def cull(self, file_filter=None, attrs=None):
""" Delete ALL data files and remove torrent from client.
@param file_filter: Optional callable for selecting a subset of all files.
The callable gets a file item as described for RtorrentItem._get_files
and must return True for items eligible for deletion.
@param attrs: Optional list of additional attributes to fetch for a filter.
"""
dry_run = 0 # set to 1 for testing
def remove_with_links(path):
"Remove a path including any symlink chains leading to it."
rm_paths = []
while os.path.islink(path):
target = os.readlink(path)
rm_paths.append(path)
path = target
if os.path.exists(path):
rm_paths.append(path)
else:
self._engine.LOG.debug(
"Real path '%s' doesn't exist,"
" but %d symlink(s) leading to it will be deleted..." %
(path, len(rm_paths)))
# Remove the link chain, starting at the real path
# (this prevents losing the chain when there's permission problems)
for rm_path in reversed(rm_paths):
is_dir = os.path.isdir(rm_path) and not os.path.islink(rm_path)
self._engine.LOG.debug("Deleting '%s%s'" %
(rm_path, '/' if is_dir else ''))
if not dry_run:
try:
(os.rmdir if is_dir else os.remove)(rm_path)
except OSError as exc:
if exc.errno == errno.ENOENT:
# Seems this disappeared somehow inbetween (race condition)
self._engine.LOG.info(
"Path '%s%s' disappeared before it could be deleted"
% (rm_path, '/' if is_dir else ''))
else:
raise
return rm_paths
# Assemble doomed files and directories
files, dirs = set(), set()
base_path = os.path.expanduser(self.directory)
item_files = list(self._get_files(attrs=attrs))
if not self.directory:
raise error.EngineError(
"Directory for item #%s is empty,"
" you might want to add a filter 'directory=!'" %
(self._fields["hash"], ))
if not os.path.isabs(base_path):
raise error.EngineError(
"Directory '%s' for item #%s is not absolute, which is a bad idea;"
" fix your .rtorrent.rc, and use 'directory.default.set = /...'"
% (
self.directory,
self._fields["hash"],
))
if self.fetch("=is_multi_file") and os.path.isdir(self.directory):
dirs.add(self.directory)
for item_file in item_files:
if file_filter and not file_filter(item_file):
continue
#print repr(item_file)
path = os.path.join(base_path, item_file.path)
files.add(path)
if '/' in item_file.path:
dirs.add(os.path.dirname(path))
# Delete selected files
if not dry_run:
self.stop()
for path in sorted(files):
##self._engine.LOG.debug("Deleting file '%s'" % (path,))
remove_with_links(path)
# Prune empty directories (longer paths first)
doomed = files | dirs
for path in sorted(dirs, reverse=True):
residue = set(os.listdir(path) if os.path.exists(path) else [])
ignorable = set(i for i in residue if any(
fnmatch.fnmatch(i, pat) for pat in config.waif_pattern_list)
#or os.path.join(path, i) in doomed
)
##print "---", residue - ignorable
if residue and residue != ignorable:
self._engine.LOG.info(
"Keeping non-empty directory '%s' with %d %s%s!" % (
path,
len(residue),
"entry" if len(residue) == 1 else "entries",
(" (%d ignorable)" %
len(ignorable)) if ignorable else "",
))
else:
##print "---", ignorable
for waif in ignorable: # - doomed:
waif = os.path.join(path, waif)
self._engine.LOG.debug("Deleting waif '%s'" % (waif, ))
if not dry_run:
try:
os.remove(waif)
except EnvironmentError as exc:
self._engine.LOG.warn(
"Problem deleting waif '%s' (%s)" %
(waif, exc))
##self._engine.LOG.debug("Deleting empty directory '%s'" % (path,))
doomed.update(remove_with_links(path))
# Delete item from engine
if not dry_run:
self.delete()
path = os.path.join(base_path, item_file.path)
files.add(path)
if '/' in item_file.path:
dirs.add(os.path.dirname(path))
# Delete selected files
if not dry_run:
self.stop()
for path in sorted(files):
##self._engine.LOG.debug("Deleting file '%s'" % (path,))
remove_with_links(path)
# Prune empty directories (longer paths first)
doomed = files | dirs
for path in sorted(dirs, reverse=True):
residue = set(os.listdir(path) if os.path.exists(path) else [])
ignorable = set(i for i in residue
if any(fnmatch.fnmatch(i, pat) for pat in config.waif_pattern_list)
#or os.path.join(path, i) in doomed
)
##print "---", residue - ignorable
if residue and residue != ignorable:
self._engine.LOG.info("Keeping non-empty directory '%s' with %d %s%s!" % (
path, len(residue),
"entry" if len(residue) == 1 else "entries",
(" (%d ignorable)" % len(ignorable)) if ignorable else "",
))
else:
##print "---", ignorable
for waif in ignorable:# - doomed:
waif = os.path.join(path, waif)
path = os.path.join(base_path, item_file.path)
files.add(path)
if '/' in item_file.path:
dirs.add(os.path.dirname(path))
# Delete selected files
if not dry_run:
self.stop()
for path in sorted(files):
##self._engine.LOG.debug("Deleting file '%s'" % (path,))
remove_with_links(path)
# Prune empty directories (longer paths first)
doomed = files | dirs
for path in sorted(dirs, reverse=True):
residue = set(os.listdir(path) if os.path.exists(path) else [])
ignorable = set(i for i in residue if any(
fnmatch.fnmatch(i, pat) for pat in config.waif_pattern_list)
#or os.path.join(path, i) in doomed
)
##print "---", residue - ignorable
if residue and residue != ignorable:
self._engine.LOG.info(
"Keeping non-empty directory '%s' with %d %s%s!" % (
path,
len(residue),
"entry" if len(residue) == 1 else "entries",
(" (%d ignorable)" %
len(ignorable)) if ignorable else "",
))
else: