4 86.9MB/s ± 0%
JS/sample_dot.js-4 81.0MB/s ± 0%
JS/sample_jquery.js-4 82.8MB/s ± 0%
JS/sample_jqueryui.js-4 79.3MB/s ± 2%
JS/sample_moment.js-4 91.2MB/s ± 1%
JSON/sample_large.json-4 258MB/s ± 0%
JSON/sample_testsuite.json-4 457MB/s ± 1%
JSON/sample_twitter.json-4 226MB/s ± 1%
SVG/sample_arctic.svg-4 23.6MB/s ± 1%
SVG/sample_gopher.svg-4 26.7MB/s ± 0%
SVG/sample_usa.svg-4 30.9MB/s ± 3%
XML/sample_books.xml-4 122MB/s ± 0%
XML/sample_catalog.xml-4 130MB/s ± 0%
XML/sample_omg.xml-4 180MB/s ± 1%
```
## HTML
HTML (with JS and CSS) minification typically shaves off about 10%.
The HTML5 minifier uses these minifications:
- strip unnecessary whitespace and otherwise collapse it to one space (or newline if it originally contained a newline)
- strip superfluous quotes, or uses single/double quotes whichever requires fewer escapes
- strip default attribute values and attribute boolean values
- strip some empty attributes
- strip unrequired tags (`html`, `head`, `body`, ...)
- strip unrequired end tags (`tr`, `td`, `li`, ... and often `p`)
- strip default protocols (`http:`, `https:` and `javascript:`)
- strip all comments (including conditional comments, old IE versions are not supported anymore by Microsoft)
- shorten `doctype` and `meta` charset
- lowercase tags, attributes and some values to enhance gzip compression
Options:
- `KeepConditionalComments` preserve all IE conditional comments such as `<!--[if IE 6]><![endif]-->` and `<![if IE 6]><![endif]>`, see https://msdn.microsoft.com/en-us/library/ms537512(v=vs.85).aspx#syntax
- `KeepDefaultAttrVals` preserve default attribute values such as `<script type="text/javascript">`
- `KeepDocumentTags` preserve `html`, `head` and `body` tags
- `KeepEndTags` preserve all end tags
- `KeepWhitespace` preserve whitespace between inline tags but still collapse multiple whitespace characters into one
After recent benchmarking and profiling it became really fast and minifies pages in the 10ms range, making it viable for on-the-fly minification.
However, be careful when doing on-the-fly minification. Minification typically trims off 10% and does this at worst around about 20MB/s. This means users have to download slower than 2MB/s to make on-the-fly minification worthwhile. This may or may not apply in your situation. Rather use caching!
### Whitespace removal
The whitespace removal mechanism collapses all sequences of whitespace (spaces, newlines, tabs) to a single space. If the sequence contained a newline or carriage return it will collapse into a newline character instead. It trims all text parts (in between tags) depending on whether it was preceded by a space from a previous piece of text and whether it is followed up by a block element or an inline element. In the former case we can omit spaces while for inline elements whitespace has significance.
Make sure your HTML doesn't depend on whitespace between `block` elements that have been changed to `inline` or `inline-block` elements using CSS. Your layout *should not* depend on those whitespaces as the minifier will remove them. An example is a menu consisting of multiple `<li>` that have `display:inline-block` applied and have whitespace in between them. It is bad practise to rely on whitespace for element positioning anyways!
## CSS
Minification typically shaves off about 10%-15%.
The CSS minifier will only use safe minifications:
- remove comments and unnecessary whitespace
- remove trailing semicolons
- optimize `margin`, `padding` and `border-width` number of sides
- shorten numbers by removing unnecessary `+` and zeros and rewriting with/without exponent
- remove dimension and percentage for zero values
- remove quotes for URLs
- remove quotes for font families and make lowercase
- rewrite hex colors to/from color names, or to 3 digit hex
- rewrite `rgb(`, `rgba(`, `hsl(` and `hsla(` colors to hex or name
- replace `normal` and `bold` by numbers for `font-weight` and `font`
- replace `none` &#8594; `0` for `border`, `background` and `outline`
- lowercase all identifiers except classes, IDs and URLs to enhance gzip compression
- shorten MS alpha function
- rewrite data URIs with base64 or ASCII whichever is shorter
- calls minifier for data URI mediatypes, thus you can compress embedded SVG files if you have that minifier attached
It does purposely not use the following techniques:
- (partially) merge rulesets
- (partially) split rulesets
- collapse multiple declarations when main declaration is defined within a ruleset (don't put `font-weight` within an already existing `font`, too complex)
- remove overwritten properties in ruleset (this not always overwrites it, for example with `!important`)
- rewrite properties into one ruleset if possible (like `margin-top`, `margin-right`, `margin-bottom` and `margin-left` &#8594; `margin`)
- put nested ID selector at the front (`body > div#elem p` &#8594; `#elem p`)
- rewrite attribute selectors for IDs and classes (`div[id=a]` &#8594; `div#a`)
- put space after pseudo-selectors (IE6 is old, move on!)
It's great that so many other tools make comparison tables: [CSS Minifier Comparison](http://www.codenothing.com/benchmarks/css-compressor-3.0/full.html), [CSS minifiers comparison](http://www.phpied.com/css-minifiers-comparison/) and [CleanCSS tests](http://goalsmashers.github.io/css-minification-benchmark/). From the last link, this CSS minifier is almost without doubt the fastest and has near-perfect minification rates. It falls short with the purposely not implemented and often unsafe techniques, so that's fine.
Options:
- `Decimals` number of decimals to preserve for numbers, `-1` means no trimming
## JS
The JS minifier is pretty basic. It removes comments, whitespace and line breaks whenever it can. It employs all the rules that [JSMin](http://www.crockford.com/javascript/jsmin.html) does too, but has additional improvements. For example the prefix-postfix bug is fixed.
Common speeds of PHP and JS implementations are about 100-300kB/s (see [Uglify2](http://lisperator.net/uglifyjs/), [Adventures in PHP web asset minimization](https://www.happyassassin.net/2014/12/29/adventures-in-php-web-asset-minimization/)). This implementation or orders of magnitude faster, around ~50MB/s.
TODO:
- shorten local variables / function parameters names
- precise semicolon and newline omission
## JSON
Minification typically shaves off about 15% of filesize for common indented JSON such as generated by [JSON Generator](http://www.json-generator.com/).
The JSON minifier only removes whitespace, which is the only thing that can be left out.
## SVG
The SVG minifier uses these minifications:
- trim and collapse whitespace between all tags
- strip comments, empty `doctype`, XML prelude, `metadata`
- strip SVG version
- strip CDATA sections wherever possible
- collapse tags with no content to a void tag
- collapse empty container tags (`g`, `svg`, ...)
- minify style tag and attributes with the CSS minifier
- minify colors
- shorten lengths and numbers and remove default `px` unit
- shorten `path` data
- convert `rect`, `line`, `polygon`, `polyline` to `path`
- use relative or absolute positions in path data whichever is shorter
TODO:
- convert attributes to style attribute whenever shorter
- merge path data? (same style and no intersection -- the latter is difficult)
Options:
- `Decimals` number of decimals to preserve for numbers, `-1` means no trimming
## XML
The XML minifier uses these minifications:
- strip unnecessary whitespace and otherwise collapse it to one space (or newline if it originally contained a newline)
- strip comments
- collapse tags with no content to a void tag
- strip CDATA sections wherever possible
Options:
- `KeepWhitespace` preserve whitespace between inline tags but still collapse multiple whitespace characters into one
## Usage
Any input stream is being buffered by the minification functions. This is how the underlying buffer package inherently works to ensure high performance. The output stream however is not buffered. It is wise to preallocate a buffer as big as the input to which the output is written, or otherwise use `bufio` to buffer to a streaming writer.
### New
Retrieve a minifier struct which holds a map of mediatype &#8594; minifier functions.
``` go
m := minify.New()
```
The following loads all provided minifiers.
``` go
m := minify.New()
m.AddFunc("text/css", css.Minify)
m.AddFunc("text/html", html.Minify)
m.AddFunc("text/javascript", js.Minify)
m.AddFunc("image/svg+xml", svg.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]json$"), json.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]xml$"), xml.Minify)
```
You can set options to several minifiers.
``` go
m.Add("text/html", &html.Minifier{
KeepDefaultAttrVals: true,
KeepWhitespace: true,
})
```
### From reader
Minify from an `io.Reader` to an `io.Writer` for a specific mediatype.
``` go
if err := m.Minify(mediatype, w, r); err != nil {
panic(err)
}
```
### From bytes
Minify from and to a `[]byte` for a specific mediatype.
``` go
b, err = m.Bytes(mediatype, b)
if err != nil {
panic(err)
}
```
### From string
Minify from and to a `string` for a specific mediatype.
``` go
s, err = m.String(mediatype, s)
if err != nil {
panic(err)
}
```
### To reader
Get a minifying reader for a specific mediatype.
``` go
mr := m.Reader(mediatype, r)
if _, err := mr.Read(b); err != nil {
panic(err)
}
```
### To writer
Get a minifying writer for a specific mediatype. Must be explicitly closed because it uses an `io.Pipe` underneath.
``` go
mw := m.Writer(mediatype, w)
if mw.Write([]byte("input")); err != nil {
panic(err)
}
if err := mw.Close(); err != nil {
panic(err)
}
```
### Middleware
Minify resources on the fly using middleware. It passes a wrapped response writer to the handler that removes the Content-Length header. The minifier is chosen based on the Content-Type header or, if the header is empty, by the request URI file extension. This is on-the-fly processing, you should preferably cache the results though!
``` go
fs := http.FileServer(http.Dir("www/"))
http.Handle("/", m.Middleware(fs))
```
### Custom minifier
Add a minifier for a specific mimetype.
``` go
type CustomMinifier struct {
KeepLineBreaks bool
}
func (c *CustomMinifier) Minify(m *minify.M, w io.Writer, r io.Reader, params map[string]string) error {
// ...
return nil
}
m.Add(mimetype, &CustomMinifier{KeepLineBreaks: true})
// or
m.AddRegexp(regexp.MustCompile("/x-custom$"), &CustomMinifier{KeepLineBreaks: true})
```
Add a minify function for a specific mimetype.
``` go
m.AddFunc(mimetype, func(m *minify.M, w io.Writer, r io.Reader, params map[string]string) error {
// ...
return nil
})
m.AddFuncRegexp(regexp.MustCompile("/x-custom$"), func(m *minify.M, w io.Writer, r io.Reader, params map[string]string) error {
// ...
return nil
})
```
Add a command `cmd` with arguments `args` for a specific mimetype.
``` go
m.AddCmd(mimetype, exec.Command(cmd, args...))
m.AddCmdRegexp(regexp.MustCompile("/x-custom$"), exec.Command(cmd, args...))
```
### Mediatypes
Using the `params map[string]string` argument one can pass parameters to the minifier such as seen in mediatypes (`type/subtype; key1=val2; key2=val2`). Examples are the encoding or charset of the data. Calling `Minify` will split the mimetype and parameters for the minifiers for you, but `MinifyMimetype` can be used if you already have them split up.
Minifiers can also be added using a regular expression. For example a minifier with `image/.*` will match any image mime.
## Examples
### Common minifiers
Basic example that minifies from stdin to stdout and loads the default HTML, CSS and JS minifiers. Optionally, one can enable `java -jar build/compiler.jar` to run for JS (for example the [ClosureCompiler](https://code.google.com/p/closure-compiler/)). Note that reading the file into a buffer first and writing to a pre-allocated buffer would be faster (but would disable streaming).
``` go
package main
import (
"log"
"os"
"os/exec"
"github.com/tdewolff/minify"
"github.com/tdewolff/minify/css"
"github.com/tdewolff/minify/html"
"github.com/tdewolff/minify/js"
"github.com/tdewolff/minify/json"
"github.com/tdewolff/minify/svg"
"github.com/tdewolff/minify/xml"
)
func main() {
m := minify.New()
m.AddFunc("text/css", css.Minify)
m.AddFunc("text/html", html.Minify)
m.AddFunc("text/javascript", js.Minify)
m.AddFunc("image/svg+xml", svg.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]json$"), json.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]xml$"), xml.Minify)
// Or use the following for better minification of JS but lower speed:
// m.AddCmd("text/javascript", exec.Command("java", "-jar", "build/compiler.jar"))
if err := m.Minify("text/html", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}
```
### <a name="custom-minifier-example"></a> Custom minifier
Custom minifier showing an example that implements the minifier function interface. Within a custom minifier, it is possible to call any minifier function (through `m minify.Minifier`) recursively when dealing with embedded resources.
``` go
package main
import (
"bufio"
"fmt"
"io"
"log"
"strings"
"github.com/tdewolff/minify"
)
func main() {
m := minify.New()
m.AddFunc("text/plain", func(m *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
// remove newlines and spaces
rb := bufio.NewReader(r)
for {
line, err := rb.ReadString('\n')
if err != nil && err != io.EOF {
return err
}
if _, errws := io.WriteString(w, strings.Replace(line, " ", "", -1)); errws != nil {
return errws
}
if err == io.EOF {
break
}
}
return nil
})
in := "Because my coffee was too cold, I heated it in the microwave."
out, err := m.String("text/plain", in)
if err != nil {
panic(err)
}
fmt.Println(out)
// Output: Becausemycoffeewastoocold,Iheateditinthemicrowave.
}
```
### ResponseWriter
#### Middleware
``` go
func main() {
m := minify.New()
m.AddFunc("text/css", css.Minify)
m.AddFunc("text/html", html.Minify)
m.AddFunc("text/javascript", js.Minify)
m.AddFunc("image/svg+xml", svg.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]json$"), json.Minify)
m.AddFuncRegexp(regexp.MustCompile("[/+]xml$"), xml.Minify)
fs := http.FileServer(http.Dir("www/"))
http.Handle("/", m.Middleware(fs))
}
```
#### ResponseWriter
``` go
func Serve(w http.ResponseWriter, r *http.Request) {
mw := m.ResponseWriter(w, r)
defer mw.Close()
w = mw
http.ServeFile(w, r, path.Join("www", r.URL.Path))
}
```
#### Custom response writer
ResponseWriter example which returns a ResponseWriter that minifies the content and then writes to the original ResponseWriter. Any write after applying this filter will be minified.
``` go
type MinifyResponseWriter struct {
http.ResponseWriter
io.WriteCloser
}
func (m MinifyResponseWriter) Write(b []byte) (int, error) {
return m.WriteCloser.Write(b)
}
// MinifyResponseWriter must be closed explicitly by calling site.
func MinifyFilter(mediatype string, res http.ResponseWriter) MinifyResponseWriter {
m := minify.New()
// add minfiers
mw := m.Writer(mediatype, res)
return MinifyResponseWriter{res, mw}
}
```
``` go
// Usage
func(w http.ResponseWriter, req *http.Request) {
w = MinifyFilter("text/html", w)
if _, err := io.WriteString(w, "<p class="message"> This HTTP response will be minified. </p>"); err != nil {
panic(err)
}
if err := w.Close(); err != nil {
panic(err)
}
// Output: <p class=message>This HTTP response will be minified.
}
```
### Templates
Here's an example of a replacement for `template.ParseFiles` from `template/html`, which automatically minifies each template before parsing it.
Be aware that minifying templates will work in most cases but not all. Because the HTML minifier only works for valid HTML5, your template must be valid HTML5 of itself. Template tags are parsed as regular text by the minifier.
``` go
func compileTemplates(filenames ...string) (*template.Template, error) {
m := minify.New()
m.AddFunc("text/html", html.Minify)
var tmpl *template.Template
for _, filename := range filenames {
name := filepath.Base(filename)
if tmpl == nil {
tmpl = template.New(name)
} else {
tmpl = tmpl.New(name)
}
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
mb, err := m.Bytes("text/html", b)
if err != nil {
return nil, err
}
tmpl.Parse(string(mb))
}
return tmpl, nil
}
```
Example usage:
``` go
templates := template.MustCompile(compileTemplates("view.html", "home.html"))
```
## License
Released under the [MIT license](LICENSE.md).
[1]: http://golang.org/ "Go Language"

151
vendor/github.com/tdewolff/minify/common.go generated vendored
View file

@ -12,8 +12,8 @@ import (
// Epsilon is the closest number to zero that is not considered to be zero.
var Epsilon = 0.00001
// ContentType minifies a given mediatype by removing all whitespace.
func ContentType(b []byte) []byte {
// Mediatype minifies a given mediatype by removing all whitespace.
func Mediatype(b []byte) []byte {
j := 0
start := 0
inString := false
@ -79,6 +79,107 @@ func DataURI(m *M, dataURI []byte) []byte {
const MaxInt = int(^uint(0) >> 1)
const MinInt = -MaxInt - 1
// Decimal minifies a given byte slice containing a number (see parse.Number) and removes superfluous characters.
