[PATCH v2 3/5] remote.c: use a transaction for deleting refs

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Transactions now use packed refs when deleting multiple refs so there is no
need to do it manually from remote.c any more.

Signed-off-by: Ronnie Sahlberg <sahlberg@xxxxxxxxxx>
---
 builtin/remote.c | 69 +++++++++++++++++++++++++++++++-------------------------
 1 file changed, 38 insertions(+), 31 deletions(-)

diff --git a/builtin/remote.c b/builtin/remote.c
index bfcc823..3e6ef08 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -750,26 +750,27 @@ static int mv(int argc, const char **argv)
 
 static int remove_branches(struct string_list *branches)
 {
-	const char **branch_names;
 	int i, result = 0;
+	struct ref_transaction *transaction;
+	struct strbuf err = STRBUF_INIT;
 
-	if (lock_packed_refs(0))
-		return unable_to_lock_error(git_path("packed-refs"), errno);
+	transaction = transaction_begin(&err);
+	if (!transaction)
+		die("%s", err.buf);
 
-	branch_names = xmalloc(branches->nr * sizeof(*branch_names));
 	for (i = 0; i < branches->nr; i++)
-		branch_names[i] = branches->items[i].string;
-	result |= repack_without_refs(branch_names, branches->nr, NULL);
-	free(branch_names);
-
-	for (i = 0; i < branches->nr; i++) {
-		struct string_list_item *item = branches->items + i;
-		const char *refname = item->string;
-
-		if (delete_ref(refname, NULL, 0))
-			result |= error(_("Could not remove branch %s"), refname);
-	}
+		if (transaction_delete_sha1(transaction,
+					    branches->items[i].string, NULL,
+					    0, 0, "remote-branches", &err)) {
+			result |= error("%s", err.buf);
+			goto cleanup;
+		}
+	if (transaction_commit(transaction, &err))
+		result |= error("%s", err.buf);
 
+ cleanup:
+	strbuf_release(&err);
+	transaction_free(transaction);
 	return result;
 }
 
@@ -1318,10 +1319,11 @@ static int prune_remote(const char *remote, int dry_run)
 	int result = 0, i;
 	struct ref_states states;
 	struct string_list delete_refs_list = STRING_LIST_INIT_NODUP;
-	const char **delete_refs;
 	const char *dangling_msg = dry_run
 		? _(" %s will become dangling!")
 		: _(" %s has become dangling!");
+	struct ref_transaction *transaction = NULL;
+	struct strbuf err = STRBUF_INIT;
 
 	memset(&states, 0, sizeof(states));
 	get_remote_ref_states(remote, &states, GET_REF_STATES);
@@ -1332,28 +1334,26 @@ static int prune_remote(const char *remote, int dry_run)
 		       states.remote->url_nr
 		       ? states.remote->url[0]
 		       : _("(no URL)"));
-
-		delete_refs = xmalloc(states.stale.nr * sizeof(*delete_refs));
-		for (i = 0; i < states.stale.nr; i++)
-			delete_refs[i] = states.stale.items[i].util;
-		if (!dry_run) {
-			if (lock_packed_refs(0))
-				result |= unable_to_lock_error(
-					git_path("packed-refs"), errno);
-			else
-				result |= repack_without_refs(delete_refs,
-							states.stale.nr, NULL);
-		}
-		free(delete_refs);
 	}
 
+	if (!dry_run) {
+		transaction = transaction_begin(&err);
+		if (!transaction)
+			die("%s", err.buf);
+	}
 	for (i = 0; i < states.stale.nr; i++) {
 		const char *refname = states.stale.items[i].util;
 
 		string_list_insert(&delete_refs_list, refname);
 
-		if (!dry_run)
-			result |= delete_ref(refname, NULL, 0);
+		if (!dry_run) {
+			if (transaction_delete_sha1(transaction,
+					    refname, NULL,
+					    0, 0, "remote-branches", &err)) {
+				result |= error("%s", err.buf);
+				goto cleanup;
+			}
+		}
 
 		if (dry_run)
 			printf_ln(_(" * [would prune] %s"),
@@ -1363,6 +1363,13 @@ static int prune_remote(const char *remote, int dry_run)
 			       abbrev_ref(refname, "refs/remotes/"));
 	}
 
+	if (!dry_run)
+		if (transaction_commit(transaction, &err))
+			result |= error("%s", err.buf);
+
+ cleanup:
+	strbuf_release(&err);
+	transaction_free(transaction);
 	warn_dangling_symrefs(stdout, dangling_msg, &delete_refs_list);
 	string_list_clear(&delete_refs_list, 0);
 
-- 
2.0.1.523.g0041e8a

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