luzifer/duplicity-backup
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Code Issues Releases Wiki Activity

Rework logging

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Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2018-10-08 16:43:53 +02:00
parent 47bf322f28
commit a882b979c0
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
3 changed files with 81 additions and 41 deletions
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40
Gopkg.lock generated
View file

@ -42,6 +42,14 @@
pruneopts = "NUT"
revision = "a1dbeea552b7c8df4b542c66073e393de198a800"
[[projects]]
digest = "1:4059c14e87a2de3a434430340521b5feece186c1469eff0834c29a63870de3ed"
name = "github.com/konsorten/go-windows-terminal-sequences"
packages = ["."]
pruneopts = "NUT"
revision = "5c8c8bd35d3832f5d134ae1e1e375b69a4d25242"
version = "v1.0.1"
[[projects]]
digest = "1:a4df73029d2c42fabcb6b41e327d2f87e685284ec03edf76921c267d9cfc9c23"
name = "github.com/mitchellh/go-homedir"
@ -106,6 +114,22 @@
revision = "7615b9433f86a8bdf29709bf288bc4fd0636a369"
version = "v1.4.2"
[[projects]]
digest = "1:ffe8353de82ab7608fc1fd9a246e71b231af2479727dd165e3720cc2e8918177"
name = "github.com/rifflock/lfshook"
packages = ["."]
pruneopts = "NUT"
revision = "b9218ef580f59a2e72dad1aa33d660150445d05a"
version = "v2.4"
[[projects]]
digest = "1:01252cd79aac70f16cac02a72a1067dd136e0ad6d5b597d0129cf74c739fd8d1"
name = "github.com/sirupsen/logrus"
packages = ["."]
pruneopts = "NUT"
revision = "a67f783a3814b8729bd2dac5780b5f78f8dbd64d"
version = "v1.1.0"
[[projects]]
digest = "1:9d8420bbf131d1618bde6530af37c3799340d3762cc47210c1d9532a4c3a2779"
name = "github.com/spf13/pflag"
@ -114,6 +138,14 @@
revision = "298182f68c66c05229eb03ac171abe6e309ee79a"
version = "v1.0.3"
[[projects]]
branch = "master"
digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8"
name = "golang.org/x/crypto"
packages = ["ssh/terminal"]
pruneopts = "NUT"
revision = "e3636079e1a4c1f337f212cc5cd2aca108f6c900"
[[projects]]
branch = "master"
digest = "1:5193d913046443e59093d66a97a40c51f4a5ea4ceba60f3b3ecf89694de5d16f"
@ -128,9 +160,12 @@
[[projects]]
branch = "master"
digest = "1:a9bc64e1206f3d5ce2ac71e397ddfe81065ac706929d34fcb3f0a48e74cd6e3b"
digest = "1:68ca1f18d986adc1d25a28aa732806ee8f1c874cc5b606e4ba67ddd3eeb89e20"
name = "golang.org/x/sys"
packages = ["unix"]
packages = [
"unix",
"windows",
]
pruneopts = "NUT"
revision = "4497e2df6f9e69048a54498c7affbbec3294ad47"
@ -203,6 +238,7 @@
"github.com/nightlyone/lockfile",
"github.com/onsi/ginkgo",
"github.com/onsi/gomega",
"github.com/rifflock/lfshook",
"gopkg.in/yaml.v2",
]
solver-name = "gps-cdcl"

4
Gopkg.toml
View file

@ -61,3 +61,7 @@
non-go = true
go-tests = true
unused-packages = true
[[constraint]]
name = "github.com/rifflock/lfshook"
version = "2.4.0"

