Mercurial > hg
view hgext/purge.py @ 28240:1ac8ce137377
changegroup: fix treemanifests on merges
The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.
Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).
The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 12 Feb 2016 23:09:09 -0800 |
parents | 56b2bcea2529 |
children | 27996f78a64c |
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# Copyright (C) 2006 - Marco Barisione <marco@barisione.org> # # This is a small extension for Mercurial (https://mercurial-scm.org/) # that removes files not known to mercurial # # This program was inspired by the "cvspurge" script contained in CVS # utilities (http://www.red-bean.com/cvsutils/). # # For help on the usage of "hg purge" use: # hg help purge # # 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, see <http://www.gnu.org/licenses/>. '''command to delete untracked files from the working directory''' from mercurial import util, commands, cmdutil, scmutil, error from mercurial.i18n import _ import os cmdtable = {} command = cmdutil.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'internal' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'internal' @command('purge|clean', [('a', 'abort-on-err', None, _('abort if an error occurs')), ('', 'all', None, _('purge ignored files too')), ('', 'dirs', None, _('purge empty directories')), ('', 'files', None, _('purge files')), ('p', 'print', None, _('print filenames instead of deleting them')), ('0', 'print0', None, _('end filenames with NUL, for use with xargs' ' (implies -p/--print)')), ] + commands.walkopts, _('hg purge [OPTION]... [DIR]...')) 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 an otherwise-clean source tree. This means that purge will delete the following by default: - Unknown files: files marked with "?" by :hg:`status` - Empty directories: in fact Mercurial ignores directories unless they contain files under source control management But it will leave untouched: - Modified and unmodified tracked files - Ignored files (unless --all is specified) - New files added to the repository (with :hg:`add`) The --files and --dirs options can be used to direct purge to delete only files, only directories, or both. If neither option is given, both will be deleted. If directories are given on the command line, only files in these directories are considered. Be careful with purge, as 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'] eol = '\n' if opts['print0']: eol = '\0' act = False # --print0 implies --print removefiles = opts['files'] removedirs = opts['dirs'] if not removefiles and not removedirs: removefiles = True removedirs = True def remove(remove_func, name): if act: try: remove_func(repo.wjoin(name)) except OSError: m = _('%s cannot be removed') % name if opts['abort_on_err']: raise error.Abort(m) ui.warn(_('warning: %s\n') % m) else: ui.write('%s%s' % (name, eol)) match = scmutil.match(repo[None], dirs, opts) if removedirs: directories = [] match.explicitdir = match.traversedir = directories.append status = repo.status(match=match, ignored=opts['all'], unknown=True) if removefiles: for f in sorted(status.unknown + status.ignored): if act: ui.note(_('removing file %s\n') % f) remove(util.unlink, f) if removedirs: for f in sorted(directories, reverse=True): if match(f) and not os.listdir(repo.wjoin(f)): if act: ui.note(_('removing directory %s\n') % f) remove(os.rmdir, f)