diff tests/test-evolve-public-content-divergent.t @ 4473:14437b18b024

evolve: fix divergence resolution when not merging a descendant

In divergence resolution, when we merge other cset with divergent one
we pass a `mergeancestor` arg to merge.update() and before this patch
we were passing `mergeancestor` as True in every case.
But it should be True only when we are merging a descendant onto an
ancestor.

When mergeancestor is True it does two things:
    1) allows the merge if the destination is the same as the parent
      of the ctx (so we can use graft to copy commits)
    2) informs update that the incoming changes are newer than the
      destination so it doesn't prompt about "remote changed foo
      which local deleted".

So this patch change it to pass `mergeancestor` as True only when
it is required.
And changes in test file shows that it wasn't prompting either in
those cases when it should (acc. to 2nd point)

Test written by Pierre-Yves David, based the one updated in 5dbaabfe2c59.

--- a/tests/test-evolve-public-content-divergent.t	Fri Mar 29 15:15:07 2019 +0100
+++ b/tests/test-evolve-public-content-divergent.t	Fri Apr 05 17:45:59 2019 +0200
@@ -502,14 +502,14 @@
   o  0:9092f1db7931 added a
       draft
   
-  $ hg prune 3 -s 5
+  $ hg prune 'min(desc("re:added d$"))' -s 'max(desc("re:added d$"))'
   1 changesets pruned
-  $ hg prune 3 -s 4 --hidden
+  $ hg prune 'min(desc("re:added d$"))' -s 'desc("added d c e")' --hidden
   1 changesets pruned
   2 new content-divergent changesets
 
 Change phase to public for one head:
-  $ hg phase --public -r 5
+  $ hg phase --public -r 'max(desc("re:added d$"))'
 
   $ hg glog
   @  5:93cd84bbdaca added d
@@ -811,6 +811,287 @@
   $ hg evolve -l
   $ cd ..
 
