git/t/t1500-rev-parse.sh
Patrick Steinhardt 07658e9ce5 builtin/rev-parse: allow shortening to more than 40 hex characters
The `--short=` option for git-rev-parse(1) allows the user to specify
to how many characters object IDs should be shortened to. The option is
broken though for SHA256 repositories because we set the maximum allowed
hash size to `the_hash_algo->hexsz` before we have even set up the repo.
Consequently, `the_hash_algo` will always be SHA1 and thus we truncate
every hash after at most 40 characters.

Fix this by accessing `the_hash_algo` only after we have set up the
repo.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 22:50:49 -07:00

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#!/bin/sh
test_description='test git rev-parse'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_one () {
dir="$1" &&
expect="$2" &&
shift &&
shift &&
echo "$expect" >expect &&
git -C "$dir" rev-parse "$@" >actual &&
test_cmp expect actual
}
# usage: [options] label is-bare is-inside-git is-inside-work prefix git-dir absolute-git-dir
test_rev_parse () {
d=
bare=
gitdir=
while :
do
case "$1" in
-C) d="$2"; shift; shift ;;
-b) case "$2" in
[tfu]*) bare="$2"; shift; shift ;;
*) error "test_rev_parse: bogus core.bare value '$2'" ;;
esac ;;
-g) gitdir="$2"; shift; shift ;;
-*) error "test_rev_parse: unrecognized option '$1'" ;;
*) break ;;
esac
done
name=$1
shift
for o in --is-bare-repository \
--is-inside-git-dir \
--is-inside-work-tree \
--show-prefix \
--git-dir \
--absolute-git-dir
do
test $# -eq 0 && break
expect="$1"
test_expect_success "$name: $o" '
if test -n "$gitdir"
then
test_when_finished "unset GIT_DIR" &&
GIT_DIR="$gitdir" &&
export GIT_DIR
fi &&
case "$bare" in
t*) test_config ${d:+-C} ${d:+"$d"} core.bare true ;;
f*) test_config ${d:+-C} ${d:+"$d"} core.bare false ;;
u*) test_unconfig ${d:+-C} ${d:+"$d"} core.bare ;;
esac &&
echo "$expect" >expect &&
git ${d:+-C} ${d:+"$d"} rev-parse $o >actual &&
test_cmp expect actual
'
shift
done
}
ROOT=$(pwd)
test_expect_success 'setup' '
mkdir -p sub/dir work &&
cp -R .git repo.git &&
git checkout -B main &&
test_commit abc &&
git checkout -b side &&
test_commit def &&
git checkout main &&
git worktree add worktree side
'
test_rev_parse toplevel false false true '' .git "$ROOT/.git"
test_rev_parse -C .git .git/ false true false '' . "$ROOT/.git"
test_rev_parse -C .git/objects .git/objects/ false true false '' "$ROOT/.git" "$ROOT/.git"
test_rev_parse -C sub/dir subdirectory false false true sub/dir/ "$ROOT/.git" "$ROOT/.git"
test_rev_parse -b t 'core.bare = true' true false false
test_rev_parse -b u 'core.bare undefined' false false true
test_rev_parse -C work -g ../.git -b f 'GIT_DIR=../.git, core.bare = false' false false true '' "../.git" "$ROOT/.git"
test_rev_parse -C work -g ../.git -b t 'GIT_DIR=../.git, core.bare = true' true false false ''
test_rev_parse -C work -g ../.git -b u 'GIT_DIR=../.git, core.bare undefined' false false true ''
test_rev_parse -C work -g ../repo.git -b f 'GIT_DIR=../repo.git, core.bare = false' false false true '' "../repo.git" "$ROOT/repo.git"
test_rev_parse -C work -g ../repo.git -b t 'GIT_DIR=../repo.git, core.bare = true' true false false ''
test_rev_parse -C work -g ../repo.git -b u 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
test_expect_success 'rev-parse --path-format=absolute' '
test_one "." "$ROOT/.git" --path-format=absolute --git-dir &&
test_one "." "$ROOT/.git" --path-format=absolute --git-common-dir &&
test_one "sub/dir" "$ROOT/.git" --path-format=absolute --git-dir &&
test_one "sub/dir" "$ROOT/.git" --path-format=absolute --git-common-dir &&
test_one "worktree" "$ROOT/.git/worktrees/worktree" --path-format=absolute --git-dir &&
test_one "worktree" "$ROOT/.git" --path-format=absolute --git-common-dir &&
test_one "." "$ROOT" --path-format=absolute --show-toplevel &&
test_one "." "$ROOT/.git/objects" --path-format=absolute --git-path objects &&
test_one "." "$ROOT/.git/objects/foo/bar/baz" --path-format=absolute --git-path objects/foo/bar/baz
'
test_expect_success 'rev-parse --path-format=relative' '
test_one "." ".git" --path-format=relative --git-dir &&
test_one "." ".git" --path-format=relative --git-common-dir &&
test_one "sub/dir" "../../.git" --path-format=relative --git-dir &&
test_one "sub/dir" "../../.git" --path-format=relative --git-common-dir &&
test_one "worktree" "../.git/worktrees/worktree" --path-format=relative --git-dir &&
test_one "worktree" "../.git" --path-format=relative --git-common-dir &&
test_one "." "./" --path-format=relative --show-toplevel &&
test_one "." ".git/objects" --path-format=relative --git-path objects &&
test_one "." ".git/objects/foo/bar/baz" --path-format=relative --git-path objects/foo/bar/baz
'
test_expect_success '--path-format=relative does not affect --absolute-git-dir' '
git rev-parse --path-format=relative --absolute-git-dir >actual &&
echo "$ROOT/.git" >expect &&
test_cmp expect actual
'
test_expect_success '--path-format can change in the middle of the command line' '
