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 here = os.path.dirname(os.path.realpath(__file__))
  13 topsrcdir = os.path.join(here, os.pardir, os.pardir)
  14
  15
  16 def run_process(cmd):
  17     proc = subprocess.Popen(cmd)
  18
  19     # ignore SIGINT, the mozlint subprocess should exit quickly and gracefully
  20     orig_handler = signal.signal(signal.SIGINT, signal.SIG_IGN)
  21     proc.wait()
  22     signal.signal(signal.SIGINT, orig_handler)
  23     return proc.returncode
  24
  25
  26 def run_mozlint(hooktype, args):
  27     if isinstance(hooktype, bytes):
  28         hooktype = hooktype.decode("UTF-8", "replace")
  29
  30     python = find_executable("python3")
  31     if not python:
  32         print("error: Python 3 not detected on your system! Please install it.")
  33         sys.exit(1)
  34
  35     cmd = [python, os.path.join(topsrcdir, "mach"), "lint"]
  36
  37     if "commit" in hooktype:
  38         # don't prevent commits, just display the lint results
  39         run_process(cmd + ["--workdir=staged"])
  40         return False
  41     elif "push" in hooktype:
  42         return run_process(cmd + ["--outgoing"] + args)
  43
  44     print("warning: '{}' is not a valid mozlint hooktype".format(hooktype))
  45     return False
  46
  47
  48 def hg(ui, repo, **kwargs):
  49     hooktype = kwargs["hooktype"]
  50     return run_mozlint(hooktype, kwargs.get("pats", []))
  51
  52
  53 def git():
  54     hooktype = os.path.basename(__file__)
  55     if hooktype == "hooks.py":
  56         hooktype = "pre-push"
  57     return run_mozlint(hooktype, [])
  58
  59
  60 if __name__ == "__main__":
  61     sys.exit(git())