tools/lint/hooks.py

   1 #!/usr/bin/env python
   2 # This Source Code Form is subject to the terms of the Mozilla Public
   3 # License, v. 2.0. If a copy of the MPL was not distributed with this
   4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   5
   6 import os
   7 import signal
   8 import subprocess
   9 import sys
  10 from distutils.spawn import find_executable
  11
  12 import six
  13
  14 here = os.path.dirname(os.path.realpath(__file__))
  15 topsrcdir = os.path.join(here, os.pardir, os.pardir)
  16
  17
  18 def run_process(cmd):
  19     proc = subprocess.Popen(cmd)
  20
  21     # ignore SIGINT, the mozlint subprocess should exit quickly and gracefully
  22     orig_handler = signal.signal(signal.SIGINT, signal.SIG_IGN)
  23     proc.wait()
  24     signal.signal(signal.SIGINT, orig_handler)
  25     return proc.returncode
  26
  27
  28 def run_mozlint(hooktype, args):
  29     if isinstance(hooktype, six.binary_type):
  30         hooktype = hooktype.decode("UTF-8", "replace")
  31
  32     python = find_executable("python3")
  33     if not python:
  34         print("error: Python 3 not detected on your system! Please install it.")
  35         sys.exit(1)
  36
  37     cmd = [python, os.path.join(topsrcdir, "mach"), "lint"]
  38
  39     if "commit" in hooktype:
  40         # don't prevent commits, just display the lint results
  41         run_process(cmd + ["--workdir=staged"])
  42         return False
  43     elif "push" in hooktype:
  44         return run_process(cmd + ["--outgoing"] + args)
  45
  46     print("warning: '{}' is not a valid mozlint hooktype".format(hooktype))
  47     return False
  48
  49
  50 def hg(ui, repo, **kwargs):
  51     hooktype = kwargs["hooktype"]
  52     return run_mozlint(hooktype, kwargs.get("pats", []))
  53
  54
  55 def git():
  56     hooktype = os.path.basename(__file__)
  57     if hooktype == "hooks.py":
  58         hooktype = "pre-push"
  59     return run_mozlint(hooktype, [])
  60
  61
  62 if __name__ == "__main__":
  63     sys.exit(git())