view tests/test-topic-change.t @ 3315:c153441cdc0e

stablesort: record, cache and reuse jump

Iterating below a merge means two things:

1) iterate over the part exclusive to the higher parents,
2) iterate from the lower parents.

While iterating on the exclusive part, there will be case were we just go the
next natural parent, and case were we'll have to "jump" to another revision. If
we record all point this "jump" happens and their target, we can easily
reproduce the iteration in the future. With that information we can iterate over
the exclusive part of the merge without having to compute it entirely.

In addition we store the reason of the jump. This will help the stable range
processing later.

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} \{{topics}}\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
  changed topic on 0 changes

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 changes
  $ 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 12:: bar
  switching to topic bar
  changed topic on 4 changes
  $ 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
  changed topic on 1 changes
  $ hg glog -r .
  @  20:c2d6b7df5dcf {foobar}
  |  Added h  ()
  |

Changing topic in between the stack

  $ hg topic -r 9::10 --current
  changed topic on 2 changes
  $ hg glog
  o  22:1b88140feefe {foobar}
  |  Added c  ()
  |
  o  21:c39cabfcbbf7 {foobar}
  |  Added b  ()
  |
  | @  20:c2d6b7df5dcf {foobar}
  | |  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  ()
  | |
  | 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
  $ 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
  $ 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
  changed topic on 1 changes

  $ 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 changes
  $ 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
  changed topic on 1 changes

  $ hg glog
  @  33:894983f69e69 {watwat}
  |  Added g  ()
  |
  | o  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