def _AddToCache( self, path, includes, mtime = None ):
if not mtime:
mtime = GetModificationTime( path )
# mtime of 0 is "a magic value" to represent inaccessible directory mtime.
if mtime:
with self._cache_lock:
self._cache[ path ] = { 'mtime': mtime, 'includes': includes }
def _GetCached( self, path, is_framework ):
includes = None
with self._cache_lock:
cache_entry = self._cache.get( path )
if cache_entry:
mtime = GetModificationTime( path )
if mtime > cache_entry[ 'mtime' ]:
includes = self._ListIncludes( path, is_framework )
self._AddToCache( path, includes, mtime )
else:
includes = cache_entry[ 'includes' ]
return includes
def GetCandidatesForDirectory(self, directory):
mtime = GetModificationTime(directory)
try:
candidates = self._candidates_for_directory[directory]
if mtime and mtime <= candidates['mtime']:
return candidates['candidates']
except KeyError:
pass
candidates = _GeneratePathCompletionCandidates(directory)
if mtime:
self._candidates_for_directory[directory] = {
'candidates': candidates,
'mtime': mtime
}
return candidates
def GetCompiledHeadRegexForDirectory(self, directory):
mtime = GetModificationTime(directory)
try:
head_regex = self._head_path_for_directory[directory]
if mtime and mtime <= head_regex['mtime']:
return head_regex['regex']
except KeyError:
pass
current_paths = ListDirectory(directory)
current_paths_pattern = '|'.join(
[re.escape(path) for path in current_paths])
head_pattern = ('(' + self._head_path_pattern + '|' +
current_paths_pattern + ')$')
head_regex = re.compile(head_pattern, re.VERBOSE)
if mtime:
self._head_path_for_directory[directory] = {
'regex': head_regex,
'mtime': mtime
}
return head_regex