// It does not parse or output exponents.
func Decimal(num []byte, prec int) []byte {
// omit first + and register mantissa start and end, whether it's negative and the exponent
neg := false
start := 0
dot := -1
end := len(num)
if 0 < end && (num[0] == '+' || num[0] == '-') {
if num[0] == '-' {
neg = true
}
start++
}
for i, c := range num[start:] {
if c == '.' {
dot = start + i
break
}
}
if dot == -1 {
dot = end
}
// trim leading zeros but leave at least one digit
for start < end-1 && num[start] == '0' {
start++
}
// trim trailing zeros
i := end - 1
for ; i > dot; i-- {
if num[i] != '0' {
end = i + 1
break
}
}
if i == dot {
end = dot
if start == end {
num[start] = '0'
return num[start : start+1]
}
} else if start == end-1 && num[start] == '0' {
return num[start:end]
}
// apply precision
if prec > -1 && dot+1+prec < end {
end = dot + 1 + prec
inc := num[end] >= '5'
if inc || num[end-1] == '0' {
for i := end - 1; i > start; i-- {
if i == dot {
end--
} else if inc {
if num[i] == '9' {
if i > dot {
end--
} else {
num[i] = '0'
}
} else {
num[i]++
inc = false
break
}
} else if i > dot && num[i] == '0' {
end--
}
}
}
if dot == start && end == start+1 {
if inc {
num[start] = '1'
} else {
num[start] = '0'
}
} else {
if dot+1 == end {
end--
}
if inc {
if num[start] == '9' {
num[start] = '0'
copy(num[start+1:], num[start:end])
end++
num[start] = '1'
} else {
num[start]++
}
}
}
}
if neg {
start--
num[start] = '-'
}
return num[start:end]
}
// Number minifies a given byte slice containing a number (see parse.Number) and removes superfluous characters.
func Number(num []byte, prec int) []byte {
// omit first + and register mantissa start and end, whether it's negative and the exponent
@ -311,24 +412,46 @@ func Number(num []byte, prec int) []byte {
}
} else {
// case 3
if dot < end {
if dot == start {
copy(num[start:], num[end-n:end])
end = start + n
} else {
copy(num[dot:], num[dot+1:end])
end--
// find new end, considering moving numbers to the front, removing the dot and increasing the length of the exponent
newEnd := end
if dot == start {
newEnd = start + n
} else {
newEnd--
}
newEnd += 2 + lenIntExp
exp := intExp
lenExp := lenIntExp
if newEnd < len(num) {
// it saves space to convert the decimal to an integer and decrease the exponent
if dot < end {
if dot == start {
copy(num[start:], num[end-n:end])
end = start + n
} else {
copy(num[dot:], num[dot+1:end])
end--
}
}
} else {
// it does not save space and will panic, so we revert to the original representation
exp = origExp
lenExp = 1
if origExp <= -10 || origExp >= 10 {
lenExp = strconv.LenInt(int64(origExp))
}
}
num[end] = 'e'
num[end+1] = '-'
end += 2
intExp = -intExp
for i := end + lenIntExp - 1; i >= end; i-- {
num[i] = byte(intExp%10) + '0'
intExp /= 10
exp = -exp
for i := end + lenExp - 1; i >= end; i-- {
num[i] = byte(exp%10) + '0'
exp /= 10
}
end += lenIntExp
end += lenExp
}
if neg {

528
vendor/github.com/tdewolff/minify/css/css.go generated vendored
View file

@ -4,6 +4,7 @@ package css // import "github.com/tdewolff/minify/css"
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"strconv"
@ -29,16 +30,19 @@ type cssMinifier struct {
w io.Writer
p *css.Parser
o *Minifier
valuesBuffer []Token
}
////////////////////////////////////////////////////////////////
// DefaultMinifier is the default minifier.
var DefaultMinifier = &Minifier{Decimals: -1}
var DefaultMinifier = &Minifier{Decimals: -1, KeepCSS2: false}
// Minifier is a CSS minifier.
type Minifier struct {
Decimals int
KeepCSS2 bool
}
// Minify minifies CSS data, it reads from r and writes to w.
@ -108,7 +112,19 @@ func (c *cssMinifier) minifyGrammar() error {
if _, err := c.w.Write(data); err != nil {
return err
}
for _, val := range c.p.Values() {
values := c.p.Values()
if css.ToHash(data[1:]) == css.Import && len(values) == 2 && values[1].TokenType == css.URLToken {
url := values[1].Data
if url[4] != '"' && url[4] != '\'' {
url = url[3:]
url[0] = '"'
url[len(url)-1] = '"'
} else {
url = url[4 : len(url)-1]
}
values[1].Data = url
}
for _, val := range values {
if _, err := c.w.Write(val.Data); err != nil {
return err
}
@ -216,138 +232,238 @@ func (c *cssMinifier) minifySelectors(property []byte, values []css.Token) error
return nil
}
func (c *cssMinifier) minifyDeclaration(property []byte, values []css.Token) error {
if len(values) == 0 {
type Token struct {
css.TokenType
Data []byte
Components []css.Token // only filled for functions
}
func (t Token) String() string {
if len(t.Components) == 0 {
return t.TokenType.String() + "(" + string(t.Data) + ")"
} else {
return fmt.Sprint(t.Components)
}
}
func (c *cssMinifier) minifyDeclaration(property []byte, components []css.Token) error {
if len(components) == 0 {
return nil
}
prop := css.ToHash(property)
inProgid := false
for i, value := range values {
if inProgid {
if value.TokenType == css.FunctionToken {
inProgid = false
}
continue
} else if value.TokenType == css.IdentToken && css.ToHash(value.Data) == css.Progid {
inProgid = true
continue
}
value.TokenType, value.Data = c.shortenToken(prop, value.TokenType, value.Data)
if prop == css.Font || prop == css.Font_Family || prop == css.Font_Weight {
if value.TokenType == css.IdentToken && (prop == css.Font || prop == css.Font_Weight) {
val := css.ToHash(value.Data)
if val == css.Normal && prop == css.Font_Weight {
// normal could also be specified for font-variant, not just font-weight
value.TokenType = css.NumberToken
value.Data = []byte("400")
} else if val == css.Bold {
value.TokenType = css.NumberToken
value.Data = []byte("700")
}
} else if value.TokenType == css.StringToken && (prop == css.Font || prop == css.Font_Family) && len(value.Data) > 2 {
unquote := true
parse.ToLower(value.Data)
s := value.Data[1 : len(value.Data)-1]
if len(s) > 0 {
for _, split := range bytes.Split(s, spaceBytes) {
val := css.ToHash(split)
// if len is zero, it contains two consecutive spaces
if val == css.Inherit || val == css.Serif || val == css.Sans_Serif || val == css.Monospace || val == css.Fantasy || val == css.Cursive || val == css.Initial || val == css.Default ||
len(split) == 0 || !css.IsIdent(split) {
unquote = false
break
}
}
}
if unquote {
value.Data = s
}
}
} else if prop == css.Outline || prop == css.Border || prop == css.Border_Bottom || prop == css.Border_Left || prop == css.Border_Right || prop == css.Border_Top {
if css.ToHash(value.Data) == css.None {
value.TokenType = css.NumberToken
value.Data = zeroBytes
}
}
values[i].TokenType, values[i].Data = value.TokenType, value.Data
}
prop := css.ToHash(property)
// Strip !important from the component list, this will be added later separately
important := false
if len(values) > 2 && values[len(values)-2].TokenType == css.DelimToken && values[len(values)-2].Data[0] == '!' && css.ToHash(values[len(values)-1].Data) == css.Important {
values = values[:len(values)-2]
if len(components) > 2 && components[len(components)-2].TokenType == css.DelimToken && components[len(components)-2].Data[0] == '!' && css.ToHash(components[len(components)-1].Data) == css.Important {
components = components[:len(components)-2]
important = true
}
if len(values) == 1 {
if prop == css.Background && css.ToHash(values[0].Data) == css.None {
values[0].Data = backgroundNoneBytes
} else if bytes.Equal(property, msfilterBytes) {
alpha := []byte("progid:DXImageTransform.Microsoft.Alpha(Opacity=")
if values[0].TokenType == css.StringToken && bytes.HasPrefix(values[0].Data[1:len(values[0].Data)-1], alpha) {
values[0].Data = append(append([]byte{values[0].Data[0]}, []byte("alpha(opacity=")...), values[0].Data[1+len(alpha):]...)