git rev-parse --path-format=absolute --git-dir --path-format=relative --git-path objects/foo/bar >actual &&
cat >expect <<-EOF &&
$ROOT/.git
.git/objects/foo/bar
EOF
test_cmp expect actual
'
test_expect_success '--path-format does not segfault without an argument' '
test_must_fail git rev-parse --path-format
'
test_expect_success 'git-common-dir from worktree root' '
echo .git >expect &&
git rev-parse --git-common-dir >actual &&
test_cmp expect actual
'
test_expect_success 'git-common-dir inside sub-dir' '
mkdir -p path/to/child &&
test_when_finished "rm -rf path" &&
echo "$(git -C path/to/child rev-parse --show-cdup).git" >expect &&
git -C path/to/child rev-parse --git-common-dir >actual &&
test_cmp expect actual
'
test_expect_success 'git-path from worktree root' '
echo .git/objects >expect &&
git rev-parse --git-path objects >actual &&
test_cmp expect actual
'
test_expect_success 'git-path inside sub-dir' '
mkdir -p path/to/child &&
test_when_finished "rm -rf path" &&
echo "$(git -C path/to/child rev-parse --show-cdup).git/objects" >expect &&
git -C path/to/child rev-parse --git-path objects >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --is-shallow-repository in shallow repo' '
test_commit test_commit &&
echo true >expect &&
git clone --depth 1 --no-local . shallow &&
test_when_finished "rm -rf shallow" &&
git -C shallow rev-parse --is-shallow-repository >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --is-shallow-repository in non-shallow repo' '
echo false >expect &&
git rev-parse --is-shallow-repository >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --show-object-format in repo' '
test_oid algo >expect &&
git rev-parse --show-object-format >actual &&
test_cmp expect actual &&
git rev-parse --show-object-format=storage >actual &&
test_cmp expect actual &&
git rev-parse --show-object-format=input >actual &&
test_cmp expect actual &&
git rev-parse --show-object-format=output >actual &&
test_cmp expect actual &&
test_must_fail git rev-parse --show-object-format=squeamish-ossifrage 2>err &&
grep "unknown mode for --show-object-format: squeamish-ossifrage" err
'
test_expect_success 'rev-parse --show-ref-format' '
test_detect_ref_format >expect &&
git rev-parse --show-ref-format >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --show-ref-format with invalid storage' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
git config extensions.refstorage broken &&
test_must_fail git rev-parse --show-ref-format 2>err &&
grep "error: invalid value for ${SQ}extensions.refstorage${SQ}: ${SQ}broken${SQ}" err
)
'
test_expect_success '--show-toplevel from subdir of working tree' '
pwd >expect &&
git -C sub/dir rev-parse --show-toplevel >actual &&
test_cmp expect actual
'
test_expect_success '--show-toplevel from inside .git' '
test_must_fail git -C .git rev-parse --show-toplevel
'
test_expect_success 'showing the superproject correctly' '
git rev-parse --show-superproject-working-tree >out &&
test_must_be_empty out &&
test_create_repo super &&
test_commit -C super test_commit &&
test_create_repo sub &&
test_commit -C sub test_commit &&
git -c protocol.file.allow=always \
-C super submodule add ../sub dir/sub &&
echo $(pwd)/super >expect &&
git -C super/dir/sub rev-parse --show-superproject-working-tree >out &&
test_cmp expect out &&
test_commit -C super submodule_add &&
git -C super checkout -b branch1 &&
git -C super/dir/sub checkout -b branch1 &&
test_commit -C super/dir/sub branch1_commit &&
git -C super add dir/sub &&
test_commit -C super branch1_commit &&
git -C super checkout -b branch2 main &&
git -C super/dir/sub checkout -b branch2 main &&
test_commit -C super/dir/sub branch2_commit &&
git -C super add dir/sub &&
test_commit -C super branch2_commit &&
test_must_fail git -C super merge branch1 &&
git -C super/dir/sub rev-parse --show-superproject-working-tree >out &&
test_cmp expect out
'
# at least one external project depends on this behavior:
test_expect_success 'rev-parse --since= unsqueezed ordering' '
x1=--since=1970-01-01T00:00:01Z &&
x2=--since=1970-01-01T00:00:02Z &&
x3=--since=1970-01-01T00:00:03Z &&
git rev-parse $x1 $x1 $x3 $x2 >actual &&
cat >expect <<-EOF &&
--max-age=1
--max-age=1
--max-age=3
--max-age=2
EOF
test_cmp expect actual
'
test_expect_success 'rev-parse --bisect includes bad, excludes good' '
test_commit_bulk 6 &&
git update-ref refs/bisect/bad-1 HEAD~1 &&
git update-ref refs/bisect/b HEAD~2 &&
git update-ref refs/bisect/bad-3 HEAD~3 &&
git update-ref refs/bisect/good-3 HEAD~3 &&
git update-ref refs/bisect/bad-4 HEAD~4 &&
git update-ref refs/bisect/go HEAD~4 &&
# Note: refs/bisect/b and refs/bisect/go should be ignored because they
# do not match the refs/bisect/bad or refs/bisect/good prefixes.
cat >expect <<-EOF &&
refs/bisect/bad-1
refs/bisect/bad-3
refs/bisect/bad-4
^refs/bisect/good-3
EOF
git rev-parse --symbolic-full-name --bisect >actual &&
test_cmp expect actual
'
test_expect_success '--short= truncates to the actual hash length' '
git rev-parse HEAD >expect &&
git rev-parse --short=100 HEAD >actual &&
test_cmp expect actual
'
test_done