# HG changeset patch
# User Jason R. Coombs <jaraco@jaraco.com>
# Date 2022-08-29 18:11:26
# Node ID 636cd96806a7ec27c5310510a8016a888a37b538
# Parent  18282cf18aa2817e57c9648c8f2d9a563d1fa9cd

shelve: add Shelf.changed_files for resolving changed files in a plugin

diff --git a/mercurial/shelve.py b/mercurial/shelve.py
--- a/mercurial/shelve.py
+++ b/mercurial/shelve.py
@@ -247,6 +247,14 @@ class Shelf:
         for ext in shelvefileextensions:
             self.vfs.tryunlink(self.name + b'.' + ext)
 
+    def changed_files(self, ui, repo):
+        try:
+            ctx = repo.unfiltered()[self.readinfo()[b'node']]
+            return ctx.files()
+        except (FileNotFoundError, error.RepoLookupError):
+            filename = self.vfs.join(self.name + b'.patch')
+            return patch.changedfiles(ui, repo, filename)
+
 
 def _optimized_match(repo, node):
     """