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t0610-reftable-basics.sh
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#!/bin/sh
#
# Copyright (c) 2020 Google LLC
#
test_description='reftable basics'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
GIT_TEST_DEFAULT_REF_FORMAT=reftable
export GIT_TEST_DEFAULT_REF_FORMAT
. ./test-lib.sh
INVALID_OID=$(test_oid 001)
test_expect_success 'pack-refs does not crash with -h' '
test_expect_code 129 git pack-refs -h >usage &&
test_grep "[Uu]sage: git pack-refs " usage &&
test_expect_code 129 nongit git pack-refs -h >usage &&
test_grep "[Uu]sage: git pack-refs " usage
'
test_expect_success 'init: creates basic reftable structures' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_path_is_dir repo/.git/reftable &&
test_path_is_file repo/.git/reftable/tables.list &&
echo reftable >expect &&
git -C repo rev-parse --show-ref-format >actual &&
test_cmp expect actual
'
test_expect_success 'init: sha256 object format via environment variable' '
test_when_finished "rm -rf repo" &&
GIT_DEFAULT_HASH=sha256 git init repo &&
cat >expect <<-EOF &&
sha256
reftable
EOF
git -C repo rev-parse --show-object-format --show-ref-format >actual &&
test_cmp expect actual
'
test_expect_success 'init: sha256 object format via option' '
test_when_finished "rm -rf repo" &&
git init --object-format=sha256 repo &&
cat >expect <<-EOF &&
sha256
reftable
EOF
git -C repo rev-parse --show-object-format --show-ref-format >actual &&
test_cmp expect actual
'
test_expect_success 'init: reinitializing reftable backend succeeds' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
git -C repo for-each-ref >expect &&
git init --ref-format=reftable repo &&
git -C repo for-each-ref >actual &&
test_cmp expect actual
'
test_expect_success 'init: reinitializing files with reftable backend fails' '
test_when_finished "rm -rf repo" &&
git init --ref-format=files repo &&
test_commit -C repo file &&
cp repo/.git/HEAD expect &&
test_must_fail git init --ref-format=reftable repo &&
test_cmp expect repo/.git/HEAD
'
test_expect_success 'init: reinitializing reftable with files backend fails' '
test_when_finished "rm -rf repo" &&
git init --ref-format=reftable repo &&
test_commit -C repo file &&
cp repo/.git/HEAD expect &&
test_must_fail git init --ref-format=files repo &&
test_cmp expect repo/.git/HEAD
'
test_expect_perms () {
local perms="$1" &&
local file="$2" &&
local actual="$(ls -l "$file")" &&
case "$actual" in
$perms*)
: happy
;;
*)
echo "$(basename $2) is not $perms but $actual"
false
;;
esac
}
test_expect_reftable_perms () {
local umask="$1"
local shared="$2"
local expect="$3"
test_expect_success POSIXPERM "init: honors --shared=$shared with umask $umask" '
test_when_finished "rm -rf repo" &&
(
umask $umask &&
git init --shared=$shared repo
) &&
test_expect_perms "$expect" repo/.git/reftable/tables.list &&
for table in repo/.git/reftable/*.ref
do
test_expect_perms "$expect" "$table" ||
return 1
done
'
test_expect_success POSIXPERM "pack-refs: honors --shared=$shared with umask $umask" '
test_when_finished "rm -rf repo" &&
(
umask $umask &&
git init --shared=$shared repo &&
test_commit -C repo A &&
test_line_count = 2 repo/.git/reftable/tables.list &&
git -C repo pack-refs
) &&
test_expect_perms "$expect" repo/.git/reftable/tables.list &&
for table in repo/.git/reftable/*.ref
do
test_expect_perms "$expect" "$table" ||
return 1
done
'
}
test_expect_reftable_perms 002 umask "-rw-rw-r--"
test_expect_reftable_perms 022 umask "-rw-r--r--"
test_expect_reftable_perms 027 umask "-rw-r-----"
test_expect_reftable_perms 002 group "-rw-rw-r--"
test_expect_reftable_perms 022 group "-rw-rw-r--"
test_expect_reftable_perms 027 group "-rw-rw----"
test_expect_reftable_perms 002 world "-rw-rw-r--"
test_expect_reftable_perms 022 world "-rw-rw-r--"
test_expect_reftable_perms 027 world "-rw-rw-r--"
test_expect_success 'clone: can clone reftable repository' '
test_when_finished "rm -rf repo clone" &&
git init repo &&
test_commit -C repo message1 file1 &&
git clone repo cloned &&
echo reftable >expect &&
