911e9e88ab
The files backend uses file system locking on individual refs, which means a
directory/file conflict can prevent locks being taken. For example, in a repo
with just the ref "foo", an update
(DELETE "foo") + (ADD "foo/bar")
cannot be executed in the files backend, as one cannot take a lock on foo/bar.
The current reftable proof-of-concept integration supports these tranactions, as
the result is a repo with just "foo/bar", which has no directory/file conflict.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
636 lines
20 KiB
Bash
Executable File
636 lines
20 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description='Test git update-ref error handling'
|
|
. ./test-lib.sh
|
|
|
|
# Create some references, perhaps run pack-refs --all, then try to
|
|
# create some more references. Ensure that the second creation fails
|
|
# with the correct error message.
|
|
# Usage: test_update_rejected <before> <pack> <create> <error>
|
|
# <before> is a ws-separated list of refs to create before the test
|
|
# <pack> (true or false) tells whether to pack the refs before the test
|
|
# <create> is a list of variables to attempt creating
|
|
# <error> is a string to look for in the stderr of update-ref.
|
|
# All references are created in the namespace specified by the current
|
|
# value of $prefix.
|
|
test_update_rejected () {
|
|
before="$1" &&
|
|
pack="$2" &&
|
|
create="$3" &&
|
|
error="$4" &&
|
|
printf "create $prefix/%s $C\n" $before |
|
|
git update-ref --stdin &&
|
|
git for-each-ref $prefix >unchanged &&
|
|
if $pack
|
|
then
|
|
git pack-refs --all
|
|
fi &&
|
|
printf "create $prefix/%s $C\n" $create >input &&
|
|
test_must_fail git update-ref --stdin <input 2>output.err &&
|
|
test_i18ngrep -F "$error" output.err &&
|
|
git for-each-ref $prefix >actual &&
|
|
test_cmp unchanged actual
|
|
}
|
|
|
|
# Test adding and deleting D/F-conflicting references in a single
|
|
# transaction.
|
|
df_test() {
|
|
prefix="$1"
|
|
pack=: symadd=false symdel=false add_del=false addref= delref=
|
|
shift
|
|
while test $# -gt 0
|
|
do
|
|
case "$1" in
|
|
--pack)
|
|
pack="git pack-refs --all"
|
|
shift
|
|
;;
|
|
--sym-add)
|
|
# Perform the add via a symbolic reference
|
|
symadd=true
|
|
shift
|
|
;;
|
|
--sym-del)
|
|
# Perform the del via a symbolic reference
|
|
symdel=true
|
|
shift
|
|
;;
|
|
--del-add)
|
|
# Delete first reference then add second
|
|
add_del=false
|
|
delref="$prefix/r/$2"
|
|
addref="$prefix/r/$3"
|
|
shift 3
|
|
;;
|
|
--add-del)
|
|
# Add first reference then delete second
|
|
add_del=true
|
|
addref="$prefix/r/$2"
|
|
delref="$prefix/r/$3"
|
|
shift 3
|
|
;;
|
|
*)
|
|
echo 1>&2 "Extra args to df_test: $*"
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
git update-ref "$delref" $C &&
|
|
if $symadd
|
|
then
|
|
addname="$prefix/s/symadd" &&
|
|
git symbolic-ref "$addname" "$addref"
|
|
else
|
|
addname="$addref"
|
|
fi &&
|
|
if $symdel
|
|
then
|
|
delname="$prefix/s/symdel" &&
|
|
git symbolic-ref "$delname" "$delref"
|
|
else
|
|
delname="$delref"
|
|
fi &&
|
|
cat >expected-err <<-EOF &&
|
|
fatal: cannot lock ref $SQ$addname$SQ: $SQ$delref$SQ exists; cannot create $SQ$addref$SQ
|
|
EOF
|
|
$pack &&
|
|
if $add_del
|
|
then
|
|
printf "%s\n" "create $addname $D" "delete $delname"
|
|
else
|
|
printf "%s\n" "delete $delname" "create $addname $D"
|
|
fi >commands &&
|
|
test_must_fail git update-ref --stdin <commands 2>output.err &&
|
|
test_cmp expected-err output.err &&
|
|
printf "%s\n" "$C $delref" >expected-refs &&
|
|
git for-each-ref --format="%(objectname) %(refname)" $prefix/r >actual-refs &&
|
|
test_cmp expected-refs actual-refs
|
|
}
|
|
|
|
test_expect_success 'setup' '
|
|
|
|
git commit --allow-empty -m Initial &&
|
|
C=$(git rev-parse HEAD) &&
|
|
git commit --allow-empty -m Second &&
|
|
D=$(git rev-parse HEAD) &&
|
|
git commit --allow-empty -m Third &&
|
|
E=$(git rev-parse HEAD)
|
|
'
|
|
|
|
test_expect_success 'existing loose ref is a simple prefix of new' '
|
|
|
|
prefix=refs/1l &&
|
|
test_update_rejected "a c e" false "b c/x d" \
|
|
"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'existing packed ref is a simple prefix of new' '
|
|
|
|
prefix=refs/1p &&
