view tests/test-topic.t @ 2712:f19b314d8475

topics: add t0 and b0 to the stack

t0 or b0 will be the base of the stack and it's the parent of t1 or b1. The cool
thing about this is that if you update to t0 using `hg up t0` or do `hg prev` on
t1, you will be updated to t0 with the current topic preserved.

This patch adds t0 to stack and implement the preserving topic case for t0 while
using `hg update`.

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

  $ hg init pinky
  $ cd pinky
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > # disable the new graph style until we drop 3.7 support
  > graphstyle.missing = |
  > EOF

  $ hg help topics
  hg topics [TOPIC]
  
  View current topic, set current topic, or see all topics.
  
      The --verbose version of this command display various information on the
      state of each topic.
  
  options:
  
      --clear   clear active topic if any
   -r --rev REV revset of existing revisions
   -l --list    show the stack of changeset in the topic
  
  (some details hidden, use --verbose to show complete help)
  $ hg topics

Test topics interaction with evolution:

  $ hg topics --config experimental.evolution=
  $ hg topics --config experimental.evolution= --rev . bob
  abort: must have obsolete enabled to change topics
  [255]

Create some changes:

  $ for x in alpha beta gamma delta ; do
  >   echo file $x >> $x
  >   hg addremove
  >   hg ci -m "Add file $x"
  > done
  adding alpha
  adding beta
  adding gamma
  adding delta

Still no topics
  $ hg topics

Test commit flag and help text

  $ echo stuff >> alpha
  $ HGEDITOR=cat hg ci -t topicflag
  
  
  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  HG: Leave message empty to abort commit.
  HG: --
  HG: user: test
  HG: topic 'topicflag'
  HG: branch 'default'
  HG: changed alpha
  abort: empty commit message
  [255]
  $ hg revert alpha
  $ hg topic
   * topicflag

Make a topic
  $ hg topic narf
  $ hg topics
   * narf
  $ echo topic work >> alpha
  $ hg ci -m 'start on narf'
  $ hg co .^
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg topic fran
  $ hg topics
   * fran
     narf
  $ echo >> fran work >> beta
  $ hg ci -m 'start on fran'
  $ hg co narf
  switching to topic narf
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg topic
     fran
   * narf
  $ hg log -r . -T '{topics}\n'
  narf
  $ echo 'narf!!!' >> alpha
  $ hg ci -m 'narf!'
  $ hg log -G
  @  changeset:   6:7c34953036d6
  |  tag:         tip
  |  topic:       narf
  |  parent:      4:fb147b0b417c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     narf!
  |
  | o  changeset:   5:0469d521db49
  | |  topic:       fran
  | |  parent:      3:a53952faf762
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     start on fran
  | |
  o |  changeset:   4:fb147b0b417c
  |/   topic:       narf
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     start on narf
  |
  o  changeset:   3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file delta
  |
  o  changeset:   2:15d1eb11d2fa
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file gamma
  |
  o  changeset:   1:c692ea2c9224
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file beta
  |
  o  changeset:   0:c2b7d2f7d14b
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     Add file alpha
  

Exchanging of topics:
  $ cd ..
  $ hg init brain
  $ hg -R pinky push -r 4 brain
  pushing to brain
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 4 files

Export

  $ hg -R pinky export
  # HG changeset patch
  # User test
  # Date 0 0
  #      Thu Jan 01 00:00:00 1970 +0000
  # Node ID 7c34953036d6a36eae468c550d0592b89ee8bffc
  # Parent  fb147b0b417c25ca15547cd945acf51cf8dcaf02
  # EXP-Topic narf
  narf!
  
  diff -r fb147b0b417c -r 7c34953036d6 alpha
  --- a/alpha	Thu Jan 01 00:00:00 1970 +0000
  +++ b/alpha	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,2 +1,3 @@
   file alpha
   topic work
  +narf!!!

