Mercurial > hg-stable
view tests/test-issue612 @ 10189:e451e599fbcf
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.
author | Patrick Mezard <pmezard@gmail.com> |
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date | Fri, 01 Jan 2010 20:54:05 +0100 |
parents | 9797124581c9 |
children | 4c94b6d0fb1c |
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#!/bin/sh mkdir t cd t hg init mkdir src echo a > src/a.c hg ci -Ama -d "10000000 0" hg mv src source hg ci -Ammove -d "1000000 0" hg co -C 0 echo new > src/a.c echo compiled > src/a.o hg ci -mupdate -d "1000000 0" hg st hg merge hg st