|
|
test_update_rejected "a c e" true "b c/x d" \
|
|
"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'existing loose ref is a deeper prefix of new' '
|
|
|
|
prefix=refs/2l &&
|
|
test_update_rejected "a c e" false "b c/x/y d" \
|
|
"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'existing packed ref is a deeper prefix of new' '
|
|
|
|
prefix=refs/2p &&
|
|
test_update_rejected "a c e" true "b c/x/y d" \
|
|
"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'new ref is a simple prefix of existing loose' '
|
|
|
|
prefix=refs/3l &&
|
|
test_update_rejected "a c/x e" false "b c d" \
|
|
"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'new ref is a simple prefix of existing packed' '
|
|
|
|
prefix=refs/3p &&
|
|
test_update_rejected "a c/x e" true "b c d" \
|
|
"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'new ref is a deeper prefix of existing loose' '
|
|
|
|
prefix=refs/4l &&
|
|
test_update_rejected "a c/x/y e" false "b c d" \
|
|
"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'new ref is a deeper prefix of existing packed' '
|
|
|
|
prefix=refs/4p &&
|
|
test_update_rejected "a c/x/y e" true "b c d" \
|
|
"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
|
|
|
|
'
|
|
|
|
test_expect_success 'one new ref is a simple prefix of another' '
|
|
|
|
prefix=refs/5 &&
|
|
test_update_rejected "a e" false "b c c/x d" \
|
|
"cannot process $SQ$prefix/c$SQ and $SQ$prefix/c/x$SQ at the same time"
|
|
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool rev-parse' '
|
|
prefix=refs/e-rev-parse &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
echo "$C" >expected &&
|
|
git rev-parse $prefix/foo >actual &&
|
|
test_cmp expected actual
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool for-each-ref' '
|
|
prefix=refs/e-for-each-ref &&
|
|
git update-ref $prefix/foo $C &&
|
|
git for-each-ref $prefix >expected &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
git for-each-ref $prefix >actual &&
|
|
test_cmp expected actual
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool create' '
|
|
prefix=refs/e-create &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "create %s $C\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool verify' '
|
|
prefix=refs/e-verify &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "verify %s $C\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool 1-arg update' '
|
|
prefix=refs/e-update-1 &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "update %s $D\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool 2-arg update' '
|
|
prefix=refs/e-update-2 &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "update %s $D $C\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool 0-arg delete' '
|
|
prefix=refs/e-delete-0 &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "delete %s\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'empty directory should not fool 1-arg delete' '
|
|
prefix=refs/e-delete-1 &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
mkdir -p .git/$prefix/foo/bar/baz &&
|
|
printf "delete %s $C\n" $prefix/foo |
|
|
git update-ref --stdin
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents add long + delete short' '
|
|
df_test refs/df-al-ds --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents add short + delete long' '
|
|
df_test refs/df-as-dl --add-del foo foo/bar
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents delete long + add short' '
|
|
df_test refs/df-dl-as --del-add foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents delete short + add long' '
|
|
df_test refs/df-ds-al --del-add foo foo/bar
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents add long + delete short packed' '
|
|
df_test refs/df-al-dsp --pack --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents add short + delete long packed' '
|
|
df_test refs/df-as-dlp --pack --add-del foo foo/bar
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents delete long packed + add short' '
|
|
df_test refs/df-dlp-as --pack --del-add foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents delete short packed + add long' '
|
|
df_test refs/df-dsp-al --pack --del-add foo foo/bar
|
|
'
