fsck (receive-pack): allow demoting errors to warnings

For example, missing emails in commit and tag objects can be demoted to
mere warnings with

	git config receive.fsck.missingemail=warn

The value is actually a comma-separated list.

In case that the same key is listed in multiple receive.fsck.<msg-id>
lines in the config, the latter configuration wins (this can happen for
example when both $HOME/.gitconfig and .git/config contain message type
settings).

As git receive-pack does not actually perform the checks, it hands off
the setting to index-pack or unpack-objects in the form of an optional
argument to the --strict option.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index 6d170402c1..7cc086f5f2 100644
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -530,6 +530,11 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix)
 				strict = 1;
 				continue;
 			}
+			if (skip_prefix(arg, "--strict=", &arg)) {
+				strict = 1;
+				fsck_set_msg_types(&fsck_options, arg);
+				continue;
+			}
 			if (starts_with(arg, "--pack_header=")) {
 				struct pack_header *hdr;
 				char *c;