Import

  $ hg -R pinky export > narf.diff
  $ hg -R pinky --config extensions.strip= strip .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/pinky/.hg/strip-backup/7c34953036d6-1ff3bae2-backup.hg (glob)
  $ hg -R pinky import narf.diff
  applying narf.diff
  $ hg -R pinky log -r .
  changeset:   6:7c34953036d6
  tag:         tip
  topic:       narf
  parent:      4:fb147b0b417c
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     narf!
  
Now that we've pushed to brain, the work done on narf is no longer a
draft, so we won't see that topic name anymore:

  $ hg log -R pinky -G
  @  changeset:   6:7c34953036d6
  |  tag:         tip
  |  topic:       narf
  |  parent:      4:fb147b0b417c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     narf!
  |
  | o  changeset:   5:0469d521db49
  | |  topic:       fran
  | |  parent:      3:a53952faf762
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     start on fran
  | |
  o |  changeset:   4:fb147b0b417c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     start on narf
  |
  o  changeset:   3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file delta
  |
  o  changeset:   2:15d1eb11d2fa
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file gamma
  |
  o  changeset:   1:c692ea2c9224
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file beta
  |
  o  changeset:   0:c2b7d2f7d14b
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     Add file alpha
  
  $ cd brain
  $ hg co tip
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved

Because the change is public, we won't inherit the topic from narf.

  $ hg topic
  $ echo what >> alpha
  $ hg topic query
  $ hg ci -m 'what is narf, pinky?'
  $ hg log -Gl2
  @  changeset:   5:c01515cfc331
  |  tag:         tip
  |  topic:       query
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     what is narf, pinky?
  |
  o  changeset:   4:fb147b0b417c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on narf
  |
  $ hg push -f ../pinky -r query
  pushing to ../pinky
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  $ hg -R ../pinky log -Gl 4
  o  changeset:   7:c01515cfc331
  |  tag:         tip
  |  topic:       query
  |  parent:      4:fb147b0b417c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     what is narf, pinky?
  |
  | @  changeset:   6:7c34953036d6
  |/   topic:       narf
  |    parent:      4:fb147b0b417c
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     narf!
  |
  | o  changeset:   5:0469d521db49
  | |  topic:       fran
  | |  parent:      3:a53952faf762
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     start on fran
  | |
  o |  changeset:   4:fb147b0b417c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     start on narf
  |
  $ hg topics
   * query
  $ cd ../pinky
  $ hg co query
  switching to topic query
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo answer >> alpha
  $ hg ci -m 'Narf is like `zort` or `poit`!'
  $ hg merge narf
  merging alpha
  warning: conflicts while merging alpha! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  [1]
  $ hg revert -r narf alpha
  $ hg resolve -m alpha
  (no more unresolved files)
  $ hg topic narf
  $ hg ci -m 'Finish narf'
  $ hg topics
     fran
   * narf
     query
  $ hg debugnamecomplete # branch:topic here is a buggy side effect
  default
  default:fran
  default:narf
  default:query
  fran
  narf
  query
  tip
  $ hg phase --public narf

POSSIBLE BUG: narf topic stays alive even though we just made all
narf commits public:

  $ hg topics
     fran
   * narf
  $ hg log -Gl 6
  @    changeset:   9:ae074045b7a7
  |\   tag:         tip
  | |  parent:      8:54c943c1c167
  | |  parent:      6:7c34953036d6
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     Finish narf
  | |
  | o  changeset:   8:54c943c1c167
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     Narf is like `zort` or `poit`!
  | |
  | o  changeset:   7:c01515cfc331
  | |  parent:      4:fb147b0b417c
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     what is narf, pinky?
  | |
  o |  changeset:   6:7c34953036d6
  |/   parent:      4:fb147b0b417c
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     narf!
  |
  | o  changeset:   5:0469d521db49
  | |  topic:       fran
  | |  parent:      3:a53952faf762
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     start on fran
  | |
  o |  changeset:   4:fb147b0b417c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     start on narf
  |
  $ cd ../brain
  $ hg topics
   * query
  $ hg pull ../pinky -r narf
  pulling from ../pinky
  abort: unknown revision 'narf'!
  [255]
  $ hg pull ../pinky -r default
  pulling from ../pinky
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hg topics
   * query

