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Code Issues Releases Wiki Activity

link variable extraction without normpath

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This commit is contained in:
Matt Richards 2021-02-15 21:05:20 +10:00
parent 25f8b7e778
commit da0d498d22
1 changed files with 31 additions and 21 deletions
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52
dotbot/plugins/link.py
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@ -155,7 +155,7 @@ class Link(dotbot.Plugin):
def _exists(self, path):
'''
Returns true if the path exists.
Returns true if the path exists. Returns false if contains dangling symbolic links.
'''
path = os.path.expanduser(path)
return os.path.exists(path)
@ -210,51 +210,61 @@ class Link(dotbot.Plugin):
destination_dir = os.path.dirname(destination)
return os.path.relpath(source, destination_dir)
def _link(self, source, link_name, relative, canonical_path, ignore_missing):
def _link(self, dotfile_source, target_path_to_link_at, relative, canonical_path, ignore_missing):
'''
Links link_name to source.
:param target_path_to_link_at is the file path where we are putting a symlink back to
dotfile_source
Returns true if successfully linked files.
'''
success = False
destination = os.path.expanduser(link_name)
destination = os.path.expanduser(target_path_to_link_at)
base_directory = self._context.base_directory(canonical_path=canonical_path)
absolute_source = os.path.join(base_directory, source)
absolute_source = os.path.join(base_directory, dotfile_source)
if relative:
source = self._relative_path(absolute_source, destination)
dotfile_source = self._relative_path(absolute_source, destination)
else:
source = absolute_source
if (not self._exists(link_name) and self._is_link(link_name) and
self._link_destination(link_name) != source):
dotfile_source = absolute_source
target_path_exists: bool = self._exists(target_path_to_link_at)
target_file_is_link: bool = self._is_link(target_path_to_link_at)
symlink_dest_at_target_path = self._link_destination(target_path_to_link_at)
if (not target_path_exists and target_file_is_link and
symlink_dest_at_target_path != dotfile_source):
self._log.warning('Invalid link %s -> %s' %
(link_name, self._link_destination(link_name)))
(target_path_to_link_at, symlink_dest_at_target_path))
# we need to use absolute_source below because our cwd is the dotfiles
# directory, and if source is relative, it will be relative to the
# destination directory
elif not self._exists(link_name) and (ignore_missing or self._exists(absolute_source)):
elif not target_path_exists and (ignore_missing or self._exists(absolute_source)):
try:
os.symlink(source, destination)
os.symlink(dotfile_source, destination)
except OSError:
self._log.warning('Linking failed %s -> %s' % (link_name, source))
self._log.warning('Linking failed %s -> %s' % (target_path_to_link_at, dotfile_source))
except Exception as e:
print(f"SYMLINK FAILED with arguments os.symlink({dotfile_source}, {destination})", )
raise e
else:
self._log.lowinfo('Creating link %s -> %s' % (link_name, source))
self._log.lowinfo('Creating link %s -> %s' % (target_path_to_link_at, dotfile_source))
success = True
elif self._exists(link_name) and not self._is_link(link_name):
elif target_path_exists and not target_file_is_link:
self._log.warning(
'%s already exists but is a regular file or directory' %
link_name)
elif self._is_link(link_name) and self._link_destination(link_name) != source:
target_path_to_link_at)
elif target_file_is_link and symlink_dest_at_target_path != dotfile_source:
self._log.warning('Incorrect link %s -> %s' %
(link_name, self._link_destination(link_name)))
(target_path_to_link_at, symlink_dest_at_target_path))
# again, we use absolute_source to check for existence
elif not self._exists(absolute_source):
if self._is_link(link_name):
if target_file_is_link:
self._log.warning('Nonexistent source %s -> %s' %
(link_name, source))
(target_path_to_link_at, dotfile_source))
else:
self._log.warning('Nonexistent source for %s : %s' %
(link_name, source))
(target_path_to_link_at, dotfile_source))
else:
self._log.lowinfo('Link exists %s -> %s' % (link_name, source))
self._log.lowinfo('Link exists %s -> %s' % (target_path_to_link_at, dotfile_source))
success = True
return success