Mercurial > hg
view hgext/transplant.py @ 46582:b0a3ca02d17a
copies-rust: implement PartialEqual manually
Now that we know that each (dest, rev) pair has at most a unique CopySource, we
can simplify comparison a lot.
This "simple" step buy a good share of the previous slowdown back in some case:
Repo Case Source-Rev Dest-Rev # of revisions old time new time Difference Factor time per rev
---------------------------------------------------------------------------------------------------------------------------------------------------------------
mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 382065 revs, 43.304637 s, 34.443661 s, -8.860976 s, × 0.7954, 90 µs/rev
Full benchmark:
Repo Case Source-Rev Dest-Rev # of revisions old time new time Difference Factor time per rev
---------------------------------------------------------------------------------------------------------------------------------------------------------------
mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 1 revs, 0.000043 s, 0.000043 s, +0.000000 s, × 1.0000, 43 µs/rev
mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 6 revs, 0.000114 s, 0.000117 s, +0.000003 s, × 1.0263, 19 µs/rev
mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 1032 revs, 0.004937 s, 0.004892 s, -0.000045 s, × 0.9909, 4 µs/rev
pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 9 revs, 0.000339 s, 0.000196 s, -0.000143 s, × 0.5782, 21 µs/rev
pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 1 revs, 0.000049 s, 0.000050 s, +0.000001 s, × 1.0204, 50 µs/rev
pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 7 revs, 0.000202 s, 0.000117 s, -0.000085 s, × 0.5792, 16 µs/rev
pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 1 revs, 0.000409 s, 0.6f1f4a s, -0.000087 s, × 0.7873, 322 µs/rev
pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 6 revs, 0.011984 s, 0.011949 s, -0.000035 s, × 0.9971, 1991 µs/rev
pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 4785 revs, 0.050820 s, 0.050802 s, -0.000018 s, × 0.9996, 10 µs/rev
pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 6780 revs, 0.087953 s, 0.088090 s, +0.000137 s, × 1.0016, 12 µs/rev
pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 5441 revs, 0.062902 s, 0.062079 s, -0.000823 s, × 0.9869, 11 µs/rev
pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 43645 revs, 0.679234 s, 0.635337 s, -0.043897 s, × 0.9354, 14 µs/rev
pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 2 revs, 0.013095 s, 0.013262 s, +0.000167 s, × 1.0128, 6631 µs/rev
pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 11316 revs, 0.120910 s, 0.120085 s, -0.000825 s, × 0.9932, 10 µs/rev
netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 2 revs, 0.000087 s, 0.000085 s, -0.000002 s, × 0.9770, 42 µs/rev
netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 2 revs, 0.000107 s, 0.000110 s, +0.000003 s, × 1.0280, 55 µs/rev
netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 3 revs, 0.000186 s, 0.000177 s, -0.000009 s, × 0.9516, 59 µs/rev
netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 9 revs, 0.000754 s, 0.000743 s, -0.000011 s, × 0.9854, 82 µs/rev
netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 1421 revs, 0.010443 s, 0.010168 s, -0.000275 s, × 0.9737, 7 µs/rev
netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 1533 revs, 0.015697 s, 0.015946 s, +0.000249 s, × 1.0159, 10 µs/rev
netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 5750 revs, 0.063528 s, 0.062712 s, -0.000816 s, × 0.9872, 10 µs/rev
netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 66949 revs, 0.545515 s, 0.523832 s, -0.021683 s, × 0.9603, 7 µs/rev
mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 2 revs, 0.000089 s, 0.000090 s, +0.000001 s, × 1.0112, 45 µs/rev
mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 8 revs, 0.000265 s, 0.000264 s, -0.000001 s, × 0.9962, 33 µs/rev
mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 9 revs, 0.000381 s, 0.000187 s, -0.000194 s, × 0.4908, 20 µs/rev
mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 7 revs, 0.000672 s, 0.000665 s, -0.000007 s, × 0.9896, 95 µs/rev
mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 3 revs, 0.003497 s, 0.003556 s, +0.000059 s, × 1.0169, 1185 µs/rev
mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 6 revs, 0.073204 s, 0.071345 s, -0.001859 s, × 0.9746, 11890 µs/rev
mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 1593 revs, 0.006482 s, 0.006551 s, +0.000069 s, × 1.0106, 4 µs/rev
mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 41 revs, 0.005066 s, 0.005078 s, +0.000012 s, × 1.0024, 123 µs/rev
mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 7839 revs, 0.065707 s, 0.065823 s, +0.000116 s, × 1.0018, 8 µs/rev
mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 615 revs, 0.026800 s, 0.027050 s, +0.000250 s, × 1.0093, 43 µs/rev
mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 30263 revs, 0.203856 s, 0.202443 s, -0.001413 s, × 0.9931, 6 µs/rev
mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 153721 revs, 1.293394 s, 1.261583 s, -0.031811 s, × 0.9754, 8 µs/rev
mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 204976 revs, 1.698239 s, 1.643869 s, -0.054370 s, × 0.9680, 8 µs/rev
mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 2 revs, 0.000875 s, 0.000868 s, -0.000007 s, × 0.9920, 434 µs/rev
mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 2 revs, 0.000891 s, 0.000887 s, -0.000004 s, × 0.9955, 443 µs/rev
mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 4 revs, 0.000292 s, 0.000168 s, -0.000124 s, × 0.5753, 42 µs/rev
mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 2 revs, 0.003939 s, 0.001160 s, -0.002779 s, × 0.2945, 580 µs/rev
mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 1 revs, 0.033027 s, 0.033016 s, -0.000011 s, × 0.9997, 33016 µs/rev
mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 6 revs, 0.073703 s, 0.073312 s, -0.39ae31 s, × 0.9947, 12218 µs/rev
mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 1593 revs, 0.006469 s, 0.006485 s, +0.000016 s, × 1.0025, 4 µs/rev
mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 41 revs, 0.005278 s, 0.005494 s, +0.000216 s, × 1.0409, 134 µs/rev
mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 6657 revs, 0.064995 s, 0.064879 s, -0.000116 s, × 0.9982, 9 µs/rev
mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 40314 revs, 0.301041 s, 0.301469 s, +0.000428 s, × 1.0014, 7 µs/rev
mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 38690 revs, 0.285575 s, 0.297113 s, +0.011538 s, × 1.0404, 7 µs/rev
mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 8598 revs, 0.085597 s, 0.085890 s, +0.000293 s, × 1.0034, 9 µs/rev
mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 615 revs, 0.027118 s, 0.027718 s, +0.000600 s, × 1.0221, 45 µs/rev
mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 97052 revs, 2.119204 s, 2.048949 s, -0.070255 s, × 0.9668, 21 µs/rev
mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 52031 revs, 0.701479 s, 0.685924 s, -0.015555 s, × 0.9778, 13 µs/rev
mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 363753 revs, 4.482399 s, 4.482891 s, +0.000492 s, × 1.0001, 12 µs/rev
mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 34414 revs, 0.574082 s, 0.577633 s, +0.003551 s, × 1.0062, 16 µs/rev
mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 362229 revs, 4.480366 s, 4.397816 s, -0.082550 s, × 0.9816, 12 µs/rev
mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 359344 revs, 4.369070 s, 4.370538 s, +0.001468 s, × 1.0003, 12 µs/rev
mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 192665 revs, 1.592506 s, 1.570439 s, -0.022067 s, × 0.9861, 8 µs/rev
mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 228985 revs, 87.824489 s, 88.388512 s, +0.564023 s, × 1.0064, 386 µs/rev
mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 382065 revs, 43.304637 s, 34.443661 s, -8.860976 s, × 0.7954, 90 µs/rev
private : 459513 revs, 33.853687 s, 27.370148 s, -6.483539 s, × 0.8085, 59 µs/rev
Differential Revision: https://phab.mercurial-scm.org/D9653
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 16 Dec 2020 11:11:05 +0100 |
parents | 59fa3890d40a |
children | 0428e555acb7 |
