mirror of
https://github.com/Luzifer/short_path.git
synced 2024-11-08 08:00:04 +00:00
Initial version
Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
commit
824f831458
9 changed files with 563 additions and 0 deletions
15
Gopkg.lock
generated
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15
Gopkg.lock
generated
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|
@ -0,0 +1,15 @@
|
|||
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
|
||||
|
||||
|
||||
[[projects]]
|
||||
branch = "master"
|
||||
name = "github.com/mitchellh/go-homedir"
|
||||
packages = ["."]
|
||||
revision = "b8bc1bf767474819792c23f32d8286a45736f1c6"
|
||||
|
||||
[solve-meta]
|
||||
analyzer-name = "dep"
|
||||
analyzer-version = 1
|
||||
inputs-digest = "d8c52b9f6dad2047268d41b6f614fe8ec953f88ded51c44edfe83fd339c1f42b"
|
||||
solver-name = "gps-cdcl"
|
||||
solver-version = 1
|
26
Gopkg.toml
Normal file
26
Gopkg.toml
Normal file
|
@ -0,0 +1,26 @@
|
|||
|
||||
# Gopkg.toml example
|
||||
#
|
||||
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
|
||||
# for detailed Gopkg.toml documentation.
|
||||
#
|
||||
# required = ["github.com/user/thing/cmd/thing"]
|
||||
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project"
|
||||
# version = "1.0.0"
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project2"
|
||||
# branch = "dev"
|
||||
# source = "github.com/myfork/project2"
|
||||
#
|
||||
# [[override]]
|
||||
# name = "github.com/x/y"
|
||||
# version = "2.4.0"
|
||||
|
||||
|
||||
[[constraint]]
|
||||
branch = "master"
|
||||
name = "github.com/mitchellh/go-homedir"
|
202
LICENSE
Normal file
202
LICENSE
Normal file
|
@ -0,0 +1,202 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
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|
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|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
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|
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|
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|
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|
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|
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|
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|
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"You" (or "Your") shall mean an individual or Legal Entity
|
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|
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|
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|
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|
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|
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|
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|
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"Work" shall mean the work of authorship, whether in Source or
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|
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|
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|
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|
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any Contribution intentionally submitted for inclusion in the Work
|
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Notwithstanding the above, nothing herein shall supersede or modify
|
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|
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|
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|
||||
|
||||
END OF TERMS AND CONDITIONS
|
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|
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APPENDIX: How to apply the Apache License to your work.
|
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|
||||
To apply the Apache License to your work, attach the following
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|
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|
||||
|
||||
Copyright 2017 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
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
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|
||||
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.
|
||||
|
3
README.md
Normal file
3
README.md
Normal file
|
@ -0,0 +1,3 @@
|
|||
# Luzifer / short\_path
|
||||
|
||||
`short_path` is a very small utility to shorten the current path into a less readable but more useful version to be included in shell prompts. Especially Go developers know paths like `/home/luzifer/workspaces/private/go/src/github.com/Luzifer/short_path` which already takes up most of the space on the prompt. This tool shortens the path to `~/w/p/g/s/g/Luzifer/short_path` which is much shorter and you should be able to know from that what the elements are.
|
33
main.go
Normal file
33
main.go
Normal file
|
@ -0,0 +1,33 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"strings"
|
||||
|
||||
homedir "github.com/mitchellh/go-homedir"
|
||||
)
|
||||
|
||||
func main() {
|
||||
cur, err := os.Getwd()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
home, err := homedir.Dir()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
// Shorten homedir
|
||||
cur = strings.Replace(cur, home, "~", 1)
|
||||
|
||||
out := strings.Split(cur, "/")
|
||||
for i := 0; i < len(out)-2; i++ {
|
||||
if len(out[i]) > 0 {
|
||||
out[i] = string(out[i][0])
|
||||
}
|
||||
}
|
||||
|
||||
fmt.Print(strings.Join(out, "/"))
|
||||
}
|
21
vendor/github.com/mitchellh/go-homedir/LICENSE
generated
vendored
Normal file
21
vendor/github.com/mitchellh/go-homedir/LICENSE
generated
vendored
Normal file
|
@ -0,0 +1,21 @@
|
|||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2013 Mitchell Hashimoto
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
14
vendor/github.com/mitchellh/go-homedir/README.md
generated
vendored
Normal file
14
vendor/github.com/mitchellh/go-homedir/README.md
generated
vendored
Normal file
|
@ -0,0 +1,14 @@
|
|||
# go-homedir
|
||||
|
||||
This is a Go library for detecting the user's home directory without
|
||||
the use of cgo, so the library can be used in cross-compilation environments.
