Introduce receive.denyDeletes

Occasionally, it may be useful to prevent branches from getting deleted from
a centralized repository, particularly when no administrative access to the
server is available to undo it via reflog. It also makes
receive.denyNonFastForwards more useful if it is used for access control
since it prevents force-updating by deleting and re-creating a ref.

Signed-off-by: Jan Krüger <jk@jk.gs>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jan Krüger 2008-11-01 15:42:16 +01:00 committed by Junio C Hamano
parent aebd173ffa
commit a240de1137
3 changed files with 27 additions and 0 deletions

View File

@ -1188,6 +1188,10 @@ receive.unpackLimit::
especially on slow filesystems. If not set, the value of
`transfer.unpackLimit` is used instead.
receive.denyDeletes::
If set to true, git-receive-pack will deny a ref update that deletes
the ref. Use this to prevent such a ref deletion via a push.
receive.denyNonFastForwards::
If set to true, git-receive-pack will deny a ref update which is
not a fast forward. Use this to prevent such an update via a push,

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@ -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/")) {

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@ -103,6 +103,17 @@ unset GIT_CONFIG GIT_CONFIG_LOCAL
HOME=`pwd`/no-such-directory
export HOME ;# this way we force the victim/.git/config to be used.
test_expect_failure \
'pushing a delete should be denied with denyDeletes' '
cd victim &&
git config receive.denyDeletes true &&
git branch extra master &&
cd .. &&
test -f victim/.git/refs/heads/extra &&
test_must_fail git send-pack ./victim/.git/ :extra master
'
rm -f victim/.git/refs/heads/extra
test_expect_success \
'pushing with --force should be denied with denyNonFastforwards' '
cd victim &&