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..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

  $ hg topic --clear

  $ hg topic

     foo

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 {}

  |

  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}

  |

  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  ()