/*
goredo -- djb's redo implementation on pure Go
-Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2020-2023 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
"bufio"
"bytes"
"crypto/rand"
+ "errors"
"flag"
"fmt"
"io"
- "io/ioutil"
"log"
"os"
+ "os/signal"
"path"
"path/filepath"
"runtime"
"sort"
"strconv"
+ "syscall"
"go.cypherpunks.ru/recfile"
"golang.org/x/sys/unix"
CmdNameRedoStamp = "redo-stamp"
CmdNameRedoTargets = "redo-targets"
CmdNameRedoWhichdo = "redo-whichdo"
+ CmdNameRedoDepFix = "redo-depfix"
+ CmdNameRedoInode = "redo-inode"
)
var (
Cwd string
BuildUUID string
IsTopRedo bool // is it the top redo instance
+ UmaskCur int
)
-func mustSetenv(key, value string) {
- if err := os.Setenv(key, value); err != nil {
+func mustSetenv(key string) {
+ if err := os.Setenv(key, "1"); err != nil {
panic(err)
}
}
CmdNameRedoAffects,
CmdNameRedoAlways,
CmdNameRedoCleanup,
+ CmdNameRedoDepFix,
CmdNameRedoDot,
CmdNameRedoIfchange,
CmdNameRedoIfcreate,
}
log.SetFlags(log.Lshortfile)
+ UmaskCur = syscall.Umask(0)
+ syscall.Umask(UmaskCur)
+
var err error
Cwd, err = os.Getwd()
if err != nil {
log.Fatalln(err)
}
- NoColor = os.Getenv(EnvNoColor) != ""
- NoSync = os.Getenv(EnvNoSync) == "1"
- InodeTrust = os.Getenv(EnvInodeNoTrust) == ""
-
TopDir = os.Getenv(EnvTopDir)
if TopDir == "" {
TopDir = "/"
DepCwd = os.Getenv(EnvDepCwd)
if flagStderrKeep != nil && *flagStderrKeep {
- mustSetenv(EnvStderrKeep, "1")
+ mustSetenv(EnvStderrKeep)
}
if flagStderrSilent != nil && *flagStderrSilent {
- mustSetenv(EnvStderrSilent, "1")
+ mustSetenv(EnvStderrSilent)
}
if flagNoProgress != nil && *flagNoProgress {
- mustSetenv(EnvNoProgress, "1")
+ mustSetenv(EnvNoProgress)
}
if flagDebug != nil && *flagDebug {
- mustSetenv(EnvDebug, "1")
+ mustSetenv(EnvDebug)
}
if flagLogWait != nil && *flagLogWait {
- mustSetenv(EnvLogWait, "1")
+ mustSetenv(EnvLogWait)
}
if flagLogLock != nil && *flagLogLock {
- mustSetenv(EnvLogLock, "1")
+ mustSetenv(EnvLogLock)
}
if flagLogPid != nil && *flagLogPid {
- mustSetenv(EnvLogPid, "1")
+ mustSetenv(EnvLogPid)
}
if flagLogJS != nil && *flagLogJS {
- mustSetenv(EnvLogJS, "1")
+ mustSetenv(EnvLogJS)
}
StderrKeep = os.Getenv(EnvStderrKeep) == "1"
StderrSilent = os.Getenv(EnvStderrSilent) == "1"
}
var traced bool
if flagTraceAll != nil && *flagTraceAll {
- mustSetenv(EnvTrace, "1")
+ mustSetenv(EnvTrace)
}
if os.Getenv(EnvTrace) == "1" {
TracedAll = true
} else if flagTrace != nil {
traced = *flagTrace
}
+ NoColor = os.Getenv(EnvNoColor) != ""
+ NoSync = os.Getenv(EnvNoSync) == "1"
+ StopIfMod = os.Getenv(EnvStopIfMod) == "1"
+ switch s := os.Getenv(EnvInodeTrust); s {
+ case "none":
+ InodeTrust = InodeTrustNone
+ case "", "ctime":
+ InodeTrust = InodeTrustCtime
+ case "mtime":
+ InodeTrust = InodeTrustMtime
+ default:
+ log.Fatalln("unknown", EnvInodeTrust, "value")
+ }
+ tracef(CDebug, "inode-trust: %s", InodeTrust)
// Those are internal envs
- FdOODTgts, err = ioutil.TempFile("", "ood-tgts")
+ FdOODTgts, err = os.CreateTemp("", "ood-tgts")
if err != nil {
log.Fatalln(err)
}