// Check if this is a simple list of values separated by whitespace or commas, otherwise we'll not be processing
simple := true
prevSep := true
values := c.valuesBuffer[:0]
for i := 0; i < len(components); i++ {
comp := components[i]
if comp.TokenType == css.LeftParenthesisToken || comp.TokenType == css.LeftBraceToken || comp.TokenType == css.LeftBracketToken || comp.TokenType == css.RightParenthesisToken || comp.TokenType == css.RightBraceToken || comp.TokenType == css.RightBracketToken {
simple = false
break
}
if !prevSep && comp.TokenType != css.WhitespaceToken && comp.TokenType != css.CommaToken {
simple = false
break
}
if comp.TokenType == css.WhitespaceToken || comp.TokenType == css.CommaToken {
prevSep = true
if comp.TokenType == css.CommaToken {
values = append(values, Token{components[i].TokenType, components[i].Data, nil})
}
} else if comp.TokenType == css.FunctionToken {
prevSep = false
j := i + 1
level := 0
for ; j < len(components); j++ {
if components[j].TokenType == css.LeftParenthesisToken {
level++
} else if components[j].TokenType == css.RightParenthesisToken {
if level == 0 {
j++
break
}
level--
}
}
values = append(values, Token{components[i].TokenType, components[i].Data, components[i:j]})
i = j - 1
} else {
prevSep = false
values = append(values, Token{components[i].TokenType, components[i].Data, nil})
}
}
c.valuesBuffer = values
// Do not process complex values (eg. containing blocks or is not alternated between whitespace/commas and flat values
if !simple {
if prop == css.Filter && len(components) == 11 {
if bytes.Equal(components[0].Data, []byte("progid")) &&
components[1].TokenType == css.ColonToken &&
bytes.Equal(components[2].Data, []byte("DXImageTransform")) &&
components[3].Data[0] == '.' &&
bytes.Equal(components[4].Data, []byte("Microsoft")) &&
components[5].Data[0] == '.' &&
bytes.Equal(components[6].Data, []byte("Alpha(")) &&
bytes.Equal(parse.ToLower(components[7].Data), []byte("opacity")) &&
components[8].Data[0] == '=' &&
components[10].Data[0] == ')' {
components = components[6:]
components[0].Data = []byte("alpha(")
}
}
} else {
if prop == css.Margin || prop == css.Padding || prop == css.Border_Width {
if (values[0].TokenType == css.NumberToken || values[0].TokenType == css.DimensionToken || values[0].TokenType == css.PercentageToken) && (len(values)+1)%2 == 0 {
valid := true
for i := 1; i < len(values); i += 2 {
if values[i].TokenType != css.WhitespaceToken || values[i+1].TokenType != css.NumberToken && values[i+1].TokenType != css.DimensionToken && values[i+1].TokenType != css.PercentageToken {
valid = false
for _, component := range components {
if _, err := c.w.Write(component.Data); err != nil {
return err
}
}
if important {
if _, err := c.w.Write([]byte("!important")); err != nil {
return err
}
}
return nil
}
for i := range values {
values[i].TokenType, values[i].Data = c.shortenToken(prop, values[i].TokenType, values[i].Data)
}
if len(values) > 0 {
switch prop {
case css.Font, css.Font_Weight, css.Font_Family:
if prop == css.Font {
// in "font:" shorthand all values before the size have "normal"
// as valid and, at the same time, default value, so just skip them
for i, value := range values {
if !(value.TokenType == css.IdentToken && css.ToHash(value.Data) == css.Normal) {
values = values[i:]
break
}
}
if valid {
n := (len(values) + 1) / 2
if n == 2 {
if bytes.Equal(values[0].Data, values[2].Data) {
values = values[:1]
}
} else if n == 3 {
if bytes.Equal(values[0].Data, values[2].Data) && bytes.Equal(values[0].Data, values[4].Data) {
values = values[:1]
} else if bytes.Equal(values[0].Data, values[4].Data) {
values = values[:3]
}
} else if n == 4 {
if bytes.Equal(values[0].Data, values[2].Data) && bytes.Equal(values[0].Data, values[4].Data) && bytes.Equal(values[0].Data, values[6].Data) {
values = values[:1]
} else if bytes.Equal(values[0].Data, values[4].Data) && bytes.Equal(values[2].Data, values[6].Data) {
values = values[:3]
} else if bytes.Equal(values[2].Data, values[6].Data) {
values = values[:5]
}
for i, value := range values {
if value.TokenType == css.IdentToken {
val := css.ToHash(value.Data)
if prop == css.Font_Weight && val == css.Normal {
values[i].TokenType = css.NumberToken
values[i].Data = []byte("400")
} else if val == css.Bold {
values[i].TokenType = css.NumberToken
values[i].Data = []byte("700")
}
} else if value.TokenType == css.StringToken && len(value.Data) > 2 {
unquote := true
parse.ToLower(value.Data)
s := value.Data[1 : len(value.Data)-1]
if len(s) > 0 {
for _, split := range bytes.Split(s, spaceBytes) {
val := css.ToHash(split)
// if len is zero, it contains two consecutive spaces
if val == css.Inherit || val == css.Serif || val == css.Sans_Serif || val == css.Monospace || val == css.Fantasy || val == css.Cursive || val == css.Initial || val == css.Default ||
len(split) == 0 || !css.IsIdent(split) {
unquote = false
break
}
}
}
if unquote {
values[i].Data = s
}
}
}
} else if prop == css.Filter && len(values) == 11 {
if bytes.Equal(values[0].Data, []byte("progid")) &&
values[1].TokenType == css.ColonToken &&
bytes.Equal(values[2].Data, []byte("DXImageTransform")) &&
values[3].Data[0] == '.' &&
bytes.Equal(values[4].Data, []byte("Microsoft")) &&
values[5].Data[0] == '.' &&
bytes.Equal(values[6].Data, []byte("Alpha(")) &&
bytes.Equal(parse.ToLower(values[7].Data), []byte("opacity")) &&
values[8].Data[0] == '=' &&
values[10].Data[0] == ')' {
values = values[6:]
values[0].Data = []byte("alpha(")
case css.Margin, css.Padding, css.Border_Width:
n := len(values)
if n == 2 {
if bytes.Equal(values[0].Data, values[1].Data) {
values = values[:1]
}
} else if n == 3 {
if bytes.Equal(values[0].Data, values[1].Data) && bytes.Equal(values[0].Data, values[2].Data) {
values = values[:1]
} else if bytes.Equal(values[0].Data, values[2].Data) {
values = values[:2]
}
} else if n == 4 {
if bytes.Equal(values[0].Data, values[1].Data) && bytes.Equal(values[0].Data, values[2].Data) && bytes.Equal(values[0].Data, values[3].Data) {
values = values[:1]
} else if bytes.Equal(values[0].Data, values[2].Data) && bytes.Equal(values[1].Data, values[3].Data) {
values = values[:2]
} else if bytes.Equal(values[1].Data, values[3].Data) {
values = values[:3]
}
}
case css.Outline, css.Border, css.Border_Bottom, css.Border_Left, css.Border_Right, css.Border_Top:
none := false
iZero := -1
for i, value := range values {
if len(value.Data) == 1 && value.Data[0] == '0' {
iZero = i
} else if css.ToHash(value.Data) == css.None {
values[i].TokenType = css.NumberToken
values[i].Data = zeroBytes
none = true
}
}
if none && iZero != -1 {
values = append(values[:iZero], values[iZero+1:]...)
}
case css.Background:
ident := css.ToHash(values[0].Data)
if len(values) == 1 && (ident == css.None || ident == css.Transparent) {
values[0].Data = backgroundNoneBytes
}
case css.Box_Shadow:
if len(values) == 4 && len(values[0].Data) == 1 && values[0].Data[0] == '0' && len(values[1].Data) == 1 && values[1].Data[0] == '0' && len(values[2].Data) == 1 && values[2].Data[0] == '0' && len(values[3].Data) == 1 && values[3].Data[0] == '0' {
values = values[:2]
}
default:
if bytes.Equal(property, msfilterBytes) {
alpha := []byte("progid:DXImageTransform.Microsoft.Alpha(Opacity=")
if values[0].TokenType == css.StringToken && bytes.HasPrefix(values[0].Data[1:len(values[0].Data)-1], alpha) {
values[0].Data = append(append([]byte{values[0].Data[0]}, []byte("alpha(opacity=")...), values[0].Data[1+len(alpha):]...)
}
}
}
}
for i := 0; i < len(values); i++ {
if values[i].TokenType == css.FunctionToken {
n, err := c.minifyFunction(values[i:])
prevComma := true
for _, value := range values {
if !prevComma && value.TokenType != css.CommaToken {
if _, err := c.w.Write([]byte(" ")); err != nil {
return err
}
}
if value.TokenType == css.FunctionToken {
err := c.minifyFunction(value.Components)
if err != nil {
return err
}
i += n - 1
} else if _, err := c.w.Write(values[i].Data); err != nil {
return err
} else {
if _, err := c.w.Write(value.Data); err != nil {
return err
}
}
if value.TokenType == css.CommaToken {
prevComma = true
} else {
prevComma = false
}
}
if important {
if _, err := c.w.Write([]byte("!important")); err != nil {
return err
@ -356,104 +472,76 @@ func (c *cssMinifier) minifyDeclaration(property []byte, values []css.Token) err
return nil
}
func (c *cssMinifier) minifyFunction(values []css.Token) (int, error) {
n := 1
simple := true
for i, value := range values[1:] {
if value.TokenType == css.RightParenthesisToken {
n++
break
}
