Download link for 1.26.0 release

[goredo.git] / main.go

diff --git a/main.go b/main.go
index 732564b9a79eca175913589239de1d07c9520f9d..8791af0d41175759dc5fa7f9a1fc78beea1954e1 100644 (file)
--- a/main.go
+++ b/main.go
@@ -1,6 +1,6 @@
 /*
 goredo -- djb's redo implementation on pure Go
-Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2020-2022 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
@@ -55,12 +55,14 @@ const (
        CmdNameRedoStamp    = "redo-stamp"
        CmdNameRedoTargets  = "redo-targets"
        CmdNameRedoWhichdo  = "redo-whichdo"
+       CmdNameRedoDepFix   = "redo-depfix"
 )
 
 var (
        Cwd       string
        BuildUUID string
        IsTopRedo bool // is it the top redo instance
+       UmaskCur  int
 )
 
 func mustSetenv(key string) {
@@ -112,6 +114,7 @@ func main() {
                        CmdNameRedoAffects,
                        CmdNameRedoAlways,
                        CmdNameRedoCleanup,
+                       CmdNameRedoDepFix,
                        CmdNameRedoDot,
                        CmdNameRedoIfchange,
                        CmdNameRedoIfcreate,
@@ -132,6 +135,9 @@ func main() {
        }
        log.SetFlags(log.Lshortfile)
 
+       UmaskCur = syscall.Umask(0)
+       syscall.Umask(UmaskCur)
+
        var err error
        Cwd, err = os.Getwd()
        if err != nil {
@@ -196,6 +202,7 @@ func main() {
        }
        NoColor = os.Getenv(EnvNoColor) != ""
        NoSync = os.Getenv(EnvNoSync) == "1"
+       StopIfMod = os.Getenv(EnvStopIfMod) == "1"
        switch s := os.Getenv(EnvInodeTrust); s {
        case "none":
                InodeTrust = InodeTrustNone
@@ -227,7 +234,11 @@ func main() {
        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 {
@@ -237,7 +248,8 @@ func main() {
                if err != nil {
                        log.Fatalln(err)
                }
-               if err = unix.Flock(int(fdLock.Fd()), unix.LOCK_UN); err != nil {
+               flock.Type = unix.F_UNLCK
+               if err = unix.FcntlFlock(fdLock.Fd(), unix.F_SETLK, &flock); err != nil {
                        log.Fatalln(err)
                }
                OODTgts = map[string]struct{}{}
@@ -327,7 +339,7 @@ CmdSwitch:
                        }
                }
        case CmdNameRedoIfchange:
-               ok, err = ifchange(tgts, false, traced)
+               ok, err = ifchange(tgts, *flagForcedIfchange, traced)
                if err == nil {
                        err = depsWrite(fdDep, tgts)
                }
@@ -337,8 +349,8 @@ CmdSwitch:
                }
                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
@@ -489,6 +501,8 @@ CmdSwitch:
                for _, src := range srcs {
                        fmt.Println(src)
                }
+       case CmdNameRedoDepFix:
+               err = depFix(Cwd)
        default:
                log.Fatalln("unknown command", cmdName)
        }