Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-extdiff @ 5451:0a43875677b1
revlog: break up compression of large deltas
Python's zlib apparently makes an internal copy of strings passed to
compress(). To avoid this, compress strings 1M at a time, then join
them at the end if the result would be smaller than the original.
For initial commits of large but compressible files, this cuts peak
memory usage nearly in half.
author | Matt Mackall <mpm@selenic.com> |
---|---|
date | Thu, 11 Oct 2007 00:46:54 -0500 |
parents | d4fa6bafc43a |
children |
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#!/bin/sh echo "[extensions]" >> $HGRCPATH echo "extdiff=" >> $HGRCPATH hg init a cd a echo a > a echo b > b hg add # should diff cloned directories hg extdiff -o -r $opt echo "[extdiff]" >> $HGRCPATH echo "cmd.falabala=echo" >> $HGRCPATH echo "opts.falabala=diffing" >> $HGRCPATH hg falabala hg help falabala hg ci -d '0 0' -mtest1 echo b >> a hg ci -d '1 0' -mtest2 # should diff cloned files directly hg falabala -r 0:1 # test diff during merge hg update 0 echo c >> c hg add c hg ci -m "new branch" -d '1 0' hg update -C 1 hg merge tip # should diff cloned file against wc file hg falabala > out || echo "diff-like tools yield a non-zero exit code" # cleanup the output since the wc is a tmp directory sed 's:\(.* \).*\(\/test-extdiff\):\1[tmp]\2:' out