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# Patch transplanting extension for Mercurial # # Copyright 2006, 2007 Brendan Cully <brendan@kublai.com> # # 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 transplant changesets from another branch This extension allows you to transplant changes to another parent revision, possibly in another repository. The transplant is done using 'diff' patches. Transplanted patches are recorded in .hg/transplant/transplants, as a map from a changeset hash to its hash in the source repository. ''' from __future__ import absolute_import import os from mercurial.i18n import _ from mercurial.pycompat import open from mercurial.node import ( bin, hex, nullid, short, ) from mercurial import ( bundlerepo, cmdutil, error, exchange, hg, logcmdutil, match, merge, patch, pycompat, registrar, revset, scmutil, smartset, state as statemod, util, vfs as vfsmod, ) from mercurial.utils import ( procutil, stringutil, ) class TransplantError(error.Abort): pass 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' configtable = {} configitem = registrar.configitem(configtable) configitem( b'transplant', b'filter', default=None, ) configitem( b'transplant', b'log', default=None, ) class transplantentry(object): def __init__(self, lnode, rnode): self.lnode = lnode self.rnode = rnode class transplants(object): def __init__(self, path=None, transplantfile=None, opener=None): self.path = path self.transplantfile = transplantfile self.opener = opener if not opener: self.opener = vfsmod.vfs(self.path) self.transplants = {} self.dirty = False self.read() def read(self): abspath = os.path.join(self.path, self.transplantfile) if self.transplantfile and os.path.exists(abspath): for line in self.opener.read(self.transplantfile).splitlines(): lnode, rnode = map(bin, line.split(b':')) list = self.transplants.setdefault(rnode, []) list.append(transplantentry(lnode, rnode)) def write(self): if self.dirty and self.transplantfile: if not os.path.isdir(self.path): os.mkdir(self.path) fp = self.opener(self.transplantfile, b'w') for list in pycompat.itervalues(self.transplants): for t in list: l, r = map(hex, (t.lnode, t.rnode)) fp.write(l + b':' + r + b'\n') fp.close() self.dirty = False def get(self, rnode): return self.transplants.get(rnode) or [] def set(self, lnode, rnode): list = self.transplants.setdefault(rnode, []) list.append(transplantentry(lnode, rnode)) self.dirty = True def remove(self, transplant): list = self.transplants.get(transplant.rnode) if list: del list[list.index(transplant)] self.dirty = True class transplanter(object): def __init__(self, ui, repo, opts): self.ui = ui self.path = repo.vfs.join(b'transplant') self.opener = vfsmod.vfs(self.path) self.transplants = transplants( self.path, b'transplants', opener=self.opener ) def getcommiteditor(): editform = cmdutil.mergeeditform(repo[None], b'transplant') return cmdutil.getcommiteditor( editform=editform, **pycompat.strkwargs(opts) ) self.getcommiteditor = getcommiteditor def applied(self, repo, node, parent): """returns True if a node is already an ancestor of parent or is parent or has already been transplanted""" if hasnode(repo, parent): parentrev = repo.changelog.rev(parent) if hasnode(repo, node): rev = repo.changelog.rev(node) reachable = repo.changelog.ancestors( [parentrev], rev, inclusive=True ) if rev in reachable: return True for t in self.transplants.get(node): # it might have been stripped if not hasnode(repo, t.lnode): self.transplants.remove(t) return False lnoderev = repo.changelog.rev(t.lnode) if lnoderev in repo.changelog.ancestors( [parentrev], lnoderev, inclusive=True ): return True return False def apply(self, repo, source, revmap, merges, opts=None): '''apply the revisions in revmap one by one in revision order''' if opts is None: opts = {} revs = sorted(revmap) p1 = repo.dirstate.p1() pulls = [] diffopts = patch.difffeatureopts(self.ui, opts) diffopts.git = True lock = tr = None try: lock = repo.lock() tr = repo.transaction(b'transplant') for rev in revs: node = revmap[rev] revstr = b'%d:%s' % (rev, short(node)) if self.applied(repo, node, p1): self.ui.warn( _(b'skipping already applied revision %s\n') % revstr ) continue parents = source.changelog.parents(node) if not (opts.get(b'filter') or opts.get(b'log')): # If the changeset parent is the same as the # wdir's parent, just pull it. if parents[0] == p1: pulls.append(node) p1 = node continue if pulls: if source != repo: exchange.pull(repo, source.peer(), heads=pulls) merge.update(repo[pulls[-1]]) p1 = repo.dirstate.p1() pulls = [] domerge = False if node in merges: # pulling all the merge revs at once would mean we # couldn't transplant after the latest even if # transplants before them fail. domerge = True if not hasnode(repo, node): exchange.pull(repo, source.peer(), heads=[node]) skipmerge = False if parents[1] != nullid: if not opts.get(b'parent'): self.ui.note( _(b'skipping merge changeset %d:%s\n') % (rev, short(node)) ) skipmerge = True else: parent = source.lookup(opts[b'parent']) if parent not in parents: raise error.Abort( _(b'%s is not a parent of %s') % (short(parent), short(node)) ) else: parent = parents[0] if skipmerge: patchfile = None else: fd, patchfile = pycompat.mkstemp(prefix=b'hg-transplant-') fp = os.fdopen(fd, 'wb') gen = patch.diff(source, parent, node, opts=diffopts) for chunk in gen: fp.write(chunk) fp.close() del revmap[rev] if patchfile or domerge: try: try: n = self.applyone( repo, node, source.changelog.read(node), patchfile, merge=domerge, log=opts.get(b'log'), filter=opts.get(b'filter'), ) except TransplantError: # Do not rollback, it is up to the user to # fix the merge or cancel everything tr.close() raise if n and domerge: self.ui.status( _(b'%s merged at %s\n') % (revstr, short(n)) ) elif n: self.ui.status( _(b'%s transplanted to %s\n') % (short(node), short(n)) ) finally: if patchfile: os.unlink(patchfile) tr.close() if pulls: exchange.pull(repo, source.peer(), heads=pulls) merge.update(repo[pulls[-1]]) finally: self.saveseries(revmap, merges) self.transplants.write() if tr: tr.release() if lock: lock.release() def filter(self, filter, node, changelog, patchfile): '''arbitrarily rewrite changeset before applying it''' self.ui.status(_(b'filtering %s\n') % patchfile) user, date, msg = (changelog[1], changelog[2], changelog[4]) fd, headerfile = pycompat.mkstemp(prefix=b'hg-transplant-') fp = os.fdopen(fd, 'wb') fp.write(b"# HG changeset patch\n") fp.write(b"# User %s\n" % user) fp.write(b"# Date %d %d\n" % date) fp.write(msg + b'\n') fp.close() try: self.ui.system( b'%s %s %s' % ( filter, procutil.shellquote(headerfile), procutil.shellquote(patchfile), ), environ={ b'HGUSER': changelog[1], b'HGREVISION': hex(node), }, onerr=error.Abort, errprefix=_(b'filter failed'), blockedtag=b'transplant_filter', ) user, date, msg = self.parselog(open(headerfile, b'rb'))[1:4] finally: os.unlink(headerfile) return (user, date, msg) def applyone( self, repo, node, cl, patchfile, merge=False, log=False, filter=None ): '''apply the patch in patchfile to the repository as a transplant''' (manifest, user, (time, timezone), files, message) = cl[:5] date = b"%d %d" % (time, timezone) extra = {b'transplant_source': node} if filter: (user, date, message) = self.filter(filter, node, cl, patchfile) if log: # we don't translate messages inserted into commits message += b'\n(transplanted from %s)' % hex(node) self.ui.status(_(b'applying %s\n') % short(node)) self.ui.note(b'%s %s\n%s\n' % (user, date, message)) if not patchfile and not merge: raise error.Abort(_(b'can only omit patchfile if merging')) if patchfile: try: files = set() patch.patch(self.ui, repo, patchfile, files=files, eolmode=None) files = list(files) except Exception as inst: seriespath = os.path.join(self.path, b'series') if os.path.exists(seriespath): os.unlink(seriespath) p1 = repo.dirstate.p1() p2 = node self.log(user, date, message, p1, p2, merge=merge) self.ui.write(stringutil.forcebytestr(inst) + b'\n') raise TransplantError( _( b'fix up the working directory and run ' b'hg transplant --continue' ) ) else: files = None if merge: p1 = repo.dirstate.p1() repo.setparents(p1, node) m = match.always() else: m = match.exact(files) n = repo.commit( message, user, date, extra=extra, match=m, editor=self.getcommiteditor(), ) if not n: self.ui.warn(_(b'skipping emptied changeset %s\n') % short(node)) return None if not merge: self.transplants.set(n, node) return n def canresume(self): return os.path.exists(os.path.join(self.path, b'journal')) def resume(self, repo, source, opts): '''recover last transaction and apply remaining changesets''' if os.path.exists(os.path.join(self.path, b'journal')): n, node = self.recover(repo, source, opts) if n: self.ui.status( _(b'%s