view tests/test-topic-rebase.t @ 5926:aca07ac01167

divergence-resolution: use last evolution date to choose p1 when merging

Before this patch, we choose the minimum revision as p1 while merging the
two divergent csets which had a drawback that if independent user resolve
the same divergence, their final resolved cset would have different hashes
(because of 'divergence_source_local' and 'divergence_source_other' extras).

Now, we decide the p1 on the basis of which of the two divergent cset
was rewritten more recently. This new logic removes the "different hash"
problem.

To save us from big output changes in the tests due to this change, I also
added the second factor i.e revision_number while sorting the csets wrt dates
(as date is same for all the csets in tests) to fallback to the old way of
picking the revision i.e choosing the minimum rev number.

And to demonstrate that now divergence resolution is independent of which
side user run the `hg evolve --content-div` resolved cset id won't change,
I have added a separate test file.
Flag --config devel.default-date='...' is being used here to record a
custom date in the obsmarkers.

test of the rebase command
--------------------------

  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > interactive = true
  > [extensions]
  > rebase=
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
  $ echo "topic=$(echo $(dirname $TESTDIR))/hgext3rd/topic/" >> $HGRCPATH
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1" $2 $3
  > }
  $ logtopic() {
  >    hg log -G -T "{rev}:{node}\ntopics: {topic}" 
  > }

Check that rebase keep the topic in the simple case (1 changeset, no merge conflict)
------------------------------------------------------------------------------------

  $ hg init testrebase
  $ cd testrebase
  $ mkcommit ROOT

Work on myfeature
  $ hg topic myfeature
  marked working directory as topic: myfeature
  $ mkcommit feature1
  active topic 'myfeature' grew its first changeset
  (see 'hg help topics' for more information)
  $ hg stack
  ### topic: myfeature
  ### target: default (branch)
  s1@ add feature1 (current)
  s0^ add ROOT (base)
  $ logtopic
  @  1:39e7a938055e87615edf675c24a10997ff05bb06
  |  topics: myfeature
  o  0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
     topics:

Create another commit on default
  $ hg update --rev default
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit default
  $ logtopic
  @  2:be7622a7a0f43ba713e152f56441275f8e8711ef
  |  topics:
  | o  1:39e7a938055e87615edf675c24a10997ff05bb06
  |/   topics: myfeature
  o  0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
     topics:

Rebase the commit
  $ hg update --rev 1
  switching to topic myfeature
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg rebase
  rebasing 1:39e7a938055e myfeature "add feature1"
  switching to topic myfeature
  $ hg stack
  ### topic: myfeature
  ### target: default (branch)
  s1@ add feature1 (current)
  s0^ add default (base)
  $ logtopic
  @  3:fc6593661cf3256ba165cbccd6019ead17cc3726
  |  topics: myfeature
  o  2:be7622a7a0f43ba713e152f56441275f8e8711ef
  |  topics:
  o  0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
     topics:
  $ hg up 3
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg stack
  ### topic: myfeature
  ### target: default (branch)
  s1@ add feature1 (current)
  s0^ add default (base)

Check that rebase keep the topic in case of merge conflict
----------------------------------------------------------

Create a common base
  $ hg topic --clear
  $ echo "A" > file
  $ hg commit -A -m "default2" file
  created new head
  (consider using topic for lightweight branches. See 'hg help topic')

Update the common file in a topic
  $ hg topic myotherfeature
  marked working directory as topic: myotherfeature
  $ echo "B" >> file
  $ hg commit -m "myotherfeature1"
  active topic 'myotherfeature' grew its first changeset
  (see 'hg help topics' for more information)

Update the common file in default
  $ hg update --rev default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo "A2" > file
  $ hg commit -m "default3"

Rebase the topic
  $ hg update --rev 5
  switching to topic myotherfeature
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg rebase
  rebasing 5:81f854012ec5 myotherfeature "myotherfeature1"
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  switching to topic myotherfeature
  unresolved conflicts (see 'hg resolve', then 'hg rebase --continue')
  [240]

Resolve the conflict
  $ echo A2 > file
  $ echo B >> file
  $ hg resolve -m
  (no more unresolved files)
  continue: hg rebase --continue
  $ hg rebase --continue
  rebasing 5:81f854012ec5 myotherfeature "myotherfeature1"

Check the the commit has the right topic

  $ logtopic
  @  7:6ccb9ec4913b64f3ad719ff1ba66495a70bf35a4
  |  topics: myotherfeature
  o  6:0b124ef641a7a6f4715d962650d3b367e8c800be
  |  topics:
  o  4:0cd2e1a45ac4e3f9603a05ccfa6d1c70cd759bc5
  |  topics:
  o  3:fc6593661cf3256ba165cbccd6019ead17cc3726
  |  topics: myfeature
  o  2:be7622a7a0f43ba713e152f56441275f8e8711ef
  |  topics:
  o  0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
     topics:
  $ hg stack
  ### topic: myotherfeature
  ### target: default (branch)
  s1@ myotherfeature1 (current)
  s0^ default3 (base)
  $ hg update --rev 7
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg stack
  ### topic: myotherfeature
  ### target: default (branch)
  s1@ myotherfeature1 (current)
  s0^ default3 (base)

inmemory rebase currently drops the topic.

BUG: inmemory rebase currently drops the topic.  This is the correct output
because of there's a config override.

  $ echo x > a.txt
  $ hg ci -Aqm x
  $ hg rebase -r . -d 3 --config rebase.experimental.inmemory=1
  rebasing 8:1323571d782d tip myotherfeature "x"
  switching to topic myfeature
  switching to topic myotherfeature
  $ logtopic
  @  9:42f2e003a46e77e1b33da4434c2689722b976b73
  |  topics: myotherfeature
  | o  7:6ccb9ec4913b64f3ad719ff1ba66495a70bf35a4
  | |  topics: myotherfeature
  | o  6:0b124ef641a7a6f4715d962650d3b367e8c800be
  | |  topics:
  | o  4:0cd2e1a45ac4e3f9603a05ccfa6d1c70cd759bc5
  |/   topics:
  o  3:fc6593661cf3256ba165cbccd6019ead17cc3726
  |  topics: myfeature
  o  2:be7622a7a0f43ba713e152f56441275f8e8711ef
  |  topics:
  o  0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
     topics: