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Issue 2798233002:
Share logic for generating compile DB with run_tool.py (Closed)
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| 1 #!/usr/bin/env python | |
| 2 # Copyright 2014 The Chromium Authors. All rights reserved. | |
| 3 # Use of this source code is governed by a BSD-style license that can be | |
| 4 # found in the LICENSE file. | |
| 5 | |
| 6 """ | |
| 7 Clang tools on Windows are still a bit busted. The tooling can't handle | |
| 8 backslashes in paths, doesn't understand how to read .rsp files, etc. In | |
| 9 addition, ninja generates compile commands prefixed with the ninja msvc helper, | |
| 10 which also confuses clang. This script generates a compile DB that should mostly | |
| 11 work until clang tooling can be improved upstream. | |
| 12 """ | |
| 13 | |
| 14 import argparse | |
| 15 import os | |
| 16 import re | |
| 17 import json | |
| 18 import shlex | |
| 19 import subprocess | |
| 20 import sys | |
| 21 | |
| 22 | |
| 23 _NINJA_MSVC_WRAPPER = re.compile('ninja -t msvc -e .+? -- ') | |
|
dcheng
2017/04/06 05:48:56
It looks like ninja doesn't emit this wrapper anym
| |
| 24 _RSP_RE = re.compile(r' (@(.+?\.rsp)) ') | |
| 25 | |
| 26 | |
| 27 def _ProcessEntry(e): | |
| 28 # Strip off the ninja -t msvc wrapper. | |
| 29 e['command'] = _NINJA_MSVC_WRAPPER.sub('', e['command']) | |
| 30 | |
| 31 # Prepend --driver-mode=cl to the command's arguments. | |
| 32 # Escape backslashes so shlex doesn't try to interpret them. | |
| 33 escaped_command = e['command'].replace('\\', '\\\\') | |
| 34 split_command = shlex.split(escaped_command) | |
| 35 e['command'] = ' '.join( | |
| 36 split_command[:1] + ['--driver-mode=cl'] + split_command[1:]) | |
| 37 | |
| 38 # Expand the contents of the response file, if any. | |
| 39 # http://llvm.org/bugs/show_bug.cgi?id=21634 | |
| 40 try: | |
| 41 match = _RSP_RE.search(e['command']) | |
| 42 rsp_path = os.path.join(e['directory'], match.group(2)) | |
| 43 rsp_contents = file(rsp_path).read() | |
| 44 e['command'] = ''.join([ | |
| 45 e['command'][:match.start(1)], | |
| 46 rsp_contents, | |
| 47 e['command'][match.end(1):]]) | |
| 48 except IOError: | |
| 49 pass | |
| 50 | |
| 51 return e | |
| 52 | |
| 53 | |
| 54 def main(argv): | |
| 55 # Parse argument | |
| 56 parser = argparse.ArgumentParser() | |
| 57 parser.add_argument( | |
| 58 'build_path', | |
| 59 nargs='?', | |
| 60 help='Path to build directory', | |
| 61 default='out/Debug') | |
| 62 args = parser.parse_args() | |
| 63 # First, generate the compile database. | |
| 64 print 'Generating compile DB with ninja...' | |
| 65 compile_db_as_json = subprocess.check_output(shlex.split( | |
| 66 'ninja -C %s -t compdb cc cxx objc objcxx' % args.build_path)) | |
| 67 | |
| 68 compile_db = json.loads(compile_db_as_json) | |
| 69 print 'Read in %d entries from the compile db' % len(compile_db) | |
| 70 compile_db = [_ProcessEntry(e) for e in compile_db] | |
| 71 original_length = len(compile_db) | |
| 72 | |
| 73 # Filter out NaCl stuff. The clang tooling chokes on them. | |
| 74 compile_db = [e for e in compile_db if '_nacl.cc.pdb' not in e['command'] | |
| 75 and '_nacl_win64.cc.pdb' not in e['command']] | |
| 76 print 'Filtered out %d entries...' % (original_length - len(compile_db)) | |
| 77 f = file('%s/compile_commands.json' % args.build_path, 'w') | |
| 78 f.write(json.dumps(compile_db, indent=2)) | |
| 79 print 'Done!' | |
| 80 | |
| 81 | |
| 82 if __name__ == '__main__': | |
| 83 sys.exit(main(sys.argv[1:])) | |
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