if i%2 == 0 && (value.TokenType != css.NumberToken && value.TokenType != css.PercentageToken) || (i%2 == 1 && value.TokenType != css.CommaToken) {
simple = false
}
n++
}
values = values[:n]
if simple && (n-1)%2 == 0 {
fun := css.ToHash(values[0].Data[:len(values[0].Data)-1])
nArgs := (n - 1) / 2
if (fun == css.Rgba || fun == css.Hsla) && nArgs == 4 {
d, _ := strconv.ParseFloat(string(values[7].Data), 32) // can never fail because if simple == true than this is a NumberToken or PercentageToken
if d-1.0 > -minify.Epsilon {
if fun == css.Rgba {
values[0].Data = []byte("rgb(")
fun = css.Rgb
} else {
values[0].Data = []byte("hsl(")
fun = css.Hsl
}
values = values[:len(values)-2]
values[len(values)-1].Data = []byte(")")
nArgs = 3
} else if d < minify.Epsilon {
values[0].Data = []byte("transparent")
values = values[:1]
fun = 0
nArgs = 0
func (c *cssMinifier) minifyFunction(values []css.Token) error {
n := len(values)
if n > 2 {
simple := true
for i, value := range values[1 : n-1] {
if i%2 == 0 && (value.TokenType != css.NumberToken && value.TokenType != css.PercentageToken) || (i%2 == 1 && value.TokenType != css.CommaToken) {
simple = false
}
}
if fun == css.Rgb && nArgs == 3 {
var err [3]error
rgb := [3]byte{}
for j := 0; j < 3; j++ {
val := values[j*2+1]
if val.TokenType == css.NumberToken {
var d int64
d, err[j] = strconv.ParseInt(string(val.Data), 10, 32)
if d < 0 {
d = 0
} else if d > 255 {
d = 255
if simple && n%2 == 1 {
fun := css.ToHash(values[0].Data[0 : len(values[0].Data)-1])
for i := 1; i < n; i += 2 {
values[i].TokenType, values[i].Data = c.shortenToken(0, values[i].TokenType, values[i].Data)
}
nArgs := (n - 1) / 2
if (fun == css.Rgba || fun == css.Hsla) && nArgs == 4 {
d, _ := strconv.ParseFloat(string(values[7].Data), 32) // can never fail because if simple == true than this is a NumberToken or PercentageToken
if d-1.0 > -minify.Epsilon {
if fun == css.Rgba {
values[0].Data = []byte("rgb(")
fun = css.Rgb
} else {
values[0].Data = []byte("hsl(")
fun = css.Hsl
}
rgb[j] = byte(d)
} else if val.TokenType == css.PercentageToken {
var d float64
d, err[j] = strconv.ParseFloat(string(val.Data[:len(val.Data)-1]), 32)
if d < 0.0 {
d = 0.0
} else if d > 100.0 {
d = 100.0
}
rgb[j] = byte((d / 100.0 * 255.0) + 0.5)
values = values[:len(values)-2]
values[len(values)-1].Data = []byte(")")
nArgs = 3
} else if d < minify.Epsilon {
values[0].Data = []byte("transparent")
values = values[:1]
fun = 0
nArgs = 0
}
}
if err[0] == nil && err[1] == nil && err[2] == nil {
val := make([]byte, 7)
val[0] = '#'
hex.Encode(val[1:], rgb[:])
parse.ToLower(val)
if s, ok := ShortenColorHex[string(val)]; ok {
if _, err := c.w.Write(s); err != nil {
return 0, err
}
} else {
if len(val) == 7 && val[1] == val[2] && val[3] == val[4] && val[5] == val[6] {
val[2] = val[3]
val[3] = val[5]
val = val[:4]
}
if _, err := c.w.Write(val); err != nil {
return 0, err
if fun == css.Rgb && nArgs == 3 {
var err [3]error
rgb := [3]byte{}
for j := 0; j < 3; j++ {
val := values[j*2+1]
if val.TokenType == css.NumberToken {
var d int64
d, err[j] = strconv.ParseInt(string(val.Data), 10, 32)
if d < 0 {
d = 0
} else if d > 255 {
d = 255
}
rgb[j] = byte(d)
} else if val.TokenType == css.PercentageToken {
var d float64
d, err[j] = strconv.ParseFloat(string(val.Data[:len(val.Data)-1]), 32)
if d < 0.0 {
d = 0.0
} else if d > 100.0 {
d = 100.0
}
rgb[j] = byte((d / 100.0 * 255.0) + 0.5)
}
}
return n, nil
}
} else if fun == css.Hsl && nArgs == 3 {
if values[1].TokenType == css.NumberToken && values[3].TokenType == css.PercentageToken && values[5].TokenType == css.PercentageToken {
h, err1 := strconv.ParseFloat(string(values[1].Data), 32)
s, err2 := strconv.ParseFloat(string(values[3].Data[:len(values[3].Data)-1]), 32)
l, err3 := strconv.ParseFloat(string(values[5].Data[:len(values[5].Data)-1]), 32)
if err1 == nil && err2 == nil && err3 == nil {
r, g, b := css.HSL2RGB(h/360.0, s/100.0, l/100.0)
rgb := []byte{byte((r * 255.0) + 0.5), byte((g * 255.0) + 0.5), byte((b * 255.0) + 0.5)}
if err[0] == nil && err[1] == nil && err[2] == nil {
val := make([]byte, 7)
val[0] = '#'
hex.Encode(val[1:], rgb[:])
parse.ToLower(val)
if s, ok := ShortenColorHex[string(val)]; ok {
if _, err := c.w.Write(s); err != nil {
return 0, err
return err
}
} else {
if len(val) == 7 && val[1] == val[2] && val[3] == val[4] && val[5] == val[6] {
@ -462,20 +550,50 @@ func (c *cssMinifier) minifyFunction(values []css.Token) (int, error) {
val = val[:4]
}
if _, err := c.w.Write(val); err != nil {
return 0, err
return err
}
}
return n, nil
return nil
}
} else if fun == css.Hsl && nArgs == 3 {
if values[1].TokenType == css.NumberToken && values[3].TokenType == css.PercentageToken && values[5].TokenType == css.PercentageToken {
h, err1 := strconv.ParseFloat(string(values[1].Data), 32)
s, err2 := strconv.ParseFloat(string(values[3].Data[:len(values[3].Data)-1]), 32)
l, err3 := strconv.ParseFloat(string(values[5].Data[:len(values[5].Data)-1]), 32)
if err1 == nil && err2 == nil && err3 == nil {
r, g, b := css.HSL2RGB(h/360.0, s/100.0, l/100.0)
rgb := []byte{byte((r * 255.0) + 0.5), byte((g * 255.0) + 0.5), byte((b * 255.0) + 0.5)}
val := make([]byte, 7)
val[0] = '#'
hex.Encode(val[1:], rgb[:])
parse.ToLower(val)
if s, ok := ShortenColorHex[string(val)]; ok {
if _, err := c.w.Write(s); err != nil {
return err
}
} else {
if len(val) == 7 && val[1] == val[2] && val[3] == val[4] && val[5] == val[6] {
val[2] = val[3]
val[3] = val[5]
val = val[:4]
}
if _, err := c.w.Write(val); err != nil {
return err
}
}
return nil
}
}
}
}
}
for _, value := range values {
if _, err := c.w.Write(value.Data); err != nil {
return 0, err
return err
}
}
return n, nil
return nil
}
func (c *cssMinifier) shortenToken(prop css.Hash, tt css.TokenType, data []byte) (css.TokenType, []byte) {
@ -491,11 +609,15 @@ func (c *cssMinifier) shortenToken(prop css.Hash, tt css.TokenType, data []byte)
}
dim := data[n:]
parse.ToLower(dim)
data = minify.Number(data[:n], c.o.Decimals)
if tt == css.PercentageToken && (len(data) != 1 || data[0] != '0' || prop == css.Color) {
data = append(data, '%')
} else if tt == css.DimensionToken && (len(data) != 1 || data[0] != '0' || requiredDimension[string(dim)]) {
if !c.o.KeepCSS2 {
data = minify.Number(data[:n], c.o.Decimals)
} else {
data = minify.Decimal(data[:n], c.o.Decimals) // don't use exponents
}
if tt == css.DimensionToken && (len(data) != 1 || data[0] != '0' || !optionalZeroDimension[string(dim)] || prop == css.Flex) {
data = append(data, dim...)
} else if tt == css.PercentageToken {
data = append(data, '%') // TODO: drop percentage for properties that accept <percentage> and <length>
}
} else if tt == css.IdentToken {
//parse.ToLower(data) // TODO: not all identifiers are case-insensitive; all <custom-ident> properties are case-sensitive
@ -541,7 +663,7 @@ func (c *cssMinifier) shortenToken(prop css.Hash, tt css.TokenType, data []byte)
} else if tt == css.URLToken {
parse.ToLower(data[:3])
if len(data) > 10 {
uri := data[4 : len(data)-1]
uri := parse.TrimWhitespace(data[4 : len(data)-1])
delim := byte('"')
if uri[0] == '\'' || uri[0] == '"' {
delim = uri[0]

28
vendor/github.com/tdewolff/minify/css/table.go generated vendored
View file

@ -2,14 +2,26 @@ package css
import "github.com/tdewolff/parse/css"
var requiredDimension = map[string]bool{
"s": true,
"ms": true,
"dpi": true,
"dpcm": true,
"dppx": true,
"hz": true,
"khz": true,
var optionalZeroDimension = map[string]bool{
"px": true,
"mm": true,
"q": true,
"cm": true,
"in": true,
"pt": true,
"pc": true,
"ch": true,
"em": true,
"ex": true,
"rem": true,
"vh": true,
"vw": true,
"vmin": true,
"vmax": true,
"deg": true,
"grad": true,
"rad": true,
"turn": true,
}
// Uses http://www.w3.org/TR/2010/PR-css3-color-20101028/ for colors

10
vendor/github.com/tdewolff/minify/svg/pathdata.go generated vendored
View file

@ -33,6 +33,8 @@ func NewPathData(o *Minifier) *PathData {
}
}
// ShortenPathData takes a full pathdata string and returns a shortened version. The original string is overwritten.
// It parses all commands (M, A, Z, ...) and coordinates (numbers) and calls copyInstruction for each command.
func (p *PathData) ShortenPathData(b []byte) []byte {
var x0, y0 float64
var cmd byte
@ -74,6 +76,8 @@ func (p *PathData) ShortenPathData(b []byte) []byte {
return b[:j]
}
// copyInstruction copies pathdata of a single command, but may be comprised of multiple sets for that command. For example, L takes two coordinates, but this function may process 2*N coordinates. Lowercase commands are relative commands, where the coordinates are relative to the previous point. Uppercase commands have absolute coordinates.
