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author | Colin Walters <walters@verbum.org> | 2016-02-24 17:04:04 -0500 |
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committer | Colin Walters <walters@verbum.org> | 2016-02-26 08:19:01 -0500 |
commit | 7fdf07271031cd4a88af9280b41ece5dc7c1d580 (patch) | |
tree | 6eb35793c1b0fc0bca80a61ac2b1f3dab24850ca /tests/test-delta.sh | |
parent | 04d77da0056c89f2f18ae9e47ef121c960f2307b (diff) | |
download | ostree-7fdf07271031cd4a88af9280b41ece5dc7c1d580.tar.gz |
deltas: Heuristically detect endianness for older deltas
If the average object size is greater than 4GiB, let's assume we're
dealing with opposite endianness. I'm fairly confident no one is
going to be shipping peta- or exa- byte size ostree deltas, period.
Past the gigabyte scale you really want bittorrent or something.
Diffstat (limited to 'tests/test-delta.sh')
-rwxr-xr-x | tests/test-delta.sh | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/test-delta.sh b/tests/test-delta.sh index 4679ab8e..ebe35571 100755 --- a/tests/test-delta.sh +++ b/tests/test-delta.sh @@ -128,6 +128,27 @@ assert_streq "${totalsize_orig}" "${totalsize_swapped}" echo 'ok generate + show endian swapped' +tar xf ${SRCDIR}/pre-endian-deltas-repo-big.tar.xz +mv pre-endian-deltas-repo{,-big} +tar xf ${SRCDIR}/pre-endian-deltas-repo-little.tar.xz +mv pre-endian-deltas-repo{,-little} +legacy_origrev=$(${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big rev-parse main^) +legacy_newrev=$(${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big rev-parse main) +${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big static-delta show ${legacy_origrev}-${legacy_newrev} > show-legacy-big.txt +totalsize_legacy_big=$(grep 'Total Size:' show-legacy-big.txt) +${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big static-delta show ${legacy_origrev}-${legacy_newrev} > show-legacy-little.txt +totalsize_legacy_little=$(grep 'Total Size:' show-legacy-little.txt) +for f in show-legacy-{big,little}.txt; do + if grep 'Endianness:.*heuristic' $f; then + found_heuristic=yes + break + fi +done +assert_streq "${found_heuristic}" "yes" +assert_streq "${totalsize_legacy_big}" "${totalsize_legacy_little}" + +echo 'ok heuristic endian detection' + mkdir repo2 && ${CMD_PREFIX} ostree --repo=repo2 init --mode=archive-z2 ${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${newrev} ${CMD_PREFIX} ostree --repo=repo2 fsck |