Mercurial > hg-stable
changeset 45239:ae5c1a3bc339
commitctx: extract the function in a dedicated module
the function have few callers (< 15) is quite long a mostly independent from the
repository itself. It seems like a good candidate to reduce the bloatness of the
localrepository class. Extracting it will help us cleaning the code up and
splitting it into more reasonable-size function.
We don't use a copy trick because the amount of code extract is quite small
(<5%) and the de-indent means every single line change anyway. So this is not
deemed valuable to do so.
This is part of a larger refactoring/cleanup of the commitctx code to clarify
and augment the logic gathering metadata useful for copy tracing. The current
code is a tad too long and entangled to make such update easy.
Differential Revision: https://phab.mercurial-scm.org/D8709
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Mon, 06 Jul 2020 23:14:52 +0200 |
| parents | 31393ec06cef |
| children | ce9ee81df9ff |
| files | mercurial/commit.py mercurial/localrepo.py |
| diffstat | 2 files changed, 217 insertions(+), 196 deletions(-) [+] |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mercurial/commit.py Mon Jul 06 23:14:52 2020 +0200 @@ -0,0 +1,215 @@ +# commit.py - fonction to perform commit +# +# This software may be used and distributed according to the terms of the +# GNU General Public License version 2 or any later version. + +from __future__ import absolute_import + +import errno +import weakref + +from .i18n import _ +from .node import ( + hex, + nullrev, +) + +from . import ( + metadata, + phases, + scmutil, + subrepoutil, +) + + +def commitctx(repo, ctx, error=False, origctx=None): + """Add a new revision to the target repository. + Revision information is passed via the context argument. + + ctx.files() should list all files involved in this commit, i.e. + modified/added/removed files. On merge, it may be wider than the + ctx.files() to be committed, since any file nodes derived directly + from p1 or p2 are excluded from the committed ctx.files(). + + origctx is for convert to work around the problem that bug + fixes to the files list in changesets change hashes. For + convert to be the identity, it can pass an origctx and this + function will use the same files list when it makes sense to + do so. + """ + repo = repo.unfiltered() + + p1, p2 = ctx.p1(), ctx.p2() + user = ctx.user() + + if repo.filecopiesmode == b'changeset-sidedata': + writechangesetcopy = True + writefilecopymeta = True + writecopiesto = None + else: + writecopiesto = repo.ui.config(b'experimental', b'copies.write-to') + writefilecopymeta = writecopiesto != b'changeset-only' + writechangesetcopy = writecopiesto in ( + b'changeset-only', + b'compatibility', + ) + p1copies, p2copies = None, None + if writechangesetcopy: + p1copies = ctx.p1copies() + p2copies = ctx.p2copies() + filesadded, filesremoved = None, None + with repo.lock(), repo.transaction(b"commit") as tr: + trp = weakref.proxy(tr) + + if ctx.manifestnode(): + # reuse an existing manifest revision + repo.ui.debug(b'reusing known manifest\n') + mn = ctx.manifestnode() + files = ctx.files() + if writechangesetcopy: + filesadded = ctx.filesadded() + filesremoved = ctx.filesremoved() + elif not ctx.files(): + repo.ui.debug(b'reusing manifest from p1 (no file change)\n') + mn = p1.manifestnode() + files = [] + else: + m1ctx = p1.manifestctx() + m2ctx = p2.manifestctx() + mctx = m1ctx.copy() + + m = mctx.read() + m1 = m1ctx.read() + m2 = m2ctx.read() + + # check in files + added = [] + filesadded = [] + removed = list(ctx.removed()) + touched = [] + linkrev = len(repo) + repo.ui.note(_(b"committing files:\n")) + uipathfn = scmutil.getuipathfn(repo) + for f in sorted(ctx.modified() + ctx.added()): + repo.ui.note(uipathfn(f) + b"\n") + try: + fctx = ctx[f] + if fctx is None: + removed.append(f) + else: + added.append(f) + m[f], is_touched = repo._filecommit( + fctx, m1, m2, linkrev, trp, writefilecopymeta, + ) + if is_touched: + touched.append(f) + if writechangesetcopy and is_touched == 'added': + filesadded.append(f) + m.setflag(f, fctx.flags()) + except OSError: + repo.ui.warn(_(b"trouble committing %s!\n") % uipathfn(f)) + raise + except IOError as inst: + errcode = getattr(inst, 'errno', errno.ENOENT) + if error or errcode and errcode != errno.ENOENT: + repo.ui.warn( + _(b"trouble committing %s!