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git/t/t5705-clone-2gb.sh
Shawn O. Pearce 5eef828bc0 fast-import: Stream very large blobs directly to pack
If a blob is larger than the configured big-file-threshold, instead
of reading it into a single buffer obtained from malloc, stream it
onto the end of the current pack file.  Streaming the larger objects
into the pack avoids the 4+ GiB memory footprint that occurs when
fast-import is processing 2+ GiB blobs.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-01 12:09:47 -08:00

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#!/bin/sh
test_description='Test cloning a repository larger than 2 gigabyte'
. ./test-lib.sh
test -z "$GIT_TEST_CLONE_2GB" &&
say "Skipping expensive 2GB clone test; enable it with GIT_TEST_CLONE_2GB=t" &&
test_done &&
exit
test_expect_success 'setup' '
git config pack.compression 0 &&
git config pack.depth 0 &&
blobsize=$((20*1024*1024)) &&
blobcount=$((2*1024*1024*1024/$blobsize+1)) &&
i=1 &&
(while test $i -le $blobcount
do
printf "Generating blob $i/$blobcount\r" >&2 &&
printf "blob\nmark :$i\ndata $blobsize\n" &&
#test-genrandom $i $blobsize &&
printf "%-${blobsize}s" $i &&
echo "M 100644 :$i $i" >> commit
i=$(($i+1)) ||
echo $? > exit-status
done &&
echo "commit refs/heads/master" &&
echo "author A U Thor <author@email.com> 123456789 +0000" &&
echo "committer C O Mitter <committer@email.com> 123456789 +0000" &&
echo "data 5" &&
echo ">2gb" &&
cat commit) |
git fast-import --big-file-threshold=2 &&
test ! -f exit-status
'
test_expect_success 'clone' '
git clone --bare --no-hardlinks . clone
'
test_done