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Differential D5970

uncommit: add config option to keep commit by default
ClosedPublic

Authored by martinvonz on Feb 15 2019, 2:12 PM.

Details

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Group Reviewers
hg-reviewers
Commits
rHG1040d54eb7eb: uncommit: add config option to keep commit by default
rHG8980b5d6d9d9: uncommit: add config option to keep commit by default
Summary

We have a Google-internal extension that keeps track of "review units"
(like Phabricator reviews, or Gerrit's Change-Id). This information is
stored outside of the commit. It is updated with rewrites. Every now
and then we get reports from users who are confused because `hg
uncommit` lost track of their review. Keeping the empty commit by
default would reduce this confusion. It may also cause confusion about
the empty commit. This patch adds a config option that lets us easily
test both behaviors on our users.

Diff Detail

Repository
rHG Mercurial
Lint
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Unit
Unit Tests Skipped

Event Timeline

martinvonz created this revision.Feb 15 2019, 2:12 PM
martinvonz updated this revision to Diff 14109.Feb 15 2019, 3:19 PM
martinvonz updated this revision to Diff 14148.Feb 20 2019, 3:23 PM
Closed by commit rHG8980b5d6d9d9: uncommit: add config option to keep commit by default (authored by martinvonz). · Explain WhyFeb 20 2019, 3:31 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mhgext/uncommit.py (13 lines)
Mtests/test-uncommit.t (26 lines)

Diff 14102

hgext/uncommit.py

configtable = {} configtable = {}
configitem = registrar.configitem(configtable) configitem = registrar.configitem(configtable)
configitem('experimental', 'uncommitondirtywdir', configitem('experimental', 'uncommitondirtywdir',
default=False, default=False,
) )
configitem('experimental', 'uncommit.keep',
default=False,
)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or # be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified. # leave the attribute unspecified.
testedwith = 'ships-with-hg-core' testedwith = 'ships-with-hg-core'
def _commitfiltered(repo, ctx, match, keepcommit): def _commitfiltered(repo, ctx, match, keepcommit):
"""Recommit ctx with changed files not in match. Return the new """Recommit ctx with changed files not in match. Return the new
for dst, src in oldcopies.iteritems()) for dst, src in oldcopies.iteritems())
# Adjust the dirstate copies # Adjust the dirstate copies
for dst, src in copies.iteritems(): for dst, src in copies.iteritems():
if (src not in newctx or dst in newctx or ds[dst] != 'a'): if (src not in newctx or dst in newctx or ds[dst] != 'a'):
src = None src = None
ds.copy(src, dst) ds.copy(src, dst)
@command('uncommit', @command('uncommit',
[('', 'keep', False, _('allow an empty commit after uncommiting')), [('', 'keep', None, _('allow an empty commit after uncommiting')),
] + commands.walkopts, ] + commands.walkopts,
_('[OPTION]... [FILE]...'), _('[OPTION]... [FILE]...'),
helpcategory=command.CATEGORY_CHANGE_MANAGEMENT) helpcategory=command.CATEGORY_CHANGE_MANAGEMENT)
def uncommit(ui, repo, *pats, **opts): def uncommit(ui, repo, *pats, **opts):
"""uncommit part or all of a local changeset """uncommit part or all of a local changeset
This command undoes the effect of a local commit, returning the affected This command undoes the effect of a local commit, returning the affected
files to their uncommitted state. This means that files modified or files to their uncommitted state. This means that files modified or
cmdutil.bailifchanged(repo) cmdutil.bailifchanged(repo)
old = repo['.'] old = repo['.']
rewriteutil.precheck(repo, [old.rev()], 'uncommit') rewriteutil.precheck(repo, [old.rev()], 'uncommit')
if len(old.parents()) > 1: if len(old.parents()) > 1:
raise error.Abort(_("cannot uncommit merge changeset")) raise error.Abort(_("cannot uncommit merge changeset"))
with repo.transaction('uncommit'): with repo.transaction('uncommit'):
match = scmutil.match(old, pats, opts) match = scmutil.match(old, pats, opts)
keepcommit = opts.get('keep') or pats keepcommit = pats
if not keepcommit:
if opts.get('keep') is not None:
keepcommit = opts.get('keep')
else:
keepcommit = ui.configbool('experimental', 'uncommit.keep')
newid = _commitfiltered(repo, old, match, keepcommit) newid = _commitfiltered(repo, old, match, keepcommit)
if newid is None: if newid is None:
ui.status(_("nothing to uncommit\n")) ui.status(_("nothing to uncommit\n"))
return 1 return 1
mapping = {} mapping = {}
if newid != old.p1().node(): if newid != old.p1().node():
# Move local changes on filtered changeset # Move local changes on filtered changeset

tests/test-uncommit.t

$ hg uncommit xyz $ hg uncommit xyz
$ hg status $ hg status
A xyz A xyz
$ hg phase -r . $ hg phase -r .
18: draft 18: draft
$ hg phase -r ".^" $ hg phase -r ".^"
12: public 12: public
Uncommit leaving an empty changeset Uncommit with --keep or experimental.uncommit.keep leaves an empty changeset
$ cd $TESTTMP $ cd $TESTTMP
$ hg init repo1 $ hg init repo1
$ cd repo1 $ cd repo1
$ hg debugdrawdag <<'EOS' $ hg debugdrawdag <<'EOS'
> Q > Q
> | > |
> P > P
> EOS > EOS
$ hg up Q -q $ hg up Q -q
$ hg uncommit --keep $ hg uncommit --keep
all files uncommitted, the commit is now empty all files uncommitted, the commit is now empty
$ hg log -G -T '{desc} FILES: {files}' $ hg log -G -T '{desc} FILES: {files}'
@ Q FILES: @ Q FILES:
| |
| x Q FILES: Q | x Q FILES: Q
|/ |/
o P FILES: P o P FILES: P
$ cat >> .hg/hgrc <<EOF
> [experimental]
> uncommit.keep=True
> EOF
$ hg ci --amend
$ hg uncommit
all files uncommitted, the commit is now empty
$ hg log -G -T '{desc} FILES: {files}'
@ Q FILES:
|
| x Q FILES: Q
|/
o P FILES: P
$ hg status $ hg status
A Q A Q
$ hg ci --amend
$ hg uncommit --no-keep
$ hg log -G -T '{desc} FILES: {files}'
x Q FILES: Q
|
@ P FILES: P
$ hg status
A Q
$ cd .. $ cd ..
$ rm -rf repo1 $ rm -rf repo1
Testing uncommit while merge Testing uncommit while merge
$ hg init repo2 $ hg init repo2
$ cd repo2 $ cd repo2