transplanted as %s\n') % (short(node), short(n)) ) else: self.ui.status( _(b'%s skipped due to empty diff\n') % (short(node),) ) seriespath = os.path.join(self.path, b'series') if not os.path.exists(seriespath): self.transplants.write() return nodes, merges = self.readseries() revmap = {} for n in nodes: revmap[source.changelog.rev(n)] = n os.unlink(seriespath) self.apply(repo, source, revmap, merges, opts) def recover(self, repo, source, opts): '''commit working directory using journal metadata''' node, user, date, message, parents = self.readlog() merge = False if not user or not date or not message or not parents[0]: raise error.Abort(_(b'transplant log file is corrupt')) parent = parents[0] if len(parents) > 1: if opts.get(b'parent'): parent = source.lookup(opts[b'parent']) if parent not in parents: raise error.Abort( _(b'%s is not a parent of %s') % (short(parent), short(node)) ) else: merge = True extra = {b'transplant_source': node} try: p1 = repo.dirstate.p1() if p1 != parent: raise error.Abort( _(b'working directory not at transplant parent %s') % hex(parent) ) if merge: repo.setparents(p1, parents[1]) st = repo.status() modified, added, removed, deleted = ( st.modified, st.added, st.removed, st.deleted, ) if merge or modified or added or removed or deleted: n = repo.commit( message, user, date, extra=extra, editor=self.getcommiteditor(), ) if not n: raise error.Abort(_(b'commit failed')) if not merge: self.transplants.set(n, node) else: n = None self.unlog() return n, node finally: # TODO: get rid of this meaningless try/finally enclosing. # this is kept only to reduce changes in a patch. pass def stop(self, ui, repo): """logic to stop an interrupted transplant""" if self.canresume(): startctx = repo[b'.'] merge.clean_update(startctx) ui.status(_(b"stopped the interrupted transplant\n")) ui.status( _(b"working directory is now at %s\n") % startctx.hex()[:12] ) self.unlog() return 0 def readseries(self): nodes = [] merges = [] cur = nodes for line in self.opener.read(b'series').splitlines(): if line.startswith(b'# Merges'): cur = merges continue cur.append(bin(line)) return (nodes, merges) def saveseries(self, revmap, merges): if not revmap: return if not os.path.isdir(self.path): os.mkdir(self.path) series = self.opener(b'series', b'w') for rev in sorted(revmap): series.write(hex(revmap[rev]) + b'\n') if merges: series.write(b'# Merges\n') for m in merges: series.write(hex(m) + b'\n') series.close() def parselog(self, fp): parents = [] message = [] node = nullid inmsg = False user = None date = None for line in fp.read().splitlines(): if inmsg: message.append(line) elif line.startswith(b'# User '): user = line[7:] elif line.startswith(b'# Date '): date = line[7:] elif line.startswith(b'# Node ID '): node = bin(line[10:]) elif line.startswith(b'# Parent '): parents.append(bin(line[9:])) elif not line.startswith(b'# '): inmsg = True message.append(line) if None in (user, date): raise error.Abort( _(b"filter corrupted changeset (no user or date)") ) return (node, user, date, b'\n'.join(message), parents) def log(self, user, date, message, p1, p2, merge=False): '''journal changelog metadata for later recover''' if not os.path.isdir(self.path): os.mkdir(self.path) fp = self.opener(b'journal', b'w') fp.write(b'# User %s\n' % user) fp.write(b'# Date %s\n' % date) fp.write(b'# Node ID %s\n' % hex(p2)) fp.write(b'# Parent ' + hex(p1) + b'\n') if merge: fp.write(b'# Parent ' + hex(p2) + b'\n') fp.write(message.rstrip() + b'\n') fp.close() def readlog(self): return self.parselog(self.opener(b'journal')) def unlog(self): '''remove changelog journal''' absdst = os.path.join(self.path, b'journal') if os.path.exists(absdst): os.unlink(absdst) def transplantfilter(self, repo, source, root): def matchfn(node): if self.applied(repo, node, root): return False if source.changelog.parents(node)[1] != nullid: return False extra = source.changelog.read(node)[5] cnode = extra.get(b'transplant_source') if cnode and self.applied(repo, cnode, root): return False return True return matchfn def hasnode(repo, node): try: return repo.changelog.rev(node) is not None except error.StorageError: return False def browserevs(ui, repo, nodes, opts): '''interactively transplant changesets''' displayer = logcmdutil.changesetdisplayer(ui, repo, opts) transplants = [] merges = [] prompt = _( b'apply changeset? [ynmpcq?]:' b'$$ &yes, transplant this changeset' b'$$ &no, skip this changeset' b'$$ &merge at this changeset' b'$$ show &patch' b'$$ &commit selected changesets' b'$$ &quit and cancel transplant' b'$$ &? (show this help)' ) for node in nodes: displayer.show(repo[node]) action = None while not action: choice = ui.promptchoice(prompt) action = b'ynmpcq?'