#!/bin/sh
test_description="Test whether cache-tree is properly updated
Tests whether various commands properly update and/or rewrite the
cache-tree extension.
"
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
cmp_cache_tree () {
test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual &&
sed "s/$OID_REGEX/SHA/" <actual >filtered &&
test_cmp "$1" filtered &&
rm filtered
}
# We don't bother with actually checking the SHA1:
# test-tool dump-cache-tree already verifies that all existing data is
# correct.
generate_expected_cache_tree () {
pathspec="$1" &&
dir="$2${2:+/}" &&
git ls-tree --name-only HEAD -- "$pathspec" >files &&
git ls-tree --name-only -d HEAD -- "$pathspec" >subtrees &&
printf "SHA %s (%d entries, %d subtrees)\n" "$dir" $(wc -l <files) $(wc -l <subtrees) &&
while read subtree
do
generate_expected_cache_tree "$pathspec/$subtree/" "$subtree" || return 1
done <subtrees
}
test_cache_tree () {
generate_expected_cache_tree "." >expect &&
cmp_cache_tree expect &&
rm expect actual files subtrees &&
git status --porcelain -- ':!status' ':!expected.status' >status &&
if test -n "$1"
then
test_cmp "$1" status
else
test_must_be_empty status
fi
}
test_invalid_cache_tree () {
printf "invalid %s ()\n" "" "$@" >expect &&
test-tool dump-cache-tree |
sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual &&
test_cmp expect actual
}
test_no_cache_tree () {
>expect &&
cmp_cache_tree expect
}
test_expect_success 'initial commit has cache-tree' '
test_commit foo &&
test_cache_tree
'
test_expect_success 'read-tree HEAD establishes cache-tree' '
git read-tree HEAD &&
test_cache_tree
'
test_expect_success 'git-add invalidates cache-tree' '
test_when_finished "git reset --hard; git read-tree HEAD" &&
echo "I changed this file" >foo &&
git add foo &&
test_invalid_cache_tree
'
test_expect_success 'git-add in subdir invalidates cache-tree' '
test_when_finished "git reset --hard; git read-tree HEAD" &&
mkdir dirx &&
echo "I changed this file" >dirx/foo &&
git add dirx/foo &&
test_invalid_cache_tree
'
test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' '
git tag no-children &&
test_when_finished "git reset --hard no-children; git read-tree HEAD" &&
mkdir dir1 dir2 &&
test_commit dir1/a &&
test_commit dir2/b &&
echo "I changed this file" >dir1/a &&
test_when_finished "rm before" &&
cat >before <<-\EOF &&
SHA (3 entries, 2 subtrees)
SHA dir1/ (1 entries, 0 subtrees)
SHA dir2/ (1 entries, 0 subtrees)
EOF
cmp_cache_tree before &&
echo "I changed this file" >dir1/a &&
git add dir1/a &&
cat >expect <<-\EOF &&
invalid (2 subtrees)
invalid dir1/ (0 subtrees)
SHA dir2/ (1 entries, 0 subtrees)
EOF
cmp_cache_tree expect
'
test_expect_success 'update-index invalidates cache-tree' '
test_when_finished "git reset --hard; git read-tree HEAD" &&
echo "I changed this file" >foo &&
git update-index --add foo &&
test_invalid_cache_tree
'
test_expect_success 'write-tree establishes cache-tree' '
test-tool scrap-cache-tree &&
git write-tree &&
test_cache_tree
'
test_expect_success 'test-tool scrap-cache-tree works' '
git read-tree HEAD &&
test-tool scrap-cache-tree &&
test_no_cache_tree
'
test_expect_success 'second commit has cache-tree' '
test_commit bar &&
test_cache_tree
'
test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' '
test_when_finished "git reset --hard" &&
cat <<-\EOT >foo.c &&
int foo()
{
return 42;
}
int bar()
{
return 42;
}
EOT
git add foo.c &&
test_invalid_cache_tree &&
git commit -m "add a file" &&
test_cache_tree &&
cat <<-\EOT >foo.c &&
int foo()
{
return 43;
}
int bar()
{
return 44;
}
EOT
test_write_lines p 1 "" s n y q |
git commit --interactive -m foo &&
cat <<-\EOF >expected.status &&
M foo.c
EOF
test_cache_tree expected.status
'
test_expect_success PERL 'commit -p with shrinking cache-tree' '
mkdir -p deep/very-long-subdir &&
echo content >deep/very-long-subdir/file &&
git add deep &&
git commit -m add &&
git rm -r deep &&
before=$(wc -c <.git/index) &&
git commit -m delete -p &&
after=$(wc -c <.git/index) &&
# double check that the index shrank
test $before -gt $after &&
# and that our index was not corrupted
git fsck
'
test_expect_success 'commit in child dir has cache-tree' '
mkdir dir &&
>dir/child.t &&
git add dir/child.t &&
git commit -m dir/child.t &&
test_cache_tree
'
test_expect_success 'reset --hard gives cache-tree' '
test-tool scrap-cache-tree &&
git reset --hard &&
test_cache_tree
'
test_expect_success 'reset --hard without index gives cache-tree' '
rm -f .git/index &&
git clean -fd &&
git reset --hard &&
test_cache_tree
'
test_expect_success 'checkout gives cache-tree' '
git tag current &&
git checkout HEAD^ &&
test_cache_tree
'
test_expect_success 'checkout -b gives cache-tree' '
git checkout current &&
git checkout -b prev HEAD^ &&
test_cache_tree
'
test_expect_success 'checkout -B gives cache-tree' '
git checkout current &&
git checkout -B prev HEAD^ &&
test_cache_tree
'
test_expect_success 'merge --ff-only maintains cache-tree' '
git checkout current &&
git checkout -b changes &&
test_commit llamas &&
test_commit pachyderm &&
test_cache_tree &&
git checkout current &&
test_cache_tree &&
git merge --ff-only changes &&
test_cache_tree
'
test_expect_success 'merge maintains cache-tree' '
git checkout current &&
git checkout -b changes2 &&
test_commit alpacas &&
test_cache_tree &&
git checkout current &&
test_commit struthio &&
test_cache_tree &&
git merge changes2 &&
test_cache_tree
'
test_expect_success 'partial commit gives cache-tree' '
git checkout -b partial no-children &&
test_commit one &&
test_commit two &&
echo "some change" >one.t &&
git add one.t &&
echo "some other change" >two.t &&
git commit two.t -m partial &&
cat <<-\EOF >expected.status &&
M one.t
EOF
test_cache_tree expected.status
'
test_expect_success 'no phantom error when switching trees' '
mkdir newdir &&
>newdir/one &&
git add newdir/one &&
git checkout 2>errors &&
test_must_be_empty errors
'
test_expect_success 'switching trees does not invalidate shared index' '
(
sane_unset GIT_TEST_SPLIT_INDEX &&
git update-index --split-index &&
>split &&
git add split &&
test-tool dump-split-index .git/index | grep -v ^own >before &&
git commit -m "as-is" &&
test-tool dump-split-index .git/index | grep -v ^own >after &&
test_cmp before after
)
'
test_done
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