Function attach_result_source

src/mcp/mcp.c:4593–4631

Attach source or context lines to a search result JSON item. */

/* Attach source or context lines to a search result JSON item. */
static void attach_result_source(yyjson_mut_doc *doc, yyjson_mut_val *item, search_result_t *r,
                                 int mode, int context_lines, const char *root_path) {
    enum { MODE_FULL = 1 };
    if (r->start_line <= 0 || r->end_line <= 0) {
        return;
    }
    char abs_path[CBM_SZ_1K];
    snprintf(abs_path, sizeof(abs_path), "%s/%s", root_path, r->file);

    /* Containment: a search result whose indexed path resolves outside the
     * project root (a `..` segment, or a symlink/junction that discovery
     * followed) must not be read back into the response. Same guard the
     * snippet path already uses. */
    if (!cbm_path_within_root(root_path, abs_path)) {
        return;
    }

    if (mode == MODE_FULL) {
        char *source = read_file_lines(abs_path, r->start_line, r->end_line);
        if (source) {
            sanitize_ascii(source);
            yyjson_mut_obj_add_strcpy(doc, item, "source", source);
            free(source);
        }
    } else if (context_lines > 0 && r->match_count > 0) {
        int ctx_start = r->match_lines[0] - context_lines;
        int ctx_end = r->match_lines[r->match_count - SKIP_ONE] + context_lines;
        if (ctx_start < SKIP_ONE) {
            ctx_start = SKIP_ONE;
        }
        char *ctx = read_file_lines(abs_path, ctx_start, ctx_end);
        if (ctx) {
            sanitize_ascii(ctx);
            yyjson_mut_obj_add_strcpy(doc, item, "context", ctx);
            yyjson_mut_obj_add_int(doc, item, "context_start", ctx_start);
            free(ctx);
        }
    }
}

/* Build directory distribution object from search results (top-level dir → count). */
static yyjson_mut_val *build_dir_distribution(yyjson_mut_doc *doc, search_result_t *sr,