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https://github.com/git/git
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5305474ec4
Update 'cache_ref_iterator_advance' to skip over refs that are not matched by the given prefix. Currently, a ref entry is considered "matched" if the entry name is fully contained within the prefix: * prefix: "refs/heads/v1" * entry: "refs/heads/v1.0" OR if the prefix is fully contained in the entry name: * prefix: "refs/heads/v1.0" * entry: "refs/heads/v1" The first case is always correct, but the second is only correct if the ref cache entry is a directory, for example: * prefix: "refs/heads/example" * entry: "refs/heads/" Modify the logic in 'cache_ref_iterator_advance' to reflect these expectations: 1. If 'overlaps_prefix' returns 'PREFIX_EXCLUDES_DIR', then the prefix and ref cache entry do not overlap at all. Skip this entry. 2. If 'overlaps_prefix' returns 'PREFIX_WITHIN_DIR', then the prefix matches inside this entry if it is a directory. Skip if the entry is not a directory, otherwise iterate over it. 3. Otherwise, 'overlaps_prefix' returned 'PREFIX_CONTAINS_DIR', indicating that the cache entry (directory or not) is fully contained by or equal to the prefix. Iterate over this entry. Note that condition 2 relies on the names of directory entries having the appropriate trailing slash. The existing function documentation of 'create_dir_entry' explicitly calls out the trailing slash requirement, so this is a safe assumption to make. This bug generally doesn't have any user-facing impact, since it requires: 1. using a non-empty prefix without a trailing slash in an iteration like 'for_each_fullref_in', 2. the callback to said iteration not reapplying the original filter (as for-each-ref does) to ensure unmatched refs are skipped, and 3. the repository having one or more refs that match part of, but not all of, the prefix. However, there are some niche scenarios that meet those criteria (specifically, 'rev-parse --bisect' and '(log|show|shortlog) --bisect'). Add tests covering those cases to demonstrate the fix in this patch. Signed-off-by: Victoria Dye <vdye@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
291 lines
9 KiB
Bash
Executable file
291 lines
9 KiB
Bash
Executable file
#!/bin/sh
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test_description='test git rev-parse'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_one () {
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dir="$1" &&
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expect="$2" &&
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shift &&
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shift &&
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echo "$expect" >expect &&
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git -C "$dir" rev-parse "$@" >actual &&
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test_cmp expect actual
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}
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# usage: [options] label is-bare is-inside-git is-inside-work prefix git-dir absolute-git-dir
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test_rev_parse () {
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d=
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bare=
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gitdir=
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while :
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do
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case "$1" in
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-C) d="$2"; shift; shift ;;
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-b) case "$2" in
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[tfu]*) bare="$2"; shift; shift ;;
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*) error "test_rev_parse: bogus core.bare value '$2'" ;;
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esac ;;
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-g) gitdir="$2"; shift; shift ;;
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-*) error "test_rev_parse: unrecognized option '$1'" ;;
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*) break ;;
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esac
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done
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name=$1
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shift
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for o in --is-bare-repository \
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--is-inside-git-dir \
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--is-inside-work-tree \
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--show-prefix \
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--git-dir \
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--absolute-git-dir
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do
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test $# -eq 0 && break
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expect="$1"
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test_expect_success "$name: $o" '
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if test -n "$gitdir"
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then
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test_when_finished "unset GIT_DIR" &&
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GIT_DIR="$gitdir" &&
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export GIT_DIR
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fi &&
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case "$bare" in
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t*) test_config ${d:+-C} ${d:+"$d"} core.bare true ;;
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f*) test_config ${d:+-C} ${d:+"$d"} core.bare false ;;
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u*) test_unconfig ${d:+-C} ${d:+"$d"} core.bare ;;
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esac &&
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echo "$expect" >expect &&
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git ${d:+-C} ${d:+"$d"} rev-parse $o >actual &&
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test_cmp expect actual
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'
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shift
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done
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}
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ROOT=$(pwd)
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test_expect_success 'setup' '
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mkdir -p sub/dir work &&
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cp -R .git repo.git &&
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git checkout -B main &&
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test_commit abc &&
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git checkout -b side &&
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test_commit def &&
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git checkout main &&
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git worktree add worktree side
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'
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test_rev_parse toplevel false false true '' .git "$ROOT/.git"
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test_rev_parse -C .git .git/ false true false '' . "$ROOT/.git"
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test_rev_parse -C .git/objects .git/objects/ false true false '' "$ROOT/.git" "$ROOT/.git"
