view tests/test-topic-change.t @ 5619:5673730db8d5 stable

evolve: clean merge state when content divergence resolution has no changes

This patch backs out b723805d7fe1, which only hid the problem.

Usually mergestate is cleared (or should be cleared) when creating a new
changeset, but sometimes there are situations when there's nothing to commit.

When solving content divergence resulted in no changes and no new changesets
were created, mergestate was left untouched. That's a problem because sometimes
mergestate contains files with conflicts that were already resolved by user,
and such mergestate only applies to the current wdir parent. Since evolve has
already dealt with the current wdir parent successfully when it reached this
code, this is a good place to clean the mergestate.

Tests for changing and clearing topics
======================================

  $ . "$TESTDIR/testlib/topic_setup.sh"
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > # disable the new graph style until we drop 3.7 support
  > graphstyle.missing = |
  > evolution=createmarkers, allowunstable
  > [phases]
  > publish=false
  > [alias]
  > glog = log -G -T "{rev}:{node|short} \{{topic}}\n{desc}  ({bookmarks})\n\n"
  > EOF

About the glog output: {} contains the topic name and () will contain the bookmark

Setting up a repo
----------------

  $ hg init topics
  $ cd topics
  $ for ch in a b c d e f g h; do touch $ch; echo "foo" >> $ch; hg ci -Aqm "Added "$ch; done

  $ hg glog
  @  7:ec2426147f0e {}
  |  Added h  ()
  |
  o  6:87d6d6676308 {}
  |  Added g  ()
  |
  o  5:825660c69f0c {}
  |  Added f  ()
  |
  o  4:aa98ab95a928 {}
  |  Added e  ()
  |
  o  3:62615734edd5 {}
  |  Added d  ()
  |
  o  2:28ad74487de9 {}
  |  Added c  ()
  |
  o  1:29becc82797a {}
  |  Added b  ()
  |
  o  0:18d04c59bb5d {}
     Added a  ()
  

Clearing topic from revision without topic

  $ hg topic -r . --clear
  cleared topic on 0 changesets

Clearing current topic when no active topic is not error

  $ hg topic
  $ hg topic --clear

Setting topics to all the revisions

  $ hg topic -r 0:: foo
  switching to topic foo
  changed topic on 8 changesets to "foo"
  $ hg glog
  @  15:05095f607171 {foo}
  |  Added h  ()
  |
  o  14:97505b53ab0d {foo}
  |  Added g  ()
  |
  o  13:75a8360fe626 {foo}
  |  Added f  ()
  |
  o  12:abcedffeae90 {foo}
  |  Added e  ()
  |
  o  11:1315a3808ed0 {foo}
  |  Added d  ()
  |
  o  10:1fa891977a22 {foo}
  |  Added c  ()
  |
  o  9:a53ba98dd6b8 {foo}
  |  Added b  ()
  |
  o  8:86a186070af2 {foo}
     Added a  ()
  

Clearing the active topic using --clear

  $ hg topic
   * foo (8 changesets)
  $ hg topic --clear
  $ hg topic
     foo (8 changesets)
Changing topics on some revisions (also testing issue 5441)

  $ hg topic -r abcedffeae90:: bar
  switching to topic bar
  changed topic on 4 changesets to "bar"
  $ hg glog
  @  19:d7d36e193ea7 {bar}
  |  Added h  ()
  |
  o  18:e7b418d79a05 {bar}
  |  Added g  ()
  |
  o  17:82e0b14f4d9e {bar}
  |  Added f  ()
  |
  o  16:edc4a6b9ea60 {bar}
  |  Added e  ()
  |
  o  11:1315a3808ed0 {foo}
  |  Added d  ()
  |
  o  10:1fa891977a22 {foo}
  |  Added c  ()
  |
  o  9:a53ba98dd6b8 {foo}
  |  Added b  ()
  |
  o  8:86a186070af2 {foo}
     Added a  ()
  

Changing topics without passing topic name and clear

  $ hg topic -r .
  abort: changing topic requires a topic name or --clear
  [255]

Changing topic using --current flag

  $ hg topic foobar
  $ hg topic -r . --current
  active topic 'foobar' grew its first changeset
  (see 'hg help topics' for more information)
  changed topic on 1 changesets to "foobar"
  $ hg glog -r .
  @  20:c2d6b7df5dcf {foobar}
  |  Added h  ()
  |

Changing topic in between the stack

  $ hg topic -r 9::10 --current
  5 new orphan changesets
  changed topic on 2 changesets to "foobar"
  $ hg glog
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  | @  20:c2d6b7df5dcf {foobar}
  | |  Added h  ()
  | |
  | *  18:e7b418d79a05 {bar}
  | |  Added g  ()
  | |
  | *  17:82e0b14f4d9e {bar}
  | |  Added f  ()
  | |
  | *  16:edc4a6b9ea60 {bar}
  | |  Added e  ()
  | |
  | *  11:1315a3808ed0 {foo}
  | |  Added d  ()
  | |
  | x  10:1fa891977a22 {foo}
  | |  Added c  ()
  | |
  | x  9:a53ba98dd6b8 {foo}
  |/   Added b  ()
  |
  o  8:86a186070af2 {foo}
     Added a  ()
  
