2 goredo -- redo implementation on pure Go
3 Copyright (C) 2020 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
34 EnvLevel = "REDO_LEVEL"
35 EnvDebug = "REDO_DEBUG"
36 EnvLogWait = "REDO_LOG_WAIT"
37 EnvLogLock = "REDO_LOG_LOCK"
38 EnvLogPid = "REDO_LOG_PID"
39 EnvLogJS = "REDO_LOG_JS"
40 EnvNoColor = "NO_COLOR"
62 flagDebug = flag.Bool("debug", false, fmt.Sprintf("enable debug logging (%s=1)", EnvDebug))
63 flagLogWait = flag.Bool("log-wait", false, fmt.Sprintf("enable wait messages logging (%s=1)", EnvLogWait))
64 flagLogLock = flag.Bool("log-lock", false, fmt.Sprintf("enable lock messages logging (%s=1)", EnvLogLock))
65 flagLogPid = flag.Bool("log-pid", false, fmt.Sprintf("append PIDs (%s=1)", EnvLogPid))
66 flagLogJS = flag.Bool("log-js", false, fmt.Sprintf("enable jobserver messages logging (%s=1)", EnvLogJS))
74 t := term.NewTerminal(&b, "")
75 CDebug = string(t.Escape.Yellow)
76 CRedo = string(t.Escape.Green)
77 CWait = string(t.Escape.Blue)
78 CLock = string(t.Escape.Cyan)
79 CErr = string(t.Escape.Red)
80 CWarn = string(t.Escape.Magenta)
81 CJS = string(t.Escape.White)
82 CReset = string(t.Escape.Reset)
85 func fillUpToTermSize(s, end string) string {
87 if sLen < LogLenPrev {
88 s += strings.Repeat(" ", LogLenPrev-sLen)
96 func trace(level, format string, args ...interface{}) {
99 p = fmt.Sprintf("[%d] ", MyPid)
104 os.Stderr.WriteString(fillUpToTermSize(
105 StderrPrefix+p+fmt.Sprintf(format, args...), "\n",
115 if !(LogWait || Debug) {
122 if !(LogLock || Debug) {
127 if !(LogJS || Debug) {
136 msg := fmt.Sprintf(format, args...)
137 msg = StderrPrefix + colourize(level, p+strings.Repeat(". ", Level)+msg)
139 os.Stderr.WriteString(fillUpToTermSize(msg, "\n"))
143 func colourize(colour, s string) string {
147 return colour + s + CReset