( )⚙ D2862 uncommit: leave empty commit if all files are uncommitted

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Differential D2862

uncommit: leave empty commit if all files are uncommitted
ClosedPublic

Authored by martinvonz on Mar 14 2018, 2:21 PM.

Details

Reviewers
durham
ryanmce
Group Reviewers
hg-reviewers
Commits
rHG28ba7d111337: uncommit: leave empty commit if all files are uncommitted
rHG29b9325d7f4d: uncommit: leave empty commit if all files are uncommitted
Summary

We had instructions for our internal users to add copy information
after commit like this:

hg uncommit <srcfile> <dstfile>
hg cp --after <srcfile> <dstfile>
hg amend

That usually works, but if the rename was the only change in that
commit, then the commit would get pruned. It's easy to fix the recipe:
just pass the --keep option. However, it seems too subtle, so I think
this is an indication that the commit should not be pruned if any
patterns were given.

Diff Detail

Repository
rHG Mercurial
Lint
Lint Skipped
Unit
Unit Tests Skipped

Event Timeline

martinvonz created this revision.Mar 14 2018, 2:21 PM
pulkit added a subscriber: pulkit.Mar 17 2018, 7:45 AM

Queuing this many thanks. Can you please send a followup with documenting the behavior of command related to pruning the empty changeset?

Closed by commit rHG29b9325d7f4d: uncommit: leave empty commit if all files are uncommitted (authored by martinvonz). · Explain WhyMar 17 2018, 7:59 AM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mhgext/uncommit.py (3 lines)
Mtests/test-uncommit.t (44 lines)

Diff 7039

hgext/uncommit.py

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)
newid = _commitfiltered(repo, old, match, opts.get('keep')) allowempty = opts.get('keep') or pats
newid = _commitfiltered(repo, old, match, allowempty)
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
mapping[old.node()] = (newid,) mapping[old.node()] = (newid,)

