diff options
Diffstat (limited to 'support/lib')
| -rw-r--r-- | support/lib/util.py | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/support/lib/util.py b/support/lib/util.py index bede240..8b65e58 100644 --- a/support/lib/util.py +++ b/support/lib/util.py @@ -1,6 +1,10 @@ import contextlib, subprocess, tempfile, shutil, re, os +class UserError(Exception): + pass + + @contextlib.contextmanager def TemporaryDirectory(): dir = tempfile.mkdtemp() @@ -15,7 +19,8 @@ def command(args): process = subprocess.Popen(args) process.wait() - assert not process.returncode + if process.returncode: + raise UserError('Command failed: {}'.format(' '.join(args))) def bash_escape_string(string): |