view tests/test-topic-stack.t @ 2679:5156a67f66a6

topics: update current topic to the topic of newly rebased commit (issue5551)

The rebase code passes branchmerge equals to True while updating to the rebased
commit. We need to make sure topic is preserved even after rebase and hence we
need to update the topic even when branchmerge argument is set to True. But
there is a twist in the tale, merge also uses this part of code and we allow to
update topic when brancmerge is True, in merge cases the topic after merge will
the topic of the destination commit, not the topic of working directory parent.

So we need the function to have information about whether a rebase is going on,
and we do it by wrapping the rebase command and storing some value in the
config. This is a bit hacky but works for now. This patch fixes issue related to
loosing of topic while rebase.

Thanks to Boris Feld for the rigourous tests.

  $ . "$TESTDIR/testlib/topic_setup.sh"

Initial setup


  $ cat << EOF >> $HGRCPATH
  > [ui]
  > logtemplate = {rev} {branch} \{{get(namespaces, "topics")}} {phase} {desc|firstline}\n
  > [experimental]
  > evolution=createmarkers,exchange,allowunstable
  > EOF

  $ hg init main
  $ cd main
  $ hg topic other
  $ echo aaa > aaa
  $ hg add aaa
  $ hg commit -m c_a
  $ echo aaa > bbb
  $ hg add bbb
  $ hg commit -m c_b
  $ hg topic foo
  $ echo aaa > ccc
  $ hg add ccc
  $ hg commit -m c_c
  $ echo aaa > ddd
  $ hg add ddd
  $ hg commit -m c_d
  $ echo aaa > eee
  $ hg add eee
  $ hg commit -m c_e
  $ echo aaa > fff
  $ hg add fff
  $ hg commit -m c_f
  $ hg log -G
  @  5 default {foo} draft c_f
  |
  o  4 default {foo} draft c_e
  |
  o  3 default {foo} draft c_d
  |
  o  2 default {foo} draft c_c
  |
  o  1 default {other} draft c_b
  |
  o  0 default {other} draft c_a
  

Check that topic without any parent does not crash --list
---------------------------------------------------------

  $ hg up other
  switching to topic other
  0 files updated, 0 files merged, 4 files removed, 0 files unresolved
  $ hg topic --list
  ### topic: other
  ### branch: default
  t2@ c_b (current)
  t1: c_a
  $ hg phase --public 'topic("other")'
  $ hg up foo
  switching to topic foo
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved

Simple test
-----------

'hg stack' list all changeset in the topic

  $ hg topic
   * foo
  $ hg stack
  ### topic: foo
  ### branch: default
  t4@ c_f (current)
  t3: c_e
  t2: c_d
  t1: c_c
    ^ c_b
  $ hg stack -Tjson | python -m json.tool
  [
      {
          "isentry": true,
          "topic.stack.desc": "c_f",
          "topic.stack.index": 4,
          "topic.stack.state": [
              "current"
          ],
          "topic.stack.state.symbol": "@"
      },
      {
          "isentry": true,
          "topic.stack.desc": "c_e",
          "topic.stack.index": 3,
          "topic.stack.state": [
              "clean"
          ],
          "topic.stack.state.symbol": ":"
      },
      {
          "isentry": true,
          "topic.stack.desc": "c_d",
          "topic.stack.index": 2,
          "topic.stack.state": [
              "clean"
          ],
          "topic.stack.state.symbol": ":"
      },
      {
          "isentry": true,
          "topic.stack.desc": "c_c",
          "topic.stack.index": 1,
          "topic.stack.state": [
              "clean"
          ],
          "topic.stack.state.symbol": ":"
      },
      {
          "isentry": false,
          "topic.stack.desc": "c_b",
          "topic.stack.state": [
              "base"
          ],
          "topic.stack.state.symbol": "^"
      }
  ]

error case, nothing to list

  $ hg topic --clear
  $ hg stack
  ### branch: default
  b6@ c_f (current)
  b5: c_e
  b4: c_d
  b3: c_c
  b2: c_b
  b1: c_a

Test "t#" reference
-------------------


  $ hg up t2
  abort: cannot resolve "t2": no active topic
  [255]
  $ hg topic foo
  $ hg up t42
  abort: cannot resolve "t42": topic "foo" has only 4 changesets
  [255]
  $ hg up t2
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg summary
  parent: 3:e629654d7050 
   c_d
  branch: default
  commit: (clean)
  update: (current)
  phases: 4 draft
  topic:  foo

Case with some of the topic unstable
------------------------------------

  $ echo bbb > ddd
  $ hg commit --amend
  $ hg log -G
  @  7 default {foo} draft c_d
  |
  | o  5 default {foo} draft c_f
  | |
  | o  4 default {foo} draft c_e
  | |
  | x  3 default {foo} draft c_d
  |/
  o  2 default {foo} draft c_c
  |
  o  1 default {} public c_b
  |
  o  0 default {} public c_a
  
