--- a/mercurial/revlogutils/deltas.py Thu Jun 08 02:49:10 2023 +0200
+++ b/mercurial/revlogutils/deltas.py Thu Jun 08 03:11:51 2023 +0200
@@ -1296,18 +1296,17 @@
dbg['p1-chain-len'] = p1_chain_len
dbg['p2-chain-len'] = p2_chain_len
- if not revinfo.textlen:
+ # 1) if the revision is empty, no amount of delta can beat it
+ #
+ # 2) no delta for flag processor revision (see "candelta" for why)
+ # not calling candelta since only one revision needs test, also to
+ # avoid overhead fetching flags again.
+ if not revinfo.textlen or revinfo.flags & REVIDX_RAWTEXT_CHANGING_FLAGS:
return self._fullsnapshotinfo(fh, revinfo, target_rev)
if excluded_bases is None:
excluded_bases = set()
- # no delta for flag processor revision (see "candelta" for why)
- # not calling candelta since only one revision needs test, also to
- # avoid overhead fetching flags again.
- if revinfo.flags & REVIDX_RAWTEXT_CHANGING_FLAGS:
- return self._fullsnapshotinfo(fh, revinfo, target_rev)
-
# count the number of different delta we tried (for debug purpose)
dbg_try_count = 0
# count the number of "search round" we did. (for debug purpose)