[choice : choice + 1] if action == b'?': for c, t in ui.extractchoices(prompt)[1]: ui.write(b'%s: %s\n' % (c, t)) action = None elif action == b'p': parent = repo.changelog.parents(node)[0] for chunk in patch.diff(repo, parent, node): ui.write(chunk) action = None if action == b'y': transplants.append(node) elif action == b'm': merges.append(node) elif action == b'c': break elif action == b'q': transplants = () merges = () break displayer.close() return (transplants, merges) @command( b'transplant', [ ( b's', b'source', b'', _(b'transplant changesets from REPO'), _(b'REPO'), ), ( b'b', b'branch', [], _(b'use this source changeset as head'), _(b'REV'), ), ( b'a', b'all', None, _(b'pull all changesets up to the --branch revisions'), ), (b'p', b'prune', [], _(b'skip over REV'), _(b'REV')), (b'm', b'merge', [], _(b'merge at REV'), _(b'REV')), ( b'', b'parent', b'', _(b'parent to choose when transplanting merge'), _(b'REV'), ), (b'e', b'edit', False, _(b'invoke editor on commit messages')), (b'', b'log', None, _(b'append transplant info to log message')), (b'', b'stop', False, _(b'stop interrupted transplant')), ( b'c', b'continue', None, _(b'continue last transplant session after fixing conflicts'), ), ( b'', b'filter', b'', _(b'filter changesets through command'), _(b'CMD'), ), ], _( b'hg transplant [-s REPO] [-b BRANCH [-a]] [-p REV] ' b'[-m REV] [REV]...' ), helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, ) def transplant(ui, repo, *revs, **opts): """transplant changesets from another branch Selected changesets will be applied on top of the current working directory with the log of the original changeset. The changesets are copied and will thus appear twice in the history with different identities. Consider using the graft command if everything is inside the same repository - it will use merges and will usually give a better result. Use the rebase extension if the changesets are unpublished and you want to move them instead of copying them. If --log is specified, log messages will have a comment appended of the form:: (transplanted from CHANGESETHASH) You can rewrite the changelog message with the --filter option. Its argument will be invoked with the current changelog message as $1 and the patch as $2. --source/-s specifies another repository to use for selecting changesets, just as if it temporarily had been pulled. If --branch/-b is specified, these revisions will be used as heads when deciding which changesets to transplant, just as if only these revisions had been pulled. If --all/-a is specified, all the revisions up to the heads specified with --branch will be transplanted. Example: - transplant all changes up to REV on top of your current revision:: hg transplant --branch REV --all You can optionally mark selected transplanted changesets as merge changesets. You will not be prompted to transplant any ancestors of a merged transplant, and you can merge descendants of them normally instead of transplanting them. Merge changesets may be transplanted directly by specifying the proper parent changeset by calling :hg:`transplant --parent`. If no merges or revisions are provided, :hg:`transplant` will start an interactive changeset browser. If a changeset application fails, you can fix the merge by hand and then resume where you left off by calling :hg:`transplant --continue/-c`. """ with repo.wlock(): return _dotransplant(ui, repo, *revs, **opts) def _dotransplant(ui, repo, *revs, **opts): def incwalk(repo, csets, match=util.always): for node in csets: if match(node): yield node def transplantwalk(repo, dest, heads, match=util.always): """Yield all nodes that are ancestors of a head but not ancestors of dest. If no heads are specified, the heads of repo will be used.""" if not