|
|
|
|
# Try some combinations involving symbolic refs...
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect add long + delete short' '
|
|
df_test refs/df-ial-ds --sym-add --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect add long + indirect delete short' '
|
|
df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect add short + indirect delete long' '
|
|
df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect delete long + indirect add short' '
|
|
df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect add long + delete short packed' '
|
|
df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect add long + indirect delete short packed' '
|
|
df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents add long + indirect delete short packed' '
|
|
df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'D/F conflict prevents indirect delete long packed + indirect add short' '
|
|
df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo
|
|
'
|
|
|
|
# Test various errors when reading the old values of references...
|
|
|
|
test_expect_success 'missing old value blocks update' '
|
|
prefix=refs/missing-update &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks update' '
|
|
prefix=refs/incorrect-update &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'existing old value blocks create' '
|
|
prefix=refs/existing-create &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: reference already exists
|
|
EOF
|
|
printf "%s\n" "create $prefix/foo $E" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks delete' '
|
|
prefix=refs/incorrect-delete &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "delete $prefix/foo $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'missing old value blocks indirect update' '
|
|
prefix=refs/missing-indirect-update &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks indirect update' '
|
|
prefix=refs/incorrect-indirect-update &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'existing old value blocks indirect create' '
|
|
prefix=refs/existing-indirect-create &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
|
|
EOF
|
|
printf "%s\n" "create $prefix/symref $E" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks indirect delete' '
|
|
prefix=refs/incorrect-indirect-delete &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "delete $prefix/symref $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'missing old value blocks indirect no-deref update' '
|
|
prefix=refs/missing-noderef-update &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: reference is missing but expected $D
|
|
EOF
|
|
printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks indirect no-deref update' '
|
|
prefix=refs/incorrect-noderef-update &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'existing old value blocks indirect no-deref create' '
|
|
prefix=refs/existing-noderef-create &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
|
|
EOF
|
|
printf "%s\n" "option no-deref" "create $prefix/symref $E" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success 'incorrect old value blocks indirect no-deref delete' '
|
|
prefix=refs/incorrect-noderef-delete &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
git update-ref $prefix/foo $C &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
|
|
EOF
|
|
printf "%s\n" "option no-deref" "delete $prefix/symref $D" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success REFFILES 'non-empty directory blocks create' '
|
|
prefix=refs/ne-create &&
|
|
mkdir -p .git/$prefix/foo/bar &&
|
|
: >.git/$prefix/foo/bar/baz.lock &&
|
|
test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $D $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success REFFILES 'broken reference blocks create' '
|
|
prefix=refs/broken-create &&
|
|
mkdir -p .git/$prefix &&
|
|
echo "gobbledigook" >.git/$prefix/foo &&
|
|
test_when_finished "rm -f .git/$prefix/foo" &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
|
|
EOF
|
|
printf "%s\n" "update $prefix/foo $D $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success REFFILES 'non-empty directory blocks indirect create' '
|
|
prefix=refs/ne-indirect-create &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