// We update p.x and p.y (the current coordinates) according to the commands given. For each set of coordinates we call shortenCurPosInstruction and shortenAltPosInstruction. The former just minifies the coordinates, the latter will inverse the lowercase/uppercase of the command, and see if the coordinates get smaller due to that. The shortest is chosen and copied to `b`.
func (p *PathData) copyInstruction(b []byte, cmd byte) int {
n := len(p.coords)
if n == 0 {
@ -191,6 +195,7 @@ func (p *PathData) copyInstruction(b []byte, cmd byte) int {
return j
}
// shortenCurPosInstruction only minifies the coordinates.
func (p *PathData) shortenCurPosInstruction(cmd byte, coords [][]byte) PathDataState {
state := p.state
p.curBuffer = p.curBuffer[:0]
@ -202,7 +207,8 @@ func (p *PathData) shortenCurPosInstruction(cmd byte, coords [][]byte) PathDataS
}
for i, coord := range coords {
isFlag := false
if (cmd == 'A' || cmd == 'a') && (i%7 == 3 || i%7 == 4) {
// Arc has boolean flags that can only be 0 or 1. Setting isFlag prevents from adding a dot before a zero (instead of a space). However, when the dot already was there, the command is malformed and could make the path longer than before, introducing bugs.
if (cmd == 'A' || cmd == 'a') && (i%7 == 3 || i%7 == 4) && coord[0] != '.' {
isFlag = true
}
@ -212,6 +218,7 @@ func (p *PathData) shortenCurPosInstruction(cmd byte, coords [][]byte) PathDataS
return state
}
// shortenAltPosInstruction toggles the command between absolute / relative coordinates and minifies the coordinates.
func (p *PathData) shortenAltPosInstruction(cmd byte, coordFloats []float64, x, y float64) PathDataState {
state := p.state
p.altBuffer = p.altBuffer[:0]
@ -250,6 +257,7 @@ func (p *PathData) shortenAltPosInstruction(cmd byte, coordFloats []float64, x,
return state
}
// copyNumber will copy a number to the destination buffer, taking into account space or dot insertion to guarantee the shortest pathdata.
func (state *PathDataState) copyNumber(buffer *[]byte, coord []byte, isFlag bool) {
if state.prevDigit && (coord[0] >= '0' && coord[0] <= '9' || coord[0] == '.' && state.prevDigitIsInt) {
if coord[0] == '0' && !state.prevDigitIsInt {

35
vendor/github.com/tdewolff/minify/svg/svg.go generated vendored
View file

@ -51,7 +51,6 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
p := NewPathData(o)
minifyBuffer := buffer.NewWriter(make([]byte, 0, 64))
attrByteBuffer := make([]byte, 0, 64)
gStack := make([]bool, 0)
l := xml.NewLexer(r)
defer l.Restore()
@ -59,7 +58,6 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
tb := NewTokenBuffer(l)
for {
t := *tb.Shift()
SWITCH:
switch t.TokenType {
case xml.ErrorToken:
if l.Err() == io.EOF {
@ -113,29 +111,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
}
case xml.StartTagToken:
tag = t.Hash
if containerTagMap[tag] { // skip empty containers
i := 0
for {
next := tb.Peek(i)
i++
if next.TokenType == xml.EndTagToken && next.Hash == tag || next.TokenType == xml.StartTagCloseVoidToken || next.TokenType == xml.ErrorToken {
for j := 0; j < i; j++ {
tb.Shift()
}
break SWITCH
} else if next.TokenType != xml.AttributeToken && next.TokenType != xml.StartTagCloseToken {
break
}
}
if tag == svg.G {
if tb.Peek(0).TokenType == xml.StartTagCloseToken {
gStack = append(gStack, false)
tb.Shift()
break
}
gStack = append(gStack, true)
}
} else if tag == svg.Metadata {
if tag == svg.Metadata {
skipTag(tb, tag)
break
} else if tag == svg.Line {
@ -184,7 +160,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
}
if tag == svg.Svg && attr == svg.ContentStyleType {
val = minify.ContentType(val)
val = minify.Mediatype(val)
defaultStyleType = val
} else if attr == svg.Style {
minifyBuffer.Reset()
@ -266,13 +242,6 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
}
case xml.EndTagToken:
tag = 0
if t.Hash == svg.G && len(gStack) > 0 {
if !gStack[len(gStack)-1] {
gStack = gStack[:len(gStack)-1]
break
}
gStack = gStack[:len(gStack)-1]
}
if len(t.Data) > 3+len(t.Text) {
t.Data[2+len(t.Text)] = '>'
t.Data = t.Data[:3+len(t.Text)]

12
vendor/github.com/tdewolff/minify/svg/table.go generated vendored
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@ -2,18 +2,6 @@ package svg // import "github.com/tdewolff/minify/svg"
import "github.com/tdewolff/parse/svg"
var containerTagMap = map[svg.Hash]bool{
svg.A: true,
svg.Defs: true,
svg.G: true,
svg.Marker: true,
svg.Mask: true,
svg.Missing_Glyph: true,
svg.Pattern: true,
svg.Switch: true,
svg.Symbol: true,
}
var colorAttrMap = map[svg.Hash]bool{
svg.Color: true,
svg.Fill: true,

5
vendor/github.com/tdewolff/parse/.travis.yml generated vendored
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@ -1,5 +0,0 @@
language: go
before_install:
- go get github.com/mattn/goveralls
script:
- goveralls -v -service travis-ci -repotoken $COVERALLS_TOKEN || go test -v ./...

66
vendor/github.com/tdewolff/parse/README.md generated vendored
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@ -1,66 +0,0 @@
# Parse [![Build Status](https://travis-ci.org/tdewolff/parse.svg?branch=master)](https://travis-ci.org/tdewolff/parse) [![GoDoc](http://godoc.org/github.com/tdewolff/parse?status.svg)](http://godoc.org/github.com/tdewolff/parse) [![Coverage Status](https://coveralls.io/repos/github/tdewolff/parse/badge.svg?branch=master)](https://coveralls.io/github/tdewolff/parse?branch=master)
This package contains several lexers and parsers written in [Go][1]. All subpackages are built to be streaming, high performance and to be in accordance with the official (latest) specifications.
The lexers are implemented using `buffer.Lexer` in https://github.com/tdewolff/parse/buffer and the parsers work on top of the lexers. Some subpackages have hashes defined (using [Hasher](https://github.com/tdewolff/hasher)) that speed up common byte-slice comparisons.
## Buffer
### Reader
Reader is a wrapper around a `[]byte` that implements the `io.Reader` interface. It is a much thinner layer than `bytes.Buffer` provides and is therefore faster.
### Writer
Writer is a buffer that implements the `io.Writer` interface. It is a much thinner layer than `bytes.Buffer` provides and is therefore faster. It will expand the buffer when needed.
The reset functionality allows for better memory reuse. After calling `Reset`, it will overwrite the current buffer and thus reduce allocations.
### Lexer
Lexer is a read buffer specifically designed for building lexers. It keeps track of two positions: a start and end position. The start position is the beginning of the current token being parsed, the end position is being moved forward until a valid token is found. Calling `Shift` will collapse the positions to the end and return the parsed `[]byte`.
Moving the end position can go through `Move(int)` which also accepts negative integers. One can also use `Pos() int` to try and parse a token, and if it fails rewind with `Rewind(int)`, passing the previously saved position.
`Peek(int) byte` will peek forward (relative to the end position) and return the byte at that location. `PeekRune(int) (rune, int)` returns UTF-8 runes and its length at the given **byte** position. Upon an error `Peek` will return `0`, the **user must peek at every character** and not skip any, otherwise it may skip a `0` and panic on out-of-bounds indexing.
`Lexeme() []byte` will return the currently selected bytes, `Skip()` will collapse the selection. `Shift() []byte` is a combination of `Lexeme() []byte` and `Skip()`.
When the passed `io.Reader` returned an error, `Err() error` will return that error even if not at the end of the buffer.
### StreamLexer
StreamLexer behaves like Lexer but uses a buffer pool to read in chunks from `io.Reader`, retaining old buffers in memory that are still in use, and re-using old buffers otherwise. Calling `Free(n int)` frees up `n` bytes from the internal buffer(s). It holds an array of buffers to accommodate for keeping everything in-memory. Calling `ShiftLen() int` returns the number of bytes that have been shifted since the previous call to `ShiftLen`, which can be used to specify how many bytes need to be freed up from the buffer. If you don't need to keep returned byte slices around, call `Free(ShiftLen())` after every `Shift` call.
## Strconv
This package contains string conversion function much like the standard library's `strconv` package, but it is specifically tailored for the performance needs within the `minify` package.
For example, the floating-point to string conversion function is approximately twice as fast as the standard library, but it is not as precise.
## CSS
This package is a CSS3 lexer and parser. Both follow the specification at [CSS Syntax Module Level 3](http://www.w3.org/TR/css-syntax-3/). The lexer takes an io.Reader and converts it into tokens until the EOF. The parser returns a parse tree of the full io.Reader input stream, but the low-level `Next` function can be used for stream parsing to returns grammar units until the EOF.
[See README here](https://github.com/tdewolff/parse/tree/master/css).
## HTML
This package is an HTML5 lexer. It follows the specification at [The HTML syntax](http://www.w3.org/TR/html5/syntax.html). The lexer takes an io.Reader and converts it into tokens until the EOF.