  $ hg rebase -s 11 -d 22
  rebasing 11:1315a3808ed0 "Added d" (foo)
  switching to topic foo
  rebasing 16:edc4a6b9ea60 "Added e" (bar)
  switching to topic bar
  rebasing 17:82e0b14f4d9e "Added f" (bar)
  rebasing 18:e7b418d79a05 "Added g" (bar)
  rebasing 20:c2d6b7df5dcf "Added h" (foobar)
  switching to topic foobar

  $ hg glog
  @  27:a1a9465da59b {foobar}
  |  Added h  ()
  |
  o  26:7c76c271395f {bar}
  |  Added g  ()
  |
  o  25:7f26084dfaf1 {bar}
  |  Added f  ()
  |
  o  24:b1f05e9ba0b5 {bar}
  |  Added e  ()
  |
  o  23:f9869da2286e {foo}
  |  Added d  ()
  |
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  o  8:86a186070af2 {foo}
     Added a  ()
  
Amending a topic
----------------

When the changeset has a topic and we have different active topic

  $ hg topic wat
  $ hg ci --amend
  active topic 'wat' grew its first changeset
  (see 'hg help topics' for more information)
  $ hg glog -r .
  @  28:61470c956807 {wat}
  |  Added h  ()
  |

Clear the current topic and amending

  $ hg topic --clear
  $ hg ci --amend
  $ hg glog -r .
  @  29:b584fa49f42e {}
  |  Added h  ()
  |

When the changeset does not has a topic but we have an active topic

  $ hg topic watwat
  marked working directory as topic: watwat
  $ hg ci --amend
  active topic 'watwat' grew its first changeset
  (see 'hg help topics' for more information)
  $ hg glog -r .
  @  30:a24c31c35013 {watwat}
  |  Added h  ()
  |

Testing changing topics on public changeset
-------------------------------------------

  $ hg phase -r 8 -p

Clearing the topic

  $ hg topic -r 8 --clear
  abort: can't change topic of a public change
  [255]

Changing the topic

  $ hg topic -r 8 foobarboo
  abort: can't change topic of a public change
  [255]

Testing the bookmark movement
-----------------------------

  $ hg bookmark book
  $ hg glog
  @  30:a24c31c35013 {watwat}
  |  Added h  (book)
  |
  o  26:7c76c271395f {bar}
  |  Added g  ()
  |
  o  25:7f26084dfaf1 {bar}
  |  Added f  ()
  |
  o  24:b1f05e9ba0b5 {bar}
  |  Added e  ()
  |
  o  23:f9869da2286e {foo}
  |  Added d  ()
  |
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  o  8:86a186070af2 {}
     Added a  ()
  
On clearing the topic

  $ hg topic -r . --clear
  clearing empty topic "watwat"
  active topic 'watwat' is now empty
  cleared topic on 1 changesets

  $ hg glog
  @  31:c48d6d71b2d9 {}
  |  Added h  (book)
  |
  o  26:7c76c271395f {bar}
  |  Added g  ()
  |
  o  25:7f26084dfaf1 {bar}
  |  Added f  ()
  |
  o  24:b1f05e9ba0b5 {bar}
  |  Added e  ()
  |
  o  23:f9869da2286e {foo}
  |  Added d  ()
  |
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  o  8:86a186070af2 {}
     Added a  ()
  

On changing the topic

  $ hg bookmark bookboo
  $ hg topic -r . movebook
  switching to topic movebook
  changed topic on 1 changesets to "movebook"
  $ hg glog
  @  32:1b83d11095b9 {movebook}
  |  Added h  (book bookboo)
  |
  o  26:7c76c271395f {bar}
  |  Added g  ()
  |
  o  25:7f26084dfaf1 {bar}
  |  Added f  ()
  |
  o  24:b1f05e9ba0b5 {bar}
  |  Added e  ()
  |
  o  23:f9869da2286e {foo}
  |  Added d  ()
  |
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  o  8:86a186070af2 {}
     Added a  ()
  
Changing topic on secret changesets
-----------------------------------

  $ hg up 26
  switching to topic bar
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (leaving bookmark bookboo)

  $ hg phase -r . -s -f
  $ hg phase -r .
  26: secret

  $ hg topic -r . watwat
  switching to topic watwat
  1 new orphan changesets
  changed topic on 1 changesets to "watwat"

  $ hg glog
  @  33:894983f69e69 {watwat}
  |  Added g  ()
  |
  | *  32:1b83d11095b9 {movebook}
  | |  Added h  (book bookboo)
  | |
  | x  26:7c76c271395f {bar}
  |/   Added g  ()
  |
  o  25:7f26084dfaf1 {bar}
  |  Added f  ()
  |
  o  24:b1f05e9ba0b5 {bar}
  |  Added e  ()
  |
  o  23:f9869da2286e {foo}
  |  Added d  ()
  |
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  o  8:86a186070af2 {}
     Added a  ()
  
  $ hg phase -r .
  33: secret