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Add FileIO to make it possible to cache e.g. files from zip files

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Dave Halter
2019-03-25 00:48:59 +01:00
parent e77a67cd36
commit 3e2956264c
4 changed files with 58 additions and 20 deletions
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18
parso/cache.py
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@@ -78,21 +78,26 @@ class _NodeCacheItem(object):
self.change_time = change_time
def load_module(hashed_grammar, path, cache_path=None):
def load_module(hashed_grammar, file_io, cache_path=None):
"""
Returns a module or None, if it fails.
"""
try:
p_time = os.path.getmtime(path)
p_time = file_io.get_last_modified()
except FileNotFoundError:
return None
try:
module_cache_item = parser_cache[hashed_grammar][path]
module_cache_item = parser_cache[hashed_grammar][file_io.path]
if p_time <= module_cache_item.change_time:
return module_cache_item.node
except KeyError:
return _load_from_file_system(hashed_grammar, path, p_time, cache_path=cache_path)
return _load_from_file_system(
hashed_grammar,
file_io.path,
p_time,
cache_path=cache_path
)
def _load_from_file_system(hashed_grammar, path, p_time, cache_path=None):
@@ -123,9 +128,10 @@ def _load_from_file_system(hashed_grammar, path, p_time, cache_path=None):
return module_cache_item.node
def save_module(hashed_grammar, path, module, lines, pickling=True, cache_path=None):
def save_module(hashed_grammar, file_io, module, lines, pickling=True, cache_path=None):
path = file_io.path
try:
p_time = None if path is None else os.path.getmtime(path)
p_time = None if path is None else file_io.get_last_modified()
except OSError:
p_time = None
pickling = False