[PATCH v2 4/7] bulk-checkin: factor our `finalize_checkpoint()`

[Taylor Blau <me@xxxxxxxxxxxx>]

In a similar spirit as previous commits, factor out the routine to
finalize the just-written object from the bulk-checkin mechanism.

Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx>
---
 bulk-checkin.c | 41 +++++++++++++++++++++++++----------------
 1 file changed, 25 insertions(+), 16 deletions(-)

diff --git a/bulk-checkin.c b/bulk-checkin.c
index b92d7a6f5a..f4914fb6d1 100644
--- a/bulk-checkin.c
+++ b/bulk-checkin.c
@@ -292,6 +292,30 @@ static void truncate_checkpoint(struct bulk_checkin_packfile *state,
 	flush_bulk_checkin_packfile(state);
 }
 
+static void finalize_checkpoint(struct bulk_checkin_packfile *state,
+				git_hash_ctx *ctx,
+				struct hashfile_checkpoint *checkpoint,
+				struct pack_idx_entry *idx,
+				struct object_id *result_oid)
+{
+	the_hash_algo->final_oid_fn(result_oid, ctx);
+	if (!idx)
+		return;
+
+	idx->crc32 = crc32_end(state->f);
+	if (already_written(state, result_oid)) {
+		hashfile_truncate(state->f, checkpoint);
+		state->offset = checkpoint->offset;
+		free(idx);
+	} else {
+		oidcpy(&idx->oid, result_oid);
+		ALLOC_GROW(state->written,
+			   state->nr_written + 1,
+			   state->alloc_written);
+		state->written[state->nr_written++] = idx;
+	}
+}
+
 static int deflate_blob_to_pack(struct bulk_checkin_packfile *state,
 				struct object_id *result_oid,
 				int fd, size_t size,
@@ -324,22 +348,7 @@ static int deflate_blob_to_pack(struct bulk_checkin_packfile *state,
 		if (lseek(fd, seekback, SEEK_SET) == (off_t) -1)
 			return error("cannot seek back");
 	}
-	the_hash_algo->final_oid_fn(result_oid, &ctx);
-	if (!idx)
-		return 0;
-
-	idx->crc32 = crc32_end(state->f);
-	if (already_written(state, result_oid)) {
-		hashfile_truncate(state->f, &checkpoint);
-		state->offset = checkpoint.offset;
-		free(idx);
-	} else {
-		oidcpy(&idx->oid, result_oid);
-		ALLOC_GROW(state->written,
-			   state->nr_written + 1,
-			   state->alloc_written);
-		state->written[state->nr_written++] = idx;
-	}
+	finalize_checkpoint(state, &ctx, &checkpoint, idx, result_oid);
 	return 0;
 }
 
-- 
2.42.0.405.gdb2a2f287e