Exemplo n.º 1
0
func run(c *exec.Cmd) error {
	r := c.Run()
	if r != nil {
		return fmt.Errorf("%s %s: %s", c.Path, c.Args[0], r)
	}
	return nil
}
Exemplo n.º 2
0
func run(src string) error {
	// Create a temp folder.
	tempDir, err := ioutil.TempDir("", "goexec_")
	if err != nil {
		return err
	}
	defer func() {
		err := os.RemoveAll(tempDir)
		if err != nil {
			fmt.Fprintln(os.Stderr, "warning: error removing temp dir:", err)
		}
	}()

	// Write the source code file.
	tempFile := filepath.Join(tempDir, "gen.go")
	err = ioutil.WriteFile(tempFile, []byte(src), 0600)
	if err != nil {
		return err
	}

	// Compile and run the program.
	var cmd *exec.Cmd
	switch *compilerFlag {
	case "gc":
		cmd = exec.Command("go", "run", tempFile)
	case "gopherjs":
		cmd = exec.Command("gopherjs", "run", tempFile)
	}
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	return cmd.Run()
}
Exemplo n.º 3
0
func verifyCertWithSystem(block *pem.Block, add func(*Certificate)) {
	data := pem.EncodeToMemory(block)
	var cmd *exec.Cmd
	if needsTmpFiles() {
		f, err := ioutil.TempFile("", "cert")
		if err != nil {
			fmt.Fprintf(os.Stderr, "can't create temporary file for cert: %v", err)
			return
		}
		defer os.Remove(f.Name())
		if _, err := f.Write(data); err != nil {
			fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err)
			return
		}
		if err := f.Close(); err != nil {
			fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err)
			return
		}
		cmd = exec.Command("/usr/bin/security", "verify-cert", "-c", f.Name(), "-l")
	} else {
		cmd = exec.Command("/usr/bin/security", "verify-cert", "-c", "/dev/stdin", "-l")
		cmd.Stdin = bytes.NewReader(data)
	}
	if cmd.Run() == nil {
		// Non-zero exit means untrusted
		cert, err := ParseCertificate(block.Bytes)
		if err != nil {
			return
		}

		add(cert)
	}
}
Exemplo n.º 4
0
Arquivo: ipam.go Projeto: NeilW/rkt
// ExecAdd executes IPAM plugin, assuming CNI_COMMAND == ADD.
// Parses and returns resulting IPConfig
func ExecAdd(plugin string, netconf []byte) (*Result, error) {
	if os.Getenv("CNI_COMMAND") != "ADD" {
		return nil, fmt.Errorf("CNI_COMMAND is not ADD")
	}

	pluginPath := Find(plugin)
	if pluginPath == "" {
		return nil, fmt.Errorf("could not find %q plugin", plugin)
	}

	stdout := &bytes.Buffer{}

	c := exec.Cmd{
		Path:   pluginPath,
		Args:   []string{pluginPath},
		Stdin:  bytes.NewBuffer(netconf),
		Stdout: stdout,
		Stderr: os.Stderr,
	}
	if err := c.Run(); err != nil {
		return nil, pluginErr(err, stdout.Bytes())
	}

	res := &Result{}
	err := json.Unmarshal(stdout.Bytes(), res)
	return res, err
}
Exemplo n.º 5
0
// Unmount attempts to unmount the provided FUSE mount point, forcibly
// if necessary.
func Unmount(point string) error {
	fmt.Printf("Unmounting %s...\n", point)

	var cmd *exec.Cmd
	switch runtime.GOOS {
	case "darwin":
		cmd = exec.Command("diskutil", "umount", "force", point)
	case "linux":
		cmd = exec.Command("fusermount", "-u", point)
	default:
		return fmt.Errorf("unmount: unimplemented")
	}

	errc := make(chan error, 1)
	go func() {
		if err := exec.Command("umount", point).Run(); err == nil {
			errc <- err
		}
		// retry to unmount with the fallback cmd
		errc <- cmd.Run()
	}()

	select {
	case <-time.After(1 * time.Second):
		return fmt.Errorf("umount timeout")
	case err := <-errc:
		return err
	}
}
Exemplo n.º 6
0
func (gb GenericBrowser) Open(s string) error {
	u, err := url.Parse(s)
	if err != nil {
		return err
	}

	// Enforce a scheme (windows requires scheme to be set to work properly).
	if u.Scheme != "https" {
		u.Scheme = "http"
	}
	s = u.String()