  $ hg topic --list
  ### topic: foo
  ### branch: default
  t4$ c_f (unstable)
  t3$ c_e (unstable)
  t2@ c_d (current)
  t1: c_c
    ^ c_b
  $ hg up t3
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg topic --list
  ### topic: foo
  ### branch: default
  t4$ c_f (unstable)
  t3$ c_e (current unstable)
  t2: c_d
  t1: c_c
    ^ c_b
  $ hg topic --list --color=debug
  [topic.stack.summary.topic|### topic: [topic.active|foo]]
  [topic.stack.summary.branches|### branch: default]
  [topic.stack.index topic.stack.index.unstable|t4][topic.stack.state topic.stack.state.unstable|$] [topic.stack.desc topic.stack.desc.unstable|c_f][topic.stack.state topic.stack.state.unstable| (unstable)]
  [topic.stack.index topic.stack.index.current topic.stack.index.unstable|t3][topic.stack.state topic.stack.state.current topic.stack.state.unstable|$] [topic.stack.desc topic.stack.desc.current topic.stack.desc.unstable|c_e][topic.stack.state topic.stack.state.current topic.stack.state.unstable| (current unstable)]
  [topic.stack.index topic.stack.index.clean|t2][topic.stack.state topic.stack.state.clean|:] [topic.stack.desc topic.stack.desc.clean|c_d]
  [topic.stack.index topic.stack.index.clean|t1][topic.stack.state topic.stack.state.clean|:] [topic.stack.desc topic.stack.desc.clean|c_c]
    [topic.stack.state topic.stack.state.base|^] [topic.stack.desc topic.stack.desc.base|c_b]
  $ hg up t2
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

Also test the revset:

  $ hg log -r 'stack()'
  2 default {foo} draft c_c
  7 default {foo} draft c_d
  4 default {foo} draft c_e
  5 default {foo} draft c_f

Case with multiple heads on the topic
-------------------------------------

Make things linear again

  $ hg rebase -s 'desc(c_e)' -d 'desc(c_d) - obsolete()'
  rebasing 4:0f9ac936c87d "c_e"
  rebasing 5:6559e6d93aea "c_f"
  $ hg log -G
  o  9 default {foo} draft c_f
  |
  o  8 default {foo} draft c_e
  |
  @  7 default {foo} draft c_d
  |
  o  2 default {foo} draft c_c
  |
  o  1 default {} public c_b
  |
  o  0 default {} public c_a
  


Create the second branch

  $ hg up 'desc(c_d)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo aaa > ggg
  $ hg add ggg
  $ hg commit -m c_g
  $ echo aaa > hhh
  $ hg add hhh
  $ hg commit -m c_h
  $ hg log -G
  @  11 default {foo} draft c_h
  |
  o  10 default {foo} draft c_g
  |
  | o  9 default {foo} draft c_f
  | |
  | o  8 default {foo} draft c_e
  |/
  o  7 default {foo} draft c_d
  |
  o  2 default {foo} draft c_c
  |
  o  1 default {} public c_b
  |
  o  0 default {} public c_a
  

Test output

  $ hg top -l
  ### topic: foo (2 heads)
  ### branch: default
  t6: c_f
  t5: c_e
  t2^ c_d (base)
  t4@ c_h (current)
  t3: c_g
  t2: c_d
  t1: c_c
    ^ c_b

Case with multiple heads on the topic with unstability involved
---------------------------------------------------------------

We amend the message to make sure the display base pick the right changeset

  $ hg up 'desc(c_d)'
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo ccc > ddd
  $ hg commit --amend -m 'c_D' 
  $ hg rebase -d . -s 'desc(c_g)'
  rebasing 10:81264ae8a36a "c_g"
  rebasing 11:fde5f5941642 "c_h"
  $ hg log -G
  o  15 default {foo} draft c_h
  |
  o  14 default {foo} draft c_g
  |
  @  13 default {foo} draft c_D
  |
  | o  9 default {foo} draft c_f
  | |
  | o  8 default {foo} draft c_e
  | |
  | x  7 default {foo} draft c_d
  |/
  o  2 default {foo} draft c_c
  |
  o  1 default {} public c_b
  |
  o  0 default {} public c_a
  

  $ hg topic --list
  ### topic: foo (2 heads)
  ### branch: default
  t6$ c_f (unstable)
  t5$ c_e (unstable)
  t2^ c_D (base)
  t4: c_h
  t3: c_g
  t2@ c_D (current)
  t1: c_c
    ^ c_b

Trying to list non existing topic
  $ hg stack thisdoesnotexist
  abort: cannot resolve "thisdoesnotexist": no such topic found
  [255]
  $ hg topic --list thisdoesnotexist
  abort: cannot resolve "thisdoesnotexist": no such topic found
  [255]