[See README here](https://github.com/tdewolff/parse/tree/master/html).
## JS
This package is a JS lexer (ECMA-262, edition 6.0). It follows the specification at [ECMAScript Language Specification](http://www.ecma-international.org/ecma-262/6.0/). The lexer takes an io.Reader and converts it into tokens until the EOF.
[See README here](https://github.com/tdewolff/parse/tree/master/js).
## JSON
This package is a JSON parser (ECMA-404). It follows the specification at [JSON](http://json.org/). The parser takes an io.Reader and converts it into tokens until the EOF.
[See README here](https://github.com/tdewolff/parse/tree/master/json).
## SVG
This package contains common hashes for SVG1.1 tags and attributes.
## XML
This package is an XML1.0 lexer. It follows the specification at [Extensible Markup Language (XML) 1.0 (Fifth Edition)](http://www.w3.org/TR/xml/). The lexer takes an io.Reader and converts it into tokens until the EOF.
[See README here](https://github.com/tdewolff/parse/tree/master/xml).
## License
Released under the [MIT license](LICENSE.md).
[1]: http://golang.org/ "Go Language"

171
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@ -1,171 +0,0 @@
# CSS [![GoDoc](http://godoc.org/github.com/tdewolff/parse/css?status.svg)](http://godoc.org/github.com/tdewolff/parse/css) [![GoCover](http://gocover.io/_badge/github.com/tdewolff/parse/css)](http://gocover.io/github.com/tdewolff/parse/css)
This package is a CSS3 lexer and parser written in [Go][1]. Both follow the specification at [CSS Syntax Module Level 3](http://www.w3.org/TR/css-syntax-3/). The lexer takes an io.Reader and converts it into tokens until the EOF. The parser returns a parse tree of the full io.Reader input stream, but the low-level `Next` function can be used for stream parsing to returns grammar units until the EOF.
## Installation
Run the following command
go get github.com/tdewolff/parse/css
or add the following import and run project with `go get`
import "github.com/tdewolff/parse/css"
## Lexer
### Usage
The following initializes a new Lexer with io.Reader `r`:
``` go
l := css.NewLexer(r)
```
To tokenize until EOF an error, use:
``` go
for {
tt, text := l.Next()
switch tt {
case css.ErrorToken:
// error or EOF set in l.Err()
return
// ...
}
}
```
All tokens (see [CSS Syntax Module Level 3](http://www.w3.org/TR/css3-syntax/)):
``` go
ErrorToken // non-official token, returned when errors occur
IdentToken
FunctionToken // rgb( rgba( ...
AtKeywordToken // @abc
HashToken // #abc
StringToken
BadStringToken
UrlToken // url(
BadUrlToken
DelimToken // any unmatched character
NumberToken // 5
PercentageToken // 5%
DimensionToken // 5em
UnicodeRangeToken
IncludeMatchToken // ~=
DashMatchToken // |=
PrefixMatchToken // ^=
SuffixMatchToken // $=
SubstringMatchToken // *=
ColumnToken // ||
WhitespaceToken
CDOToken // <!--
CDCToken // -->
ColonToken
SemicolonToken
CommaToken
BracketToken // ( ) [ ] { }, all bracket tokens use this, Data() can distinguish between the brackets
CommentToken // non-official token
```
### Examples
``` go
package main
import (
"os"
"github.com/tdewolff/parse/css"
)
// Tokenize CSS3 from stdin.
func main() {
l := css.NewLexer(os.Stdin)
for {
tt, text := l.Next()
switch tt {
case css.ErrorToken:
if l.Err() != io.EOF {
fmt.Println("Error on line", l.Line(), ":", l.Err())
}
return
case css.IdentToken:
fmt.Println("Identifier", string(text))
case css.NumberToken:
fmt.Println("Number", string(text))
// ...
}
}
}
```
## Parser
### Usage
The following creates a new Parser.
``` go
// true because this is the content of an inline style attribute
p := css.NewParser(bytes.NewBufferString("color: red;"), true)
```
To iterate over the stylesheet, use:
``` go
for {
gt, _, data := p.Next()
if gt == css.ErrorGrammar {
break
}
// ...
}
```
All grammar units returned by `Next`:
``` go
ErrorGrammar
AtRuleGrammar
EndAtRuleGrammar
RulesetGrammar
EndRulesetGrammar
DeclarationGrammar
TokenGrammar
```
### Examples
``` go
package main
import (
"bytes"
"fmt"
"github.com/tdewolff/parse/css"
)
func main() {
// true because this is the content of an inline style attribute
p := css.NewParser(bytes.NewBufferString("color: red;"), true)
out := ""
for {
gt, _, data := p.Next()
if gt == css.ErrorGrammar {
break
} else if gt == css.AtRuleGrammar || gt == css.BeginAtRuleGrammar || gt == css.BeginRulesetGrammar || gt == css.DeclarationGrammar {
out += string(data)
if gt == css.DeclarationGrammar {
out += ":"
}
for _, val := range p.Values() {
out += string(val.Data)
}
if gt == css.BeginAtRuleGrammar || gt == css.BeginRulesetGrammar {
out += "{"
} else if gt == css.AtRuleGrammar || gt == css.DeclarationGrammar {
out += ";"
}
} else {
out += string(data)
}
}
fmt.Println(out)
}
```
## License
Released under the [MIT license](https://github.com/tdewolff/parse/blob/master/LICENSE.md).
[1]: http://golang.org/ "Go Language"

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vendor/github.com/tdewolff/parse/css/hash.go generated vendored
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4
vendor/github.com/tdewolff/parse/css/parse.go generated vendored
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@ -70,6 +70,10 @@ type Token struct {
Data []byte
}
func (t Token) String() string {
return t.TokenType.String() + "('" + string(t.Data) + "')"
}
// Parser is the state for the parser.
type Parser struct {
l *Lexer

7
vendor/github.com/tdewolff/parse/strconv/int.go generated vendored
View file

@ -1,6 +1,8 @@
package strconv // import "github.com/tdewolff/parse/strconv"
import "math"
import (
"math"
)
// Int parses a byte-slice and returns the integer it represents.
// If an invalid character is encountered, it will stop there.
@ -34,6 +36,9 @@ func ParseInt(b []byte) (int64, int) {
func LenInt(i int64) int {
if i < 0 {
if i == -9223372036854775808 {
return 19
}
i = -i
}
switch {

83
vendor/github.com/tdewolff/parse/strconv/price.go generated vendored Normal file
View file

@ -0,0 +1,83 @@
package strconv
// AppendPrice will append an int64 formatted as a price, where the int64 is the price in cents.
// It does not display whether a price is negative or not.
func AppendPrice(b []byte, price int64, dec bool, milSeparator byte, decSeparator byte) []byte {
if price < 0 {
if price == -9223372036854775808 {
x := []byte("92 233 720 368 547 758 08")
x[2] = milSeparator
x[6] = milSeparator
x[10] = milSeparator
x[14] = milSeparator
x[18] = milSeparator
x[22] = decSeparator
return append(b, x...)
}
price = -price
}
// rounding
if !dec {
firstDec := (price / 10) % 10
if firstDec >= 5 {
price += 100
}
}
// calculate size
n := LenInt(price) - 2
if n > 0 {
n += (n - 1) / 3 // mil separator
} else {
n = 1
}
if dec {
n += 2 + 1 // decimals + dec separator
}
// resize byte slice
i := len(b)
if i+n > cap(b) {
b = append(b, make([]byte, n)...)
} else {
b = b[:i+n]
}
// print fractional-part
i += n - 1
if dec {
for j := 0; j < 2; j++ {
c := byte(price%10) + '0'
price /= 10
b[i] = c
i--
}
b[i] = decSeparator
i--
} else {
price /= 100
}
if price == 0 {
b[i] = '0'
return b
}
// print integer-part
j := 0
for price > 0 {
if j == 3 {
b[i] = milSeparator
i--
j = 0
}
c := byte(price%10) + '0'
price /= 10
b[i] = c
i--
j++
}
return b
}

101
vendor/github.com/tdewolff/parse/xml/README.md generated vendored
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@ -1,101 +0,0 @@
# XML [![GoDoc](http://godoc.org/github.com/tdewolff/parse/xml?status.svg)](http://godoc.org/github.com/tdewolff/parse/xml) [![GoCover](http://gocover.io/_badge/github.com/tdewolff/parse/xml)](http://gocover.io/github.com/tdewolff/parse/xml)
This package is an XML lexer written in [Go][1]. It follows the specification at [Extensible Markup Language (XML) 1.0 (Fifth Edition)](http://www.w3.org/TR/REC-xml/). The lexer takes an io.Reader and converts it into tokens until the EOF.
## Installation
Run the following command
go get github.com/tdewolff/parse/xml
or add the following import and run project with `go get`
import "github.com/tdewolff/parse/xml"
## Lexer
### Usage
The following initializes a new Lexer with io.Reader `r`:
``` go
l := xml.NewLexer(r)
```
To tokenize until EOF an error, use:
``` go
for {
tt, data := l.Next()
switch tt {
case xml.ErrorToken:
// error or EOF set in l.Err()
return
case xml.StartTagToken:
// ...
for {
ttAttr, dataAttr := l.Next()
if ttAttr != xml.AttributeToken {
// handle StartTagCloseToken/StartTagCloseVoidToken/StartTagClosePIToken
break
}
// ...
