commit: export add_header_signature to support handling signatures on tags

Rename add_commit_signature as add_header_signature, and expose it so that it can be used for converting tags from one object format to another. Inspired-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Eric W. Biederman committed Oct 1, 2023 at 21:40 UTC 6bcc5fa20d960c86a58248e66481c1c57155cca6
2 files changed +4 -3
commit.c
+3 -3
@@ -1101,7 +1101,7 @@ static const char *gpg_sig_headers[] = {
1101 "gpgsig-sha256",
1102 };
1103
1104 -static int add_commit_signature(struct strbuf *buf, struct strbuf *sig, const struct git_hash_algo *algo)
1104 +int add_header_signature(struct strbuf *buf, struct strbuf *sig, const struct git_hash_algo *algo)
1105 {
1106 int inspos, copypos;
1107 const char *eoh;
@@ -1770,9 +1770,9 @@ int commit_tree_extended(const char *msg, size_t msg_len,
1770 for (i = 0; i < ARRAY_SIZE(bufs); i++) {
1771 if (!bufs[i].algo)
1772 continue;
1773 - add_commit_signature(&buffer, bufs[i].sig, bufs[i].algo);
1773 + add_header_signature(&buffer, bufs[i].sig, bufs[i].algo);
1774 if (r->compat_hash_algo)
1775 - add_commit_signature(&compat_buffer, bufs[i].sig, bufs[i].algo);
1775 + add_header_signature(&compat_buffer, bufs[i].sig, bufs[i].algo);
1776 }
1777 }
1778
commit.h
+1
@@ -370,5 +370,6 @@ int parse_buffer_signed_by_header(const char *buffer,
370 struct strbuf *payload,
371 struct strbuf *signature,
372 const struct git_hash_algo *algop);
373 +int add_header_signature(struct strbuf *buf, struct strbuf *sig, const struct git_hash_algo *algo);
374
375 #endif /* COMMIT_H */