	// Escape characters not allowed by cmd/bash
	switch runtime.GOOS {
	case "windows":
		s = strings.Replace(s, "&", `^&`, -1)
	}

	var cmd *exec.Cmd
	if gb.Args != nil {
		cmd = exec.Command(gb.Cmd, append(gb.Args, s)...)
	} else {
		cmd = exec.Command(gb.Cmd, s)
	}
	return cmd.Run()
}
Exemplo n.º 7
0
func runCommandWithOutputForDuration(cmd *exec.Cmd, duration time.Duration) (output string, exitCode int, timedOut bool, err error) {
	var outputBuffer bytes.Buffer
	if cmd.Stdout != nil {
		err = errors.New("cmd.Stdout already set")
		return
	}
	cmd.Stdout = &outputBuffer

	if cmd.Stderr != nil {
		err = errors.New("cmd.Stderr already set")
		return
	}
	cmd.Stderr = &outputBuffer

	done := make(chan error)
	go func() {
		exitErr := cmd.Run()
		exitCode = processExitCode(exitErr)
		done <- exitErr
	}()

	select {
	case <-time.After(duration):
		killErr := cmd.Process.Kill()
		if killErr != nil {
			fmt.Printf("failed to kill (pid=%d): %v\n", cmd.Process.Pid, killErr)
		}
		timedOut = true
		break
	case err = <-done:
		break
	}
	output = outputBuffer.String()
	return
}
Exemplo n.º 8
0
func (i *Image) Resize(dst, format string, w, h, q int, optimize bool) error {
	wh := fmt.Sprintf("%dx%d", w, h)
	if w == 0 {
		wh = fmt.Sprintf("x%d", h)
	}
	if h == 0 {
		wh = fmt.Sprintf("%d", w)
	}

	if format == "" {
		format = i.Type
	}

	dstImagick := format + ":" + dst

	var cmd *exec.Cmd
	if q > 0 {
		cmd = exec.Command("convert", i.Filename, "-strip", "-resize", wh, "-quality", fmt.Sprintf("%d", q), dstImagick)
	} else {
		cmd = exec.Command("convert", i.Filename, "-strip", "-resize", wh, dstImagick)
	}
	if err := cmd.Run(); err != nil {
		return err
	}

	i.Width = w
	i.Height = h
	i.Type = format

	if optimize {
		i.optimize(dst)
	}

	return nil
}
Exemplo n.º 9
0
Arquivo: viz.go Projeto: NetSys/quilt
// Graphviz generates a specification for the graphviz program that visualizes the
// communication graph of a stitch.
func graphviz(outputFormat string, slug string, dot string) {
	f, err := util.AppFs.Create(slug + ".dot")
	if err != nil {
		panic(err)
	}
	defer f.Close()
	f.Write([]byte(dot))
	if outputFormat == "graphviz" {
		return
	}
	defer exec.Command("rm", slug+".dot").Run()

	// Dependencies:
	// - easy-graph (install Graph::Easy from cpan)
	// - graphviz (install from your favorite package manager)
	var writeGraph *exec.Cmd
	switch outputFormat {
	case "ascii":
		writeGraph = exec.Command("graph-easy", "--input="+slug+".dot",
			"--as_ascii")
	case "pdf":
		writeGraph = exec.Command("dot", "-Tpdf", "-o", slug+".pdf",
			slug+".dot")
	}
	writeGraph.Stdout = os.Stdout
	writeGraph.Stderr = os.Stderr
	writeGraph.Run()
}
Exemplo n.º 10
0
func (command Command) Run() {
	fmt.Printf("Initializing %s\n", command.Name)

	if command.Before != nil {
		command.Before()
	}

	args := strings.Split(command.Value, " ")

	var cmd *exec.Cmd

	if len(args) > 1 {
		cmd = exec.Command(args[0], args[1:len(args)]...)
	} else {
		cmd = exec.Command(args[0])
	}

	err := cmd.Run()

	if err != nil {
		log.Fatal(err)
	}

	for _, subcommand := range command.SubCommands {
		subcommand.Run()
	}

	fmt.Printf("Finished %s\n", command.Name)
}
Exemplo n.º 11
0
func GetDiff(repoPath, commitid string) (*Diff, error) {
	repo, err := git.OpenRepository(repoPath)
	if err != nil {
		return nil, err
	}

