a6ae14e223
... One for running to generate the coverage data, another to parse the data into various formats. NOTRY=true BUG=skia:2430 Review URL: https://codereview.chromium.org/1239963002
64 lines
1.6 KiB
Python
Executable File
64 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Run the given command through LLVM's coverage tools."""
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import argparse
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import os
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import subprocess
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BUILDTYPE = 'Coverage'
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PROFILE_DATA = 'default.profraw'
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PROFILE_DATA_MERGED = 'prof_merged'
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SKIA_OUT = 'SKIA_OUT'
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def _get_out_dir():
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"""Determine the location for compiled binaries."""
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return os.path.join(os.environ.get(SKIA_OUT, os.path.realpath('out')),
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BUILDTYPE)
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def run_coverage(cmd):
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"""Run the given command and return per-file coverage data.
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Assumes that the binary has been built using llvm_coverage_build and that
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LLVM 3.6 or newer is installed.
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"""
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binary_path = os.path.join(_get_out_dir(), cmd[0])
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subprocess.call([binary_path] + cmd[1:])
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try:
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subprocess.check_call(
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['llvm-profdata', 'merge', PROFILE_DATA,
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'-output=%s' % PROFILE_DATA_MERGED])
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finally:
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os.remove(PROFILE_DATA)
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try:
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return subprocess.check_output(['llvm-cov', 'show', '-no-colors',
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'-instr-profile', PROFILE_DATA_MERGED,
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binary_path])
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finally:
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os.remove(PROFILE_DATA_MERGED)
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def main():
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"""Run coverage and generate a report."""
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# Parse args.
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parser = argparse.ArgumentParser()
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parser.add_argument('--outResultsFile')
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args, cmd = parser.parse_known_args()
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# Run coverage.
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report = run_coverage(cmd)
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with open(args.outResultsFile, 'w') as f:
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f.write(report)
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if __name__ == '__main__':
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main()
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