diff mercurial/merge.py @ 45587:768412472663

merge: store cases when a file is absent post merge in commitinfo

Some merges can result in file being absent form working directory. This can be
one of file was kept deleted or file was removed by merge code.

User might revert the file back before committing. In such cases we will like to
have better handling and create new filenodes.

We store this info in mergestate as commitinfo so that we can use it while
committing to create new filenode if required.

Differential Revision: https://phab.mercurial-scm.org/D9003

--- a/mercurial/merge.py	Mon Sep 14 15:08:15 2020 +0530
+++ b/mercurial/merge.py	Mon Aug 24 15:35:34 2020 +0530
@@ -923,6 +923,15 @@
                     mresult.addfile(
                         f, mergestatemod.ACTION_REMOVE, None, b'other deleted',
                     )
+                    if branchmerge:
+                        # the file must be absent after merging,
+                        # howeber the user might make
+                        # the file reappear using revert and if they does,
+                        # we force create a new node
+                        mresult.addcommitinfo(
+                            f, b'merge-removal-candidate', b'yes'
+                        )
+
             else:  # file not in ancestor, not in remote
                 mresult.addfile(
                     f,
@@ -1033,6 +1042,12 @@
                     None,
                     b'local not present, remote unchanged',
                 )
+                if branchmerge:
+                    # the file must be absent after merging
+                    # however the user might make
+                    # the file reappear using revert and if they does,
+                    # we force create a new node
+                    mresult.addcommitinfo(f, b'merge-removal-candidate', b'yes')
 
     if repo.ui.configbool(b'experimental', b'merge.checkpathconflicts'):
         # If we are merging, look for path conflicts.