diff tests/test-narrow-merge.t @ 48716:f1eb77dceb36

narrow: allow merging non-conflicting change outside of the narrow spec

We use the mergestate to carry information about these merge action and
reprocess them at commit time to apply the necessary update.

The dirstate itself is never affected and remains "pure", with content only in
the narrow-spec. This file involved in such merge are therefor not listed in `hg
status`.

The current testing is based on a modification of the previous testing, that
refused to do such merges. As a result it is a bit simple and more extensive
code and testing testing will have to be introduced later. I am planning to do
this extra testing, soon.

In addition, this only works for flat manifest. Support for tree manifest will
need more work. I am not currently planning to do this work.

Differential Revision: https://phab.mercurial-scm.org/D12119

--- a/tests/test-narrow-merge.t	Sun Jan 30 06:01:42 2022 +0100
+++ b/tests/test-narrow-merge.t	Thu Feb 03 18:14:11 2022 +0100
@@ -83,12 +83,67 @@
 TODO: Can merge non-conflicting changes outside narrow spec
 
   $ hg update -q 'desc("modify inside/f1")'
+
+#if flat
+
   $ hg merge 'desc("modify outside/f1")'
-  abort: merge affects file 'outside/f1' outside narrow, which is not yet supported (flat !)
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+
+status should be clean
+
+  $ hg status
+  ? inside/f1.orig
+
+file out of the spec should still not be in the dirstate at all
+
+  $ hg debugdirstate | grep outside/f1
+  [1]
+
+Commit that merge
+
+  $ hg ci -m 'merge from outside to inside'
+
+status should be clean
+
+  $ hg status
+  ? inside/f1.orig
+
+file out of the spec should not be in the mergestate anymore
+
+  $ hg debugmergestate | grep outside/f1
+  [1]
+
+file out of the spec should still not be in the dirstate at all
+
+  $ hg debugdirstate | grep outside/f1
+  [1]
+
+The filenode used should come from p2
+
+  $ hg manifest --debug --rev . | grep outside/f1
+  83cd11431a3b2aff8a3995e5f27bcf33cdb5be98 644   outside/f1
+  $ hg manifest --debug --rev 'p1(.)' | grep outside/f1
+  c6b956c48be2cd4fa94be16002aba311143806fa 644   outside/f1
+  $ hg manifest --debug --rev 'p2(.)' | grep outside/f1
+  83cd11431a3b2aff8a3995e5f27bcf33cdb5be98 644   outside/f1
+
+
+remove the commit to get in the previous situation again
+
+  $ hg debugstrip -r .
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/48eb25338b19-a1bb8350-backup.hg
+
+#else
+
+  $ hg merge 'desc("modify outside/f1")'
   abort: merge affects file 'outside/' outside narrow, which is not yet supported (tree !)
   (merging in the other direction may work)
   [255]
 
+#endif
+
   $ hg update -q 'desc("modify outside/f1")'
   $ hg merge 'desc("modify inside/f1")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved