func initDebugLogger() {
debugfile := os.Getenv("DEBUG_LOG")
if debugfile == "" {
return
}
fmt.Fprintf(os.Stderr, "debug log file %v\n", debugfile)
f, err := fs.OpenFile(debugfile, os.O_WRONLY|os.O_APPEND, 0600)
if err == nil {
_, err = f.Seek(2, 0)
if err != nil {
fmt.Fprintf(os.Stderr, "unable to seek to the end of %v: %v\n", debugfile, err)
os.Exit(3)
}
}
if err != nil && os.IsNotExist(errors.Cause(err)) {
f, err = fs.OpenFile(debugfile, os.O_WRONLY|os.O_CREATE, 0600)
}
if err != nil {
fmt.Fprintf(os.Stderr, "unable to open debug log file: %v\n", err)
os.Exit(2)
}
opts.logger = log.New(f, "", log.LstdFlags)
}
// SaveBlob returns a http.HandlerFunc that saves a blob to the repository.
func SaveBlob(c *Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := strings.Split(r.RequestURI, "/")
dir := vars[1]
name := vars[2]
path := filepath.Join(c.path, dir, name)
tmp := path + "_tmp"
tf, err := fs.OpenFile(tmp, os.O_CREATE|os.O_WRONLY, 0600)
if err != nil {
http.Error(w, "500 internal server error", 500)
return
}
if _, err := io.Copy(tf, r.Body); err != nil {
http.Error(w, "400 bad request", 400)
tf.Close()
os.Remove(tmp)
return
}
if err := tf.Close(); err != nil {
http.Error(w, "500 internal server error", 500)
}
if err := os.Rename(tmp, path); err != nil {
http.Error(w, "500 internal server error", 500)
return
}
w.Write([]byte("200 ok"))
}
}
func (node Node) createFileAt(path string, repo Repository) error {
f, err := fs.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0600)
defer f.Close()
if err != nil {
return errors.Wrap(err, "OpenFile")
}
var buf []byte
for _, id := range node.Content {
size, err := repo.LookupBlobSize(id, DataBlob)
if err != nil {
return err
}
buf = buf[:cap(buf)]
if uint(len(buf)) < size {
buf = make([]byte, size)
}
n, err := repo.LoadBlob(DataBlob, id, buf)
if err != nil {
return err
}
buf = buf[:n]
_, err = f.Write(buf)
if err != nil {
return errors.Wrap(err, "Write")
}
}
return nil
}