We can pull in the draft-phase change and we get the new topic

  $ hg pull ../pinky
  pulling from ../pinky
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  (run 'hg heads' to see heads)
  $ hg topics
     fran
   * query
  $ hg log -Gr 'draft()'
  o  changeset:   9:0469d521db49
  |  tag:         tip
  |  topic:       fran
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

query is not an open topic, so when we clear the current topic it'll
disappear:

  $ hg topics --clear
  $ hg topics
     fran

--clear when we don't have an active topic isn't an error:

  $ hg topics --clear

Topic revset
  $ hg log -r 'topic()' -G
  o  changeset:   9:0469d521db49
  |  tag:         tip
  |  topic:       fran
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
  $ hg log -r 'not topic()' -G
  o    changeset:   8:ae074045b7a7
  |\   parent:      7:54c943c1c167
  | |  parent:      6:7c34953036d6
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     Finish narf
  | |
  | o  changeset:   7:54c943c1c167
  | |  parent:      5:c01515cfc331
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     Narf is like `zort` or `poit`!
  | |
  o |  changeset:   6:7c34953036d6
  | |  parent:      4:fb147b0b417c
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     narf!
  | |
  | @  changeset:   5:c01515cfc331
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     what is narf, pinky?
  |
  o  changeset:   4:fb147b0b417c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on narf
  |
  o  changeset:   3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file delta
  |
  o  changeset:   2:15d1eb11d2fa
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file gamma
  |
  o  changeset:   1:c692ea2c9224
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add file beta
  |
  o  changeset:   0:c2b7d2f7d14b
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     Add file alpha
  
No matches because narf is already closed:
  $ hg log -r 'topic(narf)' -G
This regexp should match the topic `fran`:
  $ hg log -r 'topic("re:.ra.")' -G
  o  changeset:   9:0469d521db49
  |  tag:         tip
  |  topic:       fran
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
Exact match on fran:
  $ hg log -r 'topic(fran)' -G
  o  changeset:   9:0469d521db49
  |  tag:         tip
  |  topic:       fran
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

Match current topic:
  $ hg topic
     fran
  $ hg log -r 'topic(.)'
(no output is expected)
  $ hg co fran
  switching to topic fran
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -r 'topic(.)'
  changeset:   9:0469d521db49
  tag:         tip
  topic:       fran
  parent:      3:a53952faf762
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     start on fran
  

Deactivate the topic.
  $ hg topics
   * fran
  $ hg topics --clear
  $ echo fran? >> beta
  $ hg ci -m 'fran?'
  created new head
  $ hg log -Gr 'draft()'
  @  changeset:   10:4073470c35e1
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     fran?
  |
  o  changeset:   9:0469d521db49
  |  topic:       fran
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
  $ hg topics
     fran
Changing topic fails if we don't give a topic
  $ hg topic --rev 9
  abort: changing topic requires a topic name or --clear
  [255]

Can't change topic of a public change
  $ hg topic --rev 1:: --clear
  abort: can't change topic of a public change
  [255]

Can clear topics
  $ hg topic --rev 9 --clear
  changed topic on 1 changes
  $ hg log -Gr 'draft() and not obsolete()'
  o  changeset:   11:0beca5ab56c3
  |  tag:         tip
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
  | @  changeset:   10:4073470c35e1
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  trouble:     unstable
  | |  summary:     fran?
  | |

Normally you'd do this with evolve, but we'll use rebase to avoid
bonus deps in the testsuite.

  $ hg rebase -d tip -s .
  rebasing 10:4073470c35e1 "fran?"

Can add a topic to an existing change
  $ hg topic
  $ hg sum
  parent: 12:18b70b8de1f0 tip
   fran?
  branch: default
  commit: (clean)
  update: 5 new changesets, 2 branch heads (merge)
  phases: 2 draft
  $ hg topic --rev 11 wat
  changed topic on 1 changes
  $ hg log -r .
  changeset:   12:18b70b8de1f0
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  trouble:     unstable
  summary:     fran?
  
