Mercurial > hg
view hgext/fetch.py @ 45450:47d10ade5bc4
histedit: cache description line
Navigating the curses-based histedit interface can be pretty slow
because it redraws everything whenever you make a change.
This patch simply replaces `@property` by `@util.propertycache` on the
`histeditrule.desc()` function so it's not re-calculated every time
the screen needs to be re-rendered. I timed it on an example of 30
simple commits, where I moved the top commit down 25 steps and then up
25 steps after. Before this patch, that (the whole `hg histedit`
invocation) took 11.6 s of CPU and after this patch it took 0.8 s).
Differential Revision: https://phab.mercurial-scm.org/D9016
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 11 Sep 2020 09:35:49 -0700 |
parents | 2f290136b7d6 |
children | 89a2afe31e82 |
line wrap: on
line source
# fetch.py - pull and merge remote changes # # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. '''pull, update and merge in one command (DEPRECATED)''' from __future__ import absolute_import from mercurial.i18n import _ from mercurial.node import short from mercurial import ( cmdutil, error, exchange, hg, lock, pycompat, registrar, util, ) from mercurial.utils import dateutil release = lock.release cmdtable = {} command = registrar.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' 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 = b'ships-with-hg-core' @command( b'fetch', [ ( b'r', b'rev', [], _(b'a specific revision you would like to pull'), _(b'REV'), ), (b'', b'edit', None, _(b'invoke editor on commit messages')), (b'', b'force-editor', None, _(b'edit commit message (DEPRECATED)')), (b'', b'switch-parent', None, _(b'switch parents when merging')), ] + cmdutil.commitopts + cmdutil.commitopts2 + cmdutil.remoteopts, _(b'hg fetch [SOURCE]'), helpcategory=command.CATEGORY_REMOTE_REPO_MANAGEMENT, ) def fetch(ui, repo, source=b'default', **opts): '''pull changes from a remote repository, merge new changes if needed. This finds all changes from the repository at the specified path or URL and adds them to the local repository. If the pulled changes add a new branch head, the head is automatically merged, and the result of the merge is committed. Otherwise, the working directory is updated to include the new changes. When a merge is needed, the working directory is first updated to the newly pulled changes. Local changes are then merged into the pulled changes. To switch the merge order, use --switch-parent. See :hg:`help dates` for a list of formats valid for -d/--date. Returns 0 on success. ''' opts = pycompat.byteskwargs(opts) date = opts.get(b'date') if date: opts[b'date'] = dateutil.parsedate(date) parent = repo.dirstate.p1() branch = repo.dirstate.branch() try: branchnode = repo.branchtip(branch) except error.RepoLookupError: branchnode = None if parent != branchnode: raise error.Abort( _(b'working directory not at branch tip'), hint=_(b"use 'hg update' to check out branch tip"), ) wlock = lock = None try: wlock = repo.wlock() lock = repo.lock() cmdutil.bailifchanged(repo) bheads = repo.branchheads(branch) bheads = [head for head in bheads if len(repo[head].children()) == 0] if len(bheads) > 1: raise error.Abort( _( b'multiple heads in this branch ' b'(use "hg heads ." and "hg merge" to merge)' ) ) other = hg.peer(repo, opts, ui.expandpath(source)) ui.status( _(b'pulling from %s\n') % util.hidepassword(ui.expandpath(source)) ) revs = None if opts[b'rev']: try: revs = [other.lookup(rev) for rev in opts[b'rev']] except error.CapabilityError: err = _( b"other repository doesn't support revision lookup, " b"so a rev cannot be specified." ) raise error.Abort(err) # Are there any changes at all? modheads = exchange.pull(repo, other, heads=revs).cgresult if modheads == 0: return 0 # Is this a simple fast-forward along the current branch? newheads = repo.branchheads(branch) newchildren = repo.changelog.nodesbetween([parent], newheads)[2] if len(newheads) == 1 and len(newchildren): if newchildren[0] != parent: return hg.update(repo, newchildren[0]) else: return 0 # Are there more than one additional branch heads? newchildren = [n for n in newchildren if n != parent] newparent = parent if newchildren: newparent = newchildren[0] hg.clean(repo, newparent) newheads = [n for n in newheads if n != newparent] if len(newheads) > 1: ui.status( _( b'not merging with %d other new branch heads ' b'(use "hg heads ." and "hg merge" to merge them)\n' ) % (len(newheads) - 1) ) return 1 if not newheads: return 0 # Otherwise, let's merge. err = False if newheads: # By default, we consider the repository we're pulling # *from* as authoritative, so we merge our changes into # theirs. if opts[b'switch_parent']: firstparent, secondparent = newparent, newheads[0] else: firstparent, secondparent = newheads[0], newparent ui.status( _(b'updating to %d:%s\n') % (repo.changelog.rev(firstparent), short(firstparent)) ) hg.clean(repo, firstparent) p2ctx = repo[secondparent] ui.status( _(b'merging with %d:%s\n') % (p2ctx.rev(), short(secondparent)) ) err = hg.merge(p2ctx, remind=False) if not err: # we don't translate commit messages message = cmdutil.logmessage(ui, opts) or ( b'Automated merge with %s' % util.removeauth(other.url()) ) editopt = opts.get(b'edit') or opts.get(b'force_editor') editor = cmdutil.getcommiteditor(edit=editopt, editform=b'fetch') n = repo.commit( message, opts[b'user'], opts[b'date'], editor=editor ) ui.status( _(b'new changeset %d:%s merges remote changes with local\n') % (repo.changelog.rev(n), short(n)) ) return err finally: release(lock, wlock)