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# SPDX-License-Identifier: Apache-2.0
# Copyright 2017 The Meson development team
from __future__ import annotations
from mesonbuild import environment, mesonlib
import argparse, re, sys, os, subprocess, pathlib, stat
import typing as T
def coverage(outputs: T.List[str], source_root: str, subproject_root: str, build_root: str, log_dir: str, use_llvm_cov: bool,
gcovr_exe: str, llvm_cov_exe: str) -> int:
outfiles = []
exitcode = 0
if gcovr_exe == '':
gcovr_exe = None
else:
gcovr_exe, gcovr_version = environment.detect_gcovr(gcovr_exe)
if llvm_cov_exe == '' or not mesonlib.exe_exists([llvm_cov_exe, '--version']):
llvm_cov_exe = None
lcov_exe, lcov_version, genhtml_exe = environment.detect_lcov_genhtml()
# load config files for tools if available in the source tree
# - lcov requires manually specifying a per-project config
# - gcovr picks up the per-project config, and also supports filtering files
# so don't exclude subprojects ourselves, if the project has a config,
# because they either don't want that, or should set it themselves
lcovrc = os.path.join(source_root, '.lcovrc')
if os.path.exists(lcovrc):
lcov_config = ['--config-file', lcovrc]
else:
lcov_config = []
if lcov_exe and mesonlib.version_compare(lcov_version, '>=2.0'):
lcov_exe_rc_branch_coverage = ['--rc', 'branch_coverage=1']
else:
lcov_exe_rc_branch_coverage = ['--rc', 'lcov_branch_coverage=1']
gcovr_config = ['-e', re.escape(subproject_root)]
# gcovr >= 4.2 requires a different syntax for out of source builds
if gcovr_exe and mesonlib.version_compare(gcovr_version, '>=4.2'):
gcovr_base_cmd = [gcovr_exe, '-r', source_root, build_root]
# it also started supporting the config file
if os.path.exists(os.path.join(source_root, 'gcovr.cfg')):
gcovr_config = []
else:
gcovr_base_cmd = [gcovr_exe, '-r', build_root]
if use_llvm_cov:
gcov_exe_args = ['--gcov-executable', llvm_cov_exe + ' gcov']
else:
gcov_exe_args = []
if not outputs or 'xml' in outputs:
if gcovr_exe and mesonlib.version_compare(gcovr_version, '>=3.3'):
subprocess.check_call(gcovr_base_cmd + gcovr_config +
['-x',
'-o', os.path.join(log_dir, 'coverage.xml')
] + gcov_exe_args)
outfiles.append(('Xml', pathlib.Path(log_dir, 'coverage.xml')))
elif outputs:
print('gcovr >= 3.3 needed to generate Xml coverage report')
exitcode = 1
if not outputs or 'sonarqube' in outputs:
if gcovr_exe and mesonlib.version_compare(gcovr_version, '>=4.2'):
subprocess.check_call(gcovr_base_cmd + gcovr_config +
['--sonarqube',
'-o', os.path.join(log_dir, 'sonarqube.xml'),
] + gcov_exe_args)
outfiles.append(('Sonarqube', pathlib.Path(log_dir, 'sonarqube.xml')))
elif outputs:
print('gcovr >= 4.2 needed to generate Xml coverage report')
exitcode = 1
if not outputs or 'text' in outputs:
if gcovr_exe and mesonlib.version_compare(gcovr_version, '>=3.3'):
subprocess.check_call(gcovr_base_cmd + gcovr_config +
['-o', os.path.join(log_dir, 'coverage.txt')] +
gcov_exe_args)
outfiles.append(('Text', pathlib.Path(log_dir, 'coverage.txt')))
elif outputs:
print('gcovr >= 3.3 needed to generate text coverage report')
exitcode = 1
if not outputs or 'html' in outputs:
if lcov_exe and genhtml_exe:
htmloutdir = os.path.join(log_dir, 'coveragereport')
covinfo = os.path.join(log_dir, 'coverage.info')
initial_tracefile = covinfo + '.initial'
run_tracefile = covinfo + '.run'
raw_tracefile = covinfo + '.raw'
lcov_subpoject_exclude = []
if os.path.exists(subproject_root):
lcov_subpoject_exclude.append(os.path.join(subproject_root, '*'))
if use_llvm_cov:
