-/*
-goredo -- 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
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+// goredo -- djb's redo implementation on pure Go
+// Copyright (C) 2020-2024 Sergey Matveev <stargrave@stargrave.org>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
// Logging facilities
LogWait bool
LogLock bool
LogJS bool
- MyPid int
+ MyPID int
CDebug string
CRedo string
CWarn string
CJS string
CReset string
- CNone string = "NONE"
+ CNone = "NONE"
- flagNoProgress = flag.Bool("no-progress", false, fmt.Sprintf("no progress printing (%s=1), also implies -no-status", EnvNoProgress))
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
+ flagNoProgress *bool
+ flagLogWait *bool
+ flagLogLock *bool
+ flagLogPid *bool
+ flagLogJS *bool
+
+ LogMutex sync.Mutex
+ KeyEraseLine string
+ LastLoggedTgt string
)
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])
+
+ 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 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 NoProgress || NoColor {
+ return s + end
}
- return s + end
+ return s + KeyEraseLine + end
}
-func trace(level, format string, args ...interface{}) {
+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{}) {
var p string
- if MyPid != 0 {
- p = fmt.Sprintf("[%d] ", MyPid)
+ if MyPID != 0 {
+ p = fmt.Sprintf("[%d] ", MyPID)
}
switch level {
case CNone:
- LogMutex.Lock()
- os.Stderr.WriteString(fillUpToTermSize(
- StderrPrefix+p+fmt.Sprintf(format, args...), "\n",
- ))
- LogMutex.Unlock()
+ p = erasedStatus(StderrPrefix+p+fmt.Sprintf(format, args...), "\n")
+ stderrWrite(p)
return
case CDebug:
if !Debug {
}
msg := fmt.Sprintf(format, args...)
msg = StderrPrefix + colourize(level, p+strings.Repeat(". ", Level)+msg)
- LogMutex.Lock()
- os.Stderr.WriteString(fillUpToTermSize(msg, "\n"))
- LogMutex.Unlock()
+ msg = erasedStatus(msg, "\n")
+ stderrWrite(msg)
}
func colourize(colour, s string) string {