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test_rev_parse -C sub/dir subdirectory false false true sub/dir/ "$ROOT/.git" "$ROOT/.git"
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test_rev_parse -b t 'core.bare = true' true false false
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test_rev_parse -b u 'core.bare undefined' false false true
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test_rev_parse -C work -g ../.git -b f 'GIT_DIR=../.git, core.bare = false' false false true '' "../.git" "$ROOT/.git"
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test_rev_parse -C work -g ../.git -b t 'GIT_DIR=../.git, core.bare = true' true false false ''
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test_rev_parse -C work -g ../.git -b u 'GIT_DIR=../.git, core.bare undefined' false false true ''
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test_rev_parse -C work -g ../repo.git -b f 'GIT_DIR=../repo.git, core.bare = false' false false true '' "../repo.git" "$ROOT/repo.git"
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test_rev_parse -C work -g ../repo.git -b t 'GIT_DIR=../repo.git, core.bare = true' true false false ''
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test_rev_parse -C work -g ../repo.git -b u 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
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test_expect_success 'rev-parse --path-format=absolute' '
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test_one "." "$ROOT/.git" --path-format=absolute --git-dir &&
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test_one "." "$ROOT/.git" --path-format=absolute --git-common-dir &&
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test_one "sub/dir" "$ROOT/.git" --path-format=absolute --git-dir &&
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test_one "sub/dir" "$ROOT/.git" --path-format=absolute --git-common-dir &&
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test_one "worktree" "$ROOT/.git/worktrees/worktree" --path-format=absolute --git-dir &&
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test_one "worktree" "$ROOT/.git" --path-format=absolute --git-common-dir &&
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test_one "." "$ROOT" --path-format=absolute --show-toplevel &&
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test_one "." "$ROOT/.git/objects" --path-format=absolute --git-path objects &&
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test_one "." "$ROOT/.git/objects/foo/bar/baz" --path-format=absolute --git-path objects/foo/bar/baz
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'
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test_expect_success 'rev-parse --path-format=relative' '
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test_one "." ".git" --path-format=relative --git-dir &&
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test_one "." ".git" --path-format=relative --git-common-dir &&
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test_one "sub/dir" "../../.git" --path-format=relative --git-dir &&
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test_one "sub/dir" "../../.git" --path-format=relative --git-common-dir &&
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test_one "worktree" "../.git/worktrees/worktree" --path-format=relative --git-dir &&
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test_one "worktree" "../.git" --path-format=relative --git-common-dir &&
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test_one "." "./" --path-format=relative --show-toplevel &&
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test_one "." ".git/objects" --path-format=relative --git-path objects &&
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test_one "." ".git/objects/foo/bar/baz" --path-format=relative --git-path objects/foo/bar/baz
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'
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test_expect_success '--path-format=relative does not affect --absolute-git-dir' '
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git rev-parse --path-format=relative --absolute-git-dir >actual &&
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echo "$ROOT/.git" >expect &&
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test_cmp expect actual
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'
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test_expect_success '--path-format can change in the middle of the command line' '
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git rev-parse --path-format=absolute --git-dir --path-format=relative --git-path objects/foo/bar >actual &&
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cat >expect <<-EOF &&
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$ROOT/.git
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.git/objects/foo/bar
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EOF
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test_cmp expect actual
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'
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test_expect_success '--path-format does not segfault without an argument' '
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test_must_fail git rev-parse --path-format
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'
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test_expect_success 'git-common-dir from worktree root' '
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echo .git >expect &&
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git rev-parse --git-common-dir >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git-common-dir inside sub-dir' '
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mkdir -p path/to/child &&
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test_when_finished "rm -rf path" &&
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echo "$(git -C path/to/child rev-parse --show-cdup).git" >expect &&
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git -C path/to/child rev-parse --git-common-dir >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git-path from worktree root' '
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echo .git/objects >expect &&
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git rev-parse --git-path objects >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git-path inside sub-dir' '
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mkdir -p path/to/child &&
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test_when_finished "rm -rf path" &&
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echo "$(git -C path/to/child rev-parse --show-cdup).git/objects" >expect &&
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git -C path/to/child rev-parse --git-path objects >actual &&
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test_cmp expect actual
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'
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test_expect_success 'rev-parse --is-shallow-repository in shallow repo' '
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test_commit test_commit &&
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echo true >expect &&
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git clone --depth 1 --no-local . shallow &&
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test_when_finished "rm -rf shallow" &&
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git -C shallow rev-parse --is-shallow-repository >actual &&
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test_cmp expect actual
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'
