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patch: support diff data loss detection and upgrade...
patch: support diff data loss detection and upgrade In worst case, generating diff in upgrade mode can be two times more expensive than generating it in git mode directly: we may have to regenerate the whole diff again whenever a git feature is detected. Also, the first diff attempt is completely buffered instead of being streamed. That said, even without having profiled it yet, I am convinced we can fast-path the upgrade mode if necessary were it to be used in regular diff commands, and not only in mq where avoiding data loss is worth the price.

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test-execute-bit.out
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/ tests / test-execute-bit.out
Bryan O'Sullivan
See if execute bit is honoured when we go back in time
r5490 adding a
Alexis S. L. Carvalho
repo.status: also compare flags for files in the lookup list....
r6158 79abf14474dc tip
% make sure we notice the change of mode if the cached size == -1
n 0 -1 unset a
M a
Matt Mackall
merge: allow merging going backwards...
r8742 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
Bryan O'Sullivan
See if execute bit is honoured when we go back in time
r5490 d69afc33ff8a
not executable -- whew