func main() {
output := flag.String("o", "", "write generated code to file")
release := flag.Bool("r", false, "write output for release (server config format)")
test := flag.Bool("t", false, "just exit with status code 0 (test if binary exists)")
flag.Parse()
if flag.NArg() != 0 {
usage()
}
if *test {
return
}
if os.Getenv("GO15VENDOREXPERIMENT") != "1" {
fatal(errors.New("environment variable GO15VENDOREXPERIMENT not set to 1"))
}
commit, date, err := git.GetHead("", os.Stderr)
if err != nil {
fatal(err)
}
outfp := os.Stdout
if *output != "" {
if !commitChanged(*output, commit) {
// nothing to write
return
}
outfp, err = os.Create(*output)
if err != nil {
fatal(err)
}
}
printCode(outfp, *release, commit, date)
}
func updateMuteFromSource(outfp, statfp io.Writer, commit string) error {
fmt.Fprintf(statfp, "updating Mute from source...\n")
binary, err := exec.LookPath(os.Args[0])
if err != nil {
return err
}
fmt.Fprintf(statfp, "...binary path: %s\n", binary)
// change to source directory github.com/mutecomm/mute
dir := filepath.Join(filepath.Dir(binary), "..", "src", "github.com", "mutecomm", "mute")
// git status --porcelain
fmt.Fprintf(statfp, "$ git status --porcelain (CWD=%s)\n", dir)
if err := git.Status(dir, statfp); err != nil {
return log.Error(err)
}
// git checkout master
fmt.Fprintf(statfp, "$ git checkout master\n")
if err := git.Checkout(dir, "master", outfp, statfp); err != nil {
return log.Error(err)
}
// git pull
fmt.Fprintf(statfp, "$ git pull\n")
if err := git.Pull(dir, outfp, statfp); err != nil {
return err
}
// get current HEAD
head, _, err := git.GetHead(dir, statfp)
if err != nil {
return log.Error(err)
}
// git checkout, if necessary
var detached bool
if head != commit {
fmt.Fprintf(statfp, "$ git checkout\n")
if err := git.Checkout(dir, commit, outfp, statfp); err != nil {
return log.Error(err)
}
detached = true
}
// go install -v mute/cmd/mutegenerate
fmt.Fprintf(statfp, "$ go install -v ./cmd/mutegenerate\n")
if err := gotool.Install(dir, "./cmd/mutegenerate", outfp, statfp); err != nil {
return log.Error(err)
}
// go generate -v mute/util/release
fmt.Fprintf(statfp, "$ go generate -v ./release\n")
err = gotool.Generate(dir, "./release", outfp, statfp)
if err != nil {
return log.Error(err)
}
// go install -v mute/cmd/...
fmt.Fprintf(statfp, "$ go install -v ./cmd/...\n")
if err := gotool.Install(dir, "./cmd/...", outfp, statfp); err != nil {
return log.Error(err)
}
// go back to master, if necessary
if detached {
fmt.Fprintf(statfp, "$ git checkout master\n")
if err := git.Checkout(dir, "master", outfp, statfp); err != nil {
return log.Error(err)
}
}
fmt.Fprintf(statfp, "Mute updated (restart it, if necessary)\n")
return nil
}