def _collect_actions_existing_dest(self, source, dest):
"""
_collect_actions() helper to collect required actions to perform a stow
command when the destination already exists
"""
if utils.is_same_file(dest, source):
if dest.is_symlink() or self.is_unfolding:
self._are_same_file(source, dest)
else:
self.errors.add(
error.SourceIsSameAsDest(self.subcmd, dest.parent))
elif dest.is_dir() and source.is_dir:
self._are_directories(source, dest)
else:
self.errors.add(
error.ConflictsWithExistingFile(self.subcmd, source, dest))
def should_ignore(self, source):
"""
check if a source should be ignored, based on the ignore patterns in
self.patterns
This checks if the ignore patterns match either the file exactly or
its parents
"""
for pattern in self.patterns:
try:
files = sorted(source.parent.glob(pattern))
except IndexError: # the glob result was empty
continue
for file in files:
if utils.is_same_file(file, source) or source in file.parents:
return True
return False
def should_ignore(self, source):
"""
check if a source should be ignored, based on the ignore patterns in
self.patterns
This checks if the ignore patterns match either the file exactly or
its parents
"""
for pattern in self.patterns:
try:
files = sorted(source.parent.glob(pattern))
except IndexError: # the glob result was empty
continue
for file in files:
if utils.is_same_file(file, source) or source in file.parents:
return True
return False
def _collect_folding_actions(self):
"""
find candidates for folding i.e. when a directory contains symlinks to
files that all share the same parent directory
"""
for parent in self.actions.get_unlink_target_parents():
items = utils.get_directory_contents(parent)
other_links_parents = []
other_links = []
source_parent = None
is_normal_files_detected = False
for item in items:
if item not in self.actions.get_unlink_targets():
does_item_exist = False
try:
does_item_exist = item.exists()
except PermissionError:
self.errors.add(
error.PermissionDenied(self.subcmd, item))
return
if does_item_exist and item.is_symlink():
source_parent = item.resolve().parent
other_links_parents.append(item.resolve().parent)
other_links.append(item)
else:
is_normal_files_detected = True
break
if not is_normal_files_detected:
other_links_parent_count = len(Counter(other_links_parents))
if other_links_parent_count == 1:
assert source_parent is not None
if utils.is_same_files(
utils.get_directory_contents(source_parent),
other_links):
self._fold(source_parent, parent)
elif (other_links_parent_count == 0
and not utils.is_same_file(parent, self.dest_input)):
self.actions.add(
actions.RemoveDirectory(self.subcmd, parent))
def _collect_actions(self, source, dest):
"""
Concrete method to collect required actions to perform a link
sub-command
"""
if dest.exists():
if utils.is_same_file(dest, source):
self.actions.add(
actions.AlreadyLinked(self.subcmd, source, dest))
else:
self.errors.add(
error.ConflictsWithExistingFile(self.subcmd, source, dest))
elif dest.is_symlink():
self.errors.add(
error.ConflictsWithExistingLink(self.subcmd, source, dest))
elif not dest.parent.exists():
self.errors.add(
error.NoSuchDirectoryToSubcmdInto(self.subcmd, dest.parent))
else:
self.actions.add(actions.SymbolicLink(self.subcmd, source, dest))
def _collect_actions(self, source, dest):
"""
Concrete method to collect required actions to perform a link
sub-command
"""
if dest.exists():
if utils.is_same_file(dest, source):
self.actions.add(
actions.AlreadyLinked(self.subcmd, source, dest))
else:
self.errors.add(
error.ConflictsWithExistingFile(self.subcmd, source, dest))
elif dest.is_symlink():
self.errors.add(
error.ConflictsWithExistingLink(self.subcmd, source, dest))
elif not dest.parent.exists():
self.errors.add(
error.NoSuchDirectoryToSubcmdInto(self.subcmd, dest.parent))
else:
self.actions.add(actions.SymbolicLink(self.subcmd, source, dest))