commit-graph: error out on invalid commit oids in 'write --stdin-commits'

diff --git a/commit-graph.c b/commit-graph.c
index 04324a464894e930173b7bb0bbea9cf264c0d316..821900675b27f20f7a1480328f46c53fed97957c 100644 (file)
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -782,7 +782,8 @@ struct write_commit_graph_context {
 
        unsigned append:1,
                 report_progress:1,
-                split:1;
+                split:1,
+                check_oids:1;
 
        const struct split_commit_graph_opts *split_opts;
 };
@@ -1193,8 +1194,8 @@ static int fill_oids_from_packs(struct write_commit_graph_context *ctx,
        return 0;
 }
 
-static void fill_oids_from_commit_hex(struct write_commit_graph_context *ctx,
-                                     struct string_list *commit_hex)
+static int fill_oids_from_commit_hex(struct write_commit_graph_context *ctx,
+                                    struct string_list *commit_hex)
 {
        uint32_t i;
        struct strbuf progress_title = STRBUF_INIT;
@@ -1215,20 +1216,21 @@ static void fill_oids_from_commit_hex(struct write_commit_graph_context *ctx,
                struct commit *result;
 
                display_progress(ctx->progress, i + 1);
-               if (commit_hex->items[i].string &&
-                   parse_oid_hex(commit_hex->items[i].string, &oid, &end))
-                       continue;
-
-               result = lookup_commit_reference_gently(ctx->r, &oid, 1);
-
-               if (result) {
+               if (!parse_oid_hex(commit_hex->items[i].string, &oid, &end) &&
+                   (result = lookup_commit_reference_gently(ctx->r, &oid, 1))) {
                        ALLOC_GROW(ctx->oids.list, ctx->oids.nr + 1, ctx->oids.alloc);
                        oidcpy(&ctx->oids.list[ctx->oids.nr], &(result->object.oid));
                        ctx->oids.nr++;
+               } else if (ctx->check_oids) {
+                       error(_("invalid commit object id: %s"),
+                           commit_hex->items[i].string);
+                       return -1;
                }
        }
        stop_progress(&ctx->progress);
        strbuf_release(&progress_title);
+
+       return 0;
 }
 
 static void fill_oids_from_all_packs(struct write_commit_graph_context *ctx)
@@ -1775,6 +1777,7 @@ int write_commit_graph(const char *obj_dir,
        ctx->append = flags & COMMIT_GRAPH_WRITE_APPEND ? 1 : 0;
        ctx->report_progress = flags & COMMIT_GRAPH_WRITE_PROGRESS ? 1 : 0;
        ctx->split = flags & COMMIT_GRAPH_WRITE_SPLIT ? 1 : 0;
+       ctx->check_oids = flags & COMMIT_GRAPH_WRITE_CHECK_OIDS ? 1 : 0;
        ctx->split_opts = split_opts;
 
        if (ctx->split) {
@@ -1829,8 +1832,10 @@ int write_commit_graph(const char *obj_dir,
                        goto cleanup;
        }
 
-       if (commit_hex)
-               fill_oids_from_commit_hex(ctx, commit_hex);
+       if (commit_hex) {
+               if ((res = fill_oids_from_commit_hex(ctx, commit_hex)))
+                       goto cleanup;
+       }
 
        if (!pack_indexes && !commit_hex)
                fill_oids_from_all_packs(ctx);