heads: heads = repo.heads() ancestors = [] ctx = repo[dest] for head in heads: ancestors.append(ctx.ancestor(repo[head]).node()) for node in repo.changelog.nodesbetween(ancestors, heads)[0]: if match(node): yield node def checkopts(opts, revs): if opts.get(b'continue'): cmdutil.check_incompatible_arguments( opts, b'continue', [b'branch', b'all', b'merge'] ) return if opts.get(b'stop'): cmdutil.check_incompatible_arguments( opts, b'stop', [b'branch', b'all', b'merge'] ) return if not ( opts.get(b'source') or revs or opts.get(b'merge') or opts.get(b'branch') ): raise error.Abort( _( b'no source URL, branch revision, or revision ' b'list provided' ) ) if opts.get(b'all'): if not opts.get(b'branch'): raise error.Abort(_(b'--all requires a branch revision')) if revs: raise error.Abort( _(b'--all is incompatible with a revision list') ) opts = pycompat.byteskwargs(opts) checkopts(opts, revs) if not opts.get(b'log'): # deprecated config: transplant.log opts[b'log'] = ui.config(b'transplant', b'log') if not opts.get(b'filter'): # deprecated config: transplant.filter opts[b'filter'] = ui.config(b'transplant', b'filter') tp = transplanter(ui, repo, opts) p1 = repo.dirstate.p1() if len(repo) > 0 and p1 == nullid: raise error.Abort(_(b'no revision checked out')) if opts.get(b'continue'): if not tp.canresume(): raise error.StateError(_(b'no transplant to continue')) elif opts.get(b'stop'): if not tp.canresume(): raise error.StateError(_(b'no interrupted transplant found')) return tp.stop(ui, repo) else: cmdutil.checkunfinished(repo) cmdutil.bailifchanged(repo) sourcerepo = opts.get(b'source') if sourcerepo: peer = hg.peer(repo, opts, ui.expandpath(sourcerepo)) heads = pycompat.maplist(peer.lookup, opts.get(b'branch', ())) target = set(heads) for r in revs: try: target.add(peer.lookup(r)) except error.RepoError: pass source, csets, cleanupfn = bundlerepo.getremotechanges( ui, repo, peer, onlyheads=sorted(target), force=True ) else: source = repo heads = pycompat.maplist(source.lookup, opts.get(b'branch', ())) cleanupfn = None try: if opts.get(b'continue'): tp.resume(repo, source, opts) return tf = tp.transplantfilter(repo, source, p1) if opts.get(b'prune'): prune = { source[r].node() for r in scmutil.revrange(source, opts.get(b'prune')) } matchfn = lambda x: tf(x) and x not in prune else: matchfn = tf merges = pycompat.maplist(source.lookup, opts.get(b'merge', ())) revmap = {} if revs: for r in scmutil.revrange(source, revs): revmap[int(r)] = source[r].node() elif opts.get(b'all') or not merges: if source != repo: alltransplants = incwalk(source, csets, match=matchfn) else: alltransplants = transplantwalk( source, p1, heads, match=matchfn ) if opts.get(b'all'): revs = alltransplants else: revs, newmerges = browserevs(ui, source, alltransplants, opts) merges.extend(newmerges) for r in revs: revmap[source.changelog.rev(r)] = r for r in merges: revmap[source.changelog.rev(r)] = r tp.apply(repo, source, revmap, merges, opts) finally: if cleanupfn: cleanupfn() def continuecmd(ui, repo): """logic to resume an interrupted transplant using 'hg continue'""" with repo.wlock(): tp = transplanter(ui, repo, {}) return tp.resume(repo, repo, {}) revsetpredicate = registrar.revsetpredicate() @revsetpredicate(b'transplanted([set])') def revsettransplanted(repo, subset, x): """Transplanted changesets in set, or all transplanted changesets.""" if x: s = revset.getset(repo, subset, x) else: s = subset return smartset.baseset( [r for r in s if repo[r].extra().get(b'transplant_source')] ) templatekeyword = registrar.templatekeyword() @templatekeyword(b'transplanted', requires={b'ctx'}) def kwtransplanted(context, mapping): """String. The node identifier of the transplanted changeset if any.""" ctx = context.resource(mapping, b'ctx') n = ctx.extra().get(b'transplant_source') return n and hex(n) or b'' def extsetup(ui): statemod.addunfinished( b'transplant', fname=b'transplant/journal', clearable=True, continuefunc=continuecmd, statushint=_( b'To continue: hg transplant --continue\n' b'To stop: hg transplant --stop' ), cmdhint=_(b"use 'hg transplant --continue' or 'hg transplant --stop'"), ) # tell hggettext to extract docstrings from these functions: i18nfunctions = [revsettransplanted, kwtransplanted]