diff options
Diffstat (limited to 'stevedore/_cache.py')
| -rw-r--r-- | stevedore/_cache.py | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/stevedore/_cache.py b/stevedore/_cache.py index 28a45fa..dfba178 100644 --- a/stevedore/_cache.py +++ b/stevedore/_cache.py @@ -136,6 +136,14 @@ class Cache: cache_dir = _get_cache_dir() self._dir = cache_dir self._internal = {} + self._disable_caching = False + + # Caching can be disabled by either placing .disable file into the + # target directory or when python executable is under /tmp (this is the + # case when executed from ansible) + if any([os.path.isfile(os.path.join(self._dir, '.disable')), + sys.executable[0:4] == '/tmp']): + self._disable_caching = True def _get_data_for_path(self, path): if path is None: @@ -154,14 +162,15 @@ class Cache: except (IOError, json.JSONDecodeError): data = _build_cacheable_data(path) data['path_values'] = path_values - try: - log.debug('writing to %s', filename) - os.makedirs(self._dir, exist_ok=True) - with open(filename, 'w') as f: - json.dump(data, f) - except (IOError, OSError): - # Could not create cache dir or write file. - pass + if not self._disable_caching: + try: + log.debug('writing to %s', filename) + os.makedirs(self._dir, exist_ok=True) + with open(filename, 'w') as f: + json.dump(data, f) + except (IOError, OSError): + # Could not create cache dir or write file. + pass self._internal[internal_key] = data return data |