/*
-goredo -- redo implementation on pure Go
-Copyright (C) 2020 Sergey Matveev <stargrave@stargrave.org>
+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
it under the terms of the GNU General Public License as published by
package main
import (
+ "bufio"
+ "bytes"
"crypto/rand"
"flag"
"fmt"
"os"
"path"
"path/filepath"
+ "runtime"
+ "sort"
"strconv"
- "strings"
"go.cypherpunks.ru/recfile"
+ "golang.org/x/sys/unix"
)
var (
func main() {
version := flag.Bool("version", false, "print version")
warranty := flag.Bool("warranty", false, "print warranty information")
- symlinks := flag.Bool("symlinks", false, "create necessary symlinks in current direcotyr")
+ symlinks := flag.Bool("symlinks", false, "create necessary symlinks in current directory")
- flag.Usage = usage
+ flag.Usage = func() { usage(os.Args[0]) }
flag.Parse()
if *warranty {
fmt.Println(Warranty)
return
}
if *version {
- fmt.Println(versionGet())
+ fmt.Println("goredo", Version, "built with", runtime.Version())
return
}
if *symlinks {
"redo-ifchange",
"redo-ifcreate",
"redo-log",
+ "redo-ood",
+ "redo-sources",
"redo-stamp",
+ "redo-targets",
"redo-whichdo",
} {
fmt.Println(os.Args[0], "<-", cmdName)
var err error
Cwd, err = os.Getwd()
if err != nil {
- panic(err)
+ log.Fatalln(err)
}
NoColor = os.Getenv(EnvNoColor) != ""
NoSync = os.Getenv(EnvNoSync) == "1"
+ InodeTrust = os.Getenv(EnvInodeNoTrust) == ""
TopDir = os.Getenv(EnvTopDir)
if TopDir == "" {
panic(err)
}
}
+ DirPrefix = os.Getenv(EnvDirPrefix)
if *flagStderrKeep {
mustSetenv(EnvStderrKeep, "1")
if *flagStderrSilent {
mustSetenv(EnvStderrSilent, "1")
}
+ if *flagNoProgress {
+ mustSetenv(EnvNoProgress, "1")
+ }
if *flagDebug {
mustSetenv(EnvDebug, "1")
}
}
StderrKeep = os.Getenv(EnvStderrKeep) == "1"
StderrSilent = os.Getenv(EnvStderrSilent) == "1"
+ NoProgress = os.Getenv(EnvNoProgress) == "1"
Debug = os.Getenv(EnvDebug) == "1"
LogWait = os.Getenv(EnvLogWait) == "1"
LogLock = os.Getenv(EnvLogLock) == "1"
}
// Those are internal envs
+ FdOODTgts, err = ioutil.TempFile("", "ood-tgts")
+ if err != nil {
+ panic(err)
+ }
+ if err = os.Remove(FdOODTgts.Name()); err != nil {
+ panic(err)
+ }
+ FdOODTgtsLock, err = ioutil.TempFile("", "ood-tgts.lock")
+ if err != nil {
+ panic(err)
+ }
+ if err = os.Remove(FdOODTgtsLock.Name()); err != nil {
+ panic(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 {
+ panic(err)
+ }
+ if _, err = fd.Seek(0, os.SEEK_SET); err != nil {
+ panic(err)
+ }
+ tgtsRaw, err := ioutil.ReadAll(bufio.NewReader(fd))
+ if err != nil {
+ panic(err)
+ }
+ unix.Flock(int(fdLock.Fd()), unix.LOCK_UN)
+ OODTgts = make(map[string]struct{})
+ for _, tgtRaw := range bytes.Split(tgtsRaw, []byte{0}) {
+ t := string(tgtRaw)
+ if t == "" {
+ continue
+ }
+ OODTgts[t] = struct{}{}
+ trace(CDebug, "ood: known to be: %s", t)
+ }
+ }
+
StderrPrefix = os.Getenv(EnvStderrPrefix)
if v := os.Getenv(EnvLevel); v != "" {
Level, err = strconv.Atoi(v)
panic("negative " + EnvLevel)
}
}
+
var fdDep *os.File
if v := os.Getenv(EnvDepFd); v != "" {
fdDep = mustParseFd(v, EnvDepFd)
}
- BuildUUID = os.Getenv(EnvBuildUUID)
+
tgts := flag.Args()
+ BuildUUID = os.Getenv(EnvBuildUUID)
if BuildUUID == "" {
raw := new([16]byte)
if _, err = io.ReadFull(rand.Reader, raw[:]); err != nil {
- panic(err)
+ log.Fatalln(err)
}
raw[6] = (raw[6] & 0x0F) | uint8(4<<4) // version 4
BuildUUID = fmt.Sprintf(
tgts = []string{"all"}
}
}
+
statusInit()
for i, tgt := range tgts {
ok := true
err = nil
cmdName := path.Base(os.Args[0])
- trace(CDebug, "[%s] run: %s %s [%s]", BuildUUID, cmdName, tgts, Cwd)
+ trace(
+ CDebug, "[%s] run: %s %s cwd:%s dirprefix:%s",
+ BuildUUID, cmdName, tgts, Cwd, DirPrefix,
+ )
CmdSwitch:
switch cmdName {
}
case "redo-ifchange":
ok, err = ifchange(tgts, false, traced)
- writeDeps(fdDep, tgts)
+ if err == nil {
+ err = writeDeps(fdDep, tgts)
+ }
case "redo-ifcreate":
if fdDep == nil {
log.Fatalln("no", EnvDepFd)
log.Fatalln("single target expected")
}
var fdTmp *os.File
- fdTmp, err = ioutil.TempFile("", "")
+ fdTmp, err = ioutil.TempFile("", "whichdo")
if err != nil {
break
}
- os.Remove(fdTmp.Name())
+ if err = os.Remove(fdTmp.Name()); err != nil {
+ break
+ }
cwd, tgt := cwdAndTgt(tgts[0])
- cwdRel := cwdMustRel(cwd)
doFile, upLevels, err := findDo(fdTmp, cwd, tgt)
if err != nil {
break
}
- _, err = fdTmp.Seek(0, 0)
+ _, err = fdTmp.Seek(0, os.SEEK_SET)
if err != nil {
break
}
if doFile == "" {
ok = false
} else {
- fmt.Println(path.Join(cwdRel, strings.Repeat("..", upLevels), doFile))
+ p := make([]string, 0, upLevels+2)
+ p = append(p, cwd)
+ for i := 0; i < upLevels; i++ {
+ p = append(p, "..")
+ }
+ p = append(p, doFile)
+ rel, err := filepath.Rel(Cwd, path.Join(p...))
+ if err != nil {
+ panic(err)
+ }
+ fmt.Println(rel)
+ }
+ case "redo-targets":
+ tgts, err = targetsWalker(Cwd)
+ sort.Strings(tgts)
+ for _, tgt := range tgts {
+ fmt.Println(tgt)
+ }
+ case "redo-ood":
+ tgts, err = targetsWalker(Cwd)
+ sort.Strings(tgts)
+ var ood bool
+ for _, tgt := range tgts {
+ ood, err = isOOD(Cwd, tgt, 0, nil)
+ if err != nil {
+ break
+ }
+ if ood {
+ fmt.Println(tgt)
+ }
+ }
+ case "redo-sources":
+ tgts, err = sourcesWalker()
+ sort.Strings(tgts)
+ for _, tgt := range tgts {
+ fmt.Println(tgt)
}
default:
log.Fatalln("unknown command", cmdName)