Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-parentrevspec @ 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 | 4fe04b183fd8 |
children |
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#!/bin/sh commit() { msg=$1 p1=$2 p2=$3 if [ "$p1" ]; then hg up -qC $p1 fi if [ "$p2" ]; then HGMERGE=true hg merge -q $p2 fi echo >> foo hg commit -d '0 0' -qAm "$msg" foo } hg init repo cd repo echo '[extensions]' > .hg/hgrc echo 'hgext.parentrevspec =' >> .hg/hgrc commit '0: add foo' commit '1: change foo 1' commit '2: change foo 2a' commit '3: change foo 3a' commit '4: change foo 2b' 1 commit '5: merge' 3 4 commit '6: change foo again' hg log --template '#rev#:#node|short# #parents#\n' echo lookup() { for rev in "$@"; do printf "$rev: " hg id -nr $rev done true } tipnode=`hg id -ir tip` echo 'should work with tag/branch/node/rev' for r in tip default $tipnode 6; do lookup "$r^" done echo echo 'some random lookups' lookup "6^^" "6^^^" "6^^^^" "6^^^^^" "6^^^^^^" "6^1" "6^2" "6^^2" "6^1^2" "6^^3" lookup "6~" "6~1" "6~2" "6~3" "6~4" "6~5" "6~42" "6~1^2" "6~1^2~2" echo echo 'with a tag "6^" pointing to rev 1' hg tag -l -r 1 "6^" lookup "6^" "6^1" "6~1" "6^^" echo echo 'with a tag "foo^bar" pointing to rev 2' hg tag -l -r 2 "foo^bar" lookup "foo^bar" "foo^bar^"