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copies: do not initialize the dictionary with root in changeset copies
authorPierre-Yves David <pierre-yves.david@octobus.net>
Wed, 13 Nov 2019 09:39:44 +0100
changeset 43785 3b039e43a1e6
parent 43784 995066c41bb2
child 43786 421ea5772039
copies: do not initialize the dictionary with root in changeset copies We don't strictly need the dict to be prefiled with `{}`. Not doing so will make the next changeset simpler. This part of a preparation to use native code for this part of copy tracing.
mercurial/copies.py file | annotate | diff | comparison | revisions 
--- a/mercurial/copies.py	Wed Nov 13 20:42:08 2019 +0100
+++ b/mercurial/copies.py	Wed Nov 13 09:39:44 2019 +0100
@@ -281,10 +281,13 @@
     iterrevs &= mrset
     iterrevs.update(roots)
     iterrevs.remove(b.rev())
-    all_copies = {r: {} for r in roots}
+    all_copies = {}
     alwaysmatch = match.always()
     for r in sorted(iterrevs):
-        copies = all_copies.pop(r)
+        copies = all_copies.pop(r, None)
+        if copies is None:
+            # this is a root
+            copies = {}
         for i, c in enumerate(children[r]):
             p1, p2, p1copies, p2copies, removed = revinfo(c)
             if r == p1:
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