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attr: add attr.tree for setting the treeish to read attributes from

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44451a2 (attr: teach "--attr-source=<tree>" global option to "git",
2023-05-06) provided the ability to pass in a treeish as the attr
source. In the context of serving Git repositories as bare repos like we
do at GitLab however, it would be easier to point --attr-source to HEAD
for all commands by setting it once.

Add a new config attr.tree that allows this.

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 17:39:30 +00:00
committed by Junio C Hamano
parent 2386535511
commit 9f9c40cf34
6 changed files with 95 additions and 0 deletions
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7
attr.c
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@ -24,6 +24,8 @@
#include "tree-walk.h"
#include "object-name.h"
const char *git_attr_tree;
const char git_attr__true[] = "(builtin)true";
const char git_attr__false[] = "\0(builtin)false";
static const char git_attr__unknown[] = "(builtin)unknown";
@ -1185,6 +1187,11 @@ 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 && git_attr_tree) {
default_attr_source_tree_object_name = git_attr_tree;
ignore_bad_attr_tree = 1;
}
if (!default_attr_source_tree_object_name &&
startup_info->have_repository &&
is_bare_repository()) {