[PATCH 4/5] fetch-pack: expose `fetch_pack_config_cb()`

[Justin Tobler <jltobler@gmail.com>]

During fetch-pack operations, git-index-pack(1) may be spawned and
perform fsck checks. The message severity of these checks is
configurable and propagated via appending it to the `--fsck-objects`
option.

With `fetch_pack_config_cb()`, fsck configuration gets populated to a
`fetch_pack_options`. Expose `fetch_pack_config_cb()`, to facilitate
formatted fsck message configuration generation. In a subsequent commit,
this is used to wire message configuration to `unbundle()` during bundle
fetches.

Signed-off-by: Justin Tobler <jltobler@gmail.com>
---
 fetch-pack.c | 4 ++--
 fetch-pack.h | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/fetch-pack.c b/fetch-pack.c
index 73309f8043..10b66795bc 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1857,8 +1857,8 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
 	return ref;
 }
 
-static int fetch_pack_config_cb(const char *var, const char *value,
-				const struct config_context *ctx, void *cb)
+int fetch_pack_config_cb(const char *var, const char *value,
+			 const struct config_context *ctx, void *cb)
 {
 	struct fetch_pack_options *opts = cb;
 	const char *msg_id;
diff --git a/fetch-pack.h b/fetch-pack.h
index 8243b754ce..f35a75a3c5 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -1,6 +1,7 @@
 #ifndef FETCH_PACK_H
 #define FETCH_PACK_H
 
+#include "config.h"
 #include "string-list.h"
 #include "protocol.h"
 #include "list-objects-filter-options.h"
@@ -114,4 +115,7 @@ struct fetch_pack_options {
 	.fsck_msg_types = STRBUF_INIT, \
 }
 
+int fetch_pack_config_cb(const char *var, const char *value,
+			 const struct config_context *ctx, void *cb);
+
 #endif
-- 
2.47.0