Mercurial > hg
view hgext/split.py @ 35561:4c3a4bb31c0e
revsetlang: raise ParseError to report invalid format character
It's more common in revset and templater than raising Abort.
I have a couple more patches to address exceptions caused by bad format string
passed to revset() template function.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 01 Apr 2017 17:12:48 +0900 |
parents | 02ea370c2baa |
children | 7b86aa31b004 |
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# split.py - split a changeset into smaller ones # # Copyright 2015 Laurent Charignon <lcharignon@fb.com> # Copyright 2017 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. """command to split a changeset into smaller ones (EXPERIMENTAL)""" from __future__ import absolute_import from mercurial.i18n import _ from mercurial.node import ( nullid, short, ) from mercurial import ( bookmarks, cmdutil, commands, error, hg, obsolete, phases, registrar, revsetlang, scmutil, ) # allow people to use split without explicitly enabling rebase extension from . import ( rebase, ) 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 = 'ships-with-hg-core' @command('^split', [('r', 'rev', '', _("revision to split"), _('REV')), ('', 'rebase', True, _('rebase descendants after split')), ] + cmdutil.commitopts2, _('hg split [--no-rebase] [[-r] REV]')) def split(ui, repo, *revs, **opts): """split a changeset into smaller ones Repeatedly prompt changes and commit message for new changesets until there is nothing left in the original changeset. If --rev was not given, split the working directory parent. By default, rebase connected non-obsoleted descendants onto the new changeset. Use --no-rebase to avoid the rebase. """ revlist = [] if opts.get('rev'): revlist.append(opts.get('rev')) revlist.extend(revs) with repo.wlock(), repo.lock(), repo.transaction('split') as tr: revs = scmutil.revrange(repo, revlist or ['.']) if len(revs) > 1: raise error.Abort(_('cannot split multiple revisions')) rev = revs.first() ctx = repo[rev] if rev is None or ctx.node() == nullid: ui.status(_('nothing to split\n')) return 1 if ctx.node() is None: raise error.Abort(_('cannot split working directory')) # rewriteutil.precheck is not very useful here because: # 1. null check is done above and it's more friendly to return 1 # instead of abort # 2. mergestate check is done below by cmdutil.bailifchanged # 3. unstable check is more complex here because of --rebase # # So only "public" check is useful and it's checked directly here. if ctx.phase() == phases.public: raise error.Abort(_('cannot split public changeset'), hint=_("see 'hg help phases' for details")) descendants = list(repo.revs('(%d::) - (%d)', rev, rev)) alloworphaned = obsolete.isenabled(repo, obsolete.allowunstableopt) if opts.get('rebase'): # Skip obsoleted descendants and their descendants so the rebase # won't cause conflicts for sure. torebase = list(repo.revs('%ld - (%ld & obsolete())::', descendants, descendants)) if not alloworphaned and len(torebase) != len(descendants): raise error.Abort(_('split would leave orphaned changesets ' 'behind')) else: if not alloworphaned and descendants: raise error.Abort( _('cannot split changeset with children without rebase')) torebase = () if len(ctx.parents()) > 1: raise error.Abort(_('cannot split a merge changeset')) cmdutil.bailifchanged(repo) # Deactivate bookmark temporarily so it won't get moved unintentionally bname = repo._activebookmark if bname and repo._bookmarks[bname] != ctx.node(): bookmarks.deactivate(repo) wnode = repo['.'].node() top = None try: top = dosplit(ui, repo, tr, ctx, opts) finally: # top is None: split failed, need update --clean recovery. # wnode == ctx.node(): wnode split, no need to update. if top is None or wnode != ctx.node(): hg.clean(repo, wnode, show_stats=False) if bname: bookmarks.activate(repo, bname) if torebase and top: dorebase(ui, repo, torebase, top) def dosplit(ui, repo, tr, ctx, opts): committed = [] # [ctx] # Set working parent to ctx.p1(), and keep working copy as ctx's content # NOTE: if we can have "update without touching working copy" API, the # revert step could be cheaper. hg.clean(repo, ctx.p1().node(), show_stats=False) parents = repo.changelog.parents(ctx.node()) ui.pushbuffer() cmdutil.revert(ui, repo, ctx, parents) ui.popbuffer() # discard "reverting ..." messages # Any modified, added, removed, deleted result means split is incomplete incomplete = lambda repo: any(repo.status()[:4]) # Main split loop while incomplete(repo): if committed: header = (_('HG: Splitting %s. So far it has been split into:\n') % short(ctx.node())) for c in committed: firstline = c.description().split('\n', 1)[0] header += _('HG: - %s: %s\n') % (short(c.node()), firstline) header += _('HG: Write commit message for the next split ' 'changeset.\n') else: header = _('HG: Splitting %s. Write commit message for the ' 'first split changeset.\n') % short(ctx.node()) opts.update({ 'edit': True, 'interactive': True, 'message': header + ctx.description(), }) commands.commit(ui, repo, **opts) newctx = repo['.'] committed.append(newctx) if not committed: raise error.Abort(_('cannot split an empty revision')) scmutil.cleanupnodes(repo, {ctx.node(): [c.node() for c in committed]}, operation='split') return committed[-1] def dorebase(ui, repo, src, dest): rebase.rebase(ui, repo, rev=[revsetlang.formatspec('%ld', src)], dest=revsetlang.formatspec('%d', dest))