+func (wkr *worker) copyRunnerData() (stdout, stderr []byte, err error) {
+ hash := fmt.Sprintf("%x", wkr.wp.runnerMD5)
+ dstdir, _ := filepath.Split(wkr.wp.runnerCmd)
+ logger := wkr.logger.WithFields(logrus.Fields{
+ "hash": hash,
+ "path": wkr.wp.runnerCmd,
+ })
+
+ stdout, stderr, err = wkr.executor.Execute(nil, `md5sum `+wkr.wp.runnerCmd, nil)
+ if err == nil && len(stderr) == 0 && bytes.Equal(stdout, []byte(hash+" "+wkr.wp.runnerCmd+"\n")) {
+ logger.Info("runner binary already exists on worker, with correct hash")
+ return
+ }
+
+ // Note touch+chmod come before writing data, to avoid the
+ // possibility of md5 being correct while file mode is
+ // incorrect.
+ cmd := `set -e; dstdir="` + dstdir + `"; dstfile="` + wkr.wp.runnerCmd + `"; mkdir -p "$dstdir"; touch "$dstfile"; chmod 0755 "$dstdir" "$dstfile"; cat >"$dstfile"`
+ if wkr.instance.RemoteUser() != "root" {
+ cmd = `sudo sh -c '` + strings.Replace(cmd, "'", "'\\''", -1) + `'`
+ }
+ logger.WithField("cmd", cmd).Info("installing runner binary on worker")
+ stdout, stderr, err = wkr.executor.Execute(nil, cmd, bytes.NewReader(wkr.wp.runnerData))
+ return
+}
+