def _FindDBForFile(self, path):
file_dir = os.path.dirname(path)
for folder in PathsToAllParentFolders(file_dir):
# Note: this name is not part of the standard, but CMake outputs the DB
# and calls it this. Consider using other known filenames once they exist
# for swift.
db_file_name = 'compile_commands.json'
absolute_db_path = folder + '/' + db_file_name
if not os.path.isfile(absolute_db_path):
continue
with self._db_lock:
cached_db = self._dbs_by_folder.get(folder)
# If there is a cached DB, and it's is still up to date then use it
incoming_hash = CompilationDatabaseHash(absolute_db_path)
if cached_db and incoming_hash == cached_db.DBHash():
# DB CacheHit
return cached_db
db = CompilationDatabase()
db.Load(absolute_db_path)
with self._db_lock:
self._dbs_by_folder[folder] = db
return db
logging.debug("No DB For File: " + path)
return None
def FindCompilationDatabase( self, file_dir ):
# We search up the directory hierarchy, to first see if we have a
# compilation database already for that path, or if a compile_commands.json
# file exists in that directory.
for folder in PathsToAllParentFolders( file_dir ):
# Try/catch to syncronise access to cache
try:
database = self.compilation_database_dir_map[ folder ]
if database:
return database
raise NoCompilationDatabase
except KeyError:
pass
compile_commands = os.path.join( folder, 'compile_commands.json' )
if os.path.exists( compile_commands ):
database = ycm_core.CompilationDatabase( folder )
if database.DatabaseSuccessfullyLoaded():
self.compilation_database_dir_map[ folder ] = database
return database
# Nothing was found. No compilation flags are available.
# Note: we cache the fact that none was found for this folder to speed up
# subsequent searches.
self.compilation_database_dir_map[ file_dir ] = None
raise NoCompilationDatabase
def _ExtraConfModuleSourceFilesForFile(filename):
"""For a given filename, search all parent folders for YCM_EXTRA_CONF_FILENAME
files that will compute the flags necessary to compile the file.
If _GlobalYcmExtraConfFileLocation() exists it is returned as a fallback."""
for folder in PathsToAllParentFolders(filename):
candidate = os.path.join(folder, YCM_EXTRA_CONF_FILENAME)
if os.path.exists(candidate):
yield candidate
global_ycm_extra_conf = _GlobalYcmExtraConfFileLocation()
if (global_ycm_extra_conf and os.path.exists(global_ycm_extra_conf)):
yield global_ycm_extra_conf
def _ExtraConfModuleSourceFilesForFile(filename):
"""For a given filename, search all parent folders for YCM_EXTRA_CONF_FILENAME
files that will compute the flags necessary to compile the file.
If _GlobalYcmExtraConfFileLocation() exists it is returned as a fallback.
Otherwise, we return the "default" extra_conf file. This file applies
best-efforts to generate flags according to a series of heuristics (such as
looking for a compilation database)"""
for folder in PathsToAllParentFolders(filename):
candidate = os.path.join(folder, YCM_EXTRA_CONF_FILENAME)
if os.path.exists(candidate):
yield candidate
global_ycm_extra_conf = _GlobalYcmExtraConfFileLocation()
if (global_ycm_extra_conf and os.path.exists(global_ycm_extra_conf)):
yield global_ycm_extra_conf
yield YCMD_DEFAULT_EXTRA_CONF_PATH
def CompilationDatabaseExists(file_dir):
for folder in PathsToAllParentFolders(file_dir):
if os.path.exists(os.path.join(folder, 'compile_commands.json')):
return True
return False
def ProjectRoot(path):
for dir in PathsToAllParentFolders(path):
if os.path.isfile(os.path.join(dir, 'engine.cfg')):
return dir