view tests/test-uncommit.t @ 5601:3946ee4ee3ae

topic: add a `exp….topic.linear-merge` option to allow some oedipus

If this option is set to `from-branch`, a user can call `hg merge some-topic`
from a bare branch even if `some-topic` is a direct descendant of the current
working copy parents. This was previously denied if the changesets was on the
same branch, since the result would be an "oedipus merge".

Some user have been requesting this, and this type of merge is one of Gitlab
standard way of merging a "Merge Request". That new option will unlock issue
`heptapod#200` and make this mode available for those who wants it.

  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution.allowdivergence = True
  > [extensions]
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ glog() {
  >   hg log -G --template '{rev}:{node|short}@{branch}({separate("/", obsolete, phase)}) {desc|firstline}\n' "$@"
  > }

  $ hg init repo
  $ cd repo

Cannot uncommit null changeset

  $ hg uncommit
  abort: cannot uncommit the null revision
  (no changeset checked out)
  [255]

Cannot uncommit public changeset

  $ echo a > a
  $ hg ci -Am adda a
  $ hg phase --public .
  $ hg uncommit
  abort: cannot uncommit public changesets: 07f494440405
  (see 'hg help phases' for details)
  [255]
  $ hg phase --force --draft .

Cannot uncommit merge

  $ hg up -q null
  $ echo b > b
  $ echo c > c
  $ echo d > d
  $ echo f > f
  $ echo g > g
  $ echo j > j
  $ echo m > m
  $ echo n > n
  $ echo o > o
  $ hg ci -Am addmore
  adding b
  adding c
  adding d
  adding f
  adding g
  adding j
  adding m
  adding n
  adding o
  created new head
  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg uncommit
  abort: cannot uncommit while merging
  [255]
  $ hg ci -m merge
  $ hg uncommit
  abort: cannot uncommit merge changeset
  [255]

Prepare complicated changeset

  $ hg branch bar
  marked working directory as branch bar
  (branches are permanent and global, did you want a bookmark?)
  $ hg cp a aa
  $ echo b >> b
  $ hg rm c
  $ echo d >> d
  $ echo e > e
  $ hg mv f ff
  $ hg mv g h
  $ echo j >> j
  $ echo k > k
  $ echo l > l
  $ hg rm m
  $ hg rm n
  $ echo o >> o
  $ hg ci -Am touncommit
  adding e
  adding k
  adding l
  $ hg st --copies --change .
  M b
  M d
  M j
  M o
  A aa
    a
  A e
  A ff
    f
  A h
    g
  A k
  A l
  R c
  R f
  R g
  R m
  R n
  $ hg man -r .
  a
  aa
  b
  d
  e
  ff
  h
  j
  k
  l
  o

Add a couple of bookmarks

  $ glog --hidden
  @  3:5eb72dbe0cb4@bar(draft) touncommit
  |
  o    2:f63b90038565@default(draft) merge
  |\
  | o  1:f15c744d48e8@default(draft) addmore
  |
  o  0:07f494440405@default(draft) adda
  
  $ hg bookmark -r 2 unrelated
  $ hg bookmark touncommit-bm
  $ hg bookmark --inactive touncommit-bm-inactive
  $ hg bookmarks
   * touncommit-bm             3:5eb72dbe0cb4
     touncommit-bm-inactive    3:5eb72dbe0cb4
     unrelated                 2:f63b90038565

Prepare complicated working directory

  $ hg branch foo
  marked working directory as branch foo
  $ hg mv ff f
  $ hg mv h i
  $ hg rm j
  $ hg rm k
  $ echo l >> l
  $ echo m > m
  $ echo o > o

Test uncommit without argument, should be a no-op

  $ hg uncommit
  abort: nothing to uncommit
  (use --all to uncommit all files)
  [255]
  $ hg bookmarks
   * touncommit-bm             3:5eb72dbe0cb4
     touncommit-bm-inactive    3:5eb72dbe0cb4
     unrelated                 2:f63b90038565

Test no matches

  $ hg uncommit --include nothere
  abort: nothing to uncommit
  (use --all to uncommit all files)
  [255]