git -C cloned rev-parse --show-ref-format >actual &&
test_cmp expect actual &&
test_path_is_file cloned/file1
'
test_expect_success 'clone: can clone reffiles into reftable repository' '
test_when_finished "rm -rf reffiles reftable" &&
git init --ref-format=files reffiles &&
test_commit -C reffiles A &&
git clone --ref-format=reftable ./reffiles reftable &&
git -C reffiles rev-parse HEAD >expect &&
git -C reftable rev-parse HEAD >actual &&
test_cmp expect actual &&
git -C reftable rev-parse --show-ref-format >actual &&
echo reftable >expect &&
test_cmp expect actual &&
git -C reffiles rev-parse --show-ref-format >actual &&
echo files >expect &&
test_cmp expect actual
'
test_expect_success 'clone: can clone reftable into reffiles repository' '
test_when_finished "rm -rf reffiles reftable" &&
git init --ref-format=reftable reftable &&
test_commit -C reftable A &&
git clone --ref-format=files ./reftable reffiles &&
git -C reftable rev-parse HEAD >expect &&
git -C reffiles rev-parse HEAD >actual &&
test_cmp expect actual &&
git -C reftable rev-parse --show-ref-format >actual &&
echo reftable >expect &&
test_cmp expect actual &&
git -C reffiles rev-parse --show-ref-format >actual &&
echo files >expect &&
test_cmp expect actual
'
test_expect_success 'ref transaction: corrupted tables cause failure' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file1 &&
for f in .git/reftable/*.ref
do
: >"$f" || return 1
done &&
test_must_fail git update-ref refs/heads/main HEAD
)
'
test_expect_success 'ref transaction: corrupted tables.list cause failure' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file1 &&
echo garbage >.git/reftable/tables.list &&
test_must_fail git update-ref refs/heads/main HEAD
)
'
test_expect_success 'ref transaction: refuses to write ref causing F/D conflict' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo file &&
test_must_fail git -C repo update-ref refs/heads/main/forbidden
'
test_expect_success 'ref transaction: deleting ref with invalid name fails' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo file &&
test_must_fail git -C repo update-ref -d ../../my-private-file
'
test_expect_success 'ref transaction: can skip object ID verification' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_must_fail test-tool -C repo ref-store main update-ref msg refs/heads/branch $INVALID_OID $ZERO_OID 0 &&
test-tool -C repo ref-store main update-ref msg refs/heads/branch $INVALID_OID $ZERO_OID REF_SKIP_OID_VERIFICATION
'
test_expect_success 'ref transaction: updating same ref multiple times fails' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
cat >updates <<-EOF &&
update refs/heads/main $A
update refs/heads/main $A
EOF
cat >expect <<-EOF &&
fatal: multiple updates for ref ${SQ}refs/heads/main${SQ} not allowed
EOF
test_must_fail git -C repo update-ref --stdin <updates 2>err &&
test_cmp expect err
'
test_expect_success 'ref transaction: can delete symbolic self-reference with git-symbolic-ref(1)' '
test_when_finished "rm -rf repo" &&
git init repo &&
git -C repo symbolic-ref refs/heads/self refs/heads/self &&
git -C repo symbolic-ref -d refs/heads/self
'
test_expect_success 'ref transaction: deleting symbolic self-reference without --no-deref fails' '
test_when_finished "rm -rf repo" &&
git init repo &&
git -C repo symbolic-ref refs/heads/self refs/heads/self &&
cat >expect <<-EOF &&
error: multiple updates for ${SQ}refs/heads/self${SQ} (including one via symref ${SQ}refs/heads/self${SQ}) are not allowed
EOF
test_must_fail git -C repo update-ref -d refs/heads/self 2>err &&
test_cmp expect err
'
test_expect_success 'ref transaction: deleting symbolic self-reference with --no-deref succeeds' '
test_when_finished "rm -rf repo" &&
git init repo &&
git -C repo symbolic-ref refs/heads/self refs/heads/self &&
git -C repo update-ref -d --no-deref refs/heads/self
'
test_expect_success 'ref transaction: creating symbolic ref fails with F/D conflict' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
cat >expect <<-EOF &&
error: ${SQ}refs/heads/main${SQ} exists; cannot create ${SQ}refs/heads${SQ}