}
case xml.EndTagToken:
// ...
}
}
```
All tokens:
``` go
ErrorToken TokenType = iota // extra token when errors occur
CommentToken
CDATAToken
StartTagToken
StartTagCloseToken
StartTagCloseVoidToken
StartTagClosePIToken
EndTagToken
AttributeToken
TextToken
```
### Examples
``` go
package main
import (
"os"
"github.com/tdewolff/parse/xml"
)
// Tokenize XML from stdin.
func main() {
l := xml.NewLexer(os.Stdin)
for {
tt, data := l.Next()
switch tt {
case xml.ErrorToken:
if l.Err() != io.EOF {
fmt.Println("Error on line", l.Line(), ":", l.Err())
}
return
case xml.StartTagToken:
fmt.Println("Tag", string(data))
for {
ttAttr, dataAttr := l.Next()
if ttAttr != xml.AttributeToken {
break
}
key := dataAttr
val := l.AttrVal()
fmt.Println("Attribute", string(key), "=", string(val))
}
// ...
}
}
}
```
## License
Released under the [MIT license](https://github.com/tdewolff/parse/blob/master/LICENSE.md).
[1]: http://golang.org/ "Go Language"

12
vendor/golang.org/x/image/font/font.go generated vendored
View file

@ -86,6 +86,18 @@ type Metrics struct {
// value is typically positive, even though a descender goes below the
// baseline.
Descent fixed.Int26_6
// XHeight is the distance from the top of non-ascending lowercase letters
// to the baseline.
XHeight fixed.Int26_6
// CapHeight is the distance from the top of uppercase letters to the
// baseline.
CapHeight fixed.Int26_6
// CaretSlope is the slope of a caret as a vector with the Y axis pointing up.
// The slope {0, 1} is the vertical caret.
CaretSlope image.Point
}
// Drawer draws text on a destination image.

23
vendor/gopkg.in/validator.v2/.gitignore generated vendored
View file

@ -1,23 +0,0 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test

10
vendor/gopkg.in/validator.v2/.travis.yml generated vendored
View file

@ -1,10 +0,0 @@
language: go
go:
- 1.5
- 1.6
- 1.7
go_import_path: gopkg.in/validator.v2
script:
- go test -race -v -bench=.
notifications:
email: false

188
vendor/gopkg.in/validator.v2/README.md generated vendored
View file

@ -1,188 +0,0 @@
Package validator
================
Package validator implements variable validations
Installation
============
Just use go get.
```bash
go get gopkg.in/validator.v2
```
And then just import the package into your own code.
```go
import (
"gopkg.in/validator.v2"
)
```
Usage
=====
Please see http://godoc.org/gopkg.in/validator.v2 for detailed usage docs.
A simple example would be.
```go
type NewUserRequest struct {
Username string `validate:"min=3,max=40,regexp=^[a-zA-Z]*$"`
Name string `validate:"nonzero"`
Age int `validate:"min=21"`
Password string `validate:"min=8"`
}
nur := NewUserRequest{Username: "something", Age: 20}
if errs := validator.Validate(nur); errs != nil {
// values not valid, deal with errors here
}
```
Builtin validators
Here is the list of validators buildin in the package. Validators buildin
will check the element pointed to if the value to check is a pointer.
The `nil` pointer is treated as a valid value by validators buildin other
than `nonzero`, so you should to use `nonzero` if you don't want to
accept a `nil` pointer.
```
len
For numeric numbers, len will simply make sure that the
value is equal to the parameter given. For strings, it
checks that the string length is exactly that number of
characters. For slices, arrays, and maps, validates the
number of items. (Usage: len=10)
max
For numeric numbers, max will simply make sure that the
value is lesser or equal to the parameter given. For strings,
it checks that the string length is at most that number of
characters. For slices, arrays, and maps, validates the
number of items. (Usage: max=10)
min
For numeric numbers, min will simply make sure that the value
is greater or equal to the parameter given. For strings, it
checks that the string length is at least that number of
characters. For slices, arrays, and maps, validates the
number of items. (Usage: min=10)
nonzero
This validates that the value is not zero. The appropriate
zero value is given by the Go spec (e.g. for int it's 0, for
string it's "", for pointers is nil, etc.) For structs, it
will not check to see if the struct itself has all zero
values, instead use a pointer or put nonzero on the struct's
keys that you care about. (Usage: nonzero)
regexp
Only valid for string types, it will validator that the
value matches the regular expression provided as parameter.
(Usage: regexp=^a.*b$)
```
Custom validators
It is possible to define custom validators by using SetValidationFunc.
First, one needs to create a validation function.
```go
// Very simple validator
func notZZ(v interface{}, param string) error {
st := reflect.ValueOf(v)
if st.Kind() != reflect.String {
return errors.New("notZZ only validates strings")
}
if st.String() == "ZZ" {
return errors.New("value cannot be ZZ")
}
return nil
}
```
Then one needs to add it to the list of validators and give it a "tag"
name.
```go
validator.SetValidationFunc("notzz", notZZ)
```
Then it is possible to use the notzz validation tag. This will print
"Field A error: value cannot be ZZ"
```go
type T struct {
A string `validate:"nonzero,notzz"`
}
t := T{"ZZ"}
if errs := validator.Validate(t); errs != nil {
fmt.Printf("Field A error: %s\n", errs["A"][0])
}
```
You can also have multiple sets of validator rules with SetTag().
```go
type T struct {
A int `foo:"nonzero" bar:"min=10"`
}
t := T{5}
SetTag("foo")
validator.Validate(t) // valid as it's nonzero
SetTag("bar")
validator.Validate(t) // invalid as it's less than 10
```
SetTag is probably better used with multiple validators.
```go
fooValidator := validator.NewValidator()
fooValidator.SetTag("foo")
barValidator := validator.NewValidator()
barValidator.SetTag("bar")
fooValidator.Validate(t)
barValidator.Validate(t)
```
This keeps the default validator's tag clean. Again, please refer to
godocs for a lot of more examples and different uses.
Pull requests policy
====================
tl;dr. Contributions are welcome.
The repository is organized in version branches. Pull requests to, say, the
`v2` branch that break API compatibility will not be accepted. It is okay to
break the API in master, *not in the branches*.
As for validation functions, the preference is to keep the main code simple
and add most new functions to the validator-contrib repository.
https://github.com/go-validator/validator-contrib
For improvements and/or fixes to the builtin validation functions, please
make sure the behaviour will not break existing functionality in the branches.
If you see a case where the functionality of the builtin will change
significantly, please send a pull request against `master`. We can discuss then
whether the changes should be incorporated in the version branches as well.
License
=======
Copyright 2014 Roberto Teixeira <robteix@robteix.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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@ -1,12 +0,0 @@
language: go
go:
- 1.4
- 1.5
- 1.6
- 1.7
- 1.8
- 1.9
- tip
go_import_path: gopkg.in/yaml.v2

133
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@ -1,133 +0,0 @@
# YAML support for the Go language
Introduction
------------
The yaml package enables Go programs to comfortably encode and decode YAML
values. It was developed within [Canonical](https://www.canonical.com) as
part of the [juju](https://juju.ubuntu.com) project, and is based on a
pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
C library to parse and generate YAML data quickly and reliably.
Compatibility
-------------
The yaml package supports most of YAML 1.1 and 1.2, including support for
anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
implemented, and base-60 floats from YAML 1.1 are purposefully not
supported since they're a poor design and are gone in YAML 1.2.
Installation and usage
----------------------
The import path for the package is *gopkg.in/yaml.v2*.
To install it, run:
go get gopkg.in/yaml.v2
API documentation
-----------------
If opened in a browser, the import path itself leads to the API documentation:
* [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
API stability
-------------
The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
License
-------
The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
Example
-------
```Go
package main
import (
"fmt"
"log"
"gopkg.in/yaml.v2"
)
var data = `
a: Easy!
b:
c: 2
d: [3, 4]
`
// Note: struct fields must be public in order for unmarshal to
// correctly populate the data.
type T struct {
A string
B struct {
RenamedC int `yaml:"c"`
D []int `yaml:",flow"`
}
}
func main() {
t := T{}
err := yaml.Unmarshal([]byte(data), &t)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- t:\n%v\n\n", t)
d, err := yaml.Marshal(&t)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- t dump:\n%s\n\n", string(d))
m := make(map[interface{}]interface{})
err = yaml.Unmarshal([]byte(data), &m)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- m:\n%v\n\n", m)
d, err = yaml.Marshal(&m)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- m dump:\n%s\n\n", string(d))
}
```
This example will generate the following output:
```
--- t:
{Easy! {2 [3 4]}}
--- t dump:
a: Easy!
b:
c: 2
d: [3, 4]
--- m:
map[a:Easy! b:map[c:2 d:[3 4]]]
--- m dump:
a: Easy!
b:
c: 2
d:
- 3
- 4
```

5
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@ -1,5 +0,0 @@
module "gopkg.in/yaml.v2"
require (
"gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405
)