-from glob import glob
-from os import path
+# https://github.com/Valloric/ycmd/blob/master/cpp/ycm/.ycm_extra_conf.py
+# https://jonasdevlieghere.com/a-better-youcompleteme-config/
+import os
+import os.path
+import logging
import ycm_core
+BASE_FLAGS = [
+ '-Wall',
+ '-std=c++1z',
+ '-xc++',
+ '-I/usr/lib/'
+ '-I/usr/include/'
+]
-def findCompilationDatabaseFolder(dir='.'):
- dirs = [path.dirname(f) for f in glob(dir + '/**/compile_commands.json',
- recursive=True)]
- return dirs
+SOURCE_EXTENSIONS = [
+ '.cpp',
+ '.cxx',
+ '.cc',
+ '.c',
+ '.m',
+ '.mm'
+]
+HEADER_EXTENSIONS = [
+ '.h',
+ '.hxx',
+ '.hpp',
+ '.hh'
+]
-def generateQtFlags():
- flags = ['-isystem', '/usr/include/qt/']
- for p in glob('/usr/include/qt/*/'):
- flags += ['-isystem', p]
- return flags
+def find_similar_file_in_database(dbpath, filename):
+ import json
+ import Levenshtein
+ logging.info("Trying to find some file close to: " + filename)
+ db = json.load(open(dbpath))
+ best_filename = ''
+ best_distance = 1 << 31
+ for entry in db:
+ entry_filename = os.path.normpath(
+ os.path.join(entry["directory"], entry["file"]))
+ distance = Levenshtein.distance(str(filename), str(entry_filename))
+ if distance < best_distance:
+ best_filename = entry_filename
+ best_distance = distance
+ return best_filename
+def ok_compilation_info(info):
+ return bool(info.compiler_flags_)
-def isHeader(filename):
- ext = path.splitext(filename)[1]
- return ext in ['.hpp', '.h']
-
-
-def GetCompilationInfoForFile(database, filename):
- if isHeader(filename):
- basename = path.splitext(filename)[0]
- for ext in ['.cpp', '.c']:
- cpp_file = basename + ext
- if path.exists(cpp_file):
- compilation_info = database.GetCompilationInfoForFile(
- cpp_file)
- if compilation_info.compiler_flags_:
- return compilation_info
- return None
- return database.GetCompilationInfoForFile(filename)
+def get_compilation_info_for_file(dbpath, database, filename):
+ info = database.GetCompilationInfoForFile(filename)
+ if ok_compilation_info(info):
+ logging.info("Flags for file where found in database: " + filename)
+ return info
+ else:
+ logging.info("Flags for file not found in database: " + filename)
+ basename = os.path.splitext(filename)[0]
+ for extension in SOURCE_EXTENSIONS:
+ replacement_file = basename + extension
+ logging.info("Trying to replace extension with: " + extension)
+ info = database.GetCompilationInfoForFile(replacement_file)
+ if ok_compilation_info(info):
+ logging.info("Replacing header with: " + replacement_file)
+ return info
+ replacement_file = find_similar_file_in_database(dbpath, filename)
+ logging.info("Replacing header with: " + replacement_file)
+ return database.GetCompilationInfoForFile(replacement_file)
+def find_nearest(path, target):
+ candidates = [
+ os.path.join(path, target),
+ os.path.join(path, 'build', target),
+ os.path.join(path, 'output', target),
+ ]
+ for candidate in candidates:
+ if os.path.isfile(candidate) or os.path.isdir(candidate):
+ logging.info("Found nearest " + target + " at " + candidate)
+ return candidate
+ parent = os.path.dirname(os.path.abspath(path))
+ if parent == path:
+ raise RuntimeError("Could not find " + target)
+ return find_nearest(parent, target)
-def FlagsForFile(filename, **kwargs):
- client_data = kwargs['client_data']
- cwd = client_data['getcwd()']
+def make_relative_paths_in_flags_absolute(flags, working_directory):
+ if not working_directory:
+ return list(flags)
+ new_flags = []
+ make_next_absolute = False
+ path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
+ for flag in flags:
