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#!/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-lib.sh
cmp_cache_tree () {
test-dump-cache-tree | sed -e '/#(ref)/d' >actual &&
sed "s/$_x40/SHA/" <actual >filtered &&
test_cmp "$1" filtered
}
# We don't bother with actually checking the SHA1:
# test-dump-cache-tree already verifies that all existing data is
# correct.
generate_expected_cache_tree_rec () {
dir="$1${1:+/}" &&
parent="$2" &&
# ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux
# We want to count only foo because it's the only direct child
subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq) &&
subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') &&
entries=$(git ls-files|wc -l) &&
printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" &&
for subtree in $subtrees
do
cd "$subtree"
generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1
cd ..
done &&
dir=$parent
}
generate_expected_cache_tree () {
(
generate_expected_cache_tree_rec
)
}
test_cache_tree () {
generate_expected_cache_tree >expect &&
cmp_cache_tree expect
}
test_invalid_cache_tree () {
printf "invalid %s ()\n" "" "$@" >expect &&
test-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
'
cat >before <<\EOF
SHA (3 entries, 2 subtrees)
SHA dir1/ (1 entries, 0 subtrees)
SHA dir2/ (1 entries, 0 subtrees)
EOF
cat >expect <<\EOF
invalid (2 subtrees)
invalid dir1/ (0 subtrees)
SHA dir2/ (1 entries, 0 subtrees)
EOF
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 &&
cmp_cache_tree before &&
echo "I changed this file" >dir1/a &&
git add dir1/a &&
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-scrap-cache-tree &&
git write-tree &&
test_cache_tree
'
test_expect_success 'test-scrap-cache-tree works' '
git read-tree HEAD &&
test-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' '
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
(echo p; echo 1; echo; echo s; echo n; echo y; echo q) |
git commit --interactive -m foo &&
test_cache_tree
'
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-scrap-cache-tree &&
git reset --hard &&
test_cache_tree
'
test_expect_success 'reset --hard without index gives cache-tree' '
rm -f .git/index &&
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 &&
test_cache_tree
'
test_expect_success 'no phantom error when switching trees' '
mkdir newdir &&
>newdir/one &&
git add newdir/one &&
git checkout 2>errors &&
! test -s errors
'
test_expect_success 'switching trees does not invalidate shared index' '
git update-index --split-index &&
>split &&
git add split &&
test-dump-split-index .git/index | grep -v ^own >before &&
git commit -m "as-is" &&
test-dump-split-index .git/index | grep -v ^own >after &&
test_cmp before after
'
test_done