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use modification time for version timestamp; change version format to filename~yyyymmdd-hhmmss

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This commit is contained in:
Alexander Graf 2014-09-07 13:40:22 +02:00
parent 78c6a68db9
commit 5faa16f9ee
2 changed files with 48 additions and 15 deletions
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7
versioner/simple.go
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@ -9,7 +9,6 @@ import (
"path/filepath"
"sort"
"strconv"
"time"
"github.com/syncthing/syncthing/osutil"
)
@ -46,7 +45,7 @@ func NewSimple(repoID, repoPath string, params map[string]string) Versioner {
// Move away the named file to a version archive. If this function returns
// nil, the named file does not exist any more (has been archived).
func (v Simple) Archive(filePath string) error {
_, err := os.Stat(filePath)
fileInfo, err := os.Stat(filePath)
if err != nil {
if os.IsNotExist(err) {
if debug {
@ -88,7 +87,7 @@ func (v Simple) Archive(filePath string) error {
return err
}
ver := file + "~" + time.Now().Format("20060102-150405")
ver := file + "~" + fileInfo.ModTime().Format("20060102-150405")
dst := filepath.Join(dir, ver)
if debug {
l.Debugln("moving to", dst)
@ -98,7 +97,7 @@ func (v Simple) Archive(filePath string) error {
return err
}
versions, err := filepath.Glob(filepath.Join(dir, file+"~*"))
versions, err := filepath.Glob(filepath.Join(dir, file+"~[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]"))
if err != nil {
l.Warnln("globbing:", err)
return nil

56
versioner/staggered.go
View File

@ -5,7 +5,6 @@
package versioner
import (
"fmt"
"os"
"path/filepath"
"sort"
@ -46,6 +45,40 @@ func isFile(path string) bool {
return fileInfo.Mode().IsRegular()
}
const TimeLayout = "20060102-150405"
func versionExt(path string) string {
pathSplit := strings.Split(path, "~")
if len(pathSplit) > 1 {
return pathSplit[len(pathSplit)-1]
} else {
return ""
}
}
// Rename versions with old version format
func (v Staggered) renameOld() {
err := filepath.Walk(v.versionsPath, func(path string, f os.FileInfo, err error) error {
if f.Mode().IsRegular() {
versionUnix, err := strconv.ParseInt(strings.Replace(filepath.Ext(path), ".v", "", 1), 10, 0)
if err == nil {
l.Infoln("Renaming file", path, "from old to new version format")
versiondate := time.Unix(versionUnix, 0)
name := path[:len(path)-len(filepath.Ext(path))]
err = osutil.Rename(path, name+"~"+versiondate.Format(TimeLayout))
if err != nil {
l.Infoln("Error renaming to new format", err)
}
}
}
return nil
})
if err != nil {
l.Infoln("Versioner: error scanning versions dir", err)
return
}
}
// The constructor function takes a map of parameters and creates the type.
func NewStaggered(repoID, repoPath string, params map[string]string) Versioner {
maxAge, err := strconv.ParseInt(params["maxAge"], 10, 0)
@ -89,6 +122,9 @@ func NewStaggered(repoID, repoPath string, params map[string]string) Versioner {
l.Debugf("instantiated %#v", s)
}
// Rename version with old version format
s.renameOld()
go func() {
s.clean()
for _ = range time.Tick(time.Duration(cleanInterval) * time.Second) {
@ -134,9 +170,9 @@ func (v Staggered) clean() {
filesPerDir[dir]++
}
case mode.IsRegular():
extension := filepath.Ext(path)
extension := versionExt(path)
dir := filepath.Dir(path)
name := path[:len(path)-len(extension)]
name := path[:len(path)-len(extension)-1]
filesPerDir[dir]++
versionsPerFile[name] = append(versionsPerFile[name], path)
@ -158,7 +194,7 @@ func (v Staggered) clean() {
if numFiles > 0 {
continue
}
if path == v.versionsPath {
if debug {
l.Debugln("Cleaner: versions dir is empty, don't delete", path)
@ -166,7 +202,6 @@ func (v Staggered) clean() {
continue
}
if debug {
l.Debugln("Cleaner: deleting empty directory", path)
}
@ -184,17 +219,16 @@ func (v Staggered) expire(versions []string) {
if debug {
l.Debugln("Versioner: Expiring versions", versions)
}
now := time.Now().Unix()
var prevAge int64
firstFile := true
for _, file := range versions {
if isFile(file) {
versiondate, err := strconv.ParseInt(strings.Replace(filepath.Ext(file), ".v", "", 1), 10, 0)
versionTime, err := time.Parse(TimeLayout, versionExt(file))
if err != nil {
l.Infof("Versioner: file name %q is invalid: %v", file, err)
continue
}
age := now - versiondate
age := int64(time.Since(versionTime).Seconds())
// If the file is older than the max age of the last interval, remove it
if lastIntv := v.interval[len(v.interval)-1]; lastIntv.end > 0 && age > lastIntv.end {
@ -250,7 +284,7 @@ func (v Staggered) Archive(filePath string) error {
v.mutex.Lock()
defer v.mutex.Unlock()
_, err := os.Stat(filePath)
fileInfo, err := os.Stat(filePath)
if err != nil {
if os.IsNotExist(err) {
if debug {
@ -291,7 +325,7 @@ func (v Staggered) Archive(filePath string) error {
return err
}
ver := file + ".v" + fmt.Sprintf("%010d", time.Now().Unix())
ver := file + "~" + fileInfo.ModTime().Format(TimeLayout)
dst := filepath.Join(dir, ver)
if debug {
l.Debugln("moving to", dst)
@ -301,7 +335,7 @@ func (v Staggered) Archive(filePath string) error {
return err
}
versions, err := filepath.Glob(filepath.Join(dir, file+".v[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]"))
versions, err := filepath.Glob(filepath.Join(dir, file+"~[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]"))
if err != nil {
l.Warnln("Versioner: error finding versions for", file, err)
return nil