	commit, err := repo.GetCommit(commitid)
	if err != nil {
		return nil, err
	}

	rd, wr := io.Pipe()
	var cmd *exec.Cmd
	// First commit of repository.
	if commit.ParentCount() == 0 {
		cmd = exec.Command("git", "show", commitid)
	} else {
		c, _ := commit.Parent(0)
		cmd = exec.Command("git", "diff", c.Id.String(), commitid)
	}
	cmd.Dir = repoPath
	cmd.Stdout = wr
	cmd.Stdin = os.Stdin
	cmd.Stderr = os.Stderr
	go func() {
		cmd.Run()
		wr.Close()
	}()
	defer rd.Close()
	return ParsePatch(cmd, rd)
}
Exemplo n.º 12
0
func runAndLog(cmd *exec.Cmd) (string, string, error) {
	var stdout, stderr bytes.Buffer

	log.Printf("Executing: %s %v", cmd.Path, cmd.Args[1:])
	cmd.Stdout = &stdout
	cmd.Stderr = &stderr
	err := cmd.Run()

	stdoutString := strings.TrimSpace(stdout.String())
	stderrString := strings.TrimSpace(stderr.String())

	if _, ok := err.(*exec.ExitError); ok {
		message := stderrString
		if message == "" {
			message = stdoutString
		}

		err = fmt.Errorf("VMware error: %s", message)
	}

	log.Printf("stdout: %s", stdoutString)
	log.Printf("stderr: %s", stderrString)

	// Replace these for Windows, we only want to deal with Unix
	// style line endings.
	returnStdout := strings.Replace(stdout.String(), "\r\n", "\n", -1)
	returnStderr := strings.Replace(stderr.String(), "\r\n", "\n", -1)

	return returnStdout, returnStderr, err
}
Exemplo n.º 13
0
// requires dotfile path, home path
func install_vim(dp string, hp string) {
	src1 := filepath.Join(dp, ".vim")
	dst1 := filepath.Join(hp, ".vim")
	symlink(src1, dst1)
	src2 := filepath.Join(dp, ".vimrc")
	dst2 := filepath.Join(hp, ".vimrc")
	symlink(src2, dst2)
	var gitcmd *exec.Cmd

	_, err := os.Lstat(filepath.Join(dp, ".vim", "bundle", "vundle"))
	if err == nil {
		fmt.Printf("Skipping vundle clone because" +
			" .vim/bundle/vundle exists")
		goto vundle_init
	}
	if err.(*os.PathError).Err.Error() != "no such file or directory" {
		panic(fmt.Sprintf("Failed to handle stat of"+
			".vim/bundle/vundle %s.", err))
	}
	gitcmd = exec.Command("git", "clone",
		"https://github.com/gmarik/vundle.git",
		filepath.Join(dp, ".vim/bundle/vundle"))
	err = gitcmd.Run()
	if err != nil {
		panic(fmt.Sprintf("Failed to clone vundle. %s", err))
	}

vundle_init:
	vcmd := exec.Command("vim", "+BundleInstall", "+qall")
	err = vcmd.Run()
	if err != nil {
		panic(fmt.Sprintf("Failed to init vundle. %s", err))
	}
}
Exemplo n.º 14
0
Arquivo: gc.go Projeto: rhvgoyal/rkt
// GC enters the pod by fork/exec()ing the stage1's /gc similar to /init.
// /gc can expect to have its CWD set to the pod root.
// stage1Path is the path of the stage1 rootfs
func GC(pdir string, uuid *types.UUID, stage1Path string, debug bool) error {
	err := unregisterPod(pdir, uuid)
	if err != nil {
		// Probably not worth abandoning the rest
		log.Printf("Warning: could not unregister pod with metadata service: %v", err)
	}

	ep, err := getStage1Entrypoint(pdir, gcEntrypoint)
	if err != nil {
		return fmt.Errorf("error determining gc entrypoint: %v", err)
	}

	args := []string{filepath.Join(stage1Path, ep)}
	if debug {
		args = append(args, "--debug")
	}
	args = append(args, uuid.String())

	c := exec.Cmd{
		Path:   args[0],
		Args:   args,
		Stderr: os.Stderr,
		Dir:    pdir,
	}
	return c.Run()
}
Exemplo n.º 15
0
func run(cmd *exec.Cmd) {
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	if err := cmd.Run(); err != nil {
		log.Fatal(err)
	}
}
Exemplo n.º 16
0
func (srv *HopServer) cleanUp() {
	// Pre Down
	if srv.cfg.Down != "" {
		args := strings.Split(srv.cfg.Down, " ")
		var cmd *exec.Cmd
		if len(args) == 1 {
			cmd = exec.Command(args[0])
		} else {
			cmd = exec.Command(args[0], args[1:]...)
		}
		logger.Info(srv.cfg.Down)
		cmd.Run()
	}

