.ycm_extra_conf.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 from __future__ import absolute_import, print_function
   6 import json
   7 import os
   8 import shlex
   9 import subprocess
  10 import sys
  11
  12 old_bytecode = sys.dont_write_bytecode
  13 sys.dont_write_bytecode = True
  14
  15 path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'mach'))
  16
  17 # If mach is not here, we're on the objdir go to the srcdir.
  18 if not os.path.exists(path):
  19     with open(os.path.join(os.path.dirname(__file__), 'mozinfo.json')) as info:
  20         config = json.loads(info.read())
  21     path = os.path.join(config['topsrcdir'], 'mach')
  22
  23 sys.dont_write_bytecode = old_bytecode
  24
  25 def _is_likely_cpp_header(filename):
  26     if not filename.endswith('.h'):
  27         return False
  28
  29     if filename.endswith('Inlines.h') or filename.endswith('-inl.h'):
  30         return True
  31
  32     cpp_file = filename[:-1] + 'cpp'
  33     return os.path.exists(cpp_file)
  34
  35
  36 def Settings(**kwargs):
  37     if kwargs[ 'language' ] == 'cfamily':
  38         return FlagsForFile(kwargs['filename'])
  39     # This is useful for generic language server protocols, like rust-analyzer,
  40     # to discover the right project root instead of guessing based on where the
  41     # closest Cargo.toml is.
  42     return {
  43       'project_directory': '.',
  44     }
  45
  46
  47 def FlagsForFile(filename):
  48     output = subprocess.check_output([path, 'compileflags', filename])
  49     output = output.decode('utf-8')
  50
  51     flag_list = shlex.split(output)
  52
  53     # This flag is added by Fennec for android build and causes ycmd to fail to parse the file.
  54     # Removing this flag is a workaround until ycmd starts to handle this flag properly.
  55     # https://github.com/Valloric/YouCompleteMe/issues/1490
  56     final_flags = [x for x in flag_list if not x.startswith('-march=armv')]
  57
  58     if _is_likely_cpp_header(filename):
  59         final_flags += ["-x", "c++"]
  60
  61     return {
  62         'flags': final_flags,
  63         'do_cache': True
  64     }
  65
  66 if __name__ == '__main__':
  67     print(FlagsForFile(sys.argv[1]))