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#!/usr/bin/env python
import sys
import re
import os
from subprocess import Popen, PIPE
from argparse import ArgumentParser
GENERATED_INCLUDE_RE = re.compile(
r'^\s*#\s*include\s*"([/a-z_0-9.]+\.generated\.h)"(\s+//.*)?$')
def main(argv):
argparser = ArgumentParser()
argparser.add_argument('--generated-includes-dir', action='append',
help='Directory where generated includes are located.')
argparser.add_argument('--file', type=open, help='File to check.')
argparser.add_argument('iwyu_args', nargs='*',
help='IWYU arguments, must go after --.')
args = argparser.parse_args(argv)
with args.file:
include_dirs = []
iwyu = Popen(['include-what-you-use', '-xc'] + args.iwyu_args + ['/dev/stdin'],
stdin=PIPE, stdout=PIPE, stderr=PIPE)
for line in args.file:
match = GENERATED_INCLUDE_RE.match(line)
if match:
for d in args.generated_includes_dir:
try:
f = open(os.path.join(d, match.group(1)))
except IOError:
continue
else:
with f:
for generated_line in f:
iwyu.stdin.write(generated_line)
break
else:
raise IOError('Failed to find {0}'.format(match.group(1)))
else:
iwyu.stdin.write(line)
iwyu.stdin.close()
out = iwyu.stdout.read()
err = iwyu.stderr.read()
ret = iwyu.wait()
if ret != 2:
print('IWYU failed with exit code {0}:'.format(ret))
print('{0} stdout {0}'.format('=' * ((80 - len(' stdout ')) // 2)))
print(out)
print('{0} stderr {0}'.format('=' * ((80 - len(' stderr ')) // 2)))
print(err)
return 1
return 0
if __name__ == '__main__':
raise SystemExit(main(sys.argv[1:]))
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