attr: read attributes from HEAD when bare repo

The motivation for 44451a2e5e (attr: teach "--attr-source=<tree>" global
option to "git" , 2023-05-06), was to make it possible to use
gitattributes with bare repositories.

To make it easier to read gitattributes in bare repositories however,
let's just make HEAD:.gitattributes the default. This is in line with
how mailmap works, 8c473cecfd (mailmap: default mailmap.blob in bare
repositories, 2012-12-13).

Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
John Cai 2023-10-13 17:39:29 +00:00 committed by Junio C Hamano
parent 43c8a30d15
commit 2386535511
3 changed files with 23 additions and 2 deletions

12
attr.c
View file

@ -1173,6 +1173,7 @@ static void collect_some_attrs(struct index_state *istate,
}
static const char *default_attr_source_tree_object_name;
static int ignore_bad_attr_tree;
void set_git_attr_source(const char *tree_object_name)
{
@ -1184,10 +1185,19 @@ static void compute_default_attr_source(struct object_id *attr_source)
if (!default_attr_source_tree_object_name)
default_attr_source_tree_object_name = getenv(GIT_ATTR_SOURCE_ENVIRONMENT);
if (!default_attr_source_tree_object_name &&
startup_info->have_repository &&
is_bare_repository()) {
default_attr_source_tree_object_name = "HEAD";
ignore_bad_attr_tree = 1;
}
if (!default_attr_source_tree_object_name || !is_null_oid(attr_source))
return;
if (repo_get_oid_treeish(the_repository, default_attr_source_tree_object_name, attr_source))
if (repo_get_oid_treeish(the_repository,
default_attr_source_tree_object_name,
attr_source) && !ignore_bad_attr_tree)
die(_("bad --attr-source or GIT_ATTR_SOURCE"));
}

View file

@ -342,6 +342,17 @@ test_expect_success 'bare repository: check that .gitattribute is ignored' '
)
'
test_expect_success 'bare repo defaults to reading .gitattributes from HEAD' '
test_when_finished rm -rf test bare_with_gitattribute &&
git init test &&
test_commit -C test gitattributes .gitattributes "f/path test=val" &&
git clone --bare test bare_with_gitattribute &&
echo "f/path: test: val" >expect &&
git -C bare_with_gitattribute check-attr test -- f/path >actual &&
test_cmp expect actual
'
test_expect_success 'bare repository: with --source' '
(
cd bare.git &&

View file

@ -138,7 +138,7 @@ test_expect_success 'git archive with worktree attributes, bare' '
'
test_expect_missing bare-worktree/ignored
test_expect_exists bare-worktree/ignored-by-tree
test_expect_missing bare-worktree/ignored-by-tree
test_expect_exists bare-worktree/ignored-by-worktree
test_expect_success 'export-subst' '