commit-graph: don't peek into `struct lock_file`

Similar to the previous commit, avoid peeking into the `struct
lock_file`. Use the lock file API instead.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/commit-graph.c b/commit-graph.c
index 06f8dc1d8966f1ec59f58460a41df67b63180b24..031641014faacfbefb288b88a670c6716566aa2a 100644 (file)
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1694,8 +1694,8 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
        } else {
                hold_lock_file_for_update_mode(&lk, ctx->graph_name,
                                               LOCK_DIE_ON_ERROR, 0444);
-               fd = lk.tempfile->fd;
-               f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
+               fd = get_lock_file_fd(&lk);
+               f = hashfd(fd, get_lock_file_path(&lk));
        }
 
        chunks[0].id = GRAPH_CHUNKID_OIDFANOUT;
@@ -1833,7 +1833,7 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
                result = rename(ctx->graph_name, final_graph_name);
 
                for (i = 0; i < ctx->num_commit_graphs_after; i++)
-                       fprintf(lk.tempfile->fp, "%s\n", ctx->commit_graph_hash_after[i]);
+                       fprintf(get_lock_file_fp(&lk), "%s\n", ctx->commit_graph_hash_after[i]);
 
                if (result) {
                        error(_("failed to rename temporary commit-graph file"));