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merge(third_party/git): Merge squashed git subtree at v2.23.0

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Merge commit '1b593e1ea4' as 'third_party/git'
This commit is contained in:
Vincent Ambo 2020-01-11 23:36:56 +00:00
commit 7ef0d62730
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118
third_party/git/t/t1409-avoid-packing-refs.sh vendored Executable file
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#!/bin/sh
test_description='avoid rewriting packed-refs unnecessarily'
. ./test-lib.sh
# Add an identifying mark to the packed-refs file header line. This
# shouldn't upset readers, and it should be omitted if the file is
# ever rewritten.
mark_packed_refs () {
sed -e "s/^\(#.*\)/\1 t1409 /" <.git/packed-refs >.git/packed-refs.new &&
mv .git/packed-refs.new .git/packed-refs
}
# Verify that the packed-refs file is still marked.
check_packed_refs_marked () {
grep -q '^#.* t1409 ' .git/packed-refs
}
test_expect_success 'setup' '
git commit --allow-empty -m "Commit A" &&
A=$(git rev-parse HEAD) &&
git commit --allow-empty -m "Commit B" &&
B=$(git rev-parse HEAD) &&
git commit --allow-empty -m "Commit C" &&
C=$(git rev-parse HEAD)
'
test_expect_success 'do not create packed-refs file gratuitously' '
test_must_fail test -f .git/packed-refs &&
git update-ref refs/heads/foo $A &&
test_must_fail test -f .git/packed-refs &&
git update-ref refs/heads/foo $B &&
test_must_fail test -f .git/packed-refs &&
git update-ref refs/heads/foo $C $B &&
test_must_fail test -f .git/packed-refs &&
git update-ref -d refs/heads/foo &&
test_must_fail test -f .git/packed-refs
'
test_expect_success 'check that marking the packed-refs file works' '
git for-each-ref >expected &&
git pack-refs --all &&
mark_packed_refs &&
check_packed_refs_marked &&
git for-each-ref >actual &&
test_cmp expected actual &&
git pack-refs --all &&
test_must_fail check_packed_refs_marked &&
git for-each-ref >actual2 &&
test_cmp expected actual2
'
test_expect_success 'leave packed-refs untouched on update of packed' '
git update-ref refs/heads/packed-update $A &&
git pack-refs --all &&
mark_packed_refs &&
git update-ref refs/heads/packed-update $B &&
check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on checked update of packed' '
git update-ref refs/heads/packed-checked-update $A &&
git pack-refs --all &&
mark_packed_refs &&
git update-ref refs/heads/packed-checked-update $B $A &&
check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on verify of packed' '
git update-ref refs/heads/packed-verify $A &&
git pack-refs --all &&
mark_packed_refs &&
echo "verify refs/heads/packed-verify $A" | git update-ref --stdin &&
check_packed_refs_marked
'
test_expect_success 'touch packed-refs on delete of packed' '
git update-ref refs/heads/packed-delete $A &&
git pack-refs --all &&
mark_packed_refs &&
git update-ref -d refs/heads/packed-delete &&
test_must_fail check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on update of loose' '
git pack-refs --all &&
git update-ref refs/heads/loose-update $A &&
mark_packed_refs &&
git update-ref refs/heads/loose-update $B &&
check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on checked update of loose' '
git pack-refs --all &&
git update-ref refs/heads/loose-checked-update $A &&
mark_packed_refs &&
git update-ref refs/heads/loose-checked-update $B $A &&
check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on verify of loose' '
git pack-refs --all &&
git update-ref refs/heads/loose-verify $A &&
mark_packed_refs &&
echo "verify refs/heads/loose-verify $A" | git update-ref --stdin &&
check_packed_refs_marked
'
test_expect_success 'leave packed-refs untouched on delete of loose' '
git pack-refs --all &&
git update-ref refs/heads/loose-delete $A &&
mark_packed_refs &&
git update-ref -d refs/heads/loose-delete &&
check_packed_refs_marked
'
test_done