view tests/test-glog-topological.t @ 29348:2188f170f5b6

revset: add new topographical sort

Sort revisions in reverse revision order but grouped by topographical branches.
Visualised as a graph, instead of:

  o  4
  |
  | o  3
  | |
  | o  2
  | |
  o |  1
  |/
  o  0

revisions on a 'main' branch are emitted before 'side' branches:

  o  4
  |
  o  1
  |
  | o  3
  | |
  | o  2
  |/
  o  0

where what constitutes a 'main' branch is configurable, so the sort could also
result in:

  o  3
  |
  o  2
  |
  | o  4
  | |
  | o  1
  |/
  o  0

This sort was already available as an experimental option in the graphmod
module, from which it is now removed.

This sort is best used with hg log -G:

  $ hg log -G "sort(all(), topo)"

This test file aims at test topological iteration and the various configuration it can has.

  $ cat >> $HGRCPATH << EOF
  > [ui]
  > logtemplate={rev}\n
  > EOF

On this simple example, all topological branch are displayed in turn until we
can finally display 0. this implies skipping from 8 to 3 and coming back to 7
later.

  $ hg init test01
  $ cd test01
  $ hg unbundle $TESTDIR/bundles/remote.hg
  adding changesets
  adding manifests
  adding file changes
  added 9 changesets with 7 changes to 4 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg log -G
  o  8
  |
  | o  7
  | |
  | o  6
  | |
  | o  5
  | |
  | o  4
  | |
  o |  3
  | |
  o |  2
  | |
  o |  1
  |/
  o  0
  

(display all nodes)

  $ hg log -G -r 'sort(all(), topo)'
  o  8
  |
  o  3
  |
  o  2
  |
  o  1
  |
  | o  7
  | |
  | o  6
  | |
  | o  5
  | |
  | o  4
  |/
  o  0
  

(revset skipping nodes)

  $ hg log -G --rev 'sort(not (2+6), topo)'
  o  8
  |
  o  3
  :
  o  1
  |
  | o  7
  | :
  | o  5
  | |
  | o  4
  |/
  o  0
  

(begin) from the other branch

  $ hg log -G -r 'sort(all(), topo, topo.firstbranch=5)'
  o  7
  |
  o  6
  |
  o  5
  |
  o  4
  |
  | o  8
  | |
  | o  3
  | |
  | o  2
  | |
  | o  1
  |/
  o  0