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test_expect_success 'rev-parse --is-shallow-repository in non-shallow repo' '
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echo false >expect &&
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git rev-parse --is-shallow-repository >actual &&
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test_cmp expect actual
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'
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test_expect_success 'rev-parse --show-object-format in repo' '
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test_oid algo >expect &&
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git rev-parse --show-object-format >actual &&
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test_cmp expect actual &&
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git rev-parse --show-object-format=storage >actual &&
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test_cmp expect actual &&
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git rev-parse --show-object-format=input >actual &&
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test_cmp expect actual &&
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git rev-parse --show-object-format=output >actual &&
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test_cmp expect actual &&
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test_must_fail git rev-parse --show-object-format=squeamish-ossifrage 2>err &&
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grep "unknown mode for --show-object-format: squeamish-ossifrage" err
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'
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test_expect_success '--show-toplevel from subdir of working tree' '
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pwd >expect &&
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git -C sub/dir rev-parse --show-toplevel >actual &&
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test_cmp expect actual
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'
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test_expect_success '--show-toplevel from inside .git' '
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test_must_fail git -C .git rev-parse --show-toplevel
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'
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test_expect_success 'showing the superproject correctly' '
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git rev-parse --show-superproject-working-tree >out &&
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test_must_be_empty out &&
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test_create_repo super &&
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test_commit -C super test_commit &&
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test_create_repo sub &&
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test_commit -C sub test_commit &&
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git -c protocol.file.allow=always \
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-C super submodule add ../sub dir/sub &&
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echo $(pwd)/super >expect &&
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git -C super/dir/sub rev-parse --show-superproject-working-tree >out &&
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test_cmp expect out &&
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test_commit -C super submodule_add &&
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git -C super checkout -b branch1 &&
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git -C super/dir/sub checkout -b branch1 &&
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test_commit -C super/dir/sub branch1_commit &&
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git -C super add dir/sub &&
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test_commit -C super branch1_commit &&
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git -C super checkout -b branch2 main &&
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git -C super/dir/sub checkout -b branch2 main &&
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test_commit -C super/dir/sub branch2_commit &&
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git -C super add dir/sub &&
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test_commit -C super branch2_commit &&
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test_must_fail git -C super merge branch1 &&
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git -C super/dir/sub rev-parse --show-superproject-working-tree >out &&
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test_cmp expect out
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'
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# at least one external project depends on this behavior:
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test_expect_success 'rev-parse --since= unsqueezed ordering' '
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x1=--since=1970-01-01T00:00:01Z &&
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x2=--since=1970-01-01T00:00:02Z &&
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x3=--since=1970-01-01T00:00:03Z &&
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git rev-parse $x1 $x1 $x3 $x2 >actual &&
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cat >expect <<-EOF &&
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--max-age=1
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--max-age=1
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--max-age=3
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--max-age=2
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EOF
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test_cmp expect actual
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'
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test_expect_success 'rev-parse --bisect includes bad, excludes good' '
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test_commit_bulk 6 &&
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git update-ref refs/bisect/bad-1 HEAD~1 &&
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git update-ref refs/bisect/b HEAD~2 &&
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git update-ref refs/bisect/bad-3 HEAD~3 &&
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git update-ref refs/bisect/good-3 HEAD~3 &&
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git update-ref refs/bisect/bad-4 HEAD~4 &&
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git update-ref refs/bisect/go HEAD~4 &&
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# Note: refs/bisect/b and refs/bisect/go should be ignored because they
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# do not match the refs/bisect/bad or refs/bisect/good prefixes.
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cat >expect <<-EOF &&
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refs/bisect/bad-1
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refs/bisect/bad-3
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refs/bisect/bad-4
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^refs/bisect/good-3
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EOF
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git rev-parse --symbolic-full-name --bisect >actual &&
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test_cmp expect actual
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'
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test_done
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