|
||||
|
||||
Usage is incredibly simple, just call `homedir.Dir()` to get the home directory
|
||||
for a user, and `homedir.Expand()` to expand the `~` in a path to the home
|
||||
directory.
|
||||
|
||||
**Why not just use `os/user`?** The built-in `os/user` package requires
|
||||
cgo on Darwin systems. This means that any Go code that uses that package
|
||||
cannot cross compile. But 99% of the time the use for `os/user` is just to
|
||||
retrieve the home directory, which we can do for the current user without
|
||||
cgo. This library does that, enabling cross-compilation.
|
137
vendor/github.com/mitchellh/go-homedir/homedir.go
generated
vendored
Normal file
137
vendor/github.com/mitchellh/go-homedir/homedir.go
generated
vendored
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|
@ -0,0 +1,137 @@
|
|||
package homedir
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
// DisableCache will disable caching of the home directory. Caching is enabled
|
||||
// by default.
|
||||
var DisableCache bool
|
||||
|
||||
var homedirCache string
|
||||
var cacheLock sync.RWMutex
|
||||
|
||||
// Dir returns the home directory for the executing user.
|
||||
//
|
||||
// This uses an OS-specific method for discovering the home directory.
|
||||
// An error is returned if a home directory cannot be detected.
|
||||
func Dir() (string, error) {
|
||||
if !DisableCache {
|
||||
cacheLock.RLock()
|
||||
cached := homedirCache
|
||||
cacheLock.RUnlock()
|
||||
if cached != "" {
|
||||
return cached, nil
|
||||
}
|
||||
}
|
||||
|
||||
cacheLock.Lock()
|
||||
defer cacheLock.Unlock()
|
||||
|
||||
var result string
|
||||
var err error
|
||||
if runtime.GOOS == "windows" {
|
||||
result, err = dirWindows()
|
||||
} else {
|
||||
// Unix-like system, so just assume Unix
|
||||
result, err = dirUnix()
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
homedirCache = result
|
||||
return result, nil
|
||||
}
|
||||
|
||||
// Expand expands the path to include the home directory if the path
|
||||
// is prefixed with `~`. If it isn't prefixed with `~`, the path is
|
||||
// returned as-is.
|
||||
func Expand(path string) (string, error) {
|
||||
if len(path) == 0 {
|
||||
return path, nil
|
||||
}
|
||||
|
||||
if path[0] != '~' {
|
||||
return path, nil
|
||||
}
|
||||
|
||||
if len(path) > 1 && path[1] != '/' && path[1] != '\\' {
|
||||
return "", errors.New("cannot expand user-specific home dir")
|
||||
}
|
||||
|
||||
dir, err := Dir()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return filepath.Join(dir, path[1:]), nil
|
||||
}
|
||||
|
||||
func dirUnix() (string, error) {
|
||||
// First prefer the HOME environmental variable
|
||||
if home := os.Getenv("HOME"); home != "" {
|
||||
return home, nil
|
||||
}
|
||||
|
||||
// If that fails, try getent
|
||||
var stdout bytes.Buffer
|
||||
cmd := exec.Command("getent", "passwd", strconv.Itoa(os.Getuid()))
|
||||
cmd.Stdout = &stdout
|
||||
if err := cmd.Run(); err != nil {
|
||||
// If the error is ErrNotFound, we ignore it. Otherwise, return it.
