func (gcmd *command) toExecCmd() (cmd *exec.Cmd, err error) {
cmd = exec.Command(gcmd.executable, gcmd.argv...)
if gcmd.wd != "" {
cmd.Dir = gcmd.wd
}
cmd.Env = effectiveEnv(gcmd.env)
cmd.Stdin = os.Stdin
if gcmd.captureOutput {
outWrapper := newFileWrapper(os.Stdout, &gcmd.recorder, "")
errWrapper := newFileWrapper(os.Stderr, &gcmd.recorder, ansi.ColorCode("red+b"))
cmd.Stdout = outWrapper
cmd.Stderr = errWrapper
} else {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
}
if verbose {
if Env != "" {
util.Debug("#", "Env: %s\n", Env)
}
util.Debug("#", "%s\n", gcmd.commandstr)
}
return cmd, nil
}
// Run runs all the dependencies of this task and when they have completed,
// runs this task.
func (task *Task) Run() {
if !watching && task.Complete {
util.Debug(task.Name, "Already ran\n")
return
}
task.RunWithEvent(task.Name, nil)
}
func (gcmd *command) runAsync() (err error) {
cmd, err := gcmd.toExecCmd()
if err != nil {
return
}
id := gcmd.commandstr
// kills previously spawned process (if exists)
killSpawned(id)
waitgroup.Add(1)
waitExit = true
go func() {
err = cmd.Start()
if err != nil {
fmt.Println(err.Error())
return
}
Processes[id] = cmd.Process
if verbose {
util.Debug("#", "Processes[%q] added\n", id)
}
c := make(chan error, 1)
c <- cmd.Wait()
_ = <-c
waitgroup.Done()
}()
return nil
}
// RunWithEvent runs this task when triggered from a watch.
// *e* FileEvent contains information about the file/directory which changed
// in watch mode.
func (task *Task) RunWithEvent(logName string, e *watcher.FileEvent) error {
if task.RunOnce && task.Complete {
//util.Debug(task.Name, "Already ran\n")
return nil
}
start := time.Now()
if len(task.WatchGlobs) > 0 && len(task.WatchFiles) == 0 {
task.expandGlobs()
if len(task.WatchFiles) == 0 {
util.Error("task", "\""+task.Name+"\" '%v' did not match any files\n", task.WatchGlobs)
}
}
// Run this task only if the file matches watch Regexps
rebuilt := ""
if e != nil {
rebuilt = "rebuilt "
if !task.isWatchedFile(e) {
return nil
}
if verbose {
util.Debug(logName, "%s\n", e.String())
}
}
var err error
log := true
if task.Handler != nil {
context := Context{Task: task, Args: contextArgm}
err = task.Handler.Handle(&context)
if err != nil {
return fmt.Errorf("%q: %s", logName, err.Error())
}
} else if len(task.Dependencies) > 0 {
// no need to log if just dependency
log = false
} else {
util.Info(task.Name, "Ignored. Task does not have a handler or dependencies.\n")
return nil
}
elapsed := time.Now().Sub(start)
if log {
util.Info(logName, "%s%vms\n", rebuilt, elapsed.Nanoseconds()/1e6)
}
task.Complete = true
return nil
}
func buildMain(src string) string {
mustBeMain(src)
exeFile := "godobin-" + godo.Version
if isWindows {
exeFile += ".exe"
}
dir := filepath.Dir(src)
exe := filepath.Join(dir, exeFile)
reasonFormat := "Godofile changed. Rebuilding %s...\n"
argm := minimist.Parse()
rebuild := argm.ZeroBool("rebuild")
if rebuild {
os.Remove(exe)
}
// see if last run exists .godoinfo
fiExe, err := os.Stat(exe)
build := os.IsNotExist(err)
if build {
reasonFormat = "Building %s...\n"
}
fiGodofile, err := os.Stat(src)
if os.IsNotExist(err) {
log.Fatalln(err)
os.Exit(1)
}
build = build || fiExe.ModTime().Before(fiGodofile.ModTime())
if build {
util.Debug("godo", reasonFormat, exe)
err := godo.Run("go build -a -o "+exeFile, godo.In{dir})
if err != nil {
panic(err)
}
}
if rebuild {
util.Info("godo", "ok")
os.Exit(0)
}
return exe
}
func killSpawned(command string) {
process := Processes[command]
if process == nil {
return
}
err := process.Kill()
delete(Processes, command)
if err != nil {
util.Error("Start", "Could not kill existing process %+v\n%s\n", process, err.Error())
return
}
if verbose {
util.Debug("#", "Processes[%q] killed\n", command)
}
}