78
main.go
View file

@ -2,7 +2,6 @@ package main
import (
"fmt"
"log"
"os"
"os/exec"
"path"
@ -13,8 +12,11 @@ import (
"github.com/Luzifer/go_helpers/str"
"github.com/Luzifer/go_helpers/which"
"github.com/Luzifer/rconfig"
"github.com/rifflock/lfshook"
"github.com/mitchellh/go-homedir"
"github.com/nightlyone/lockfile"
log "github.com/sirupsen/logrus"
)
var (
@ -24,15 +26,14 @@ var (
RestoreTime string `flag:"time,t" description:"The time from which to restore or list files"`
DryRun bool `flag:"dry-run,n" default:"false" description:"Do a test-run without changes"`
Debug bool `flag:"debug,d" default:"false" description:"Print duplicity commands to output"`
Silent bool `flag:"silent,s" default:"false" description:"Do not print to stdout, only write to logfile (for example useful for crons)"`
DryRun bool `flag:"dry-run,n" default:"false" description:"Do a test-run without changes"`
Silent bool `flag:"silent,s" default:"false" description:"Do not print to stdout, only write to logfile (for example useful for crons)"`
LogLevel string `flag:"log-level" default:"info" description:"Verbosity of logs to use (debug, info, warning, error, ...)"`
VersionAndExit bool `flag:"version" default:"false" description:"Print version and exit"`
}{}
duplicityBinary string
logFile *os.File
version = "dev"
)
@ -40,7 +41,7 @@ var (
func initCFG() {
var err error
if err = rconfig.Parse(&cfg); err != nil {
log.Fatalf("Error while parsing arguments: %s", err)
log.WithError(err).Fatal("Error while parsing arguments")
}
if cfg.VersionAndExit {
@ -48,25 +49,22 @@ func initCFG() {
os.Exit(0)
}
if logLevel, err := log.ParseLevel(cfg.LogLevel); err == nil {
log.SetLevel(logLevel)
} else {
log.Fatalf("Unable to parse log level: %s", err)
}
if cfg.ConfigFile, err = homedir.Expand(cfg.ConfigFile); err != nil {
log.Fatalf("Unable to expand config-file: %s", err)
log.WithError(err).Fatal("Unable to expand config-file")
}
if cfg.LockFile, err = homedir.Expand(cfg.LockFile); err != nil {
log.Fatalf("Unable to expand lock: %s", err)
log.WithError(err).Fatal("Unable to expand lock")
}
if duplicityBinary, err = which.FindInPath("duplicity"); err != nil {
log.Fatalf("Did not find duplicity binary in $PATH, please install it")
}
}
func logf(pattern string, fields ...interface{}) {
t := time.Now().Format("2006-01-02 15:04:05")
pattern = fmt.Sprintf("(%s) ", t) + pattern + "\n"
fmt.Fprintf(logFile, pattern, fields...)
if !cfg.Silent {
fmt.Printf(pattern, fields...)
log.WithError(err).Fatal("Did not find duplicity binary in $PATH, please install it")
}
}
@ -80,7 +78,7 @@ func main() {
lock, err := lockfile.New(cfg.LockFile)
if err != nil {
log.Fatalf("Could not initialize lockfile: %s", err)
log.WithError(err).Fatal("Could not initialize lockfile")
}
// If no command is passed assume we're requesting "help"
@ -94,29 +92,33 @@ func main() {
// Get configuration
configSource, err := os.Open(cfg.ConfigFile)
if err != nil {
log.Fatalf("Unable to open configuration file %s: %s", cfg.ConfigFile, err)
log.WithError(err).Fatalf("Unable to open configuration file %s", cfg.ConfigFile)
}
defer configSource.Close()
config, err = loadConfigFile(configSource)
if err != nil {
log.Fatalf("Unable to read configuration file: %s", err)
log.WithError(err).Fatal("Unable to read configuration file")
}
// Initialize logfile
if err := os.MkdirAll(config.LogDirectory, 0750); err != nil {
log.Fatalf("Unable to create log dir: %s", err)
log.WithError(err).Fatal("Unable to create log dir")
}
logFilePath := path.Join(config.LogDirectory, time.Now().Format("duplicity-backup_2006-01-02_15-04-05.txt"))
if logFile, err = os.Create(logFilePath); err != nil {
log.Fatalf("Unable to open logfile %s: %s", logFilePath, err)
logFile, err := os.Create(logFilePath)
if err != nil {
log.WithError(err).Fatalf("Unable to open logfile %s", logFilePath)
}
defer logFile.Close()
logf("++++ duplicity-backup %s started with command '%s'", version, argv[1])
// Hook into logging and write to file
log.AddHook(lfshook.NewHook(logFile, nil))
log.Infof("++++ duplicity-backup %s started with command '%s'", version, argv[1])
if err := lock.TryLock(); err != nil {
logf("Could not acquire lock: %s", err)
log.WithError(err).Error("Could not acquire lock")
return
}
defer lock.Unlock()
@ -126,7 +128,7 @@ func main() {
}
if config.Cleanup.Type != "none" && str.StringInSlice(argv[1], removeCommands) {
logf("++++ Starting removal of old backups")
log.Info("++++ Starting removal of old backups")
if err := execute(config, []string{commandRemove}); err != nil {
return
@ -134,12 +136,12 @@ func main() {
}
if err := config.Notify(argv[1], true, nil); err != nil {
logf("[ERR] Error sending notifications: %s", err)
log.WithError(err).Error("Error sending notifications")
} else {
logf("[INF] Notifications sent")
log.Info("Notifications sent")
}
logf("++++ Backup finished successfully")
log.Info("++++ Backup finished successfully")
}
func execute(config *configFile, argv []string) error {
@ -150,7 +152,7 @@ func execute(config *configFile, argv []string) error {
)
commandLine, tmpEnv, logFilter, err = config.GenerateCommand(argv, cfg.RestoreTime)
if err != nil {
logf("[ERR] %s", err)
log.WithError(err).Error("Unable to generate command")
return err
}
@ -166,15 +168,13 @@ func execute(config *configFile, argv []string) error {
commandLine = append([]string{"--dry-run"}, commandLine...)
}
if cfg.Debug {
logf("[DBG] Command: %s %s", duplicityBinary, strings.Join(commandLine, " "))
}
log.Debugf("Command: %s %s", duplicityBinary, strings.Join(commandLine, " "))
msgChan := make(chan string, 10)
go func(c chan string, logFilter *regexp.Regexp) {
for l := range c {
if logFilter == nil || logFilter.MatchString(l) {
logf(l)
log.Info(l)
}
}
}(msgChan, logFilter)
@ -189,16 +189,16 @@ func execute(config *configFile, argv []string) error {
close(msgChan)
if err != nil {
logf("[ERR] Execution of duplicity command was unsuccessful! (exit-code was non-zero)")
log.Error("Execution of duplicity command was unsuccessful! (exit-code was non-zero)")
} else {
logf("[INF] Execution of duplicity command was successful.")
log.Info("Execution of duplicity command was successful.")
}
if err != nil {
if nErr := config.Notify(argv[0], false, fmt.Errorf("Could not create backup: %s", err)); nErr != nil {
logf("[ERR] Error sending notifications: %s", nErr)
log.WithError(err).Error("Error sending notifications")
} else {
logf("[INF] Notifications sent")
log.Info("Notifications sent")
}
}