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s3/local backend: Fix error for overwriting files

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This commit is contained in:
Alexander Neumann
2016-01-24 21:13:24 +01:00
parent 1547d3b656
commit d9c87559b5
2 changed files with 16 additions and 5 deletions
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13
backend/local/local.go
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@@ -171,16 +171,19 @@ func (b *Local) Save(h backend.Handle, p []byte) (err error) {
f := filename(b.p, h.Type, h.Name)
// create directories if necessary, ignore errors
if h.Type == backend.Data {
os.MkdirAll(filepath.Dir(f), backend.Modes.Dir)
}
// test if new path already exists
if _, err := os.Stat(f); err == nil {
return fmt.Errorf("Rename(): file %v already exists", f)
}
// create directories if necessary, ignore errors
if h.Type == backend.Data {
err = os.MkdirAll(filepath.Dir(f), backend.Modes.Dir)
if err != nil {
return err
}
}
err = os.Rename(tmpfile.Name(), f)
debug.Log("local.Save", "save %v: rename %v -> %v: %v",
h, filepath.Base(tmpfile.Name()), filepath.Base(f), err)