# Create a shim to allow using llvm-cov as a gcov tool.
if mesonlib.is_windows():
llvm_cov_shim_path = os.path.join(log_dir, 'llvm-cov.bat')
with open(llvm_cov_shim_path, 'w', encoding='utf-8') as llvm_cov_bat:
llvm_cov_bat.write(f'@"{llvm_cov_exe}" gcov %*')
else:
llvm_cov_shim_path = os.path.join(log_dir, 'llvm-cov.sh')
with open(llvm_cov_shim_path, 'w', encoding='utf-8') as llvm_cov_sh:
llvm_cov_sh.write(f'#!/usr/bin/env sh\nexec "{llvm_cov_exe}" gcov $@')
os.chmod(llvm_cov_shim_path, os.stat(llvm_cov_shim_path).st_mode | stat.S_IEXEC)
gcov_tool_args = ['--gcov-tool', llvm_cov_shim_path]
else:
gcov_tool_args = []
subprocess.check_call([lcov_exe,
'--directory', build_root,
'--capture',
'--initial',
'--output-file',
initial_tracefile] +
lcov_config +
gcov_tool_args)
subprocess.check_call([lcov_exe,
'--directory', build_root,
'--capture',
'--output-file', run_tracefile,
'--no-checksum',
*lcov_exe_rc_branch_coverage] +
lcov_config +
gcov_tool_args)
# Join initial and test results.
subprocess.check_call([lcov_exe,
'-a', initial_tracefile,
'-a', run_tracefile,
*lcov_exe_rc_branch_coverage,
'-o', raw_tracefile] + lcov_config)
# Remove all directories outside the source_root from the covinfo
subprocess.check_call([lcov_exe,
'--extract', raw_tracefile,
os.path.join(source_root, '*'),
*lcov_exe_rc_branch_coverage,
'--output-file', covinfo] + lcov_config)
# Remove all directories inside subproject dir
subprocess.check_call([lcov_exe,
'--remove', covinfo,
*lcov_subpoject_exclude,
*lcov_exe_rc_branch_coverage,
'--ignore-errors', 'unused',
'--output-file', covinfo] + lcov_config)
subprocess.check_call([genhtml_exe,
'--prefix', build_root,
'--prefix', source_root,
'--output-directory', htmloutdir,
'--title', 'Code coverage',
'--legend',
'--show-details',
'--branch-coverage',
covinfo] + lcov_config)
outfiles.append(('Html', pathlib.Path(htmloutdir, 'index.html')))
elif gcovr_exe and mesonlib.version_compare(gcovr_version, '>=3.3'):
htmloutdir = os.path.join(log_dir, 'coveragereport')
if not os.path.isdir(htmloutdir):
os.mkdir(htmloutdir)
subprocess.check_call(gcovr_base_cmd + gcovr_config +
['--html',
'--html-nested',
'--print-summary',
'-o', os.path.join(htmloutdir, 'index.html'),
] + gcov_exe_args)
outfiles.append(('Html', pathlib.Path(htmloutdir, 'index.html')))
elif outputs:
print('lcov/genhtml or gcovr >= 3.3 needed to generate Html coverage report')
exitcode = 1
if not outputs and not outfiles:
print('Need gcovr or lcov/genhtml to generate any coverage reports')
exitcode = 1
if outfiles:
print('')
for (filetype, path) in outfiles:
print(filetype + ' coverage report can be found at', path.as_uri())
return exitcode
def run(args: T.List[str]) -> int:
if not os.path.isfile('build.ninja'):
print('Coverage currently only works with the Ninja backend.')
return 1
parser = argparse.ArgumentParser(description='Generate coverage reports')
parser.add_argument('--text', dest='outputs', action='append_const',
const='text', help='generate Text report')
parser.add_argument('--xml', dest='outputs', action='append_const',
const='xml', help='generate Xml report')
parser.add_argument('--sonarqube', dest='outputs', action='append_const',
const='sonarqube', help='generate Sonarqube Xml report')
parser.add_argument('--html', dest='outputs', action='append_const',
const='html', help='generate Html report')
parser.add_argument('--use-llvm-cov', action='store_true',
help='use llvm-cov')
parser.add_argument('--gcovr', action='store', default='',
help='The gcovr executable to use if specified')
parser.add_argument('--llvm-cov', action='store', default='',
help='The llvm-cov executable to use if specified')
parser.add_argument('source_root')
parser.add_argument('subproject_root')
parser.add_argument('build_root')
parser.add_argument('log_dir')
options = parser.parse_args(args)
return coverage(options.outputs, options.source_root,
options.subproject_root, options.build_root,
options.log_dir, options.use_llvm_cov,
options.gcovr, options.llvm_cov)
if __name__ == '__main__':
sys.exit(run(sys.argv[1:]))
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