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, 1 insertions, 0 deletions

diff --git a/fsck.h b/fsck.h
index af3c84e878..3ef92a31a6 100644
--- a/fsck.h
+++ b/fsck.h
@@ -9,6 +9,7 @@ struct fsck_options;
 void fsck_set_msg_type(struct fsck_options *options,
 		const char *msg_id, const char *msg_type);
 void fsck_set_msg_types(struct fsck_options *options, const char *values);
+int is_valid_msg_type(const char *msg_id, const char *msg_type);
 
 /*
  * callback function for fsck_walk