Esempio n. 1
0
func (s *bashScript) Exec(l logger.Logger, client connection.Client) error {
	sess, err := client.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	stdin, err := sess.StdinPipe()
	if err != nil {
		return errors.Wrap(err, "failed to receive stdin pipe")
	}
	defer stdin.Close()

	fname := fmt.Sprintf("/var/lib/smutje/%s.sh", s.hash)
	cmd := fmt.Sprintf(`bash -c "cat - > %[1]s && bash -l %[1]s"`, fname)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	switch n, err := io.WriteString(stdin, s.Script); {
	case err != nil:
		return errors.Wrap(err, "failed to send script to target")
	case n != len(s.Script):
		return errors.Errorf("expected to send %d bytes, sent %d", len(s.Script), n)
	default:
		stdin.Close()
		return sess.Wait()
	}
}
Esempio n. 2
0
func (a *execJenkinsArtifactCmd) Exec(l logger.Logger, client connection.Client) error {
	sess, err := client.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	l.Printf("downloading file %q from %q", a.Target, a.url)
	setFilePerms := ""
	// TODO is possible to set only one of the both?
	if a.Owner != "" && a.Umask != "" {
		setFilePerms = " && chown " + a.Owner + " %[1]s && chmod " + a.Umask + " %[1]s"
	}

	cmd := fmt.Sprintf(`bash -c "{ dir=$(dirname %[1]s); test -d \${dir} || mkdir -p \${dir}; } && curl -sSL %[2]s -o %[1]s`+setFilePerms+`"`, a.Target, a.url)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	return sess.Wait()
}
Esempio n. 3
0
func (a *execWriteFileCmd) Exec(l logger.Logger, clients connection.Client) error {
	r, err := a.read()
	if err != nil {
		return err
	}
	defer r.Close()

	sess, err := clients.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	stdin, err := sess.StdinPipe()
	if err != nil {
		return errors.Wrap(err, "failed to receive stdin pipe")
	}

	l.Printf("writing file %q", a.Target)
	setFilePerms := ""
	// TODO is possible to set only one of the both?
	if a.Owner != "" && a.Umask != "" {
		setFilePerms = " && chown " + a.Owner + " %[1]s && chmod " + a.Umask + " %[1]s"
	}

	cmd := fmt.Sprintf(`bash -c "{ dir=$(dirname %[1]s); test -d \${dir} || mkdir -p \${dir}; } && cat - > %[1]s`+setFilePerms+`"`, a.Target)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	if _, err := io.Copy(stdin, r); err != nil {
		return errors.Wrap(err, "failed to send script to target")
	}
	stdin.Close()

	// TODO validate all bytes written
	// TODO use compression on the wire

	return sess.Wait()
}