$ . "$TESTDIR/testlib"

  $ hg init pinky

  $ cd pinky

  $ cat <<EOF >> .hg/hgrc

  > [phases]

  > publish=false

  > EOF

  $ hg help topics

  hg topics

  View current topic, set current topic, or see all topics.

  options:

    --clear clear active topic if any

  (some details hidden, use --verbose to show complete help)

  $ hg topics

  $ 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

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'

  created new head

  $ hg co narf

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg topic

     fran

   * 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

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

  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 during merge.

  merging alpha incomplete! (edit conflicts, 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 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 merge' to merge)

  $ 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

Move to fran, note that the topic activates, then deactivate the topic.