Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-update-reverse @ 5369:7530334bf301
revlog: generate trivial deltas against null revision
To avoid extra memory usage and performance issues with large files,
generate a trivial delta header for deltas against the null revision
rather than calling the usual delta generator.
We append the delta header to meta rather than prepending it to data
to avoid a large allocate and copy.
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 03 Oct 2007 17:17:27 -0500 |
parents | 7544700fd931 |
children |
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#!/bin/sh hg init touch a hg add a hg commit -m "Added a" -d "1000000 0" touch main hg add main hg commit -m "Added main" -d "1000000 0" hg checkout 0 echo Main should be gone ls touch side1 hg add side1 hg commit -m "Added side1" -d "1000000 0" touch side2 hg add side2 hg commit -m "Added side2" -d "1000000 0" hg log echo Should have two heads, side2 and main hg heads echo Should show "a side1 side2" ls hg update --debug -C 1 echo Should only show "a main" ls