diff options
Diffstat (limited to 'receive-pack.c')
| -rw-r--r-- | receive-pack.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/receive-pack.c b/receive-pack.c index c8aacbbdd3..1fcf3a9112 100644 --- a/receive-pack.c +++ b/receive-pack.c @@ -2,6 +2,8 @@ #include "refs.h" #include "pkt-line.h" #include "run-command.h" +#include "commit.h" +#include "object.h" static const char receive_pack_usage[] = "git-receive-pack <git-dir>"; @@ -94,6 +96,21 @@ static int update(struct command *cmd) return error("unpack should have generated %s, " "but I can't find it!", new_hex); } + if (deny_non_fast_forwards && !is_null_sha1(old_sha1)) { + struct commit *old_commit, *new_commit; + struct commit_list *bases, *ent; + + old_commit = (struct commit *)parse_object(old_sha1); + new_commit = (struct commit *)parse_object(new_sha1); + bases = get_merge_bases(old_commit, new_commit, 1); + for (ent = bases; ent; ent = ent->next) + if (!hashcmp(old_sha1, ent->item->object.sha1)) + break; + free_commit_list(bases); + if (!ent) + return error("denying non-fast forward;" + " you should pull first"); + } if (run_update_hook(name, old_hex, new_hex)) { cmd->error_string = "hook declined"; return error("hook declined to update %s", name); |