+ new_flag = flag
+ if make_next_absolute:
+ make_next_absolute = False
+ if not flag.startswith('/'):
+ new_flag = os.path.join(working_directory, flag)
+ for path_flag in path_flags:
+ if flag == path_flag:
+ make_next_absolute = True
+ break
+ if flag.startswith(path_flag):
+ path = flag[ len(path_flag): ]
+ new_flag = path_flag + os.path.join(working_directory, path)
+ break
+ if new_flag:
+ new_flags.append(new_flag)
+ return new_flags
- extra_flags = [
- '-Wall',
- '-Wextra',
- # '-Wshadow',
- # '-Werror',
- # '-Wc++98-compat',
- # '-Wno-long-long',
- # '-Wno-variadic-macros',
- # '-fexceptions',
- # '-DNDEBUG',
- ]
+def flags_for_clang_complete(root):
+ try:
+ clang_complete_path = find_nearest(root, '.clang_complete')
+ clang_complete_flags = open(clang_complete_path, 'r').read().splitlines()
+ return clang_complete_flags
+ except Exception, err:
+ logging.info("Error while looking flags for .clang_complete in root: " + root)
+ logging.error(err)
+ return None
- folders = findCompilationDatabaseFolder(cwd)
- if not folders:
- folder = None
- else:
- folder = folders[0]
- if len(folders) > 1:
- print("Multiple compilation databases found!")
- print(folders)
- print("Selecting first: %s" % (folder))
+def flags_for_include(root):
+ try:
+ include_path = find_nearest(root, 'include')
+ flags = []
+ for dirroot, dirnames, filenames in os.walk(include_path):
+ for dir_path in dirnames:
+ real_path = os.path.join(dirroot, dir_path)
+ flags = flags + ["-I" + real_path]
+ return flags
+ except Exception, err:
+ logging.info("Error while looking flags for includes in root: " + root)
+ logging.error(err)
+ return None
- if folder:
- database = ycm_core.CompilationDatabase(folder)
- compilation_info = GetCompilationInfoForFile(database, filename)
+def flags_for_compilation_database(root, filename):
+ try:
+ compilation_db_path = find_nearest(root, 'compile_commands.json')
+ compilation_db_dir = os.path.dirname(compilation_db_path)
+ logging.info("Set compilation database directory to " + compilation_db_dir)
+ compilation_db = ycm_core.CompilationDatabase(compilation_db_dir)
+ if not compilation_db:
+ logging.info("Compilation database file found but unable to load")
+ return None
+ compilation_info = get_compilation_info_for_file(
+ compilation_db_path, compilation_db, filename)
if not compilation_info:
+ logging.info("No compilation info for " + filename + " in compilation database")
return None
- flags = list(compilation_info.compiler_flags_)
- else:
- flags = [
- '-std=c++14',
- '-stdlib=libstdc++',
- '-x', 'c++',
- '-isystem', '/usr/include',
- '-isystem', '/usr/local/include',
- '-I', cwd,
- '-I', cwd + '/include',
- ]
- flags += generateQtFlags()
+ return make_relative_paths_in_flags_absolute(
+ compilation_info.compiler_flags_,
+ compilation_info.compiler_working_dir_)
+ except Exception, err:
+ logging.info("Error while trying to get flags for " + filename + " in compilation database")
+ logging.error(err)
+ return None
+def flags_for_file(filename):
+ root = os.path.realpath(filename)
+ compilation_db_flags = flags_for_compilation_database(root, filename)
+ if compilation_db_flags:
+ final_flags = compilation_db_flags
+ else:
+ final_flags = BASE_FLAGS
+ clang_flags = flags_for_clang_complete(root)
+ if clang_flags:
+ final_flags = final_flags + clang_flags
+ include_flags = flags_for_include(root)
+ if include_flags:
+ final_flags = final_flags + include_flags
return {
- 'flags': flags + extra_flags,
+ 'flags': final_flags,
'do_cache': True
}
+
+FlagsForFile = flags_for_file
repos / dotfiles.git / blobdiff