	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
	<-c
	for _, hpeer := range srv.peers {
		srv.toClient(hpeer, HOP_FLG_FIN|HOP_FLG_ACK, []byte{}, false)
		srv.toClient(hpeer, HOP_FLG_FIN|HOP_FLG_ACK, []byte{}, false)
		srv.toClient(hpeer, HOP_FLG_FIN, []byte{}, false)
		srv.toClient(hpeer, HOP_FLG_FIN, []byte{}, false)
	}
	clearMSS(srv.iface.Name(), true)
	os.Exit(0)
}
Exemplo n.º 17
0
func (b *Provider) mountDataset(vol *zfsVolume) error {
	// mount the dataset, snapshots will be readonly
	// 'zfs mount' currently can't perform on snapshots; seealso https://github.com/zfsonlinux/zfs/issues/173
	alreadyMounted, err := isMount(vol.basemount)
	if err != nil {
		return fmt.Errorf("could not mount: %s", err)
	}
	if alreadyMounted {
		return nil
	}
	if err = os.MkdirAll(vol.basemount, 0644); err != nil {
		return fmt.Errorf("could not mount: %s", err)
	}
	var buf bytes.Buffer
	var cmd *exec.Cmd
	if vol.IsSnapshot() {
		cmd = exec.Command("mount", "-tzfs", vol.dataset.Name, vol.basemount)
	} else {
		cmd = exec.Command("zfs", "mount", vol.dataset.Name)
	}
	cmd.Stderr = &buf
	if err := cmd.Run(); err != nil {
		return fmt.Errorf("could not mount: %s (%s)", err, strings.TrimSpace(buf.String()))
	}
	return nil
}
Exemplo n.º 18
0
// GC enters the pod by fork/exec()ing the stage1's /gc similar to /init.
// /gc can expect to have its CWD set to the pod root.
func GC(pdir string, uuid *types.UUID) error {
	err := unregisterPod(pdir, uuid)
	if err != nil {
		// Probably not worth abandoning the rest
		log.PrintE("warning: could not unregister pod with metadata service", err)
	}

	stage1Path := common.Stage1RootfsPath(pdir)

	ep, err := getStage1Entrypoint(pdir, gcEntrypoint)
	if err != nil {
		return errwrap.Wrap(errors.New("error determining 'gc' entrypoint"), err)
	}

	args := []string{filepath.Join(stage1Path, ep)}
	if debugEnabled {
		args = append(args, "--debug")
	}
	args = append(args, uuid.String())

	c := exec.Cmd{
		Path:   args[0],
		Args:   args,
		Stderr: os.Stderr,
		Dir:    pdir,
	}
	return c.Run()
}
Exemplo n.º 19
0
Arquivo: host.go Projeto: katakk/zssh
func (h *Host) Run(command string) error {
	var cmd *exec.Cmd
	if runtime.GOOS == "windows" {
		cmd = exec.Command("cmd", "/c", command)
	} else {
		cmd = exec.Command("sh", "-c", command)
	}

	realWriter := &RealWriter{
		NewLine: true,
		Prefix:  "[" + h.Name + "]: ",
	}
	outWriter := &writer{
		realWriter: realWriter,
		Type:       1,
	}
	errWriter := &writer{
		realWriter: realWriter,
		Type:       2,
	}

	cmd.Stdout = outWriter
	cmd.Stderr = errWriter
	cmd.Stdin = os.Stdin

	err := cmd.Run()
	if err != nil {
		return err
	}

	return nil
}
Exemplo n.º 20
0
// runs dist bootrap to build the compilers for a target platform
func distBootstrap(goRoot string, p Platform) (err error) {
	// the dist tool gets put in the pkg/tool/{host_platform} directory after we've built
	// the compilers/stdlib for the host platform
	hostPlatform := Platform{runtime.GOOS, runtime.GOARCH}
	scriptPath, err := filepath.Abs(filepath.Join(goRoot, "pkg", "tool", hostPlatform.String(), "dist"))
	if err != nil {
		return
	}

