view tests/test-bundle @ 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

cp "$TESTDIR"/printenv.py .

hg init test
cd test
echo 0 > afile
hg add afile
hg commit -m "0.0" -d "1000000 0"
echo 1 >> afile
hg commit -m "0.1" -d "1000000 0"
echo 2 >> afile
hg commit -m "0.2" -d "1000000 0"
echo 3 >> afile
hg commit -m "0.3" -d "1000000 0"
hg update -C 0
echo 1 >> afile
hg commit -m "1.1" -d "1000000 0"
echo 2 >> afile
hg commit -m "1.2" -d "1000000 0"
echo "a line" > fred
echo 3 >> afile
hg add fred
hg commit -m "1.3" -d "1000000 0"
hg mv afile adifferentfile
hg commit -m "1.3m" -d "1000000 0"
hg update -C 3
hg mv afile anotherfile
hg commit -m "0.3m" -d "1000000 0"
hg verify
cd ..
hg init empty
hg -R test bundle full.hg empty
hg -R test unbundle full.hg
hg -R empty heads
hg -R empty verify

hg --cwd test pull ../full.hg
hg --cwd empty pull ../full.hg
hg -R empty rollback
hg --cwd empty pull ../full.hg

rm -r empty
hg init empty
cd empty
hg -R bundle://../full.hg log
echo '[hooks]' >> .hg/hgrc
echo 'changegroup = python ../printenv.py changegroup' >> .hg/hgrc
#doesn't work (yet ?)
#hg -R bundle://../full.hg verify
hg pull bundle://../full.hg
cd ..

rm -r empty
hg init empty
hg clone -r 3 test partial
hg clone partial partial2
cd partial
hg -R bundle://../full.hg log
hg incoming bundle://../full.hg
hg -R bundle://../full.hg outgoing ../partial2
hg -R bundle://../does-not-exist.hg outgoing ../partial2
cd ..

# test for http://www.selenic.com/mercurial/bts/issue216
rm -r empty
hg init empty
hg -R test bundle --base null -r 0 ../0.hg
hg -R test bundle --base 0    -r 1 ../1.hg
hg -R empty unbundle -u ../0.hg ../1.hg

# test for 540d1059c802
hg init orig
cd orig
echo foo > foo
hg add foo
hg ci -m 'add foo' -d '0 0'

hg clone . ../copy
hg tag -d '0 0' foo

cd ../copy
echo >> foo
hg ci -m 'change foo' -d '0 0'
hg bundle ../bundle.hg ../orig

cd ../orig
hg incoming ../bundle.hg
cd ..