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
hglocate()
{
echo "hg locate $@"
hg locate "$@"
ret=$?
echo
return $ret
}
mkdir t
cd t
hg init
echo 0 > a
echo 0 > b
echo 0 > t.h
mkdir t
echo 0 > t/x
echo 0 > t/b
echo 0 > t/e.h
mkdir dir.h
echo 0 > dir.h/foo
hg ci -A -m m -d "1000000 0"
touch nottracked
hglocate a && echo locate succeeded || echo locate failed
hglocate NONEXISTENT && echo locate succeeded || echo locate failed
hglocate
hg rm a
hg ci -m m -d "1000000 0"
hglocate a
hglocate NONEXISTENT
hglocate relpath:NONEXISTENT
hglocate
hglocate -r 0 a
hglocate -r 0 NONEXISTENT
hglocate -r 0 relpath:NONEXISTENT
hglocate -r 0
echo % -I/-X with relative path should work
cd t
hglocate
hglocate -I ../t
# test issue294
cd ..
rm -r t
hglocate 't/**'
mkdir otherdir
cd otherdir
hglocate b
hglocate '*.h'
hglocate path:t/x
hglocate 're:.*\.h$'
hglocate -r 0 b
hglocate -r 0 '*.h'
hglocate -r 0 path:t/x
hglocate -r 0 're:.*\.h$'