.ycm_extra_conf.py revision 289177 
1# Configuration file for YouCompleteMe vim plugin to allow the plugin
2# to determine the compile flags.  This file is based on:
3# https://github.com/Valloric/YouCompleteMe/blob/master/cpp/ycm/.ycm_extra_conf.py
4#
5# This is free and unencumbered software released into the public domain.
6#
7# Anyone is free to copy, modify, publish, use, compile, sell, or
8# distribute this software, either in source code form or as a compiled
9# binary, for any purpose, commercial or non-commercial, and by any
10# means.
11#
12# In jurisdictions that recognize copyright laws, the author or authors
13# of this software dedicate any and all copyright interest in the
14# software to the public domain. We make this dedication for the benefit
15# of the public at large and to the detriment of our heirs and
16# successors. We intend this dedication to be an overt act of
17# relinquishment in perpetuity of all present and future rights to this
18# software under copyright law.
19#
20# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26# OTHER DEALINGS IN THE SOFTWARE.
27#
28# For more information, please refer to <http://unlicense.org/>
29
30import os
31import ycm_core
32from clang_helpers import PrepareClangFlags
33
34compilation_database_folder = os.path.dirname(os.path.realpath(__file__))
35
36if compilation_database_folder:
37  database = ycm_core.CompilationDatabase( compilation_database_folder )
38else:
39  database = None
40
41def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
42  if not working_directory:
43    return flags
44  new_flags = []
45  make_next_absolute = False
46  path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
47  for flag in flags:
48    new_flag = flag
49
50    if make_next_absolute:
51      make_next_absolute = False
52      if not flag.startswith( '/' ):
53        new_flag = os.path.join( working_directory, flag )
54
55    for path_flag in path_flags:
56      if flag == path_flag:
57        make_next_absolute = True
58        break
59
60      if flag.startswith( path_flag ):
61        path = flag[ len( path_flag ): ]
62        new_flag = path_flag + os.path.join( working_directory, path )
63        break
64
65    if new_flag:
66      new_flags.append( new_flag )
67  return new_flags
68
69
70def FlagsForFile( filename ):
71  if database:
72    # Bear in mind that compilation_info.compiler_flags_ does NOT return a
73    # python list, but a "list-like" StringVec object
74    compilation_info = database.GetCompilationInfoForFile( filename )
75    final_flags = PrepareClangFlags(
76        MakeRelativePathsInFlagsAbsolute(
77            compilation_info.compiler_flags_,
78            compilation_info.compiler_working_dir_ ),
79        filename )
80    do_cache = True
81  else:
82    final_flags = [ ]
83    do_cache = False
84
85  return {
86    'flags': final_flags,
87    'do_cache': do_cache
88  }
89