  $ hg sum
  parent: 12:18b70b8de1f0  (unstable)
   fran?
  branch: default
  commit: (clean)
  update: 5 new changesets, 2 branch heads (merge)
  phases: 3 draft
  unstable: 1 changesets
  $ hg topic
     wat
  $ hg log -Gr 'draft() and not obsolete()'
  o  changeset:   13:686a642006db
  |  tag:         tip
  |  topic:       wat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
  | @  changeset:   12:18b70b8de1f0
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  trouble:     unstable
  | |  summary:     fran?
  | |

Normally you'd do this with evolve, but we'll use rebase to avoid
bonus deps in the testsuite.

  $ hg topic
     wat
  $ hg rebase -d tip -s .
  rebasing 12:18b70b8de1f0 "fran?"
  switching to topic wat
  $ hg topic
     wat

  $ hg log -Gr 'draft()'
  @  changeset:   14:45358f7a5892
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     fran?
  |
  o  changeset:   13:686a642006db
  |  topic:       wat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

Amend a topic

  $ hg topic watwat
  $ hg ci --amend
  $ hg log -Gr 'draft()'
  @  changeset:   16:6c40a4c21bbe
  |  tag:         tip
  |  topic:       watwat
  |  parent:      13:686a642006db
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     fran?
  |
  o  changeset:   13:686a642006db
  |  topic:       wat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

Clear and amend:

  $ hg topic --clear
  $ hg ci --amend
  $ hg log -r .
  changeset:   18:0f9cd5070654
  tag:         tip
  parent:      13:686a642006db
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     fran?
  
Reading the same topic with topic --rev should work:
  $ hg topic --rev . watwat
  switching to topic watwat
  changed topic on 1 changes

Testing issue5441
  $ hg co 19
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -Gr 'draft()'
  @  changeset:   19:980a0f608481
  |  tag:         tip
  |  topic:       watwat
  |  parent:      13:686a642006db
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     fran?
  |
  o  changeset:   13:686a642006db
  |  topic:       wat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

  $ hg topics --rev '13::19' changewat
  switching to topic changewat
  changed topic on 2 changes
  $ hg log -Gr 'draft()'
  @  changeset:   21:56c83be6105f
  |  tag:         tip
  |  topic:       changewat
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     fran?
  |
  o  changeset:   20:ceba5be9d56f
  |  topic:       changewat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

Case with branching:

  $ hg up changewat
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg up t1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo gamma >> gamma
  $ hg ci -m gamma
  $ hg log -Gr 'draft()'
  @  changeset:   22:0d3d805542b4
  |  tag:         tip
  |  topic:       changewat
  |  parent:      20:ceba5be9d56f
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     gamma
  |
  | o  changeset:   21:56c83be6105f
  |/   topic:       changewat
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     fran?
  |
  o  changeset:   20:ceba5be9d56f
  |  topic:       changewat
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |
  $ hg topics --rev 't1::' changewut
  switching to topic changewut
  changed topic on 3 changes
  $ hg log -Gr 'draft()'
  @  changeset:   25:729ed5717393
  |  tag:         tip
  |  topic:       changewut
  |  parent:      23:62e49f09f883
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     gamma
  |
  | o  changeset:   24:369c6e2e5474
  |/   topic:       changewut
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     fran?
  |
  o  changeset:   23:62e49f09f883
  |  topic:       changewut
  |  parent:      3:a53952faf762
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     start on fran
  |

Testing for updating to t0
==========================

  $ hg stack
  ### topic: changewut (2 heads)
  ### branch: default, 5 behind
  t3: fran?
  t1^ start on fran (base)
  t2@ gamma (current)
  t1: start on fran
  t0^ Add file delta (base)
  $ hg up t0
  preserving the current topic 'changewut'
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg topic
   * changewut
  $ hg stack
  ### topic: changewut (2 heads)
  ### branch: default, 5 behind
  t3: fran?
  t1^ start on fran (base)
  t2: gamma
  t1: start on fran
  t0^ Add file delta (base)