Mercurial > hg
view purge.py @ 2375:9f4f77693890
Added some comments
author | Marco Barisione <marco@barisione.org> |
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date | Tue, 16 May 2006 21:43:21 +0200 |
parents | ffc2ed61061b |
children | 52cfb9864257 |
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#!/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 class Purge(object): def __init__(self, act=True, abort_on_err=False): self._repo = None self._ui = None self._hg_root = None self._act = act self._abort_on_err = abort_on_err def purge(self, ui, repo, paths=None): self._repo = repo self._ui = ui self._hg_root = self._split_path(repo.root) if not paths: paths = [repo.root] for path in paths: 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: ' + msg + '\n') 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(name + '\n') if self._act: try: os.remove(name) except OSError, e: self._error('"%s" cannot be removed' % name) def _remove_dir(self, name): self._ui.note(name + '\n') if self._act: try: os.rmdir(name) except OSError, e: self._error('"%s" cannot be removed' % name) 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): ''' Retruns 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, *paths, **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: infact 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 names are given, only files matching the names are considered, else all files in the repository directory 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 -vn options. ''' act = not opts['nothing'] abort_on_err = bool(opts['abort_on_err']) p = Purge(act, abort_on_err) p.purge(ui, repo, paths) cmdtable = { 'purge': (purge, [('a', 'abort-on-err', None, 'abort if an error occurs'), ('n', 'nothing', None, 'do nothing on files, useful with --verbose'), ], 'hg purge [OPTIONS] [NAME]') }