manifest: teach treemanifest about long hashes
Differential Revision: https://phab.mercurial-scm.org/D8369
--- a/mercurial/manifest.py Tue Jan 07 13:47:29 2020 -0500
+++ b/mercurial/manifest.py Thu Apr 02 15:52:10 2020 -0400
@@ -1027,7 +1027,12 @@
self._dirs[dir] = treemanifest(self._subpath(dir))
self._dirs[dir].__setitem__(subpath, n)
else:
- self._files[f] = n[:21] # to match manifestdict's behavior
+ # manifest nodes are either 20 bytes or 32 bytes,
+ # depending on the hash in use. An extra byte is
+ # occasionally used by hg, but won't ever be
+ # persisted. Trim to 21 or 33 bytes as appropriate.
+ trim = 21 if len(n) < 25 else 33
+ self._files[f] = n[:trim] # to match manifestdict's behavior
self._dirty = True
def _load(self):