EOF
test_must_fail git -C repo symbolic-ref refs/heads refs/heads/foo 2>err &&
test_cmp expect err
'
test_expect_success 'ref transaction: ref deletion' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file &&
HEAD_OID=$(git show-ref -s --verify HEAD) &&
cat >expect <<-EOF &&
$HEAD_OID refs/heads/main
$HEAD_OID refs/tags/file
EOF
git show-ref >actual &&
test_cmp expect actual &&
test_must_fail git update-ref -d refs/tags/file $INVALID_OID &&
git show-ref >actual &&
test_cmp expect actual &&
git update-ref -d refs/tags/file $HEAD_OID &&
echo "$HEAD_OID refs/heads/main" >expect &&
git show-ref >actual &&
test_cmp expect actual
)
'
test_expect_success 'ref transaction: writes cause auto-compaction' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_line_count = 1 repo/.git/reftable/tables.list &&
test_commit -C repo --no-tag A &&
test_line_count = 1 repo/.git/reftable/tables.list &&
test_commit -C repo --no-tag B &&
test_line_count = 1 repo/.git/reftable/tables.list
'
test_expect_success 'ref transaction: env var disables compaction' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
start=$(wc -l <repo/.git/reftable/tables.list) &&
iterations=5 &&
expected=$((start + iterations)) &&
for i in $(test_seq $iterations)
do
GIT_TEST_REFTABLE_AUTOCOMPACTION=false \
git -C repo update-ref branch-$i HEAD || return 1
done &&
test_line_count = $expected repo/.git/reftable/tables.list &&
git -C repo update-ref foo HEAD &&
test_line_count -lt $expected repo/.git/reftable/tables.list
'
test_expect_success 'ref transaction: alternating table sizes are compacted' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
for i in $(test_seq 5)
do
git -C repo branch -f foo &&
git -C repo branch -d foo || return 1
done &&
test_line_count = 2 repo/.git/reftable/tables.list
'
check_fsync_events () {
local trace="$1" &&
shift &&
cat >expect &&
sed -n \
-e '/^{"event":"counter",.*"category":"fsync",/ {
s/.*"category":"fsync",//;
s/}$//;
p;
}' \
<"$trace" >actual &&
test_cmp expect actual
}
test_expect_success 'ref transaction: writes are synced' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo initial &&
GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
GIT_TEST_FSYNC=true \
git -C repo -c core.fsync=reference \
-c core.fsyncMethod=fsync update-ref refs/heads/branch HEAD &&
check_fsync_events trace2.txt <<-EOF
"name":"hardware-flush","count":4
EOF
'
test_expect_success 'ref transaction: empty transaction in empty repo' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo --no-tag A &&
git -C repo update-ref -d refs/heads/main &&
test-tool -C repo ref-store main delete-refs REF_NO_DEREF msg HEAD &&
git -C repo update-ref --stdin <<-EOF
prepare
commit
EOF
'
test_expect_success 'ref transaction: fails gracefully when auto compaction fails' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
for i in $(test_seq 10)
do
git branch branch-$i &&
for table in .git/reftable/*.ref
do
touch "$table.lock" || exit 1
done ||
exit 1
done &&
test_line_count = 10 .git/reftable/tables.list
)
'
test_expect_success 'ref transaction: timeout acquiring tables.list lock' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit initial &&
>.git/reftable/tables.list.lock &&
test_must_fail git update-ref refs/heads/branch HEAD 2>err &&
test_grep "cannot lock references" err
)
'
test_expect_success 'ref transaction: retry acquiring tables.list lock' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit initial &&
LOCK=.git/reftable/tables.list.lock &&
>$LOCK &&
{
( sleep 1 && rm -f $LOCK ) &
} &&
git -c reftable.lockTimeout=5000 update-ref refs/heads/branch HEAD
)
'
# This test fails most of the time on Cygwin systems. The root cause is
# that Windows does not allow us to rename the "tables.list.lock" file into
# place when "tables.list" is open for reading by a concurrent process. We have
# worked around that in our MinGW-based rename emulation, but the Cygwin
# emulation seems to be insufficient.
test_expect_success !CYGWIN 'ref transaction: many concurrent writers' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
