[GSOC PATCH v2 2/2] attr: use `repo_settings_get_attributesfile_path()` and update callers

[Ayush Chandekar <ayu.chandekar@gmail.com>]

Update attribute-related functions to retrieve the "core.attributesfile"
configuration via the new repository-scoped accessor
`repo_settings_get_attributesfile_path()`. This improves behaviour in
multi-repository contexts and aligns with the goal of minimizing
reliance on global state.

Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
---
 attr.c               | 28 ++++++++++------------------
 attr.h               |  7 +++----
 builtin/check-attr.c |  2 +-
 builtin/var.c        |  2 +-
 4 files changed, 15 insertions(+), 24 deletions(-)

diff --git a/attr.c b/attr.c
index 0bd2750528..8f28463e8c 100644
--- a/attr.c
+++ b/attr.c
@@ -879,14 +879,6 @@ const char *git_attr_system_file(void)
 	return system_wide;
 }
 
-const char *git_attr_global_file(void)
-{
-	if (!git_attributes_file)
-		git_attributes_file = xdg_config_home("attributes");
-
-	return git_attributes_file;
-}
-
 int git_attr_system_is_enabled(void)
 {
 	return !git_env_bool("GIT_ATTR_NOSYSTEM", 0);
@@ -906,7 +898,7 @@ static void push_stack(struct attr_stack **attr_stack_p,
 	}
 }
 
-static void bootstrap_attr_stack(struct index_state *istate,
+static void bootstrap_attr_stack(struct repository *repo, struct index_state *istate,
 				 const struct object_id *tree_oid,
 				 struct attr_stack **stack)
 {
@@ -927,8 +919,8 @@ static void bootstrap_attr_stack(struct index_state *istate,
 	}
 
 	/* home directory */
-	if (git_attr_global_file()) {
-		e = read_attr_from_file(git_attr_global_file(), flags);
+	if (repo_settings_get_attributesfile_path(repo)) {
+		e = read_attr_from_file(repo_settings_get_attributesfile_path(repo), flags);
 		push_stack(stack, e, NULL, 0);
 	}
 
@@ -946,7 +938,7 @@ static void bootstrap_attr_stack(struct index_state *istate,
 	push_stack(stack, e, NULL, 0);
 }
 
-static void prepare_attr_stack(struct index_state *istate,
+static void prepare_attr_stack(struct repository *repo, struct index_state *istate,
 			       const struct object_id *tree_oid,
 			       const char *path, int dirlen,
 			       struct attr_stack **stack)
@@ -969,7 +961,7 @@ static void prepare_attr_stack(struct index_state *istate,
 	 * .gitattributes in deeper directories to shallower ones,
 	 * and finally use the built-in set as the default.
 	 */
-	bootstrap_attr_stack(istate, tree_oid, stack);
+	bootstrap_attr_stack(repo, istate, tree_oid, stack);
 
 	/*
 	 * Pop the "info" one that is always at the top of the stack.
@@ -1143,7 +1135,7 @@ static void determine_macros(struct all_attrs_item *all_attrs,
  * If check->check_nr is non-zero, only attributes in check[] are collected.
  * Otherwise all attributes are collected.
  */
-static void collect_some_attrs(struct index_state *istate,
+static void collect_some_attrs(struct repository *repo, struct index_state *istate,
 			       const struct object_id *tree_oid,
 			       const char *path, struct attr_check *check)
 {
@@ -1164,7 +1156,7 @@ static void collect_some_attrs(struct index_state *istate,
 		dirlen = 0;
 	}
 
-	prepare_attr_stack(istate, tree_oid, path, dirlen, &check->stack);
+	prepare_attr_stack(repo, istate, tree_oid, path, dirlen, &check->stack);
 	all_attrs_init(&g_attr_hashmap, check);
 	determine_macros(check->all_attrs, check->stack);
 
@@ -1310,7 +1302,7 @@ void git_check_attr(struct index_state *istate,
 	int i;
 	const struct object_id *tree_oid = default_attr_source();
 
-	collect_some_attrs(istate, tree_oid, path, check);
+	collect_some_attrs(the_repository, istate, tree_oid, path, check);
 
 	for (i = 0; i < check->nr; i++) {
 		unsigned int n = check->items[i].attr->attr_nr;
@@ -1321,14 +1313,14 @@ void git_check_attr(struct index_state *istate,
 	}
 }
 
-void git_all_attrs(struct index_state *istate,
+void git_all_attrs(struct repository *repo, struct index_state *istate,
 		   const char *path, struct attr_check *check)
 {
 	int i;
 	const struct object_id *tree_oid = default_attr_source();
 
 	attr_check_reset(check);
-	collect_some_attrs(istate, tree_oid, path, check);
+	collect_some_attrs(repo, istate, tree_oid, path, check);
 
 	for (i = 0; i < check->all_attrs_nr; i++) {
 		const char *name = check->all_attrs[i].attr->name;
diff --git a/attr.h b/attr.h
index a04a521092..1ff058bef7 100644
--- a/attr.h
+++ b/attr.h
@@ -213,11 +213,13 @@ void git_check_attr(struct index_state *istate,
 		    const char *path,
 		    struct attr_check *check);
 
+struct repository;
+
 /*
  * Retrieve all attributes that apply to the specified path.
  * check holds the attributes and their values.
  */
-void git_all_attrs(struct index_state *istate,
+void git_all_attrs(struct repository *repo, struct index_state *istate,
 		   const char *path, struct attr_check *check);
 
 enum git_attr_direction {
@@ -232,9 +234,6 @@ void attr_start(void);
 /* Return the system gitattributes file. */
 const char *git_attr_system_file(void);
 
-/* Return the global gitattributes file, if any. */
-const char *git_attr_global_file(void);
-
 /* Return whether the system gitattributes file is enabled and should be used. */
 int git_attr_system_is_enabled(void);
 
diff --git a/builtin/check-attr.c b/builtin/check-attr.c
index 7cf275b893..1b8a89dfb2 100644
--- a/builtin/check-attr.c
+++ b/builtin/check-attr.c
@@ -70,7 +70,7 @@ static void check_attr(const char *prefix, struct attr_check *check,
 		prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
 
 	if (collect_all) {
-		git_all_attrs(the_repository->index, full_path, check);
+		git_all_attrs(the_repository, the_repository->index, full_path, check);
 	} else {
 		git_check_attr(the_repository->index, full_path, check);
 	}
diff --git a/builtin/var.c b/builtin/var.c
index ada642a9fe..8fbf5430a4 100644
--- a/builtin/var.c
+++ b/builtin/var.c
@@ -71,7 +71,7 @@ static char *git_attr_val_system(int ident_flag UNUSED)
 
 static char *git_attr_val_global(int ident_flag UNUSED)
 {
-	char *file = xstrdup_or_null(git_attr_global_file());
+	char *file = xstrdup_or_null(repo_settings_get_attributesfile_path(the_repository));
 	if (file) {
 		normalize_path_copy(file, file);
 		return file;
-- 
2.48.GIT