Merge branch 'jc/fix-ref-sorting-parse'

Things like "git -c branch.sort=bogus branch new HEAD", i.e. the
operation modes of the "git branch" command that do not need the
sort key information, no longer errors out by seeing a bogus sort
key.

* jc/fix-ref-sorting-parse:
  for-each-ref: delay parsing of --sort=<atom> options

4 files changed, 24 insertions, 23 deletions

diff --git a/builtin/branch.c b/builtin/branch.c
index 7a1d1eeb07..81b5c111cb 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -77,12 +77,11 @@ define_list_config_array(color_branch_slots);
 static int git_branch_config(const char *var, const char *value, void *cb)
 {
 	const char *slot_name;
-	struct ref_sorting **sorting_tail = (struct ref_sorting **)cb;
 
 	if (!strcmp(var, "branch.sort")) {
 		if (!value)
 			return config_error_nonbool(var);
-		parse_ref_sorting(sorting_tail, value);
+		string_list_append(cb, value);
 		return 0;
 	}
 
@@ -625,7 +624,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 	enum branch_track track;
 	struct ref_filter filter;
 	int icase = 0;
-	static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
+	static struct ref_sorting *sorting;
+	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 	struct ref_format format = REF_FORMAT_INIT;
 
 	struct option options[] = {
@@ -666,7 +666,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 		OPT_MERGED(&filter, N_("print only branches that are merged")),
 		OPT_NO_MERGED(&filter, N_("print only branches that are not merged")),
 		OPT_COLUMN(0, "column", &colopts, N_("list branches in columns")),
-		OPT_REF_SORT(sorting_tail),
+		OPT_REF_SORT(&sorting_options),
 		OPT_CALLBACK(0, "points-at", &filter.points_at, N_("object"),
 			N_("print only branches of the object"), parse_opt_object_name),
 		OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
@@ -683,7 +683,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 	if (argc == 2 && !strcmp(argv[1], "-h"))
 		usage_with_options(builtin_branch_usage, options);
 
-	git_config(git_branch_config, sorting_tail);
+	git_config(git_branch_config, &sorting_options);
 
 	track = git_branch_track;
 
@@ -749,8 +749,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 		 * local branches 'refs/heads/...' and finally remote-tracking
 		 * branches 'refs/remotes/...'.
 		 */
-		if (!sorting)
-			sorting = ref_default_sorting();
+		sorting = ref_sorting_options(&sorting_options);
 		ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
 		ref_sorting_set_sort_flags_all(
 			sorting, REF_SORTING_DETACHED_HEAD_FIRST, 1);
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 16a2c7d57c..6f62f40d12 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -17,7 +17,8 @@ static char const * const for_each_ref_usage[] = {
 int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 {
 	int i;
-	struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
+	struct ref_sorting *sorting;
+	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 	int maxcount = 0, icase = 0;
 	struct ref_array array;
 	struct ref_filter filter;
@@ -39,7 +40,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 		OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
 		OPT_STRING(  0 , "format", &format.format, N_("format"), N_("format to use for the output")),
 		OPT__COLOR(&format.use_color, N_("respect format colors")),
-		OPT_REF_SORT(sorting_tail),
+		OPT_REF_SORT(&sorting_options),
 		OPT_CALLBACK(0, "points-at", &filter.points_at,
 			     N_("object"), N_("print only refs which points at the given object"),
 			     parse_opt_object_name),
@@ -70,8 +71,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 	if (verify_ref_format(&format))
 		usage_with_options(for_each_ref_usage, opts);
 
-	if (!sorting)
-		sorting = ref_default_sorting();
+	sorting = ref_sorting_options(&sorting_options);
 	ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
 	filter.ignore_case = icase;
 
diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c
index 318949c3d7..44448fa61d 100644
--- a/builtin/ls-remote.c
+++ b/builtin/ls-remote.c
@@ -54,7 +54,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
 	struct transport *transport;
 	const struct ref *ref;
 	struct ref_array ref_array;
-	static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
+	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 
 	struct option options[] = {
 		OPT__QUIET(&quiet, N_("do not print remote URL")),
@@ -68,7 +68,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
 		OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
 		OPT_BOOL(0, "get-url", &get_url,
 			 N_("take url.<base>.insteadOf into account")),
-		OPT_REF_SORT(sorting_tail),
+		OPT_REF_SORT(&sorting_options),
 		OPT_SET_INT_F(0, "exit-code", &status,
 			      N_("exit with exit code 2 if no matching refs are found"),
 			      2, PARSE_OPT_NOCOMPLETE),
@@ -86,8 +86,6 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
 
 	packet_trace_identity("ls-remote");
 
-	UNLEAK(sorting);
-
 	if (argc > 1) {
 		int i;
 		CALLOC_ARRAY(pattern, argc);
@@ -139,8 +137,13 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
 		item->symref = xstrdup_or_null(ref->symref);
 	}
 
-	if (sorting)
+	if (sorting_options.nr) {
+		struct ref_sorting *sorting;
+
+		sorting = ref_sorting_options(&sorting_options);
 		ref_array_sort(sorting, &ref_array);
+		ref_sorting_release(sorting);
+	}
 
 	for (i = 0; i < ref_array.nr; i++) {
 		const struct ref_array_item *ref = ref_array.items[i];
diff --git a/builtin/tag.c b/builtin/tag.c
index 6fe646710d..41863c5ab7 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -178,7 +178,6 @@ static const char tag_template_nocleanup[] =
 static int git_tag_config(const char *var, const char *value, void *cb)
 {
 	int status;
-	struct ref_sorting **sorting_tail = (struct ref_sorting **)cb;
 
 	if (!strcmp(var, "tag.gpgsign")) {
 		config_sign_tag = git_config_bool(var, value);
@@ -188,7 +187,7 @@ static int git_tag_config(const char *var, const char *value, void *cb)
 	if (!strcmp(var, "tag.sort")) {
 		if (!value)
 			return config_error_nonbool(var);
-		parse_ref_sorting(sorting_tail, value);
+		string_list_append(cb, value);
 		return 0;
 	}
 
@@ -436,7 +435,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	struct ref_transaction *transaction;
 	struct strbuf err = STRBUF_INIT;
 	struct ref_filter filter;
-	static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
+	struct ref_sorting *sorting;
+	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 	struct ref_format format = REF_FORMAT_INIT;
 	int icase = 0;
 	int edit_flag = 0;
@@ -470,7 +470,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 		OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't contain the commit")),
 		OPT_MERGED(&filter, N_("print only tags that are merged")),
 		OPT_NO_MERGED(&filter, N_("print only tags that are not merged")),
-		OPT_REF_SORT(sorting_tail),
+		OPT_REF_SORT(&sorting_options),
 		{
 			OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
 			N_("print only tags of the object"), PARSE_OPT_LASTARG_DEFAULT,
@@ -486,7 +486,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 
 	setup_ref_filter_porcelain_msg();
 
-	git_config(git_tag_config, sorting_tail);
+	git_config(git_tag_config, &sorting_options);
 
 	memset(&opt, 0, sizeof(opt));
 	memset(&filter, 0, sizeof(filter));
@@ -525,8 +525,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 			die(_("--column and -n are incompatible"));
 		colopts = 0;
 	}
-	if (!sorting)
-		sorting = ref_default_sorting();
+	sorting = ref_sorting_options(&sorting_options);
 	ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
 	filter.ignore_case = icase;
 	if (cmdmode == 'l') {