git/t/t6022-rev-list-missing.sh

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#!/bin/sh
test_description='handling of missing objects in rev-list'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
# We setup the repository with two commits, this way HEAD is always
# available and we can hide commit 1.
test_expect_success 'create repository and alternate directory' '
test_commit 1 &&
test_commit 2 &&
test_commit 3 &&
git tag -m "tag message" annot_tag HEAD~1 &&
git tag regul_tag HEAD~1 &&
git branch a_branch HEAD~1
'
# We manually corrupt the repository, which means that the commit-graph may
# contain references to already-deleted objects. We thus need to enable
# commit-graph paranoia to not returned these deleted commits from the graph.
GIT_COMMIT_GRAPH_PARANOIA=true
export GIT_COMMIT_GRAPH_PARANOIA
for obj in "HEAD~1" "HEAD~1^{tree}" "HEAD:1.t"
do
test_expect_success "rev-list --missing=error fails with missing object $obj" '
oid="$(git rev-parse $obj)" &&
path=".git/objects/$(test_oid_to_path $oid)" &&
mv "$path" "$path.hidden" &&
test_when_finished "mv $path.hidden $path" &&
test_must_fail git rev-list --missing=error --objects \
--no-object-names HEAD
'
done
for obj in "HEAD~1" "HEAD~1^{tree}" "HEAD:1.t"
do
for action in "allow-any" "print"
do
test_expect_success "rev-list --missing=$action with missing $obj" '
oid="$(git rev-parse $obj)" &&
path=".git/objects/$(test_oid_to_path $oid)" &&
# Before the object is made missing, we use rev-list to
# get the expected oids.
git rev-list --objects --no-object-names \
HEAD ^$obj >expect.raw &&
# Blobs are shared by all commits, so even though a commit/tree
# might be skipped, its blob must be accounted for.
if test $obj != "HEAD:1.t"
then
echo $(git rev-parse HEAD:1.t) >>expect.raw &&
echo $(git rev-parse HEAD:2.t) >>expect.raw
fi &&
mv "$path" "$path.hidden" &&
test_when_finished "mv $path.hidden $path" &&
git rev-list --missing=$action --objects --no-object-names \
HEAD >actual.raw &&
# When the action is to print, we should also add the missing
# oid to the expect list.
case $action in
allow-any)
;;
print)
grep ?$oid actual.raw &&
echo ?$oid >>expect.raw
;;
esac &&
sort actual.raw >actual &&
sort expect.raw >expect &&
test_cmp expect actual
'
done
done
for missing_tip in "annot_tag" "regul_tag" "a_branch" "HEAD~1" "HEAD~1^{tree}" "HEAD:1.t"
do
# We want to check that things work when both
# - all the tips passed are missing (case existing_tip = ""), and
# - there is one missing tip and one existing tip (case existing_tip = "HEAD")
for existing_tip in "" "HEAD"
do
for action in "allow-any" "print"
do
test_expect_success "--missing=$action with tip '$missing_tip' missing and tip '$existing_tip'" '
# Before the object is made missing, we use rev-list to
# get the expected oids.
if test "$existing_tip" = "HEAD"
then
git rev-list --objects --no-object-names \
HEAD ^$missing_tip >expect.raw
else
>expect.raw
fi &&
# Blobs are shared by all commits, so even though a commit/tree
# might be skipped, its blob must be accounted for.
if test "$existing_tip" = "HEAD" && test $missing_tip != "HEAD:1.t"
then
echo $(git rev-parse HEAD:1.t) >>expect.raw &&
echo $(git rev-parse HEAD:2.t) >>expect.raw
fi &&
missing_oid="$(git rev-parse $missing_tip)" &&
if test "$missing_tip" = "annot_tag"
then
oid="$(git rev-parse $missing_tip^{commit})" &&
echo "$missing_oid" >>expect.raw
else
oid="$missing_oid"
fi &&
path=".git/objects/$(test_oid_to_path $oid)" &&
mv "$path" "$path.hidden" &&
test_when_finished "mv $path.hidden $path" &&
git rev-list --missing=$action --objects --no-object-names \
$missing_oid $existing_tip >actual.raw &&
# When the action is to print, we should also add the missing
# oid to the expect list.
case $action in
allow-any)
;;
print)
grep ?$oid actual.raw &&
echo ?$oid >>expect.raw
;;
esac &&
sort actual.raw >actual &&
sort expect.raw >expect &&
test_cmp expect actual
'
done
done
done
test_done