mopidy/mopidy/utils/path.py
2012-11-01 23:10:18 +01:00

141 lines
4.1 KiB
Python

import logging
import os
import re
# pylint: disable = W0402
import string
# pylint: enable = W0402
import sys
import urllib
import glib
logger = logging.getLogger('mopidy.utils.path')
DATA_PATH = os.path.join(str(glib.get_user_data_dir()), 'mopidy')
SETTINGS_PATH = os.path.join(str(glib.get_user_config_dir()), 'mopidy')
SETTINGS_FILE = os.path.join(SETTINGS_PATH, 'settings.py')
XDG_DIRS = {
'XDG_CACHE_DIR': glib.get_user_cache_dir(),
'XDG_DATA_DIR': glib.get_user_data_dir(),
'XDG_MUSIC_DIR': glib.get_user_special_dir(glib.USER_DIRECTORY_MUSIC),
}
def get_or_create_folder(folder):
folder = os.path.expanduser(folder)
if os.path.isfile(folder):
raise OSError(
u'A file with the same name as the desired dir, '
u'"%s", already exists.' % folder)
elif not os.path.isdir(folder):
logger.info(u'Creating dir %s', folder)
os.makedirs(folder, 0755)
return folder
def get_or_create_file(filename):
filename = os.path.expanduser(filename)
if not os.path.isfile(filename):
logger.info(u'Creating file %s', filename)
open(filename, 'w')
return filename
def path_to_uri(*paths):
path = os.path.join(*paths)
path = path.encode('utf-8')
if sys.platform == 'win32':
return 'file:' + urllib.pathname2url(path)
return 'file://' + urllib.pathname2url(path)
def uri_to_path(uri):
if sys.platform == 'win32':
path = urllib.url2pathname(re.sub('^file:', '', uri))
else:
path = urllib.url2pathname(re.sub('^file://', '', uri))
return path.encode('latin1').decode('utf-8') # Undo double encoding
def split_path(path):
parts = []
while True:
path, part = os.path.split(path)
if part:
parts.insert(0, part)
if not path or path == '/':
break
return parts
def expand_path(path):
path = string.Template(path).safe_substitute(XDG_DIRS)
path = os.path.expanduser(path)
path = os.path.abspath(path)
return path
def find_files(path):
if os.path.isfile(path):
if not isinstance(path, unicode):
path = path.decode('utf-8')
if not os.path.basename(path).startswith('.'):
yield path
else:
for dirpath, dirnames, filenames in os.walk(path):
# Filter out hidden folders by modifying dirnames in place.
for dirname in dirnames:
if dirname.startswith('.'):
dirnames.remove(dirname)
for filename in filenames:
# Skip hidden files.
if filename.startswith('.'):
continue
filename = os.path.join(dirpath, filename)
if not isinstance(filename, unicode):
try:
filename = filename.decode('utf-8')
except UnicodeDecodeError:
filename = filename.decode('latin1')
yield filename
def check_file_path_is_inside_base_dir(file_path, base_path):
assert not file_path.endswith(os.sep), (
'File path %s cannot end with a path separator' % file_path)
# Expand symlinks
real_base_path = os.path.realpath(base_path)
real_file_path = os.path.realpath(file_path)
# Use dir of file for prefix comparision, so we don't accept
# /tmp/foo.m3u as being inside /tmp/foo, simply because they have a
# common prefix, /tmp/foo, which matches the base path, /tmp/foo.
real_dir_path = os.path.dirname(real_file_path)
# Check if dir of file is the base path or a subdir
common_prefix = os.path.commonprefix([real_base_path, real_dir_path])
assert common_prefix == real_base_path, (
'File path %s must be in %s' % (real_file_path, real_base_path))
# FIXME replace with mock usage in tests.
class Mtime(object):
def __init__(self):
self.fake = None
def __call__(self, path):
if self.fake is not None:
return self.fake
return int(os.stat(path).st_mtime)
def set_fake_time(self, time):
self.fake = time
def undo_fake(self):
self.fake = None
mtime = Mtime()