/*
-goredo -- redo implementation on pure Go
+goredo -- djb's redo implementation on pure Go
Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
CNone string = "NONE"
flagNoProgress = flag.Bool("no-progress", false, fmt.Sprintf("no progress printing (%s=1), also implies -no-status", EnvNoProgress))
- flagDebug = flag.Bool("debug", false, fmt.Sprintf("enable debug logging (%s=1)", EnvDebug))
+ flagDebug = flag.Bool("d", false, fmt.Sprintf("enable debug logging (%s=1)", EnvDebug))
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))
- LogMutex sync.Mutex
- LogLenPrev int
+ LogMutex sync.Mutex
+ KeyEraseLine string
+ LogWasStatus bool
)
func init() {
CWarn = string(t.Escape.Magenta)
CJS = string(t.Escape.White)
CReset = string(t.Escape.Reset)
+ KeyEraseLine = fmt.Sprintf("%s[K", CReset[0:1])
}
-func fillUpToTermSize(s, end string) string {
- sLen := len(s)
- if sLen < LogLenPrev {
- s += strings.Repeat(" ", LogLenPrev-sLen)
- LogLenPrev = sLen
- } else {
- LogLenPrev = sLen
+func erasedStatus(s, end string) string {
+ if LogWasStatus {
+ s += KeyEraseLine
}
return s + end
}
}
switch level {
case CNone:
+ p = StderrPrefix + p + fmt.Sprintf(format, args...)
LogMutex.Lock()
- os.Stderr.WriteString(fillUpToTermSize(
- StderrPrefix+p+fmt.Sprintf(format, args...), "\n",
- ))
+ os.Stderr.WriteString(erasedStatus(p, "\n"))
+ LogWasStatus = false
LogMutex.Unlock()
return
case CDebug:
msg := fmt.Sprintf(format, args...)
msg = StderrPrefix + colourize(level, p+strings.Repeat(". ", Level)+msg)
LogMutex.Lock()
- os.Stderr.WriteString(fillUpToTermSize(msg, "\n"))
+ os.Stderr.WriteString(erasedStatus(msg, "\n"))
+ LogWasStatus = false
LogMutex.Unlock()
}