X-Git-Url: https://git.rmz.io/dotfiles.git/blobdiff_plain/1ce562c61664d2e28a69b869a320513e87fbea76..b51f3563d6cb0010825b2d2b9fe01e687f54345a:/vim/ycm_extra_conf.py diff --git a/vim/ycm_extra_conf.py b/vim/ycm_extra_conf.py index 0e3b5da..2bd7b4e 100644 --- a/vim/ycm_extra_conf.py +++ b/vim/ycm_extra_conf.py @@ -1,63 +1,215 @@ +# https://github.com/Valloric/ycmd/blob/master/cpp/ycm/.ycm_extra_conf.py +# https://jonasdevlieghere.com/a-better-youcompleteme-config/ +# https://github.com/arximboldi/dotfiles/blob/master/emacs/.ycm_extra_conf.py + import os +import os.path +from glob import glob +import logging +import ycm_core +import difflib +BASE_FLAGS = [ + '-Wall', + '-std=c++1z', + '-x', 'c++', + '-isystem', '/usr/include', + '-isystem', '/usr/local/include', +] -def FlagsForFile(filename, **kwargs): - client_data = kwargs['client_data'] - cwd = client_data['getcwd()'] - - flags = [ - '-Wall', - # '-Wextra', - # '-Wshadow', - # '-Werror', - # '-Wc++98-compat', - # '-Wno-long-long', - # '-Wno-variadic-macros', - # '-fexceptions', - # '-DNDEBUG', - '-std=c++11', - '-stdlib=libstdc++', - '-x', 'c++', - '-I', '.', - '-I', './include', - ] - relative_to = cwd - final_flags = MakeRelativePathsInFlagsAbsolute(flags, relative_to) +EXTRA_FLAGS = [ + '-Wall', + '-Wextra', + # '-Wshadow', + # '-Werror', + # '-Wc++98-compat', + # '-Wno-long-long', + # '-Wno-variadic-macros', + # '-fexceptions', + # '-DNDEBUG', +] - return { - 'flags': final_flags, - 'do_cache': True - } +SOURCE_EXTENSIONS = [ + '.cpp', + '.cxx', + '.cc', + '.c', + '.m', + '.mm' +] + +HEADER_EXTENSIONS = [ + '.h', + '.hxx', + '.hpp', + '.hh' +] + + +def similarity_ratio(s, t): + return difflib.SequenceMatcher(a=s.lower(), b=t.lower()).ratio() + + +def generate_qt_flags(): + 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 + logging.info("Trying to find some file close to: " + filename) + db = json.load(open(dbpath)) + best_filename = '' + best_ratio = 0 + for entry in db: + entry_filename = os.path.normpath(os.path.join(entry["directory"], + entry["file"])) + ratio = similarity_ratio(str(filename), str(entry_filename)) + if ratio > best_ratio: + best_filename = entry_filename + best_ratio = ratio + return best_filename + +def ok_compilation_info(info): + return bool(info.compiler_flags_) + +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_compilation_database(root='.'): + dirs = glob(root + '/*/compile_commands.json', recursive=True) + + if len(dirs) == 1: + return dirs[0] + elif len(dirs) > 1: + logging.info("Multiple compilation databases found!") + logging.info(dirs) + logging.info("Selecting first: %s" % (dir)) + return dirs[0] + parent = os.path.dirname(os.path.abspath(root)) + if parent == root: + raise RuntimeError("Could not find compile_commands.json") + return find_nearest_compilation_database(parent) -def DirectoryOfThisScript(): - return os.path.dirname(os.path.abspath(__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 MakeRelativePathsInFlagsAbsolute(flags, working_directory): +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='] + 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):] + 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 + + +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 as err: + logging.info("Error while looking flags for includes in root: " + root) + logging.error(err) + return None + + +def flags_for_compilation_database(root, filename): + try: + compilation_db_path = find_nearest_compilation_database(root) + 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 + return make_relative_paths_in_flags_absolute( + compilation_info.compiler_flags_, + compilation_info.compiler_working_dir_) + except Exception as err: + logging.info("Error while trying to get flags for " + filename + " in compilation database") + logging.error(err) + return None + + +def FlagsForFile(filename, **kwargs): + client_data = kwargs['client_data'] + root = client_data['getcwd()'] + + compilation_db_flags = flags_for_compilation_database(root, filename) + if compilation_db_flags: + final_flags = compilation_db_flags + else: + final_flags = BASE_FLAGS + include_flags = flags_for_include(root) + if include_flags: + final_flags = final_flags + include_flags + + final_flags += generate_qt_flags() + final_flags += [ + '-I', root, + '-I', root + '/include', + ] + return { + 'flags': final_flags + EXTRA_FLAGS, + 'do_cache': True + }