view tests/test-patch @ 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.

#!/bin/sh

cat > patchtool.py <<EOF
import sys
print 'Using custom patch'
if '--binary' in sys.argv:
    print '--binary found !'
EOF

echo "[ui]" >> $HGRCPATH
echo "patch=python ../patchtool.py" >> $HGRCPATH

hg init a
cd a
echo a > a
hg commit -Ama -d '1 0'
echo b >> a
hg commit -Amb -d '2 0'
cd ..

# This test check that:
# - custom patch commands with arguments actually works
# - patch code does not try to add weird arguments like
# --binary when custom patch commands are used. For instance
# --binary is added by default under win32.

echo % check custom patch options are honored
hg --cwd a export -o ../a.diff tip
hg clone -r 0 a b

hg --cwd b import -v ../a.diff