+func init() {
+ var b bytes.Buffer
+ t := term.NewTerminal(&b, "")
+ CDebug = string(t.Escape.Yellow)
+ CRedo = string(t.Escape.Green)
+ CWait = string(t.Escape.Blue)
+ CLock = string(t.Escape.Cyan)
+ CErr = string(t.Escape.Red)
+ CWarn = string(t.Escape.Magenta)
+ CJS = string(t.Escape.White)
+ CReset = string(t.Escape.Reset)
+ KeyEraseLine = fmt.Sprintf("%s[K", CReset[0:1])
+
+ cmdName := CmdName()
+ if !(cmdName == CmdNameRedo || cmdName == CmdNameRedoIfchange) {
+ return
+ }
+ flagNoProgress = flag.Bool("no-progress", false,
+ fmt.Sprintf("no progress printing (%s=1), also implies -no-status", EnvNoProgress))
+ flagLogWait = flag.Bool("log-wait", false,
+ fmt.Sprintf("enable wait messages logging (%s=1)", EnvLogWait))
+ flagLogLock = flag.Bool("log-lock", false,
+ fmt.Sprintf("enable lock messages logging (%s=1)", EnvLogLock))
+ flagLogPid = flag.Bool("log-pid", false,
+ fmt.Sprintf("append PIDs (%s=1)", EnvLogPid))
+ flagLogJS = flag.Bool("log-js", false,
+ fmt.Sprintf("enable jobserver messages logging (%s=1)", EnvLogJS))
+}
+
+func erasedStatus(s, end string) string {
+ if NoProgress || NoColor {
+ return s + end
+ }
+ return s + KeyEraseLine + end
+}
+
+func withPrependedTgt(s string) {
+ if s[0] != '[' {
+ stderrWrite(erasedStatus(s, "\n"))
+ return
+ }
+ i := strings.IndexByte(s, ']')
+ if i == -1 {
+ stderrWrite(s)
+ return
+ }
+ tgt, s := s[1:i], s[i+1:]
+ if tgt != LastLoggedTgt {
+ LastLoggedTgt = tgt
+ tgt = "redo " + tgt + " ..."
+ if MyPID != 0 {
+ tgt = fmt.Sprintf("[%d] %s", MyPID, tgt)
+ }
+ stderrWrite(erasedStatus(colourize(CDebug, tgt), "\n"))
+ }
+ stderrWrite(erasedStatus(s, "\n"))
+}
+
+func stderrWrite(s string) {
+ LogMutex.Lock()
+ os.Stderr.WriteString(s)
+ LogMutex.Unlock()
+}
+
+func tracef(level, format string, args ...interface{}) {