|
||||
if err != exec.ErrNotFound {
|
||||
return "", err
|
||||
}
|
||||
} else {
|
||||
if passwd := strings.TrimSpace(stdout.String()); passwd != "" {
|
||||
// username:password:uid:gid:gecos:home:shell
|
||||
passwdParts := strings.SplitN(passwd, ":", 7)
|
||||
if len(passwdParts) > 5 {
|
||||
return passwdParts[5], nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// If all else fails, try the shell
|
||||
stdout.Reset()
|
||||
cmd = exec.Command("sh", "-c", "cd && pwd")
|
||||
cmd.Stdout = &stdout
|
||||
if err := cmd.Run(); err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
result := strings.TrimSpace(stdout.String())
|
||||
if result == "" {
|
||||
return "", errors.New("blank output when reading home directory")
|
||||
}
|
||||
|
||||
return result, nil
|
||||
}
|
||||
|
||||
func dirWindows() (string, error) {
|
||||
// First prefer the HOME environmental variable
|
||||
if home := os.Getenv("HOME"); home != "" {
|
||||
return home, nil
|
||||
}
|
||||
|
||||
drive := os.Getenv("HOMEDRIVE")
|
||||
path := os.Getenv("HOMEPATH")
|
||||
home := drive + path
|
||||
if drive == "" || path == "" {
|
||||
home = os.Getenv("USERPROFILE")
|
||||
}
|
||||
if home == "" {
|
||||
return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank")
|
||||
}
|
||||
|
||||
return home, nil
|
||||
}
|
112
vendor/github.com/mitchellh/go-homedir/homedir_test.go
generated
vendored
Normal file
112
vendor/github.com/mitchellh/go-homedir/homedir_test.go
generated
vendored
Normal file
|
@ -0,0 +1,112 @@
|
|||
package homedir
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/user"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func patchEnv(key, value string) func() {
|
||||
bck := os.Getenv(key)
|
||||
deferFunc := func() {
|
||||
os.Setenv(key, bck)
|
||||
}
|
||||
|
||||
os.Setenv(key, value)
|
||||
return deferFunc
|
||||
}
|
||||
|
||||
func BenchmarkDir(b *testing.B) {
|
||||
// We do this for any "warmups"
|
||||
for i := 0; i < 10; i++ {
|
||||
Dir()
|
||||
}
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
Dir()
|
||||
}
|
||||
}
|
||||
|
||||
func TestDir(t *testing.T) {
|
||||
u, err := user.Current()
|
||||
if err != nil {
|
||||
t.Fatalf("err: %s", err)
|
||||
}
|
||||
|
||||
dir, err := Dir()
|
||||
if err != nil {
|
||||
t.Fatalf("err: %s", err)
|
||||
}
|
||||
|
||||
if u.HomeDir != dir {
|
||||
t.Fatalf("%#v != %#v", u.HomeDir, dir)
|
||||
}
|
||||
}
|
||||
|
||||
func TestExpand(t *testing.T) {
|
||||
u, err := user.Current()
|
||||
if err != nil {
|
||||
t.Fatalf("err: %s", err)
|
||||
}
|
||||
|
||||
cases := []struct {
|
||||
Input string
|
||||
Output string
|
||||
Err bool
|
||||
}{
|
||||
{
|
||||
"/foo",
|
||||
"/foo",
|
||||
false,
|
||||
},
|
||||
|
||||
{
|
||||
"~/foo",
|
||||
filepath.Join(u.HomeDir, "foo"),
|
||||
false,
|
||||
},
|
||||
|
||||
{
|
||||
"",
|
||||
"",
|
||||
false,
|
||||
},
|
||||
|
||||
{
|
||||
"~",
|
||||
u.HomeDir,
|
||||
false,
|
||||
},
|
||||
|
||||
{
|
||||
"~foo/foo",
|
||||
"",
|
||||
true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range cases {
|
||||
actual, err := Expand(tc.Input)
|
||||
if (err != nil) != tc.Err {
|
||||
t.Fatalf("Input: %#v\n\nErr: %s", tc.Input, err)
|
||||
}
|
||||
|
||||
if actual != tc.Output {
|
||||
t.Fatalf("Input: %#v\n\nOutput: %#v", tc.Input, actual)
|
||||
}
|
||||
}
|
||||
|
||||
DisableCache = true
|
||||
defer func() { DisableCache = false }()
|
||||
defer patchEnv("HOME", "/custom/path/")()
|
||||
expected := filepath.Join("/", "custom", "path", "foo/bar")
|
||||
actual, err := Expand("~/foo/bar")
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("No error is expected, got: %v", err)
|
||||
} else if actual != expected {
|
||||
t.Errorf("Expected: %v; actual: %v", expected, actual)
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue