narrow: add support for merging add and remove outside of the tracked set

This extend f1eb77dceb36 to test and support the remaining action. Or, at least,
the simple incarnation of them.

Differential Revision: https://phab.mercurial-scm.org/D12181

tests/test-narrow-merge-outside.t

@@ -0,0 +1,111 b''
+===================================================================
+Test merge behavior with narrow for item outside of the narrow spec
+===================================================================
+
+This test currently check for  simple "outside of narrow" merge case. I suspect
+there might be more corner case that need testing, so extending this tests, or
+replacing it by a more "generative" version, comparing behavior with and without narow.
+
+This the feature is currently working with flat manifest only. This is the only
+case tested. Consider using test-case if tree start supporting this case of
+merge.
+
+Create some initial setup
+
+  $ . "$TESTDIR/narrow-library.sh"
+
+  $ hg init server
+  $ echo root > server/root
+  $ mkdir server/inside
+  $ mkdir server/outside
+  $ echo babar > server/inside/inside-change
+  $ echo pom > server/outside/outside-changing
+  $ echo arthur > server/outside/outside-removed
+  $ hg -R server add server/
+  adding server/inside/inside-change
+  adding server/outside/outside-changing
+  adding server/outside/outside-removed
+  adding server/root
+  $ hg -R server commit -m root
+
+
+
+  $ hg clone ssh://user@dummy/server client --narrow --include inside
+  requesting all changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 1 changesets with 1 changes to 1 files
+  new changesets a0c415d360e5
+  updating to branch default
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+
+"trivial" change outside of narrow spec on the server
+
+  $ echo zephir > server/outside/outside-added
+  $ hg -R server add server/outside/outside-added
+  $ echo flore > server/outside/outside-changing
+  $ hg -R server remove server/outside/outside-removed
+  $ hg -R server commit -m "outside change"
+
+Merge them with some unrelated local change
+
+  $ echo celeste > client/inside/inside-change
+  $ hg -R client commit -m "inside change"
+  $ hg -R client pull
+  pulling from ssh://user@dummy/server
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 1 changesets with 0 changes to 0 files (+1 heads)
+  new changesets f9ec5453023e
+  (run 'hg heads' to see heads, 'hg merge' to merge)
+  $ hg -R client merge
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+  $ hg -R client ci -m 'merge changes'
+  $ hg -R client push -r .
+  pushing to ssh://user@dummy/server
+  searching for changes
+  remote: adding changesets
+  remote: adding manifests
+  remote: adding file changes
+  remote: added 2 changesets with 1 changes to 1 files
+
+Checking result
+---------------
+
+general sentry of all output
+
+  $ hg --repository server manifest --debug --rev 0
+  360afd990eeff79e4a7f9f3ded5ecd7bc2fd3b59 644   inside/inside-change
+  7db95ce5cd8e734ad12e3f5f37779a08070a1399 644   outside/outside-changing
+  1591f6db41a30b68bd94ddccf4a4ce4f4fbe2a44 644   outside/outside-removed
+  50ecbc31c0e82dd60c2747c434d1f11b85c0e178 644   root
+  $ hg --repository server manifest --debug --rev 1
+  360afd990eeff79e4a7f9f3ded5ecd7bc2fd3b59 644   inside/inside-change
+  486c008d6dddcaeb5e5f99556a121800cdcfb149 644   outside/outside-added
+  153d7af5e4f53f44475bc0ff2b806c86f019eda4 644   outside/outside-changing
+  50ecbc31c0e82dd60c2747c434d1f11b85c0e178 644   root
+
+  $ hg --repository server manifest --debug --rev 2
+  1b3ab69c6c847abc8fd25537241fedcd4d188668 644   inside/inside-change
+  7db95ce5cd8e734ad12e3f5f37779a08070a1399 644   outside/outside-changing
+  1591f6db41a30b68bd94ddccf4a4ce4f4fbe2a44 644   outside/outside-removed
+  50ecbc31c0e82dd60c2747c434d1f11b85c0e178 644   root
+  $ hg --repository server manifest --debug --rev 3
+  1b3ab69c6c847abc8fd25537241fedcd4d188668 644   inside/inside-change
+  486c008d6dddcaeb5e5f99556a121800cdcfb149 644   outside/outside-added
+  153d7af5e4f53f44475bc0ff2b806c86f019eda4 644   outside/outside-changing
+  50ecbc31c0e82dd60c2747c434d1f11b85c0e178 644   root
+
+The file changed outside should be changed by the merge
+
+  $ hg --repository server manifest --debug --rev 'desc("inside change")' | grep outside-changing
+  7db95ce5cd8e734ad12e3f5f37779a08070a1399 644   outside/outside-changing
+
+  $ hg --repository server manifest --debug --rev 'desc("outside change")' | grep outside-changing
+  153d7af5e4f53f44475bc0ff2b806c86f019eda4 644   outside/outside-changing
+  $ hg --repository server manifest --debug --rev 'desc("merge")' | grep outside-changing
+  153d7af5e4f53f44475bc0ff2b806c86f019eda4 644   outside/outside-changing

mercurial/commit.py

@@ -211,7 +211,16 b' def _process_files(tr, ctx, ms, files, n'
         repo.ui.note(uipathfn(f) + b"\n")
         if f in narrow_files:
             narrow_action = narrow_files.get(f)
-            if narrow_action == mergestate.CHANGE_MODIFIED:
+            if narrow_action == mergestate.CHANGE_REMOVED:
+                files.mark_removed(f)
+                removed.append(f)
+            elif narrow_action == mergestate.CHANGE_ADDED:
+                files.mark_added(f)
+                added.append(f)
+                m[f] = m2[f]
+                flags = m2ctx.find(f)[1] or b''
+                m.setflag(f, flags)
+            elif narrow_action == mergestate.CHANGE_MODIFIED:
                 files.mark_touched(f)
                 added.append(f)
                 m[f] = m2[f]

mercurial/merge.py

@@ -519,10 +519,7 b' def _filternarrowactions(narrowmatch, br'
         elif action[0].no_op:
             mresult.removefile(f)  # merge does not affect file
         elif action[0].narrow_safe:
-            if (
-                not f.endswith(b'/')
-                and action[0].changes == mergestatemod.CHANGE_MODIFIED
-            ):
+            if not f.endswith(b'/'):
                 mresult.removefile(f)  # merge won't affect on-disk files
 
                 mresult.addcommitinfo(