	// but we want to run it from the src directory
	scriptDir, err := filepath.Abs(filepath.Join(goRoot, "src"))
	if err != nil {
		return
	}

	bootstrapCmd := exec.Cmd{
		Path: scriptPath,
		Args: []string{scriptPath, "bootstrap", "-v"},
		Env: append(os.Environ(),
			"GOOS="+p.OS,
			"GOARCH="+p.Arch),
		Dir:    scriptDir,
		Stdout: os.Stdout,
		Stderr: os.Stderr,
	}

	return bootstrapCmd.Run()
}
Exemplo n.º 21
0
func (a *AutoInstOptions) install() {
	sfx := ""
	if a.InstallSuffix != "" {
		sfx = a.InstallSuffix
	}
	osArchSfx := osArch + sfx
	if a.Env == nil {
		a.Env = map[string]string{}
	}

	roots := []string{}

	if p := a.Env["GOROOT"]; p != "" {
		roots = append(roots, filepath.Join(p, "pkg", osArchSfx))
	}

	for _, p := range pathList(a.Env["GOPATH"]) {
		roots = append(roots, filepath.Join(p, "pkg", osArchSfx))
	}

	if len(roots) == 0 {
		return
	}

	archiveOk := func(fn string) bool {
		for _, root := range roots {
			_, err := os.Stat(filepath.Join(root, fn))
			if err == nil {
				return true
			}
		}
		return false
	}

	el := envSlice(a.Env)
	installed := []string{}

	for path, fn := range a.imports() {
		if !archiveOk(fn) {
			var cmd *exec.Cmd
			if sfx == "" {
				cmd = exec.Command("go", "install", path)
			} else {
				cmd = exec.Command("go", "install", "-installsuffix", sfx, path)
			}
			cmd.Env = el
			cmd.Stderr = ioutil.Discard
			cmd.Stdout = ioutil.Discard
			cmd.Run()

			if archiveOk(fn) {
				installed = append(installed, path)
			}
		}
	}

	if len(installed) > 0 {
		postMessage("auto-installed: %v", strings.Join(installed, ", "))
	}
}
Exemplo n.º 22
0
func (cat *Catalog) pullCatalog() error {
	log.Debugf("Pulling the catalog %s from the repo to sync any new changes to %s", cat.CatalogID, cat.catalogRoot)

	// git --git-dir=./DATA/value/.git/ --work-tree=./DATA/value/ checkout new_branch
	gitCheckoutCmd := exec.Command("git", "--git-dir="+cat.catalogRoot+"/.git", "--work-tree="+cat.catalogRoot, "checkout", cat.URLBranch)

	out, gitCheckoutErr := gitCheckoutCmd.Output()
	if gitCheckoutErr != nil {
		errorStr := "Git checkout failure from git err: " + gitCheckoutErr.Error()
		log.Error(errorStr)
	}
	log.Debugf("Branch to be worked on : %s\n", out)

	var e *exec.Cmd
	e = exec.Command("git", "-C", cat.catalogRoot, "pull", "-r", "origin", cat.URLBranch)

	err := e.Run()
	if err != nil {
		log.Errorf("Failed to pull the catalog from git repo %s, error: %v", cat.URL, err.Error())
		return err
	}

	log.Debugf("Update submodules of the catalog %s from the repo to sync any new changes to %s", cat.CatalogID, cat.catalogRoot)

	e = exec.Command("git", "-C", cat.catalogRoot, "submodule", "update", "--init", "--recursive")

	err = e.Run()
	if err != nil {
		log.Errorf("Failed to update submodules of the catalog from git repo %s, error: %v", cat.URL, err.Error())
		return err
	}
	cat.LastUpdated = time.Now().Format(time.RFC3339)
	cat.State = "active"
	return nil
}
Exemplo n.º 23
0
// "run" let's the user execute arbitrary commands
func runFn(args []interface{}) (interface{}, error) {
	if len(args) < 1 {
		return nil, errors.New("run takes at least one argument")
	}

	commands := []string{}
	for _, arg := range args {
		if s, ok := arg.(string); ok {
			commands = append(commands, s)
		} else {
			return nil, errors.New("run only takes string arguments")
		}
	}

	var cmd *exec.Cmd
	if len(commands) == 1 {
		cmd = exec.Command(commands[0])
	} else {
		cmd = exec.Command(commands[0], commands[1:]...)
	}
	log.Printf("executing command '%s' with arguments: %s\n", commands[0], strings.Join(commands[1:], ","))

	if err := cmd.Run(); err == nil {
		cmd.Wait()
	}

	return nil, nil
}
Exemplo n.º 24
0
// same as Run(), but the error value returned will contain the entire command line that failed
func run(cmd *exec.Cmd) error {
	err := cmd.Run()
	if err != nil {
		return &commandLineError{*cmd, err}
	}
	return nil
}
Exemplo n.º 25
0
// Configuration reload
func Reload(binary, config, pidfile string) error {

	pid, err := ioutil.ReadFile(pidfile)
	if err != nil {
		return err
	}

	/* 	Setup all the command line parameters so we get an executable similar to
	/usr/local/bin/haproxy -f resources/haproxy_new.cfg -p resources/haproxy-private.pid -st 1234

	*/
	arg0 := "-f"
	arg1 := config
	arg2 := "-p"
	arg3 := pidfile
	arg4 := "-st"
	arg5 := strings.Trim(string(pid), "\n")
	var cmd *exec.Cmd

	// If this is the first run, the PID value will be empty, otherwise it will be > 0
	if len(arg5) > 0 {
		cmd = exec.Command(binary, arg0, arg1, arg2, arg3, arg4, arg5)
	} else {
		cmd = exec.Command(binary, arg0, arg1, arg2, arg3)
	}
	var out bytes.Buffer
	cmd.Stdout = &out
	cmdErr := cmd.Run()
	if cmdErr != nil {
		fmt.Println(cmdErr.Error())
		return cmdErr
	}
	log.Info("HaproxyReload: " + out.String() + string(pid))
	return nil
}
func StopPgpool(w rest.ResponseWriter, r *rest.Request) {
	logit.Info.Println("StopPgpool called")
	response := StopPgpoolResponse{}
	req := StopPgpoolRequest{}
	err := r.DecodeJsonPayload(&req)
	if err != nil {
		logit.Error.Println(err.Error())
		rest.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	var cmd *exec.Cmd
	cmd = exec.Command("stop-pgpool.sh", req.Path)
	var out bytes.Buffer
	var stderr bytes.Buffer
	cmd.Stdout = &out
	cmd.Stderr = &stderr
	err = cmd.Run()
	if err != nil {
		logit.Error.Println(err.Error())
		rest.Error(w, err.Error(), 400)
		return
	}

	response.Output = out.String()
	response.Status = "OK"

	w.WriteJson(&response)
}
Exemplo n.º 27
0
func (spec SpecPackage) checkPackage(defaults PlatformDefaults) (err error) {
	var cmd *exec.Cmd

	switch spec.Type {
	case "rpm":
		rpm, err := exec.LookPath("rpm")
		if err != nil {
			return err
		}
		cmd = exec.Command(rpm, "-q", spec.Name)
	case "dpkg":
		dpkg, err := exec.LookPath("dpkg")
		if err != nil {
			return err
		}
		cmd = exec.Command(dpkg, "-L", spec.Name)
	case "pacman":
		// TODO
	case "ebuild":
		// TODO
	case "homebrew":
		cmd = exec.Command("/usr/local/bin/brew", "ls", spec.Name)
	case "gem":
		cmd = exec.Command("/bin/bash", "-ic", "gem contents "+spec.Name)
	default:
		return errors.New("Unknown package manager type " + spec.Type)
	}

	err = cmd.Run()
	if err != nil && !spec.Absent {
		return err
	} else {
		return nil
	}
}
Exemplo n.º 28
0
// dividedOutput runs the command and returns its standard output and standard error.
func dividedOutput(c *exec.Cmd) (stdout []byte, stderr []byte, err error) {
	var outb, errb bytes.Buffer
	c.Stdout = &outb
	c.Stderr = &errb
	err = c.Run()
	return outb.Bytes(), errb.Bytes(), err
}
Exemplo n.º 29
0
// ForceUnmount attempts to forcibly unmount a given mount.
// It does so by calling diskutil or fusermount directly.
func ForceUnmount(m Mount) error {
	point := m.MountPoint()
	log.Warningf("Force-Unmounting %s...", point)

	var cmd *exec.Cmd
	switch runtime.GOOS {
	case "darwin":
		cmd = exec.Command("diskutil", "umount", "force", point)
	case "linux":
		cmd = exec.Command("fusermount", "-u", point)
	default:
		return fmt.Errorf("unmount: unimplemented")
	}

	errc := make(chan error, 1)
	go func() {
		defer close(errc)

		// try vanilla unmount first.
		if err := exec.Command("umount", point).Run(); err == nil {
			return
		}

		// retry to unmount with the fallback cmd
		errc <- cmd.Run()
	}()

	select {
	case <-time.After(7 * time.Second):
		return fmt.Errorf("umount timeout")
	case err := <-errc:
		return err
	}
}
Exemplo n.º 30
0
func runCmdWithStdIo(cmd exec.Cmd) error {
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr

	return cmd.Run()
}