if err = os.Remove(FdOODTgts.Name()); err != nil {
log.Fatalln(err)
}
- FdOODTgtsLock, err = ioutil.TempFile("", "ood-tgts.lock")
+ FdOODTgtsLock, err = os.CreateTemp("", "ood-tgts.lock")
if err != nil {
log.Fatalln(err)
}
if v := os.Getenv(EnvOODTgtsFd); v != "" {
fd := mustParseFd(v, EnvOODTgtsFd)
fdLock := mustParseFd(v, EnvOODTgtsLockFd)
- if err = unix.Flock(int(fdLock.Fd()), unix.LOCK_EX); err != nil {
+ flock := unix.Flock_t{
+ Type: unix.F_WRLCK,
+ Whence: io.SeekStart,
+ }
+ if err = unix.FcntlFlock(fdLock.Fd(), unix.F_SETLKW, &flock); err != nil {
log.Fatalln(err)
}
if _, err = fd.Seek(0, io.SeekStart); err != nil {
log.Fatalln(err)
}
- tgtsRaw, err := ioutil.ReadAll(bufio.NewReader(fd))
+ tgtsRaw, err := io.ReadAll(bufio.NewReader(fd))
if err != nil {
log.Fatalln(err)
}
- unix.Flock(int(fdLock.Fd()), unix.LOCK_UN)
+ flock.Type = unix.F_UNLCK
+ if err = unix.FcntlFlock(fdLock.Fd(), unix.F_SETLK, &flock); err != nil {
+ log.Fatalln(err)
+ }
OODTgts = map[string]struct{}{}
for _, tgtRaw := range bytes.Split(tgtsRaw, []byte{0}) {
t := string(tgtRaw)
continue
}
OODTgts[t] = struct{}{}
- trace(CDebug, "ood: known to be: %s", t)
+ tracef(CDebug, "ood: known to be: %s", t)
}
}
}
}
+ killed := make(chan os.Signal, 1)
+ signal.Notify(killed, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
+ go func() {
+ <-killed
+ tracef(CDebug, "[%s] killed", BuildUUID)
+ jsReleaseAll()
+ RunningProcsM.Lock()
+ for pid, proc := range RunningProcs {
+ tracef(CDebug, "[%s] killing child %d", BuildUUID, pid)
+ _ = proc.Signal(syscall.SIGTERM)
+ }
+ os.Exit(1)
+ }()
+
ok := true
err = nil
- trace(
+ tracef(
CDebug, "[%s] run: %s %s cwd:%s dirprefix:%s",
BuildUUID, cmdName, tgts, Cwd, DirPrefix,
)
}
}
case CmdNameRedoIfchange:
- ok, err = ifchange(tgts, false, traced)
+ ok, err = ifchange(tgts, *flagForcedIfchange, traced)
if err == nil {
- err = writeDeps(fdDep, tgts)
+ err = depsWrite(fdDep, tgts)
}
case CmdNameRedoIfcreate:
if fdDep == nil {
}
for _, tgt := range tgts {
tgtRel, err := filepath.Rel(
- filepath.Join(Cwd, DirPrefix),
- filepath.Join(Cwd, tgt),
+ path.Join(Cwd, DirPrefix),
+ path.Join(Cwd, tgt),
)
if err != nil {
break
log.Fatalln("single target expected")
}
var fdTmp *os.File
- fdTmp, err = ioutil.TempFile("", "whichdo")
+ fdTmp, err = os.CreateTemp("", "whichdo")
if err != nil {
break
}
for {
m, err := r.NextMap()
if err != nil {
- if err == io.EOF {
+ if errors.Is(err, io.EOF) {
break
}
break CmdSwitch
for _, src := range srcs {
fmt.Println(src)
}
+ case CmdNameRedoDepFix:
+ err = depFix(Cwd)
+ case CmdNameRedoInode:
+ var inode *Inode
+ for _, tgt := range tgts {
+ inode, err = inodeFromFileByPath(tgt)
+ if err != nil {
+ break
+ }
+ err = recfileWrite(os.Stdout, append(
+ []recfile.Field{{Name: "Target", Value: tgt}},
+ inode.RecfileFields()...)...)
+ if err != nil {
+ break
+ }
+ }
default:
log.Fatalln("unknown command", cmdName)
}
if !ok || err != nil {
rc = 1
}
- trace(CDebug, "[%s] finished: %s %s", BuildUUID, cmdName, tgts)
+ tracef(CDebug, "[%s] finished: %s %s", BuildUUID, cmdName, tgts)
os.Exit(rc)
}