view tests/test-encode @ 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>
date Wed, 03 Oct 2007 17:17:27 -0500
parents c0b449154a90
children
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#!/bin/sh

hg init

cat > .hg/hgrc <<EOF
[encode]
*.gz = gunzip

[decode]
*.gz = gzip

EOF

echo "this is a test" | gzip > a.gz
hg add a.gz
hg ci -m "test" -d "1000000 0"
echo %% no changes
hg status
touch a.gz

echo %% no changes
hg status

echo %% uncompressed contents in repo
hg debugdata .hg/store/data/a.gz.d 0

echo %% uncompress our working dir copy
gunzip < a.gz

rm a.gz
hg co

echo %% uncompress our new working dir copy
gunzip < a.gz