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author | 2017-11-24 13:54:26 +0100 | |
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committer | 2017-11-24 13:54:26 +0100 | |
commit | 920a49cfa055733d575282973e23558c33087a4a (patch) | |
tree | d371dab34efa5028600dad2e7ca58063626e7ba4 /keystone-moon/keystone/openstack/common/fileutils.py | |
parent | ef3eefca70d8abb4a00dafb9419ad32738e934b2 (diff) |
remove keystone-moon
Change-Id: I80d7c9b669f19d5f6607e162de8e0e55c2f80fdd
Signed-off-by: RHE <rebirthmonkey@gmail.com>
Diffstat (limited to 'keystone-moon/keystone/openstack/common/fileutils.py')
-rw-r--r-- | keystone-moon/keystone/openstack/common/fileutils.py | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/keystone-moon/keystone/openstack/common/fileutils.py b/keystone-moon/keystone/openstack/common/fileutils.py deleted file mode 100644 index 9097c35d..00000000 --- a/keystone-moon/keystone/openstack/common/fileutils.py +++ /dev/null @@ -1,149 +0,0 @@ -# Copyright 2011 OpenStack Foundation. -# All Rights Reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); you may -# not use this file except in compliance with the License. You may obtain -# a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -# License for the specific language governing permissions and limitations -# under the License. - -import contextlib -import errno -import logging -import os -import stat -import tempfile - -from oslo_utils import excutils - -LOG = logging.getLogger(__name__) - -_FILE_CACHE = {} -DEFAULT_MODE = stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO - - -def ensure_tree(path, mode=DEFAULT_MODE): - """Create a directory (and any ancestor directories required) - - :param path: Directory to create - :param mode: Directory creation permissions - """ - try: - os.makedirs(path, mode) - except OSError as exc: - if exc.errno == errno.EEXIST: - if not os.path.isdir(path): - raise - else: - raise - - -def read_cached_file(filename, force_reload=False): - """Read from a file if it has been modified. - - :param force_reload: Whether to reload the file. - :returns: A tuple with a boolean specifying if the data is fresh - or not. - """ - global _FILE_CACHE - - if force_reload: - delete_cached_file(filename) - - reloaded = False - mtime = os.path.getmtime(filename) - cache_info = _FILE_CACHE.setdefault(filename, {}) - - if not cache_info or mtime > cache_info.get('mtime', 0): - LOG.debug("Reloading cached file %s" % filename) - with open(filename) as fap: - cache_info['data'] = fap.read() - cache_info['mtime'] = mtime - reloaded = True - return (reloaded, cache_info['data']) - - -def delete_cached_file(filename): - """Delete cached file if present. - - :param filename: filename to delete - """ - global _FILE_CACHE - - if filename in _FILE_CACHE: - del _FILE_CACHE[filename] - - -def delete_if_exists(path, remove=os.unlink): - """Delete a file, but ignore file not found error. - - :param path: File to delete - :param remove: Optional function to remove passed path - """ - - try: - remove(path) - except OSError as e: - if e.errno != errno.ENOENT: - raise - - -@contextlib.contextmanager -def remove_path_on_error(path, remove=delete_if_exists): - """Protect code that wants to operate on PATH atomically. - Any exception will cause PATH to be removed. - - :param path: File to work with - :param remove: Optional function to remove passed path - """ - - try: - yield - except Exception: - with excutils.save_and_reraise_exception(): - remove(path) - - -def file_open(*args, **kwargs): - """Open file - - see built-in open() documentation for more details - - Note: The reason this is kept in a separate module is to easily - be able to provide a stub module that doesn't alter system - state at all (for unit tests) - """ - return open(*args, **kwargs) - - -def write_to_tempfile(content, path=None, suffix='', prefix='tmp'): - """Create temporary file or use existing file. - - This util is needed for creating temporary file with - specified content, suffix and prefix. If path is not None, - it will be used for writing content. If the path doesn't - exist it'll be created. - - :param content: content for temporary file. - :param path: same as parameter 'dir' for mkstemp - :param suffix: same as parameter 'suffix' for mkstemp - :param prefix: same as parameter 'prefix' for mkstemp - - For example: it can be used in database tests for creating - configuration files. - """ - if path: - ensure_tree(path) - - (fd, path) = tempfile.mkstemp(suffix=suffix, dir=path, prefix=prefix) - try: - os.write(fd, content) - finally: - os.close(fd) - return path |