purge.py
179 lines
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| text/x-python
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PythonLexer
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r2401 | #!/usr/bin/env python | ||
# | ||||
# Copyright (C) 2006 - Marco Barisione <marco@barisione.org> | ||||
# | ||||
# This is a small extension for Mercurial (http://www.selenic.com/mercurial) | ||||
# that removes files not known to mercurial | ||||
# | ||||
# This program is free software; you can redistribute it and/or modify | ||||
# it under the terms of the GNU General Public License as published by | ||||
# the Free Software Foundation; either version 2 of the License, or | ||||
# (at your option) any later version. | ||||
# | ||||
# This program is distributed in the hope that it will be useful, | ||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||||
# GNU General Public License for more details. | ||||
# | ||||
# You should have received a copy of the GNU General Public License | ||||
# along with this program; if not, write to the Free Software | ||||
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||||
from mercurial import hg, util | ||||
import os | ||||
def _(s): | ||||
return s | ||||
class Purge(object): | ||||
def __init__(self, act=True, abort_on_err=False, eol='\n'): | ||||
self._repo = None | ||||
self._ui = None | ||||
self._hg_root = None | ||||
self._act = act | ||||
self._abort_on_err = abort_on_err | ||||
self._eol = eol | ||||
def purge(self, ui, repo, dirs=None): | ||||
self._repo = repo | ||||
self._ui = ui | ||||
self._hg_root = self._split_path(repo.root) | ||||
if not dirs: | ||||
dirs = [repo.root] | ||||
for path in dirs: | ||||
path = os.path.abspath(path) | ||||
for root, dirs, files in os.walk(path, topdown=False): | ||||
if '.hg' in self._split_path(root): | ||||
# Skip files in the .hg directory. | ||||
# Note that if the repository is in a directory | ||||
# called .hg this command does not work. | ||||
continue | ||||
for name in files: | ||||
self._remove_file(os.path.join(root, name)) | ||||
if not os.listdir(root): | ||||
# Remove this directory if it is empty. | ||||
self._remove_dir(root) | ||||
self._repo = None | ||||
self._ui = None | ||||
self._hg_root = None | ||||
def _error(self, msg): | ||||
if self._abort_on_err: | ||||
raise util.Abort(msg) | ||||
else: | ||||
self._ui.warn(_('warning: %s\n') % msg) | ||||
def _remove_file(self, name): | ||||
relative_name = self._relative_name(name) | ||||
# dirstate.state() requires a path relative to the root | ||||
# directory. | ||||
if self._repo.dirstate.state(relative_name) != '?': | ||||
return | ||||
self._ui.note(_('Removing file %s\n') % name) | ||||
if self._act: | ||||
try: | ||||
os.remove(name) | ||||
except OSError, e: | ||||
self._error(_('%s cannot be removed') % name) | ||||
else: | ||||
self._ui.write('%s%s' % (name, self._eol)) | ||||
def _remove_dir(self, name): | ||||
self._ui.note(_('Removing directory %s\n') % name) | ||||
if self._act: | ||||
try: | ||||
os.rmdir(name) | ||||
except OSError, e: | ||||
self._error(_('%s cannot be removed') % name) | ||||
else: | ||||
self._ui.write('%s%s' % (name, self._eol)) | ||||
def _relative_name(self, path): | ||||
''' | ||||
Returns "path" but relative to the root directory of the | ||||
repository and with '\\' replaced with '/'. | ||||
This is needed because this is the format required by | ||||
self._repo.dirstate.state(). | ||||
''' | ||||
splitted_path = self._split_path(path)[len(self._hg_root):] | ||||
# Even on Windows self._repo.dirstate.state() wants '/'. | ||||
return self._join_path(splitted_path).replace('\\', '/') | ||||
def _split_path(self, path): | ||||
''' | ||||
Returns a list of the single files/directories in "path". | ||||
For instance: | ||||
'/home/user/test' -> ['/', 'home', 'user', 'test'] | ||||
'C:\\Mercurial' -> ['C:\\', 'Mercurial'] | ||||
''' | ||||
ret = [] | ||||
while True: | ||||
head, tail = os.path.split(path) | ||||
if tail: | ||||
ret.append(tail) | ||||
if head == path: | ||||
ret.append(head) | ||||
break | ||||
path = head | ||||
ret.reverse() | ||||
return ret | ||||
def _join_path(self, splitted_path): | ||||
''' | ||||
Joins a list returned by _split_path(). | ||||
''' | ||||
ret = '' | ||||
for part in splitted_path: | ||||
if ret: | ||||
ret = os.path.join(ret, part) | ||||
else: | ||||
ret = part | ||||
return ret | ||||
def purge(ui, repo, *dirs, **opts): | ||||
'''removes files not tracked by mercurial | ||||
Delete files not known to mercurial, this is useful to test local and | ||||
uncommitted changes in the otherwise clean source tree. | ||||
This means that purge will delete: | ||||
- Unknown files: files marked with "?" by "hg status" | ||||
- Ignored files: files usually ignored by Mercurial because they match | ||||
a pattern in a ".hgignore" file | ||||
- Empty directories: in fact Mercurial ignores directories unless they | ||||
contain files under source control managment | ||||
But it will leave untouched: | ||||
- Unmodified tracked files | ||||
- Modified tracked files | ||||
- New files added to the repository (with "hg add") | ||||
If directories are given on the command line, only files in these | ||||
directories are considered. | ||||
Be careful with purge, you could irreversibly delete some files you | ||||
forgot to add to the repository. If you only want to print the list of | ||||
files that this program would delete use the --print option. | ||||
''' | ||||
act = not opts['print'] | ||||
abort_on_err = bool(opts['abort_on_err']) | ||||
eol = opts['print0'] and '\0' or '\n' | ||||
if eol == '\0': | ||||
# --print0 implies --print | ||||
act = False | ||||
p = Purge(act, abort_on_err, eol) | ||||
p.purge(ui, repo, dirs) | ||||
cmdtable = { | ||||
'purge': | ||||
(purge, | ||||
[('a', 'abort-on-err', None, _('abort if an error occurs')), | ||||
('p', 'print', None, _('print the file names instead of deleting them')), | ||||
('0', 'print0', None, _('end filenames with NUL, for use with xargs' | ||||
' (implies -p)'))], | ||||
_('hg purge [OPTION]... [DIR]...')) | ||||
} | ||||