gpg-interface: move parse_gpg_output() to where it should be

Earlier, ffb6d7d5 (Move commit GPG signature verification to
commit.c, 2013-03-31) moved this helper that used to be in pretty.c
(i.e. the output code path) to commit.c for better reusability.

It was a good first step in the right direction, but still suffers
from a myopic view that commits will be the only thing we would ever
want to sign---we would actually want to be able to reuse it even
wider.

The function interprets what GPG said; gpg-interface is obviously a
better place.  Move it there.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 11 insertions, 5 deletions

diff --git a/gpg-interface.h b/gpg-interface.h
index 37c23da..82493b7 100644
--- a/gpg-interface.h
+++ b/gpg-interface.h
@@ -5,16 +5,22 @@ struct signature_check {
 	char *payload;
 	char *gpg_output;
 	char *gpg_status;
-	char result; /* 0 (not checked),
-		      * N (checked but no further result),
-		      * U (untrusted good),
-		      * G (good)
-		      * B (bad) */
+
+	/*
+	 * possible "result":
+	 * 0 (not checked)
+	 * N (checked but no further result)
+	 * U (untrusted good)
+	 * G (good)
+	 * B (bad)
+	 */
+	char result;
 	char *signer;
 	char *key;
 };
 
 extern void signature_check_clear(struct signature_check *sigc);
+extern void parse_gpg_output(struct signature_check *);
 extern int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key);
 extern int verify_signed_buffer(const char *payload, size_t payload_size, const char *signature, size_t signature_size, struct strbuf *gpg_output, struct strbuf *gpg_status);
 extern int git_gpg_config(const char *, const char *, void *);