func runp(jirix *jiri.X, cmd *cmdline.Command, args []string) error {
hasUntrackedSet := profilescmdline.IsFlagSet(cmd.ParsedFlags, "has-untracked")
hasUncommitedSet := profilescmdline.IsFlagSet(cmd.ParsedFlags, "has-uncommitted")
hasGerritSet := profilescmdline.IsFlagSet(cmd.ParsedFlags, "has-gerrit-message")
if runpFlags.interactive {
runpFlags.collateOutput = false
}
var keysRE, branchRE *regexp.Regexp
var err error
if profilescmdline.IsFlagSet(cmd.ParsedFlags, "projects") {
re := ""
for _, pre := range strings.Split(runpFlags.projectKeys, ",") {
re += pre + "|"
}
re = strings.TrimRight(re, "|")
keysRE, err = regexp.Compile(re)
if err != nil {
return fmt.Errorf("failed to compile projects regexp: %q: %v", runpFlags.projectKeys, err)
}
}
if profilescmdline.IsFlagSet(cmd.ParsedFlags, "has-branch") {
branchRE, err = regexp.Compile(runpFlags.hasBranch)
if err != nil {
return fmt.Errorf("failed to compile has-branch regexp: %q: %v", runpFlags.hasBranch, err)
}
}
for _, f := range []string{"show-key-prefix", "show-name-prefix"} {
if profilescmdline.IsFlagSet(cmd.ParsedFlags, f) {
if runpFlags.interactive && profilescmdline.IsFlagSet(cmd.ParsedFlags, "interactive") {
fmt.Fprintf(jirix.Stderr(), "WARNING: interactive mode being disabled because %s was set\n", f)
}
runpFlags.interactive = false
runpFlags.collateOutput = true
break
}
}
git := gitutil.New(jirix.NewSeq())
homeBranch, err := git.CurrentBranchName()
if err != nil {
// jiri was run from outside of a project. Let's assume we'll
// use all projects if none have been specified via the projects flag.
if keysRE == nil {
keysRE = regexp.MustCompile(".*")
}
}
dirty := false
if hasUntrackedSet || hasUncommitedSet {
dirty = true
}
states, err := project.GetProjectStates(jirix, dirty)
if err != nil {
return err
}
mapInputs := map[project.ProjectKey]*mapInput{}
var keys project.ProjectKeys
for key, state := range states {
if keysRE != nil {
if !keysRE.MatchString(string(key)) {
continue
}
} else {
if state.CurrentBranch != homeBranch {
continue
}
}
if branchRE != nil {
found := false
for _, br := range state.Branches {
if branchRE.MatchString(br.Name) {
found = true
break
}
}
if !found {
continue
}
}
if hasUntrackedSet && (state.HasUntracked != runpFlags.hasUntracked) {
continue
}
if hasUncommitedSet && (state.HasUncommitted != runpFlags.hasUncommitted) {
continue
}
if hasGerritSet {
hasMsg := false
for _, br := range state.Branches {
if (state.CurrentBranch == br.Name) && br.HasGerritMessage {
hasMsg = true
break
}
}
if hasMsg != runpFlags.hasGerritMessage {
continue
}
}
mapInputs[key] = &mapInput{
ProjectState: state,
jirix: jirix,
key: key,
}
keys = append(keys, key)
}
total := len(mapInputs)
index := 1
for _, mi := range mapInputs {
mi.index = index
mi.total = total
index++
}
if runpFlags.verbose {
fmt.Fprintf(jirix.Stdout(), "Project Names: %s\n", strings.Join(stateNames(mapInputs), " "))
fmt.Fprintf(jirix.Stdout(), "Project Keys: %s\n", strings.Join(stateKeys(mapInputs), " "))
}
reader, err := profilesreader.NewReader(jirix, runpFlags.ProfilesMode, runpFlags.DBFilename)
runner := &runner{
reader: reader,
args: args,
}
mr := simplemr.MR{}
if runpFlags.interactive {
// Run one mapper at a time.
mr.NumMappers = 1
sort.Sort(keys)
}
in, out := make(chan *simplemr.Record, len(mapInputs)), make(chan *simplemr.Record, len(mapInputs))
sigch := make(chan os.Signal)
signal.Notify(sigch, os.Interrupt)
go func() { <-sigch; mr.Cancel() }()
go mr.Run(in, out, runner, runner)
for _, key := range keys {
in <- &simplemr.Record{string(key), []interface{}{mapInputs[key]}}
}
close(in)
<-out
return mr.Error()
}
func (r *runner) Map(mr *simplemr.MR, key string, val interface{}) error {
mi := val.(*mapInput)
output := &mapOutput{
key: key,
mi: mi}
jirix := mi.jirix
path := os.Getenv("SHELL")
if path == "" {
path = "sh"
}
var wg sync.WaitGroup
cmd := exec.Command(path, "-c", strings.Join(r.args, " "))
cmd.Env = envvar.MapToSlice(jirix.Env())
cmd.Dir = mi.ProjectState.Project.Path
cmd.Stdin = mi.jirix.Stdin()
var stdoutCloser, stderrCloser io.Closer
if runpFlags.interactive {
cmd.Stdout = jirix.Stdout()
cmd.Stderr = jirix.Stderr()
} else {
var stdout io.Writer
stderr := r.serializedWriter(jirix.Stderr())
var cleanup func()
if runpFlags.collateOutput {
// Write standard output to a file, stderr
// is not collated.
f, err := ioutil.TempFile("", mi.ProjectState.Project.Name+"-")
if err != nil {
return err
}
stdout = f
output.outputFilename = f.Name()
cleanup = func() {
os.Remove(output.outputFilename)
}
// The child process will have exited by the
// time this method returns so it's safe to close the file
// here.
defer f.Close()
} else {
stdout = r.serializedWriter(jirix.Stdout())
cleanup = func() {}
}
if !runpFlags.showNamePrefix && !runpFlags.showKeyPrefix {
// write directly to stdout, stderr if there's no prefix
cmd.Stdout = stdout
cmd.Stderr = stderr
} else {
stdoutReader, stdoutWriter, err := os.Pipe()
if err != nil {
cleanup()
return err
}
stderrReader, stderrWriter, err := os.Pipe()
if err != nil {
cleanup()
stdoutReader.Close()
stdoutWriter.Close()
return err
}
cmd.Stdout = stdoutWriter
cmd.Stderr = stderrWriter
// Record the write end of the pipe so that it can be closed
// after the child has exited, this ensures that all goroutines
// will finish.
stdoutCloser = stdoutWriter
stderrCloser = stderrWriter
prefix := key
if runpFlags.showNamePrefix {
prefix = mi.ProjectState.Project.Name
}
wg.Add(2)
go func() { copyWithPrefix(prefix, stdout, stdoutReader); wg.Done() }()
go func() { copyWithPrefix(prefix, stderr, stderrReader); wg.Done() }()
}
}
if err := cmd.Start(); err != nil {
mi.result = err
}
done := make(chan error)
go func() {
done <- cmd.Wait()
}()
select {
case output.err = <-done:
if output.err != nil && runpFlags.exitOnError {
mr.Cancel()
}
case <-mr.CancelCh():
output.err = cmd.Process.Kill()
}
for _, closer := range []io.Closer{stdoutCloser, stderrCloser} {
if closer != nil {
closer.Close()
}
}
wg.Wait()
mr.MapOut(key, output)
return nil
}