# Set a high timeout. While a couple of seconds should be
# plenty, using the address sanitizer will significantly slow
# us down here. So we are aiming way higher than you would ever
# think is necessary just to keep us from flaking. We could
# also lock indefinitely by passing -1, but that could
# potentially block CI jobs indefinitely if there was a bug
# here.
git config set reftable.lockTimeout 300000 &&
test_commit --no-tag initial &&
head=$(git rev-parse HEAD) &&
for i in $(test_seq 100)
do
printf "%s commit\trefs/heads/branch-%s\n" "$head" "$i" ||
return 1
done >expect &&
printf "%s commit\trefs/heads/main\n" "$head" >>expect &&
for i in $(test_seq 100)
do
{ git update-ref refs/heads/branch-$i HEAD& } ||
return 1
done &&
wait &&
git for-each-ref --sort=v:refname >actual &&
test_cmp expect actual
)
'
test_expect_success 'pack-refs: compacts tables' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
ls -1 repo/.git/reftable >table-files &&
test_line_count = 3 table-files &&
test_line_count = 2 repo/.git/reftable/tables.list &&
git -C repo pack-refs &&
ls -1 repo/.git/reftable >table-files &&
test_line_count = 2 table-files &&
test_line_count = 1 repo/.git/reftable/tables.list
'
test_expect_success 'pack-refs: compaction raises locking errors' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
touch repo/.git/reftable/tables.list.lock &&
cat >expect <<-EOF &&
error: unable to compact stack: data is locked
EOF
test_must_fail git -C repo pack-refs 2>err &&
test_cmp expect err
'
for command in pack-refs gc "maintenance run --task=pack-refs"
do
test_expect_success "$command: auto compaction" '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
# We need a bit of setup to ensure that git-gc(1) actually
# triggers, and that it does not write anything to the refdb.
git config gc.auto 1 &&
git config gc.autoDetach 0 &&
git config gc.reflogExpire never &&
git config gc.reflogExpireUnreachable never &&
test_oid blob17_1 | git hash-object -w --stdin &&
# The tables should have been auto-compacted, and thus auto
# compaction should not have to do anything.
ls -1 .git/reftable >tables-expect &&
test_line_count = 3 tables-expect &&
git $command --auto &&
ls -1 .git/reftable >tables-actual &&
test_cmp tables-expect tables-actual &&
test_oid blob17_2 | git hash-object -w --stdin &&
# Lock all tables, write some refs. Auto-compaction will be
# unable to compact tables and thus fails gracefully,
# compacting only those tables which are not locked.
ls .git/reftable/*.ref | sort |
while read table
do
touch "$table.lock" &&
basename "$table" >>tables.expect || exit 1
done &&
test_line_count = 2 .git/reftable/tables.list &&
git branch B &&
git branch C &&
# The new tables are auto-compacted, but the locked tables are
# left intact.
test_line_count = 3 .git/reftable/tables.list &&
head -n 2 .git/reftable/tables.list >tables.head &&
test_cmp tables.expect tables.head &&
rm .git/reftable/*.lock &&
git $command --auto &&
test_line_count = 1 .git/reftable/tables.list
)
'
done
test_expect_success 'pack-refs: prunes stale tables' '
test_when_finished "rm -rf repo" &&
git init repo &&
touch repo/.git/reftable/stale-table.ref &&
git -C repo pack-refs &&
test_path_is_missing repo/.git/reftable/stable-ref.ref
'
test_expect_success 'pack-refs: does not prune non-table files' '
test_when_finished "rm -rf repo" &&
git init repo &&
touch repo/.git/reftable/garbage &&
git -C repo pack-refs &&
test_path_is_file repo/.git/reftable/garbage
'
test_expect_success 'packed-refs: writes are synced' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo initial &&
test_line_count = 2 table-files &&
: >trace2.txt &&
GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
GIT_TEST_FSYNC=true \
git -C repo -c core.fsync=reference \
-c core.fsyncMethod=fsync pack-refs &&
check_fsync_events trace2.txt <<-EOF
"name":"hardware-flush","count":2
EOF
'
test_expect_success 'ref iterator: bogus names are flagged' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit --no-tag file &&
test-tool ref-store main update-ref msg "refs/heads/bogus..name" $(git rev-parse HEAD) $ZERO_OID REF_SKIP_REFNAME_VERIFICATION &&
cat >expect <<-EOF &&
$ZERO_OID refs/heads/bogus..name 0xc
$(git rev-parse HEAD) refs/heads/main 0x0
EOF
test-tool ref-store main for-each-ref "" >actual &&
test_cmp expect actual
)
'
test_expect_success 'ref iterator: missing object IDs are not flagged' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test-tool ref-store main update-ref msg "refs/heads/broken-hash" $INVALID_OID $ZERO_OID REF_SKIP_OID_VERIFICATION &&
cat >expect <<-EOF &&
$INVALID_OID refs/heads/broken-hash 0x0
EOF
test-tool ref-store main for-each-ref "" >actual &&
test_cmp expect actual
)
'
test_expect_success 'basic: commit and list refs' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo file &&
test_write_lines refs/heads/main refs/tags/file >expect &&
git -C repo for-each-ref --format="%(refname)" >actual &&
test_cmp actual expect
'
test_expect_success 'basic: can write large commit message' '
test_when_finished "rm -rf repo" &&
git init repo &&
perl -e "
print \"this is a long commit message\" x 50000
" >commit-msg &&
git -C repo commit --allow-empty --file=../commit-msg
'
test_expect_success 'basic: show-ref fails with empty repository' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_must_fail git -C repo show-ref >actual &&
test_must_be_empty actual
'
test_expect_success 'basic: can check out unborn branch' '
test_when_finished "rm -rf repo" &&
git init repo &&
git -C repo checkout -b main
'
test_expect_success 'basic: peeled tags are stored' '
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo file &&
git -C repo tag -m "annotated tag" test_tag HEAD &&
for ref in refs/heads/main refs/tags/file refs/tags/test_tag refs/tags/test_tag^{}
do
echo "$(git -C repo rev-parse "$ref") $ref" || return 1
done >expect &&
git -C repo show-ref -d >actual &&
test_cmp expect actual
'
test_expect_success 'basic: for-each-ref can print symrefs' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file &&
git branch &&
git symbolic-ref refs/heads/sym refs/heads/main &&
cat >expected <<-EOF &&
refs/heads/main
EOF
git for-each-ref --format="%(symref)" refs/heads/sym >actual &&
test_cmp expected actual
)
'
test_expect_success 'basic: notes' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
write_script fake_editor <<-\EOF &&
echo "$MSG" >"$1"
echo "$MSG" >&2
EOF
test_commit 1st &&
test_commit 2nd &&
GIT_EDITOR=./fake_editor MSG=b4 git notes add &&
GIT_EDITOR=./fake_editor MSG=b3 git notes edit &&
echo b4 >expect &&
git notes --ref commits@{1} show >actual &&
test_cmp expect actual
)
'
test_expect_success 'basic: stash' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file &&
git stash list >expect &&
test_line_count = 0 expect &&
echo hoi >>file.t &&
git stash push -m stashed &&
git stash list >expect &&
test_line_count = 1 expect &&
git stash clear &&
git stash list >expect &&
test_line_count = 0 expect
)
'
test_expect_success 'basic: cherry-pick' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit message1 file1 &&
test_commit message2 file2 &&
git branch source &&
git checkout HEAD^ &&
test_commit message3 file3 &&
git cherry-pick source &&
test_path_is_file file2
)
'
test_expect_success 'basic: rebase' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit message1 file1 &&
test_commit message2 file2 &&
git branch source &&
git checkout HEAD^ &&
test_commit message3 file3 &&
git rebase source &&
test_path_is_file file2
)
'
test_expect_success 'reflog: can delete separate reflog entries' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file &&
test_commit file2 &&
test_commit file3 &&
test_commit file4 &&
git reflog >actual &&
grep file3 actual &&
git reflog delete HEAD@{1} &&
git reflog >actual &&
! grep file3 actual
)
'
test_expect_success 'reflog: can switch to previous branch' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file1 &&
git checkout -b branch1 &&
test_commit file2 &&
git checkout -b branch2 &&
git switch - &&
git rev-parse --symbolic-full-name HEAD >actual &&
echo refs/heads/branch1 >expect &&
test_cmp actual expect
)
'
test_expect_success 'reflog: copying branch writes reflog entry' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit file1 &&
test_commit file2 &&
oid=$(git rev-parse --short HEAD) &&
git branch src &&
cat >expect <<-EOF &&
${oid} dst@{0}: Branch: copied refs/heads/src to refs/heads/dst
${oid} dst@{1}: branch: Created from main
EOF
git branch -c src dst &&
git reflog dst >actual &&
test_cmp expect actual
)
'
test_expect_success 'reflog: renaming branch writes reflog entry' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