Enjoy uncommit

  $ hg uncommit aa b c f ff g h j k l m o
  $ hg branch
  foo
  $ hg st --copies
  M b
  A aa
    a
  A i
    g
  A l
  R c
  R g
  R j
  R m
  $ cat aa
  a
  $ cat b
  b
  b
  $ cat l
  l
  l
  $ cat m
  m
  $ test -f c && echo 'error: c was removed!'
  [1]
  $ test -f j && echo 'error: j was removed!'
  [1]
  $ test -f k && echo 'error: k was removed!'
  [1]
  $ hg st --copies --change .
  M d
  A e
  R n
  $ hg man -r .
  a
  b
  c
  d
  e
  f
  g
  j
  m
  o
  $ hg cat -r . d
  d
  d
  $ hg cat -r . e
  e
  $ glog --hidden
  @  4:e8db4aa611f6@bar(draft) touncommit
  |
  | x  3:5eb72dbe0cb4@bar(obsolete/draft) touncommit
  |/
  o    2:f63b90038565@default(draft) merge
  |\
  | o  1:f15c744d48e8@default(draft) addmore
  |
  o  0:07f494440405@default(draft) adda
  
  $ hg bookmarks
   * touncommit-bm             4:e8db4aa611f6
     touncommit-bm-inactive    4:e8db4aa611f6
     unrelated                 2:f63b90038565
  $ hg debugobsolete
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 e8db4aa611f6d5706374288e6898e498f5c44098 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}

Test phase is preserved, no local changes

  $ hg up -C 3 --hidden
  8 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (leaving bookmark touncommit-bm)
  updated to hidden changeset 5eb72dbe0cb4
  (hidden revision '5eb72dbe0cb4' was rewritten as: e8db4aa611f6)
  working directory parent is obsolete! (5eb72dbe0cb4)
  (use 'hg evolve' to update to its successor: e8db4aa611f6)
  $ hg --config extensions.purge= purge
  $ hg uncommit -I 'set:added() and e'
  2 new content-divergent changesets
  $ hg st --copies
  A e
  $ hg st --copies --change .
  M b
  M d
  M j
  M o
  A aa
    a
  A ff
    f
  A h
    g
  A k
  A l
  R c
  R f
  R g
  R m
  R n
  $ glog --hidden
  @  5:a1d4c1ad76cc@bar(draft) touncommit
  |
  | *  4:e8db4aa611f6@bar(draft) touncommit
  |/
  | x  3:5eb72dbe0cb4@bar(obsolete/draft) touncommit
  |/
  o    2:f63b90038565@default(draft) merge
  |\
  | o  1:f15c744d48e8@default(draft) addmore
  |
  o  0:07f494440405@default(draft) adda
  
  $ hg debugobsolete
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 e8db4aa611f6d5706374288e6898e498f5c44098 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 a1d4c1ad76cc7eb5e8a36ef52396da334b6d59c5 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}

Test --all

  $ hg up -C 3 --hidden
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 5eb72dbe0cb4
  (hidden revision '5eb72dbe0cb4' has diverged)
  working directory parent is obsolete! (5eb72dbe0cb4)
  (5eb72dbe0cb4 has diverged, use 'hg evolve --list --content-divergent' to resolve the issue)
  $ hg --config extensions.purge= purge
  $ hg uncommit --all -X e
  1 new content-divergent changesets
  $ hg st --copies
  M b
  M d
  M j
  M o
  A aa
    a
  A ff
    f
  A h
    g
  A k
  A l
  R c
  R f
  R g
  R m
  R n
  $ hg st --copies --change .
  A e

  $ hg debugobsolete
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 e8db4aa611f6d5706374288e6898e498f5c44098 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 a1d4c1ad76cc7eb5e8a36ef52396da334b6d59c5 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 c4cbebac3751269bdf12d1466deabcc78521d272 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}

Display a warning if nothing left

  $ hg uncommit e
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ hg debugobsolete
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 e8db4aa611f6d5706374288e6898e498f5c44098 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 a1d4c1ad76cc7eb5e8a36ef52396da334b6d59c5 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  5eb72dbe0cb409d094e3b4ae8eaa30071c1b8730 c4cbebac3751269bdf12d1466deabcc78521d272 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}
  c4cbebac3751269bdf12d1466deabcc78521d272 4f1c269eab68720f54e88ce3c1dc02b2858b6b89 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'uncommit', 'user': 'test'}

