def run_analyzer(args, output_dir):
""" Runs the analyzer against the given compilation database. """
def exclude(filename):
""" Return true when any excluded directory prefix the filename. """
return any(re.match(r'^' + directory, filename)
for directory in args.excludes)
consts = {
'clang': args.clang,
'output_dir': output_dir,
'output_format': args.output_format,
'output_failures': args.output_failures,
'direct_args': analyzer_params(args),
'force_debug': args.force_debug
}
logging.debug('run analyzer against compilation database')
with open(args.cdb, 'r') as handle:
generator = (dict(cmd, **consts)
for cmd in json.load(handle) if not exclude(cmd['file']))
# when verbose output requested execute sequentially
pool = multiprocessing.Pool(1 if args.verbose > 2 else None)
for current in pool.imap_unordered(run, generator):
logging_analyzer_output(current)
pool.close()
pool.join()
def analyze_build_wrapper(**kwargs):
""" Entry point for `analyze-cc` and `analyze-c++` compiler wrappers. """
# don't run analyzer when compilation fails.
if kwargs['result'] or not os.getenv('ANALYZE_BUILD_CLANG'):
return
# don't run analyzer when the command is not a compilation
# (can be preprocessing or a linking only execution of the compiler)
compilation = split_command(kwargs['command'])
if compilation is None:
return
# collect the needed parameters from environment, crash when missing
env = os.environ.copy()
parameters = {
'clang': env['ANALYZE_BUILD_CLANG'],
'output_dir': env['ANALYZE_BUILD_REPORT_DIR'],
'output_format': env['ANALYZE_BUILD_REPORT_FORMAT'],
'output_failures': env.get('ANALYZE_BUILD_REPORT_FAILURES', False),
'direct_args': env.get('ANALYZE_BUILD_PARAMETERS', '').split(' '),
'force_debug': env.get('ANALYZE_BUILD_FORCE_DEBUG', False),
'directory': os.getcwd(),
'command': [kwargs['compiler'], '-c'] + compilation.flags
}
# call static analyzer against the compilation
for source in compilation.files:
current = run(dict(parameters, file=source))
# display error message from the static analyzer
logging_analyzer_output(current)