+Different parent, simple conflict on relocate, deleted file on actual merge
+---------------------------------------------------------------------------
+
+Changeset "added c e" is also removing 'd'. This should conflict with the update
+to 'd' in the successors of 'adding d' when solving the content divergence.
+
+  $ hg init pubdiv-parent-deleted-file
+  $ cd pubdiv-parent-deleted-file
+  $ for ch in a b c d; do
+  >   echo $ch > $ch;
+  >   hg ci -Aqm "added "$ch;
+  > done;
+
+  $ hg up 'desc("added b")'
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  $ echo cfoo > c
+  $ echo e > e
+  $ hg add c e
+  $ hg ci -m "added c e"
+  created new head
+
+  $ hg up 'desc("re:added c$")'
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ echo dd > d
+  $ hg add d
+  $ hg ci -m "added d"
+  created new head
+
+  $ hg glog --patch --rev 'sort(all(), "topo")'
+  @  5:93cd84bbdaca added d
+  |   draft
+  |
+  |  diff -r 155349b645be -r 93cd84bbdaca d
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +dd
+  |
+  | o  3:9150fe93bec6 added d
+  |/    draft
+  |
+  |    diff -r 155349b645be -r 9150fe93bec6 d
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +d
+  |
+  o  2:155349b645be added c
+  |   draft
+  |
+  |  diff -r 5f6d8a4bf34a -r 155349b645be c
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +c
+  |
+  | o  4:e568fd1029bb added c e
+  |/    draft
+  |
+  |    diff -r 5f6d8a4bf34a -r e568fd1029bb c
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +cfoo
+  |    diff -r 5f6d8a4bf34a -r e568fd1029bb e
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/e	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +e
+  |
+  o  1:5f6d8a4bf34a added b
+  |   draft
+  |
+  |  diff -r 9092f1db7931 -r 5f6d8a4bf34a b
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +b
+  |
+  o  0:9092f1db7931 added a
+      draft
+  
+     diff -r 000000000000 -r 9092f1db7931 a
+     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+     +++ b/a	Thu Jan 01 00:00:00 1970 +0000
+     @@ -0,0 +1,1 @@
+     +a
+  
+  $ hg prune 'min(desc("added d"))' -s 'max(desc("added d"))'
+  1 changesets pruned
+  $ hg prune 'min(desc("added d"))' -s 'desc("added c e")' --hidden
+  1 changesets pruned
+  2 new content-divergent changesets
+
+Change phase to public for one head:
+  $ hg phase --public -r 'max(desc("added d"))'
+
+  $ hg glog
+  @  5:93cd84bbdaca added d
+  |   public
+  |
+  | *  4:e568fd1029bb added c e
+  | |   draft content-divergent
+  | |
+  o |  2:155349b645be added c
+  |/    public
+  |
+  o  1:5f6d8a4bf34a added b
+  |   public
+  |
+  o  0:9092f1db7931 added a
+      public
+  
+
+  $ hg glog --patch --rev 'sort(all(), "topo")' --hidden
+  @  5:93cd84bbdaca added d
+  |   public
+  |
+  |  diff -r 155349b645be -r 93cd84bbdaca d
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +dd
+  |
+  | x  3:9150fe93bec6 added d
+  |/    draft
+  |
+  |    diff -r 155349b645be -r 9150fe93bec6 d
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +d
+  |
+  o  2:155349b645be added c
+  |   public
+  |
+  |  diff -r 5f6d8a4bf34a -r 155349b645be c
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +c
+  |
+  | *  4:e568fd1029bb added c e
+  |/    draft content-divergent
+  |
+  |    diff -r 5f6d8a4bf34a -r e568fd1029bb c
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +cfoo
+  |    diff -r 5f6d8a4bf34a -r e568fd1029bb e
+  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |    +++ b/e	Thu Jan 01 00:00:00 1970 +0000
+  |    @@ -0,0 +1,1 @@
+  |    +e
+  |
+  o  1:5f6d8a4bf34a added b
+  |   public
+  |
+  |  diff -r 9092f1db7931 -r 5f6d8a4bf34a b
+  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
+  |  @@ -0,0 +1,1 @@
+  |  +b
+  |
+  o  0:9092f1db7931 added a
+      public
+  
+     diff -r 000000000000 -r 9092f1db7931 a
+     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+     +++ b/a	Thu Jan 01 00:00:00 1970 +0000
+     @@ -0,0 +1,1 @@
+     +a
+  
+
+  $ hg obslog --all --rev tip --patch
+  @  93cd84bbdaca (5) added d
+  |
+  | *  e568fd1029bb (4) added c e
+  |/
+  x  9150fe93bec6 (3) added d
+       rewritten(content) as 93cd84bbdaca using prune by test (Thu Jan 01 00:00:00 1970 +0000)
+         diff -r 9150fe93bec6 -r 93cd84bbdaca d
+         --- a/d	Thu Jan 01 00:00:00 1970 +0000
+         +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+         @@ -1,1 +1,1 @@
+         -d
+         +dd
+  
+       rewritten(description, parent, content) as e568fd1029bb using prune by test (Thu Jan 01 00:00:00 1970 +0000)
+         (No patch available, changesets rebased)
+  
+
+  $ hg evolve --content-divergent --any
+  merge:[5] added d
+  with: [4] added c e
+  base: [3] added d
+  rebasing "other" content-divergent changeset e568fd1029bb on 155349b645be
+  merging c
+  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
+  fix conflicts and see `hg help evolve.interrupted`
+  [1]
+
+  $ hg diff
+  diff -r 155349b645be c
+  --- a/c	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  @@ -1,1 +1,5 @@
+  +<<<<<<< destination: 155349b645be - test: added c
+   c
+  +=======
+  +cfoo
+  +>>>>>>> evolving:    e568fd1029bb - test: added c e
+  diff -r 155349b645be e
+  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/e	Thu Jan 01 00:00:00 1970 +0000
+  @@ -0,0 +1,1 @@
+  +e
+
+  $ echo c > c
+  $ hg res -m
+  (no more unresolved files)
+  continue: hg evolve --continue
+
+  $ hg evolve --continue
+  evolving 4:e568fd1029bb "added c e"
+  updating to "local" side of the conflict: 93cd84bbdaca
+  merging "other" content-divergent changeset '2af3359250d3'
+  file 'd' was deleted in other but was modified in local.
+  What do you want to do?
+  use (c)hanged version, (d)elete, or leave (u)nresolved? u
+  1 files updated, 0 files merged, 0 files removed, 1 files unresolved
+  fix conflicts and see `hg help evolve.interrupted`
+  [1]
+
+  $ hg sum
+  parent: 5:93cd84bbdaca 
+   added d
+  parent: 6:2af3359250d3 tip (content-divergent)
+   added c e
+  branch: default
+  commit: 1 modified, 1 unknown, 1 unresolved (merge)
+  update: (current)
+  phases: 1 draft
+  content-divergent: 1 changesets
+  evolve: (evolve --continue)
+
+  $ echo resolved > d
+  $ hg resolve -m d
+  (no more unresolved files)
+  continue: hg evolve --continue
+
+  $ hg evolve --continue
+  committed as bc1f4610744c
+  working directory is now at bc1f4610744c
+
+  $ hg export
+  # HG changeset patch
+  # User test
+  # Date 0 0
+  #      Thu Jan 01 00:00:00 1970 +0000
+  # Node ID bc1f4610744c6aa0e851d3876a61bfff6243b31c
+  # Parent  93cd84bbdacaeb8f881c29a609dbdd30c38cbc57
+  phase-divergent update to 93cd84bbdaca:
+  
+  added c e
+  
+  diff -r 93cd84bbdaca -r bc1f4610744c d
+  --- a/d	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/d	Thu Jan 01 00:00:00 1970 +0000
+  @@ -1,1 +1,1 @@
+  -dd
+  +resolved
+  diff -r 93cd84bbdaca -r bc1f4610744c e
+  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/e	Thu Jan 01 00:00:00 1970 +0000
+  @@ -0,0 +1,1 @@
+  +e
+
+  $ hg evolve -l
+  $ cd ..
 
 Testing the case when "merging results in same as public cset" where:
 both the csets are on same parent and no conflict in merging.