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-rw-r--r--builtin-receive-pack.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/builtin-receive-pack.c b/builtin-receive-pack.c
index 9f60f31c2b..2c0225c89a 100644
--- a/builtin-receive-pack.c
+++ b/builtin-receive-pack.c
@@ -11,6 +11,7 @@
static const char receive_pack_usage[] = "git-receive-pack <git-dir>";
+static int deny_deletes = 0;
static int deny_non_fast_forwards = 0;
static int receive_fsck_objects;
static int receive_unpack_limit = -1;
@@ -23,6 +24,11 @@ static int capabilities_sent;
static int receive_pack_config(const char *var, const char *value, void *cb)
{
+ if (strcmp(var, "receive.denydeletes") == 0) {
+ deny_deletes = git_config_bool(var, value);
+ return 0;
+ }
+
if (strcmp(var, "receive.denynonfastforwards") == 0) {
deny_non_fast_forwards = git_config_bool(var, value);
return 0;
@@ -185,6 +191,12 @@ static const char *update(struct command *cmd)
"but I can't find it!", sha1_to_hex(new_sha1));
return "bad pack";
}
+ if (deny_deletes && is_null_sha1(new_sha1) &&
+ !is_null_sha1(old_sha1) &&
+ !prefixcmp(name, "refs/heads/")) {
+ error("denying ref deletion for %s", name);
+ return "deletion prohibited";
+ }
if (deny_non_fast_forwards && !is_null_sha1(new_sha1) &&
!is_null_sha1(old_sha1) &&
!prefixcmp(name, "refs/heads/")) {