refs: drop git_reference_remote_tracking_from_branch()

include/git2/refs.h

@@ -363,27 +363,6 @@ GIT_EXTERN(int) git_reference_foreach_glob(
  */
 GIT_EXTERN(int) git_reference_has_log(git_reference *ref);
 
-
-/**
- * Return the reference supporting the remote tracking branch,
- * given a reference branch.
- *
- * The input reference has to be located in the `refs/heads`
- * namespace.
- *
- * @param tracking_ref Pointer where to store the retrieved
- * reference.
- *
- * @param branch_ref A git local branch reference. 
- *
- * @return 0 on success; GIT_ENOTFOUND when no remote tracking
- * reference exists, otherwise an error code.
- */
-GIT_EXTERN(int) git_reference_remote_tracking_from_branch(
-	git_reference **tracking_ref,
-	git_reference *branch_ref
-);
-
 /**
  * Check if a reference is a local branch.
  *

src/refs.c

@@ -11,7 +11,6 @@
 #include "fileops.h"
 #include "pack.h"
 #include "reflog.h"
-#include "config.h"
 
 #include <git2/tag.h>
 #include <git2/object.h>
@@ -1816,79 +1815,6 @@ int git_reference_has_log(
 	return result;
 }
 
-//TODO: How about also taking care of local tracking branches?
-//cf. http://alblue.bandlem.com/2011/07/git-tip-of-week-tracking-branches.html
-int git_reference_remote_tracking_from_branch(
-	git_reference **tracking_ref,
-	git_reference *branch_ref)
-{
-	git_config *config = NULL;
-	const char *name, *remote, *merge;
-	git_buf buf = GIT_BUF_INIT;
-	int error = -1;
-
-	assert(tracking_ref && branch_ref);
-
-	name = git_reference_name(branch_ref);
-
-	if (git__prefixcmp(name, GIT_REFS_HEADS_DIR)) {
-		giterr_set(
-			GITERR_INVALID,
-			"Failed to retrieve tracking reference - '%s' is not a branch.",
-			name);
-		return -1;
-	}
-
-	if (git_repository_config(&config, branch_ref->owner) < 0)
-		return -1;
-
-	if (git_buf_printf(
-		&buf,
-		"branch.%s.remote",
-		name + strlen(GIT_REFS_HEADS_DIR)) < 0)
-			goto cleanup;
-
-	if ((error = git_config_get_string(&remote, config, git_buf_cstr(&buf))) < 0)
-		goto cleanup;
-
-	error = -1;
-
-	git_buf_clear(&buf);
-
-	//TODO: Is it ok to fail when no merge target is found?
-	if (git_buf_printf(
-		&buf,
-		"branch.%s.merge",
-		name + strlen(GIT_REFS_HEADS_DIR)) < 0)
-			goto cleanup;
-
-	if (git_config_get_string(&merge, config, git_buf_cstr(&buf)) < 0)
-		goto cleanup;
-
-	//TODO: Should we test this?
-	if (git__prefixcmp(merge, GIT_REFS_HEADS_DIR))
-		goto cleanup;
-
-	git_buf_clear(&buf);
-
-	if (git_buf_printf(
-		&buf,
-		"refs/remotes/%s/%s",
-		remote,
-		merge + strlen(GIT_REFS_HEADS_DIR)) < 0)
-			goto cleanup;
-
-	error = git_reference_lookup(
-		tracking_ref,
-		branch_ref->owner,
-		git_buf_cstr(&buf));
-
-cleanup:
-	git_config_free(config);
-	git_buf_free(&buf);
-	return error;
-}
-
 int git_reference_is_branch(git_reference *ref)
 {
 	assert(ref);

tests-clar/refs/remotetracking.c

-#include "clar_libgit2.h"
-
-static git_repository *g_repo;
-
-void test_refs_remotetracking__initialize(void)
-{
-	cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
-}
-
-void test_refs_remotetracking__cleanup(void)
-{
-	git_repository_free(g_repo);
-}
-
-void test_refs_remotetracking__unfound_returns_GIT_ENOTFOUND(void)
-{
-	git_reference *branch, *tracking;
-
-	cl_git_pass(git_reference_lookup(&branch, g_repo, "refs/heads/subtrees"));
-
-	cl_assert_equal_i(GIT_ENOTFOUND, git_reference_remote_tracking_from_branch(&tracking, branch));
-
-	git_reference_free(branch);
-}
-
-void test_refs_remotetracking__retrieving_from_a_non_head_fails(void)
-{
-	git_reference *branch, *tracking;
-
-	cl_git_pass(git_reference_lookup(&branch, g_repo, "refs/tags/e90810b"));
-
-	cl_git_fail(git_reference_remote_tracking_from_branch(&tracking, branch));
-
-	git_reference_free(branch);
-}
-
-void test_refs_remotetracking__can_retrieve_a_remote_tracking_branch_reference(void)
-{
-	git_reference *branch, *tracking;
-
-	cl_git_pass(git_reference_lookup(&branch, g_repo, "refs/heads/master"));
-
-	cl_git_pass(git_reference_remote_tracking_from_branch(&tracking, branch));
-
-	cl_assert_equal_s("refs/remotes/test/master", git_reference_name(tracking));
-
-	git_reference_free(branch);
-	git_reference_free(tracking);
-}