git symbolic-ref HEAD refs/heads/before &&
test_commit file &&
git show-ref >expected.refs &&
sed s/before/after/g <expected.refs >expected &&
git branch -M after &&
git show-ref >actual &&
test_cmp expected actual &&
echo refs/heads/after >expected &&
git symbolic-ref HEAD >actual &&
test_cmp expected actual
)
'
test_expect_success 'reflog: can store empty logs' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_must_fail test-tool ref-store main reflog-exists refs/heads/branch &&
test-tool ref-store main create-reflog refs/heads/branch &&
test-tool ref-store main reflog-exists refs/heads/branch &&
test-tool ref-store main for-each-reflog-ent-reverse refs/heads/branch >actual &&
test_must_be_empty actual
)
'
test_expect_success 'reflog: expiry empties reflog' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit initial &&
git checkout -b branch &&
test_commit fileA &&
test_commit fileB &&
cat >expect <<-EOF &&
commit: fileB
commit: fileA
branch: Created from HEAD
EOF
git reflog show --format="%gs" refs/heads/branch >actual &&
test_cmp expect actual &&
git reflog expire branch --expire=all &&
git reflog show --format="%gs" refs/heads/branch >actual &&
test_must_be_empty actual &&
test-tool ref-store main reflog-exists refs/heads/branch
)
'
test_expect_success 'reflog: can be deleted' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit initial &&
test-tool ref-store main reflog-exists refs/heads/main &&
test-tool ref-store main delete-reflog refs/heads/main &&
test_must_fail test-tool ref-store main reflog-exists refs/heads/main
)
'
test_expect_success 'reflog: garbage collection deletes reflog entries' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
for count in $(test_seq 1 10)
do
test_commit "number $count" file.t $count number-$count ||
return 1
done &&
git reflog refs/heads/main >actual &&
test_line_count = 10 actual &&
grep "commit (initial): number 1" actual &&
grep "commit: number 10" actual &&
git gc &&
git reflog refs/heads/main >actual &&
test_line_count = 0 actual
)
'
test_expect_success 'reflog: updates via HEAD update HEAD reflog' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit main-one &&
git checkout -b new-branch &&
test_commit new-one &&
test_commit new-two &&
echo new-one >expect &&
git log -1 --format=%s HEAD@{1} >actual &&
test_cmp expect actual
)
'
test_expect_success 'branch: copying branch with D/F conflict' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
git branch branch &&
cat >expect <<-EOF &&
error: ${SQ}refs/heads/branch${SQ} exists; cannot create ${SQ}refs/heads/branch/moved${SQ}
fatal: branch copy failed
EOF
test_must_fail git branch -c branch branch/moved 2>err &&
test_cmp expect err
)
'
test_expect_success 'branch: moving branch with D/F conflict' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
git branch branch &&
git branch conflict &&
cat >expect <<-EOF &&
error: ${SQ}refs/heads/conflict${SQ} exists; cannot create ${SQ}refs/heads/conflict/moved${SQ}
fatal: branch rename failed
EOF
test_must_fail git branch -m branch conflict/moved 2>err &&
test_cmp expect err
)
'
test_expect_success 'worktree: adding worktree creates separate stack' '
test_when_finished "rm -rf repo worktree" &&
git init repo &&
test_commit -C repo A &&
git -C repo worktree add ../worktree &&
test_path_is_file repo/.git/worktrees/worktree/refs/heads &&
echo "ref: refs/heads/.invalid" >expect &&
test_cmp expect repo/.git/worktrees/worktree/HEAD &&
test_path_is_dir repo/.git/worktrees/worktree/reftable &&
test_path_is_file repo/.git/worktrees/worktree/reftable/tables.list
'
test_expect_success 'worktree: pack-refs in main repo packs main refs' '
test_when_finished "rm -rf repo worktree" &&
git init repo &&
test_commit -C repo A &&
GIT_TEST_REFTABLE_AUTOCOMPACTION=false \
git -C repo worktree add ../worktree &&
GIT_TEST_REFTABLE_AUTOCOMPACTION=false \
git -C worktree update-ref refs/worktree/per-worktree HEAD &&
test_line_count = 4 repo/.git/worktrees/worktree/reftable/tables.list &&
test_line_count = 3 repo/.git/reftable/tables.list &&
git -C repo pack-refs &&
test_line_count = 4 repo/.git/worktrees/worktree/reftable/tables.list &&
test_line_count = 1 repo/.git/reftable/tables.list
'
test_expect_success 'worktree: pack-refs in worktree packs worktree refs' '
test_when_finished "rm -rf repo worktree" &&
git init repo &&