view tests/test-evolve-obshistory.t @ 4728:ef8907df73fc stable

touch: fix the inconsistent behavior of divergence catching logic (issue6107)

When touching a node, the way we check if it can lead to divergence
is we look at the successors sets of the rev being touched. And if
there is successor revs exists (excluding the case when that successor
set is (A,) for rev A) that means there will be divergence and we warn
the user.
This works fine but there is still a case (which is not covered by looking
at successor sets) which can lead to divergence.

That case is: when there is already a revision exists which is divergent
to the revision being touched. And performing the touch would revive
that "dead" divergence. (Dead because one of the revision is obsolete which
is the one we are touching)

And to see if there is any rev which is divergent to a particular rev
we already have a function which we can use here
i.e. `evolvecmd.divergentsets(repo, ctx_being_touched)`

Changes in test file demonstrate the fixed behaviour.

This test file test the various messages when accessing obsolete
revisions.

Global setup
============

  $ . $TESTDIR/testlib/obshistory_setup.sh

Test simple common cases
========================

Test setup
----------
  $ hg init $TESTTMP/simple
  $ cd $TESTTMP/simple

Actual test
-----------
  $ hg obslog -ap null
  @  000000000000 (-1)
  
  $ hg obslog 'wdir()'
  abort: working directory revision cannot be specified
  [255]

Test output with pushed and pulled obs markers
==============================================

Test setup
----------

  $ hg init $TESTTMP/local-remote-markers-1
  $ cd $TESTTMP/local-remote-markers-1
  $ mkcommit ROOT
  $ mkcommit A0
  $ hg log --hidden -G
  @  changeset:   1:471f378eab4c
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ hg clone $TESTTMP/local-remote-markers-1 $TESTTMP/local-remote-markers-2
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd $TESTTMP/local-remote-markers-2
  $ hg log --hidden -G
  @  changeset:   1:471f378eab4c
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ cd $TESTTMP/local-remote-markers-1
  $ hg amend -m "A1"
  $ hg amend -m "A2"
  $ hg log --hidden -G
  @  changeset:   3:7a230b46bf61
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A2
  |
  | x  changeset:   2:fdf9bde5129a
  |/   parent:      0:ea207398892e
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    reworded using amend as 3:7a230b46bf61
  |    summary:     A1
  |
  | x  changeset:   1:471f378eab4c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    reworded using amend as 2:fdf9bde5129a
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
 Actual test
 -----------

  $ hg obslog 7a230b46bf61 --patch
  @  7a230b46bf61 (3) A2
  |
  x  fdf9bde5129a (2) A1
  |    rewritten(description) as 7a230b46bf61 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r fdf9bde5129a -r 7a230b46bf61 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A1
  |      +A2
  |
  |
  x  471f378eab4c (1) A0
       rewritten(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r fdf9bde5129a changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A1
  
  
  $ cd $TESTTMP/local-remote-markers-2
  $ hg pull
  pulling from $TESTTMP/local-remote-markers-1
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 1 files (+1 heads)
  2 new obsolescence markers
  obsoleted 1 changesets
  new changesets 7a230b46bf61 (1 drafts)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: 7a230b46bf61)
Check that debugobshistory works with markers pointing to missing local
changectx
  $ hg obslog 7a230b46bf61 --patch
  o  7a230b46bf61 (2) A2
  |
  x  fdf9bde5129a
  |    rewritten(description) as 7a230b46bf61 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      (No patch available, context is not local)
  |
  @  471f378eab4c (1) A0
       rewritten(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         (No patch available, successor is unknown locally)
  

  $ hg obslog 7a230b46bf61 --patch -f
  o  7a230b46bf61 (2) A2
  |
  @  471f378eab4c (1) A0
       reworded(description) as 7a230b46bf61 using amend by test (at Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r 7a230b46bf61 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A2
  
  
  $ hg obslog 7a230b46bf61 --color=debug --patch
  o  [evolve.node|7a230b46bf61] [evolve.rev|(2)] [evolve.short_description|A2]
  |
  x  [evolve.node evolve.missing_change_ctx|fdf9bde5129a]
  |    [evolve.verb|rewritten](description) as [evolve.node|7a230b46bf61] using [evolve.operation|amend] by [evolve.user|test] [evolve.date|(Thu Jan 01 00:00:00 1970 +0000)]
  |      (No patch available, context is not local)
  |
  @  [evolve.node|471f378eab4c] [evolve.rev|(1)] [evolve.short_description|A0]
       [evolve.verb|rewritten](description) as [evolve.node|fdf9bde5129a] using [evolve.operation|amend] by [evolve.user|test] [evolve.date|(Thu Jan 01 00:00:00 1970 +0000)]
         (No patch available, successor is unknown locally)