mkdir -p .git/$prefix/foo/bar &&
|
|
: >.git/$prefix/foo/bar/baz.lock &&
|
|
test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $D $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success REFFILES 'broken reference blocks indirect create' '
|
|
prefix=refs/broken-indirect-create &&
|
|
git symbolic-ref $prefix/symref $prefix/foo &&
|
|
echo "gobbledigook" >.git/$prefix/foo &&
|
|
test_when_finished "rm -f .git/$prefix/foo" &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err &&
|
|
cat >expected <<-EOF &&
|
|
fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
|
|
EOF
|
|
printf "%s\n" "update $prefix/symref $D $C" |
|
|
test_must_fail git update-ref --stdin 2>output.err &&
|
|
test_cmp expected output.err
|
|
'
|
|
|
|
test_expect_success REFFILES 'no bogus intermediate values during delete' '
|
|
prefix=refs/slow-transaction &&
|
|
# Set up a reference with differing loose and packed versions:
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
git update-ref $prefix/foo $D &&
|
|
git for-each-ref $prefix >unchanged &&
|
|
# Now try to update the reference, but hold the `packed-refs` lock
|
|
# for a while to see what happens while the process is blocked:
|
|
: >.git/packed-refs.lock &&
|
|
test_when_finished "rm -f .git/packed-refs.lock" &&
|
|
{
|
|
# Note: the following command is intentionally run in the
|
|
# background. We increase the timeout so that `update-ref`
|
|
# attempts to acquire the `packed-refs` lock for much longer
|
|
# than it takes for us to do the check then delete it:
|
|
git -c core.packedrefstimeout=30000 update-ref -d $prefix/foo &
|
|
} &&
|
|
pid2=$! &&
|
|
# Give update-ref plenty of time to get to the point where it tries
|
|
# to lock packed-refs:
|
|
sleep 1 &&
|
|
# Make sure that update-ref did not complete despite the lock:
|
|
kill -0 $pid2 &&
|
|
# Verify that the reference still has its old value:
|
|
sha1=$(git rev-parse --verify --quiet $prefix/foo || echo undefined) &&
|
|
case "$sha1" in
|
|
$D)
|
|
# This is what we hope for; it means that nothing
|
|
# user-visible has changed yet.
|
|
: ;;
|
|
undefined)
|
|
# This is not correct; it means the deletion has happened
|
|
# already even though update-ref should not have been
|
|
# able to acquire the lock yet.
|
|
echo "$prefix/foo deleted prematurely" &&
|
|
break
|
|
;;
|
|
$C)
|
|
# This value should never be seen. Probably the loose
|
|
# reference has been deleted but the packed reference
|
|
# is still there:
|
|
echo "$prefix/foo incorrectly observed to be C" &&
|
|
break
|
|
;;
|
|
*)
|
|
# WTF?
|
|
echo "unexpected value observed for $prefix/foo: $sha1" &&
|
|
break
|
|
;;
|
|
esac >out &&
|
|
rm -f .git/packed-refs.lock &&
|
|
wait $pid2 &&
|
|
test_must_be_empty out &&
|
|
test_must_fail git rev-parse --verify --quiet $prefix/foo
|
|
'
|
|
|
|
test_expect_success REFFILES 'delete fails cleanly if packed-refs file is locked' '
|
|
prefix=refs/locked-packed-refs &&
|
|
# Set up a reference with differing loose and packed versions:
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
git update-ref $prefix/foo $D &&
|
|
git for-each-ref $prefix >unchanged &&
|
|
# Now try to delete it while the `packed-refs` lock is held:
|
|
: >.git/packed-refs.lock &&
|
|
test_when_finished "rm -f .git/packed-refs.lock" &&
|
|
test_must_fail git update-ref -d $prefix/foo >out 2>err &&
|
|
git for-each-ref $prefix >actual &&
|
|
test_i18ngrep "Unable to create $SQ.*packed-refs.lock$SQ: " err &&
|
|
test_cmp unchanged actual
|
|
'
|
|
|
|
test_expect_success REFFILES 'delete fails cleanly if packed-refs.new write fails' '
|
|
# Setup and expectations are similar to the test above.
|
|
prefix=refs/failed-packed-refs &&
|
|
git update-ref $prefix/foo $C &&
|
|
git pack-refs --all &&
|
|
git update-ref $prefix/foo $D &&
|
|
git for-each-ref $prefix >unchanged &&
|
|
# This should not happen in practice, but it is an easy way to get a
|
|
# reliable error (we open with create_tempfile(), which uses O_EXCL).
|
|
: >.git/packed-refs.new &&
|
|
test_when_finished "rm -f .git/packed-refs.new" &&
|
|
test_must_fail git update-ref -d $prefix/foo &&
|
|
git for-each-ref $prefix >actual &&
|
|
test_cmp unchanged actual
|
|
'
|
|
|
|
test_done
|