Merge branch 'bw/ref-prefix-for-configured-refspec'

"git fetch $there $refspec" that talks over protocol v2 can take
advantage of server-side ref filtering; the code has been extended
so that this mechanism triggers also when fetching with configured
refspec.

* bw/ref-prefix-for-configured-refspec: (38 commits)
  fetch: generate ref-prefixes when using a configured refspec
  refspec: consolidate ref-prefix generation logic
  submodule: convert push_unpushed_submodules to take a struct refspec
  remote: convert check_push_refs to take a struct refspec
  remote: convert match_push_refs to take a struct refspec
  http-push: store refspecs in a struct refspec
  transport: remove transport_verify_remote_names
  send-pack: store refspecs in a struct refspec
  transport: convert transport_push to take a struct refspec
  push: convert to use struct refspec
  push: check for errors earlier
  remote: convert match_explicit_refs to take a struct refspec
  remote: convert get_ref_match to take a struct refspec
  remote: convert query_refspecs to take a struct refspec
  remote: convert apply_refspecs to take a struct refspec
  remote: convert get_stale_heads to take a struct refspec
  fetch: convert prune_refs to take a struct refspec
  fetch: convert get_ref_map to take a struct refspec
  fetch: convert do_fetch to take a struct refspec
  refspec: remove the deprecated functions
  ...

Author: gitster

Makefile

@@ -928,6 +928,7 @@ LIB_OBJS += refs/files-backend.o
 LIB_OBJS += refs/iterator.o
 LIB_OBJS += refs/packed-backend.o
 LIB_OBJS += refs/ref-cache.o
+LIB_OBJS += refspec.o
 LIB_OBJS += ref-filter.o
 LIB_OBJS += remote.o
 LIB_OBJS += replace-object.o

branch.c

@@ -3,12 +3,13 @@
 #include "config.h"
 #include "branch.h"
 #include "refs.h"
+#include "refspec.h"
 #include "remote.h"
 #include "commit.h"
 #include "worktree.h"
 
 struct tracking {
-	struct refspec spec;
+	struct refspec_item spec;
 	char *src;
 	const char *remote;
 	int matches;
@@ -218,8 +219,8 @@ int validate_new_branchname(const char *name, struct strbuf *ref, int force)
 static int check_tracking_branch(struct remote *remote, void *cb_data)
 {
 	char *tracking_branch = cb_data;
-	struct refspec query;
-	memset(&query, 0, sizeof(struct refspec));
+	struct refspec_item query;
+	memset(&query, 0, sizeof(struct refspec_item));
 	query.dst = tracking_branch;
 	return !remote_find_tracking(remote, &query);
 }

builtin/clone.c

@@ -14,6 +14,7 @@
 #include "parse-options.h"
 #include "fetch-pack.h"
 #include "refs.h"
+#include "refspec.h"
 #include "tree.h"
 #include "tree-walk.h"
 #include "unpack-trees.h"
@@ -546,7 +547,7 @@ static struct ref *find_remote_branch(const struct ref *refs, const char *branch
 }
 
 static struct ref *wanted_peer_refs(const struct ref *refs,
-		struct refspec *refspec)
+		struct refspec_item *refspec)
 {
 	struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD"));
 	struct ref *local_refs = head;
@@ -894,8 +895,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	int err = 0, complete_refs_before_fetch = 1;
 	int submodule_progress;
 
-	struct refspec *refspec;
-	const char *fetch_pattern;
+	struct refspec_item refspec;
 
 	fetch_if_missing = 0;
 
@@ -1077,8 +1077,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	if (option_required_reference.nr || option_optional_reference.nr)
 		setup_reference();
 
-	fetch_pattern = value.buf;
-	refspec = parse_fetch_refspec(1, &fetch_pattern);
+	refspec_item_init(&refspec, value.buf, REFSPEC_FETCH);
 
 	strbuf_reset(&value);
 
@@ -1138,7 +1137,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	refs = transport_get_remote_refs(transport, NULL);
 
 	if (refs) {
-		mapped_refs = wanted_peer_refs(refs, refspec);
+		mapped_refs = wanted_peer_refs(refs, &refspec);
 		/*
 		 * transport_get_remote_refs() may return refs with null sha-1
 		 * in mapped_refs (see struct transport->get_refs_list
@@ -1232,6 +1231,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	strbuf_release(&value);
 	junk_mode = JUNK_LEAVE_ALL;
 
-	free(refspec);
+	refspec_item_clear(&refspec);
 	return err;
 }

builtin/fast-export.c

@@ -7,6 +7,7 @@
 #include "cache.h"
 #include "config.h"
 #include "refs.h"
+#include "refspec.h"
 #include "commit.h"
 #include "object.h"
 #include "tag.h"
@@ -35,8 +36,7 @@ static int use_done_feature;
 static int no_data;
 static int full_tree;
 static struct string_list extra_refs = STRING_LIST_INIT_NODUP;
-static struct refspec *refspecs;
-static int refspecs_nr;
+static struct refspec refspecs = REFSPEC_INIT_FETCH;
 static int anonymize;
 
 static int parse_opt_signed_tag_mode(const struct option *opt,
@@ -828,9 +828,9 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
 		if (dwim_ref(e->name, strlen(e->name), &oid, &full_name) != 1)
 			continue;
 
-		if (refspecs) {
+		if (refspecs.nr) {
 			char *private;
-			private = apply_refspecs(refspecs, refspecs_nr, full_name);
+			private = apply_refspecs(&refspecs, full_name);
 			if (private) {
 				free(full_name);
 				full_name = private;
@@ -976,8 +976,8 @@ static void import_marks(char *input_file)
 static void handle_deletes(void)
 {
 	int i;
-	for (i = 0; i < refspecs_nr; i++) {
-		struct refspec *refspec = &refspecs[i];
+	for (i = 0; i < refspecs.nr; i++) {
+		struct refspec_item *refspec = &refspecs.items[i];
 		if (*refspec->src)
 			continue;
 
@@ -1038,18 +1038,12 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
 		usage_with_options (fast_export_usage, options);
 
 	if (refspecs_list.nr) {
-		const char **refspecs_str;
 		int i;
 
-		ALLOC_ARRAY(refspecs_str, refspecs_list.nr);
 		for (i = 0; i < refspecs_list.nr; i++)
-			refspecs_str[i] = refspecs_list.items[i].string;
-
-		refspecs_nr = refspecs_list.nr;
-		refspecs = parse_fetch_refspec(refspecs_nr, refspecs_str);
+			refspec_append(&refspecs, refspecs_list.items[i].string);
 
 		string_list_clear(&refspecs_list, 1);
-		free(refspecs_str);
 	}
 
 	if (use_done_feature)
@@ -1088,7 +1082,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
 	if (use_done_feature)
 		printf("done\n");
 
-	free_refspec(refspecs_nr, refspecs);
+	refspec_clear(&refspecs);
 
 	return 0;
 }