Test instability warning

  $ hg ci -m touncommit
  $ echo unrelated > unrelated
  $ hg ci -Am addunrelated unrelated
  $ hg previous
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  [8] touncommit
  $ hg uncommit aa
  1 new orphan changesets

Test uncommiting agains a different base

  $ hg cat b --rev .
  b
  b
  $ hg cat b --rev .^
  b
  $ hg cat b --rev 0
  b: no such file in rev 07f494440405
  [1]
  $ hg status
  A aa
  $ hg uncommit --rev . b
  abort: cannot uncommit to parent changeset
  [255]
  $ hg uncommit --rev 0 b
  $ hg cat b --rev .
  b: no such file in rev 5b27f6b17da2
  [1]
  $ hg status
  A aa
  A b

Test uncommiting predecessors

  $ hg uncommit --hidden --rev 'predecessors(.)' b --traceback
  $ hg cat b --rev .
  b
  b

Test date, message and user update

  $ hg log -r .
  changeset:   12:912ed871207c
  branch:      bar
  tag:         tip
  parent:      7:4f1c269eab68
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     touncommit
  
  $ hg uncommit -m 'to-uncommit' d --user test2 --date '1337 0'
  $ hg log -r .
  changeset:   13:f1efd9ec508c
  branch:      bar
  tag:         tip
  parent:      7:4f1c269eab68
  user:        test2
  date:        Thu Jan 01 00:22:17 1970 +0000
  summary:     to-uncommit
  

test -U option

  $ hg uncommit -U b
  $ hg log -r .
  changeset:   14:288da4a95941
  branch:      bar
  tag:         tip
  parent:      7:4f1c269eab68
  user:        test
  date:        Thu Jan 01 00:22:17 1970 +0000
  summary:     to-uncommit
  

test the `hg amend --extract` entry point

  $ hg status --change .
  M j
  M o
  A e
  A ff
  A h
  A k
  A l
  R c
  R f
  R g
  R m
  R n
  $ hg status
  M b
  M d
  A aa
  $ hg amend --extract j
  $ hg status --change .
  M o
  A e
  A ff
  A h
  A k
  A l
  R c
  R f
  R g
  R m
  R n
  $ hg status
  M b
  M d
  M j
  A aa

(with all)

  $ hg amend --extract --all
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ hg status --change .
  $ hg status
  M b
  M d
  M j
  M o
  A aa
  A e
  A ff
  A h
  A k
  A l
  R c
  R f
  R g
  R m
  R n

Testing the --revert flag of `hg uncommit`

When working directory before uncommit is clean

  $ hg amend
  $ hg status

  $ hg diff -c . --stat
   aa |  1 +
   b  |  1 +
   c  |  1 -
   d  |  1 +
   e  |  1 +
   f  |  1 -
   ff |  1 +
   g  |  1 -
   h  |  1 +
   j  |  1 +
   k  |  1 +
   l  |  1 +
   m  |  1 -
   n  |  1 -
   o  |  1 +
   15 files changed, 10 insertions(+), 5 deletions(-)
  $ hg uncommit --revert --all
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ hg status

When working directory is dirty before uncommit

  $ echo foo > a
  $ echo foo > b
  $ echo foo > c
  $ hg status
  M a
  M b
  M c
  $ hg amend
  $ echo foo > foo
  $ hg add foo
  $ hg status
  A foo

  $ hg uncommit --revert --all
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ hg status
  ? foo

Bad explicit paths abort, like the bundled commit extension

  $ hg uncommit foo
  abort: cannot uncommit "foo"
  (file was untracked in working directory parent)
  [255]

  $ hg ci -Aqm 'add foo'
  $ hg uncommit bar
  abort: cannot uncommit "bar"
  (file does not exist)
  [255]
  $ hg uncommit d
  abort: cannot uncommit "d"
  (file was not changed in working directory parent)
  [255]

  $ hg status