ostree/tests/test-delta.sh
Colin Walters b9df96db8b pull: Support deltas for explicit commits
I think the majority of OSTree usage calls pull with refs, not
explicit commits.  We even added special "override syntax" with
`@` (e.g. `ostree pull foo@ab12c34`) as a hybrid.

However, some users may want to still pull explicit commits
for whatever reason.  The old static delta logic looked at
the previous commit of the ref.  However, in https://github.com/ostreedev/ostree/pull/710
we enhanced the logic to look at all local commits.

It's now a lot more natural to teach the delta logic
to support revisions, e.g. `ostree pull someorigin ab12c34`.

This also fixes the problem that before, `--require-static-deltas`
was completely ignored when processing revisions.

This is a nontrivial refactoring of the logic, but the end
result feels a lot more readable to me.

Closes: https://github.com/ostreedev/ostree/issues/783

Closes: #787
Approved by: cgwalters
2017-04-12 21:30:33 +00:00

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#!/bin/bash
#
# Copyright (C) 2011,2013 Colin Walters <walters@verbum.org>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
set -euo pipefail
. $(dirname $0)/libtest.sh
skip_without_user_xattrs
bindatafiles="bash true ostree"
morebindatafiles="false ls"
echo '1..12'
mkdir repo
ostree_repo_init repo --mode=archive-z2
mkdir files
for bin in ${bindatafiles}; do
cp $(which ${bin}) files
done
${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
function permuteFile() {
permutation=$(($1 % 2))
output=$2
case $permutation in
0) dd if=/dev/zero count=40 bs=1 >> $output;;
1) echo aheader | cat - $output >> $output.new && mv $output.new $output;;
esac
}
function permuteDirectory() {
permutation=$1
dir=$2
for x in ${dir}/*; do
for z in $(seq ${permutation}); do
permuteFile ${z} ${x}
done
done
}
get_assert_one_direntry_matching() {
local path=$1
local r=$2
local child=""
local bn
for p in ${path}/*; do
bn=$(basename $p)
if ! echo ${bn} | grep -q "$r"; then
continue
fi
if test -z "${child}"; then
child=${bn}
else
assert_not_reached "Expected only one child matching ${r} in ${path}";
fi
done
if test -z "${child}"; then
assert_not_reached "Failed to find child matching ${r}"
fi
echo ${child}
}
origrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
${CMD_PREFIX} ostree --repo=repo static-delta generate --empty --to=${origrev}
${CMD_PREFIX} ostree --repo=repo static-delta generate --if-not-exists --empty --to=${origrev} > out.txt
assert_file_has_content out.txt "${origrev} already exists"
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ${origrev} || exit 1
${CMD_PREFIX} ostree --repo=repo prune
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ${origrev} || exit 1
permuteDirectory 1 files
${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
newrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
${CMD_PREFIX} ostree --repo=repo static-delta generate --if-not-exists --from=${origrev} --to=${newrev} --inline
${CMD_PREFIX} ostree --repo=repo static-delta generate --if-not-exists --from=${origrev} --to=${newrev} --inline > out.txt
assert_file_has_content out.txt "${origrev}-${newrev} already exists"
# Should regenerate
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline > out.txt
assert_not_file_has_content out.txt "${origrev}-${newrev} already exists"
deltaprefix=$(get_assert_one_direntry_matching repo/deltas '.')
deltadir=$(get_assert_one_direntry_matching repo/deltas/${deltaprefix} '-')
assert_has_file repo/deltas/${deltaprefix}/${deltadir}/superblock
assert_not_has_file repo/deltas/${deltaprefix}/${deltadir}/0
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev}
assert_has_file repo/deltas/${deltaprefix}/${deltadir}/superblock
assert_has_file repo/deltas/${deltaprefix}/${deltadir}/0
${CMD_PREFIX} ostree --repo=repo static-delta generate --disable-bsdiff --from=${origrev} --to=${newrev} 2>&1 | grep "bsdiff=0 objects"
${CMD_PREFIX} ostree --repo=repo static-delta generate --max-bsdiff-size=0 --from=${origrev} --to=${newrev} 2>&1 | grep "bsdiff=0 objects"
${CMD_PREFIX} ostree --repo=repo static-delta generate --max-bsdiff-size=10000 --from=${origrev} --to=${newrev} 2>&1 | grep "bsdiff=[1-9]"
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ${origrev}-${newrev} || exit 1
if ${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --empty 2>>err.txt; then
assert_not_reached "static-delta generate --from=${origrev} --empty unexpectedly succeeded"
fi
ostree_repo_init temp-repo --mode=archive
${CMD_PREFIX} ostree --repo=temp-repo pull-local repo
