testing/parse_build_tests_ccov.py

   1 #!/usr/bin/env python
   2 #
   3 # This Source Code Form is subject to the terms of the Mozilla Public
   4 # License, v. 2.0. If a copy of the MPL was not distributed with this
   5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   6
   7 from __future__ import absolute_import
   8 import sys
   9 import os
  10 import pathlib
  11 import shutil
  12 import subprocess
  13 import tempfile
  14 import zipfile
  15 import buildconfig
  16
  17
  18 def main():
  19     if not buildconfig.substs.get("MOZ_CODE_COVERAGE") or not buildconfig.substs.get(
  20         "MOZ_RUST_TESTS"
  21     ):
  22         return
  23
  24     assert (
  25         "GRCOV_PATH" in os.environ
  26     ), "The environment variable GRCOV_PATH should contain a path to grcov"
  27     grcov_path = os.environ["GRCOV_PATH"]
  28     assert os.path.exists(grcov_path), "grcov should exist"
  29
  30     grcov_command = [
  31         grcov_path,
  32         "-t",
  33         "lcov",
  34         "-p",
  35         buildconfig.topsrcdir,
  36         buildconfig.topobjdir,
  37     ]
  38
  39     # We want to ignore system headers in our reports.
  40     if buildconfig.substs["OS_TARGET"] == "WINNT":
  41         # We use WINDOWSSDKDIR to find the directory holding the system headers on Windows.
  42         windows_sdk_dir = None
  43         config_opts = buildconfig.substs["MOZ_CONFIGURE_OPTIONS"].split(" ")
  44         for opt in config_opts:
  45             if opt.startswith("WINDOWSSDKDIR="):
  46                 windows_sdk_dir = opt[len("WINDOWSSDKDIR=") :]
  47                 break
  48
  49         assert (
  50             windows_sdk_dir is not None
  51         ), "WINDOWSSDKDIR should be in MOZ_CONFIGURE_OPTIONS"
  52
  53         ignore_dir_abs = pathlib.Path(windows_sdk_dir).parent
  54
  55         # globs passed to grcov must exist and must be relative to the source directory.
  56         # If it doesn't exist, maybe it has moved and we need to update the paths above.
  57         # If it is no longer relative to the source directory, we no longer need to ignore it and
  58         # this code can be removed.
  59         assert ignore_dir_abs.is_dir(), f"{ignore_dir_abs} is not a directory"
  60         ignore_dir_rel = ignore_dir_abs.relative_to(buildconfig.topsrcdir)
  61
  62         grcov_command += [
  63             "--ignore",
  64             f"{ignore_dir_rel}*",
  65         ]
  66
  67     if buildconfig.substs["OS_TARGET"] == "Linux":
  68         gcc_dir = os.path.join(os.environ["MOZ_FETCHES_DIR"], "gcc")
  69         if "LD_LIBRARY_PATH" in os.environ:
  70             os.environ["LD_LIBRARY_PATH"] = "{}/lib64/:{}".format(
  71                 gcc_dir, os.environ["LD_LIBRARY_PATH"]
  72             )
  73         else:
  74             os.environ["LD_LIBRARY_PATH"] = "{}/lib64/".format(gcc_dir)
  75
  76         os.environ["PATH"] = "{}/bin/:{}".format(gcc_dir, os.environ["PATH"])
  77
  78     grcov_output = subprocess.check_output(grcov_command)
  79
  80     grcov_zip_path = os.path.join(buildconfig.topobjdir, "code-coverage-grcov.zip")
  81     with zipfile.ZipFile(grcov_zip_path, "a", zipfile.ZIP_DEFLATED) as z:
  82         z.writestr("grcov_lcov_output.info", grcov_output)
  83
  84
  85 if __name__ == "__main__":
  86     main()