.gitlab-ci.d/check-patch.py

   1 #!/usr/bin/env python3
   2 #
   3 # check-patch.py: run checkpatch.pl across all commits in a branch
   4 #
   5 # Copyright (C) 2020 Red Hat, Inc.
   6 #
   7 # SPDX-License-Identifier: GPL-2.0-or-later
   8
   9 import os
  10 import os.path
  11 import sys
  12 import subprocess
  13
  14 namespace = "qemu-project"
  15 if len(sys.argv) >= 2:
  16     namespace = sys.argv[1]
  17
  18 cwd = os.getcwd()
  19 reponame = os.path.basename(cwd)
  20 repourl = "https://gitlab.com/%s/%s.git" % (namespace, reponame)
  21
  22 # GitLab CI environment does not give us any direct info about the
  23 # base for the user's branch. We thus need to figure out a common
  24 # ancestor between the user's branch and current git master.
  25 subprocess.check_call(["git", "remote", "add", "check-patch", repourl])
  26 subprocess.check_call(["git", "fetch", "check-patch", "master"],
  27                       stdout=subprocess.DEVNULL,
  28                       stderr=subprocess.DEVNULL)
  29
  30 ancestor = subprocess.check_output(["git", "merge-base",
  31                                     "check-patch/master", "HEAD"],
  32                                    universal_newlines=True)
  33
  34 ancestor = ancestor.strip()
  35
  36 log = subprocess.check_output(["git", "log", "--format=%H %s",
  37                                ancestor + "..."],
  38                               universal_newlines=True)
  39
  40 subprocess.check_call(["git", "remote", "rm", "check-patch"])
  41
  42 if log == "":
  43     print("\nNo commits since %s, skipping checks\n" % ancestor)
  44     sys.exit(0)
  45
  46 errors = False
  47
  48 print("\nChecking all commits since %s...\n" % ancestor, flush=True)
  49
  50 ret = subprocess.run(["scripts/checkpatch.pl", "--terse", ancestor + "..."])
  51
  52 if ret.returncode != 0:
  53     print("    ❌ FAIL one or more commits failed scripts/checkpatch.pl")
  54     sys.exit(1)
  55
  56 sys.exit(0)