${CMD_PREFIX} ostree --repo=temp-repo static-delta generate --empty --to=${newrev} --filename=some.delta
assert_has_file some.delta
${CMD_PREFIX} ostree --repo=temp-repo static-delta list > delta-list.txt
assert_file_has_content delta-list.txt 'No static deltas'
rm temp-repo -rf
echo 'ok generate'
${CMD_PREFIX} ostree --repo=repo static-delta show ${origrev}-${newrev} > show.txt
assert_file_has_content show.txt 'Endianness: \(little\|big\)'
echo 'ok show'
${CMD_PREFIX} ostree --repo=repo static-delta generate --swap-endianness --from=${origrev} --to=${newrev}
${CMD_PREFIX} ostree --repo=repo static-delta show ${origrev}-${newrev} > show-swapped.txt
totalsize_orig=$(grep 'Total Size:' show.txt)
totalsize_swapped=$(grep 'Total Size:' show-swapped.txt)
assert_not_streq "${totalsize_orig}" ""
assert_streq "${totalsize_orig}" "${totalsize_swapped}"
echo 'ok generate + show endian swapped'
tar xf ${test_srcdir}/pre-endian-deltas-repo-big.tar.xz
mv pre-endian-deltas-repo{,-big}
tar xf ${test_srcdir}/pre-endian-deltas-repo-little.tar.xz
mv pre-endian-deltas-repo{,-little}
legacy_origrev=$(${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big rev-parse main^)
legacy_newrev=$(${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'
${CMD_PREFIX} ostree --repo=repo summary -u
mkdir repo2 && ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local --require-static-deltas repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
echo 'ok pull delta'
rm repo2 -rf
mkdir repo2 && ostree_repo_init repo2 --mode=bare-user
mkdir deltadir
deltaprefix=$(get_assert_one_direntry_matching repo/deltas '.')
deltadir=$(get_assert_one_direntry_matching repo/deltas/${deltaprefix} '-')
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline repo/deltas/${deltaprefix}/${deltadir}
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${newrev} >/dev/null
echo 'ok apply offline'
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline
assert_not_has_file repo/deltas/${deltaprefix}/${deltadir}/0
rm repo2 -rf
ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline repo/deltas/${deltaprefix}/${deltadir}
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${newrev} >/dev/null
echo 'ok apply offline inline'
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}-${newrev}$ || exit 1
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}$ || exit 1
${CMD_PREFIX} ostree --repo=repo static-delta delete ${origrev} || exit 1
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}-${newrev}$ || exit 1
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}$ && exit 1
${CMD_PREFIX} ostree --repo=repo static-delta delete ${origrev}-${newrev} || exit 1
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}-${newrev}$ && exit 1
${CMD_PREFIX} ostree --repo=repo static-delta list | grep ^${origrev}$ && exit 1
echo 'ok delete'
# Make another commit with no changes to create a delta with no parts
${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
samerev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${newrev} --to=${samerev}
${CMD_PREFIX} ostree --repo=repo static-delta show ${newrev}-${samerev} > show-empty.txt
nparts_empty=$(grep '^Number of parts:' show-empty.txt)
part0_meta_empty=$(grep '^PartMeta0:' show-empty.txt)
totalsize_empty=$(grep '^Total Uncompressed Size:' show-empty.txt)
assert_streq "${nparts_empty}" "Number of parts: 1"
assert_str_match "${part0_meta_empty}" "nobjects=0"
assert_streq "${totalsize_empty}" "Total Uncompressed Size: 0 (0 bytes)"
echo 'ok generate + show empty delta part'
${CMD_PREFIX} ostree --repo=repo summary -u
rm -rf repo2
mkdir repo2 && ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${newrev}
${CMD_PREFIX} ostree --repo=repo2 pull-local --require-static-deltas repo ${samerev}
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${samerev} >/dev/null
echo 'ok pull empty delta part'
# Make a new branch to test "rebase deltas"
echo otherbranch-content > files/otherbranch-content
${CMD_PREFIX} ostree --repo=repo commit -b otherbranch --tree=dir=files
samerev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=test --to=otherbranch
${CMD_PREFIX} ostree --repo=repo summary -u
${CMD_PREFIX} ostree --repo=repo2 pull-local --require-static-deltas repo otherbranch
echo 'ok rebase deltas'
${CMD_PREFIX} ostree --repo=repo summary -u
if ${CMD_PREFIX} ostree --repo=repo static-delta show GARBAGE 2> err.txt; then
assert_not_reached "static-delta show GARBAGE unexpectedly succeeded"
fi
assert_file_has_content err.txt "Invalid rev 'GARBAGE'"
echo 'ok handle bad delta name'