\n") % uipathfn(f) + ) + raise + + # update manifest + removed = [f for f in removed if f in m1 or f in m2] + drop = sorted([f for f in removed if f in m]) + for f in drop: + del m[f] + if p2.rev() != nullrev: + rf = metadata.get_removal_filter(ctx, (p1, p2, m1, m2)) + removed = [f for f in removed if not rf(f)] + + touched.extend(removed) + + if writechangesetcopy: + filesremoved = removed + + files = touched + md = None + if not files: + # if no "files" actually changed in terms of the changelog, + # try hard to detect unmodified manifest entry so that the + # exact same commit can be reproduced later on convert. + md = m1.diff(m, scmutil.matchfiles(repo, ctx.files())) + if not files and md: + repo.ui.debug( + b'not reusing manifest (no file change in ' + b'changelog, but manifest differs)\n' + ) + if files or md: + repo.ui.note(_(b"committing manifest\n")) + # we're using narrowmatch here since it's already applied at + # other stages (such as dirstate.walk), so we're already + # ignoring things outside of narrowspec in most cases. The + # one case where we might have files outside the narrowspec + # at this point is merges, and we already error out in the + # case where the merge has files outside of the narrowspec, + # so this is safe. + mn = mctx.write( + trp, + linkrev, + p1.manifestnode(), + p2.manifestnode(), + added, + drop, + match=repo.narrowmatch(), + ) + else: + repo.ui.debug( + b'reusing manifest from p1 (listed files ' + b'actually unchanged)\n' + ) + mn = p1.manifestnode() + + if writecopiesto == b'changeset-only': + # If writing only to changeset extras, use None to indicate that + # no entry should be written. If writing to both, write an empty + # entry to prevent the reader from falling back to reading + # filelogs. + p1copies = p1copies or None + p2copies = p2copies or None + filesadded = filesadded or None + filesremoved = filesremoved or None + + if origctx and origctx.manifestnode() == mn: + files = origctx.files() + + # update changelog + repo.ui.note(_(b"committing changelog\n")) + repo.changelog.delayupdate(tr) + n = repo.changelog.add( + mn, + files, + ctx.description(), + trp, + p1.node(), + p2.node(), + user, + ctx.date(), + ctx.extra().copy(), + p1copies, + p2copies, + filesadded, + filesremoved, + ) + xp1, xp2 = p1.hex(), p2 and p2.hex() or b'' + repo.hook( + b'pretxncommit', throw=True, node=hex(n), parent1=xp1, parent2=xp2, + ) + # set the new commit is proper phase + targetphase = subrepoutil.newcommitphase(repo.ui, ctx) + if targetphase: + # retract boundary do not alter parent changeset. + # if a parent have higher the resulting phase will + # be compliant anyway + # + # if minimal phase was 0 we don't need to retract anything + phases.registernew(repo, tr, targetphase, [n]) + return n
--- a/mercurial/localrepo.py Mon Jul 06 19:13:19 2020 +0200 +++ b/mercurial/localrepo.py Mon Jul 06 23:14:52 2020 +0200 @@ -32,6 +32,7 @@ bundle2, changegroup, color, + commit, context, dirstate, dirstateguard, @@ -46,7 +47,6 @@ match as matchmod, mergestate as mergestatemod, mergeutil, - metadata, namespaces, narrowspec, obsolete, @@ -3067,201 +3067,7 @@ @unfilteredmethod def commitctx(self, ctx, error=False, origctx=None): - """Add a new revision to current repository. - Revision information is passed via the context argument. - - ctx.files() should list all files involved in this commit, i.e. - modified/added/removed files. On merge, it may be wider than the - ctx.files() to be committed, since any file nodes derived directly - from p1 or p2 are excluded from the committed ctx.files(). - - origctx is for convert to work around the problem that bug - fixes to the files list in changesets change hashes. For - convert to be the identity, it can pass an origctx and this - function will use the same files list when it makes sense to - do so. - """ - - p1, p2 = ctx.p1(), ctx.p2() - user = ctx.user() - - if self.filecopiesmode == b'changeset-sidedata': - writechangesetcopy = True - writefilecopymeta = True - writecopiesto = None - else: - writecopiesto = self.ui.config(b'experimental', b'copies.write-to') - writefilecopymeta = writecopiesto != b'changeset-only' - writechangesetcopy = writecopiesto in ( - b'changeset-only', - b'compatibility', - ) - p1copies, p2copies = None, None - if writechangesetcopy: - p1copies = ctx.p1copies() - p2copies = ctx.p2copies() - filesadded, filesremoved = None, None - with self.lock(), self.transaction(b"commit") as tr: - trp = weakref.proxy(tr) - - if ctx.manifestnode(): - # reuse an existing manifest revision - self.ui.debug(b'reusing known manifest\n') - mn = ctx.manifestnode() - files = ctx.files() - if writechangesetcopy: - filesadded = ctx.filesadded() - filesremoved = ctx.filesremoved() - elif not ctx.files(): - self.ui.debug(b'reusing manifest from p1 (no file change)\n') - mn = p1.manifestnode() - files = [] - else: - m1ctx = p1.manifestctx() - m2ctx = p2.manifestctx() - mctx = m1ctx.copy() - - m = mctx.read() - m1 = m1ctx.read() - m2 = m2ctx.read() - - # check in files - added = [] - filesadded = [] - removed = list(ctx.removed()) - touched = [] - linkrev = len(self) - self.ui.note(_(b"committing files:\n")) - uipathfn = scmutil.getuipathfn(self) - for f in sorted(ctx.modified() + ctx.added()): - self.ui.note(uipathfn(f) + b"\n") - try: - fctx = ctx[f] - if fctx is None: - removed.append(f) - else: - added.append(f) - m[f], is_touched = self._filecommit( - fctx, m1, m2, linkrev, trp, writefilecopymeta, - ) - if is_touched: - touched.append(f) - if writechangesetcopy and is_touched == 'added': - filesadded.append(f) - m.setflag(f, fctx.flags()) - except OSError: - self.ui.warn( - _(b"trouble committing %s!\n") % uipathfn(f) - ) - raise - except IOError as inst: - errcode = getattr(inst, 'errno', errno.ENOENT) - if error or errcode and errcode != errno.ENOENT: - self.ui.warn( - _(b"trouble committing %s!\n") % uipathfn(f) - ) - raise - - # update manifest - removed = [f for f in removed if f in m1 or f in m2] - drop = sorted([f for f in removed if f in m]) - for f in drop: - del m[f] - if p2.rev() != nullrev: - rf = metadata.get_removal_filter(ctx, (p1, p2, m1, m2)) - removed = [f for f in removed if not rf(f)] - - touched.extend(removed) - - if writechangesetcopy: - filesremoved = removed - - files = touched - md = None - if not files: - # if no "files" actually changed in terms of the changelog, - # try hard to detect unmodified manifest entry so that the - # exact same commit can be reproduced later on convert. - md = m1.diff(m, scmutil.matchfiles(self, ctx.files())) - if not files and md: - self.ui.debug( - b'not reusing manifest (no file change in ' - b'changelog, but manifest differs)\n' - ) - if files or md: - self.ui.note(_(b"committing manifest\n")) - # we're using narrowmatch here since it's already applied at - # other stages (such as dirstate.walk), so we're already - # ignoring things outside of narrowspec in most cases. The - # one case where we might have files outside the narrowspec - # at this point is merges, and we already error out in the - # case where the merge has files outside of the narrowspec, - # so this is safe. - mn = mctx.write( - trp, - linkrev, - p1.manifestnode(), - p2.manifestnode(), - added, - drop, - match=self.narrowmatch(), - ) - else: - self.ui.debug( - b'reusing manifest from p1 (listed files ' - b'actually unchanged)\n' - ) - mn = p1.manifestnode() - - if writecopiesto == b'changeset-only': - # If writing only to changeset extras, use None to indicate that - # no entry should be written. If writing to both, write an empty - # entry to prevent the reader from falling back to reading - # filelogs. - p1copies = p1copies or None - p2copies = p2copies or None - filesadded = filesadded or None - filesremoved = filesremoved or None - - if origctx and origctx.manifestnode() == mn: - files = origctx.files() - - # update changelog - self.ui.note(_(b"committing changelog\n")) - self.changelog.delayupdate(tr) - n = self.changelog.add( - mn, - files, - ctx.description(), - trp, - p1.node(), - p2.node(), - user, - ctx.date(), - ctx.extra().copy(), - p1copies, - p2copies, - filesadded, - filesremoved, - ) - xp1, xp2 = p1.hex(), p2 and p2.hex() or b'' - self.hook( - b'pretxncommit', - throw=True, - node=hex(n), - parent1=xp1, - parent2=xp2, - ) - # set the new commit is proper phase - targetphase = subrepoutil.newcommitphase(self.ui, ctx) - if targetphase: - # retract boundary do not alter parent changeset. - # if a parent have higher the resulting phase will - # be compliant anyway - # - # if minimal phase was 0 we don't need to retract anything - phases.registernew(self, tr, targetphase, [n]) - return n + return commit.commitctx(self, ctx, error=error, origctx=origctx) @unfilteredmethod def destroying(self):