tests/test-uncommit.t

M files M files
$ hg uncommit $ hg uncommit
abort: uncommitted changes abort: uncommitted changes
[255] [255]
$ hg uncommit files $ hg uncommit files
$ cat files $ cat files
abcde abcde
foo foo
$ hg commit -m "files abcde + foo" $ hg commit --amend -m "files abcde + foo"
Testing the 'experimental.uncommitondirtywdir' config Testing the 'experimental.uncommitondirtywdir' config
$ echo "bar" >> files $ echo "bar" >> files
$ hg uncommit $ hg uncommit
abort: uncommitted changes abort: uncommitted changes
[255] [255]
$ hg uncommit --config experimental.uncommitondirtywdir=True $ hg uncommit --config experimental.uncommitondirtywdir=True
diff -r 69a232e754b0 -r abf2df566fc1 files diff -r 69a232e754b0 -r abf2df566fc1 files
--- a/files Thu Jan 01 00:00:00 1970 +0000 --- a/files Thu Jan 01 00:00:00 1970 +0000
+++ b/files Thu Jan 01 00:00:00 1970 +0000 +++ b/files Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,1 @@ @@ -1,1 +1,1 @@
-ab -ab
+abc +abc
$ hg bookmark $ hg bookmark
foo 9:48e5bd7cd583 foo 10:48e5bd7cd583
$ hg uncommit $ hg uncommit
3 new orphan changesets 3 new orphan changesets
$ hg status $ hg status
M files M files
A file-abc A file-abc
$ hg heads -T '{rev}:{node} {desc}' $ hg heads -T '{rev}:{node} {desc}'
9:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo (no-eol) 10:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo (no-eol)
$ hg bookmark $ hg bookmark
foo 9:48e5bd7cd583 foo 10:48e5bd7cd583
$ hg commit -m 'new abc' $ hg commit -m 'new abc'
created new head created new head
Partial uncommit in the middle, does not move bookmark Partial uncommit in the middle, does not move bookmark
$ hg checkout '.^' $ hg checkout '.^'
1 files updated, 0 files merged, 1 files removed, 0 files unresolved 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -r . -p -T '{rev}:{node} {desc}' $ hg log -r . -p -T '{rev}:{node} {desc}'
1:69a232e754b08d568c4899475faf2eb44b857802 added file-abdiff -r 3004d2d9b508 -r 69a232e754b0 file-ab 1:69a232e754b08d568c4899475faf2eb44b857802 added file-abdiff -r 3004d2d9b508 -r 69a232e754b0 file-ab
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/file-ab Thu Jan 01 00:00:00 1970 +0000 +++ b/file-ab Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@ @@ -0,0 +1,1 @@
+ab +ab
diff -r 3004d2d9b508 -r 69a232e754b0 files diff -r 3004d2d9b508 -r 69a232e754b0 files
--- a/files Thu Jan 01 00:00:00 1970 +0000 --- a/files Thu Jan 01 00:00:00 1970 +0000
+++ b/files Thu Jan 01 00:00:00 1970 +0000 +++ b/files Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,1 @@ @@ -1,1 +1,1 @@
-a -a
+ab +ab
$ hg bookmark $ hg bookmark
foo 9:48e5bd7cd583 foo 10:48e5bd7cd583
$ hg uncommit file-ab $ hg uncommit file-ab
1 new orphan changesets 1 new orphan changesets
$ hg status $ hg status
A file-ab A file-ab
$ hg heads -T '{rev}:{node} {desc}\n' $ hg heads -T '{rev}:{node} {desc}\n'
11:8eb87968f2edb7f27f27fe676316e179de65fff6 added file-ab 12:8eb87968f2edb7f27f27fe676316e179de65fff6 added file-ab
10:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc 11:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc
9:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo 10:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo
$ hg bookmark $ hg bookmark
foo 9:48e5bd7cd583 foo 10:48e5bd7cd583
$ hg commit -m 'update ab' $ hg commit -m 'update ab'
$ hg status $ hg status
$ hg heads -T '{rev}:{node} {desc}\n' $ hg heads -T '{rev}:{node} {desc}\n'
12:f21039c59242b085491bb58f591afc4ed1c04c09 update ab 13:f21039c59242b085491bb58f591afc4ed1c04c09 update ab
10:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc 11:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc
9:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo 10:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo
$ hg log -G -T '{rev}:{node} {desc}' --hidden $ hg log -G -T '{rev}:{node} {desc}' --hidden
@ 12:f21039c59242b085491bb58f591afc4ed1c04c09 update ab @ 13:f21039c59242b085491bb58f591afc4ed1c04c09 update ab
| |
o 11:8eb87968f2edb7f27f27fe676316e179de65fff6 added file-ab o 12:8eb87968f2edb7f27f27fe676316e179de65fff6 added file-ab
| |
| * 10:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc | * 11:5dc89ca4486f8a88716c5797fa9f498d13d7c2e1 new abc
| | | |
| | * 9:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo | | * 10:48e5bd7cd583eb24164ef8b89185819c84c96ed7 files abcde + foo
| | | | | |
| | | x 8:83815831694b1271e9f207cb1b79b2b19275edcb files abcde + foo | | | x 9:8a6b58c173ca6a2e3745d8bd86698718d664bc6c files abcde + foo
| | |/
| | | x 8:39ad452c7f684a55d161c574340c5766c4569278 update files for abcde
| | |/ | | |/
| | | x 7:0977fa602c2fd7d8427ed4e7ee15ea13b84c9173 update files for abcde | | | x 7:0977fa602c2fd7d8427ed4e7ee15ea13b84c9173 update files for abcde
| | |/ | | |/
| | * 6:3727deee06f72f5ffa8db792ee299cf39e3e190b new change abcde | | * 6:3727deee06f72f5ffa8db792ee299cf39e3e190b new change abcde
| | | | | |
| | | x 5:0c07a3ccda771b25f1cb1edbd02e683723344ef1 new change abcde | | | x 5:0c07a3ccda771b25f1cb1edbd02e683723344ef1 new change abcde
| | |/ | | |/
| | | x 4:6c4fd43ed714e7fcd8adbaa7b16c953c2e985b60 added file-abcde | | | x 4:6c4fd43ed714e7fcd8adbaa7b16c953c2e985b60 added file-abcde
| | |/ | | |/
| | * 3:6db330d65db434145c0b59d291853e9a84719b24 added file-abcd | | * 3:6db330d65db434145c0b59d291853e9a84719b24 added file-abcd
| | | | | |
| | x 2:abf2df566fc193b3ac34d946e63c1583e4d4732b added file-abc | | x 2:abf2df566fc193b3ac34d946e63c1583e4d4732b added file-abc
| |/ | |/
| x 1:69a232e754b08d568c4899475faf2eb44b857802 added file-ab | x 1:69a232e754b08d568c4899475faf2eb44b857802 added file-ab
|/ |/
o 0:3004d2d9b50883c1538fc754a3aeb55f1b4084f6 added file-a o 0:3004d2d9b50883c1538fc754a3aeb55f1b4084f6 added file-a
Uncommit with draft parent Uncommit with draft parent
$ hg uncommit $ hg uncommit
$ hg phase -r . $ hg phase -r .
11: draft 12: draft
$ hg commit -m 'update ab again' $ hg commit -m 'update ab again'
Uncommit with public parent Uncommit with public parent
$ hg phase -p "::.^" $ hg phase -p "::.^"
$ hg uncommit $ hg uncommit
$ hg phase -r . $ hg phase -r .
11: public 12: public
Partial uncommit with public parent Partial uncommit with public parent
$ echo xyz > xyz $ echo xyz > xyz
$ hg add xyz $ hg add xyz
$ hg commit -m "update ab and add xyz" $ hg commit -m "update ab and add xyz"
$ hg uncommit xyz $ hg uncommit xyz
$ hg status $ hg status
A xyz A xyz
$ hg phase -r . $ hg phase -r .
15: draft 16: draft
$ hg phase -r ".^" $ hg phase -r ".^"
11: public 12: public
Uncommit leaving an empty changeset Uncommit leaving 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