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package fs
import (
"os"
"path/filepath"
"strings"
"sync"
"time"
"github.com/git-lfs/git-lfs/v3/tools"
"github.com/rubyist/tracerx"
)
func (f *Filesystem) cleanupTmp() error {
tmpdir := f.TempDir()
if len(tmpdir) == 0 {
return nil
}
// No temporary directory? No problem.
if _, err := os.Stat(tmpdir); err != nil && os.IsNotExist(err) {
return nil
}
traversedDirectories := &sync.Map{}
var walkErr error
tools.FastWalkDir(tmpdir, func(parentDir string, info os.FileInfo, err error) {
if err != nil {
walkErr = err
}
if walkErr != nil {
return
}
path := filepath.Join(parentDir, info.Name())
if info.IsDir() {
traversedDirectories.Store(path, info)
return
}
parts := strings.SplitN(info.Name(), "-", 2)
oid := parts[0]
if len(parts) == 2 && len(oid) == 64 {
fi, err := os.Stat(f.ObjectPathname(oid))
if err == nil && !fi.IsDir() {
tracerx.Printf("Removing existing tmp object file: %s", path)
os.RemoveAll(path)
return
}
}
// Don't prune items in a directory younger than an hour. These
// items could be hard links to files from other repositories,
// which would have an older timestamp but which are still in
// use by some active process. Exempt the main temporary from
// this check, since we frequently modify it and we'd never
// prune otherwise.
if tmpdir != parentDir {
var dirInfo os.FileInfo
entry, ok := traversedDirectories.Load(parentDir)
if ok {
dirInfo = entry.(os.FileInfo)
} else {
dirInfo, err = os.Stat(parentDir)
if err != nil {
return
}
traversedDirectories.Store(path, dirInfo)
}
if time.Since(dirInfo.ModTime()) <= time.Hour {
return
}
}
if time.Since(info.ModTime()) > time.Hour {
tracerx.Printf("Removing old tmp object file: %s", path)
os.RemoveAll(path)
return
}
})
return walkErr
}
|
