Ensure --doctool is run from root directory when implicit cwd is used

main/main.cpp

@@ -3182,6 +3182,7 @@ int Main::start() {
 
 #ifdef TOOLS_ENABLED
  String doc_tool_path;
+ bool doc_tool_implicit_cwd = false;
  BitField<DocTools::GenerateFlags> gen_flags;
  String _export_preset;
  bool export_debug = false;
@@ -3252,6 +3253,7 @@ int Main::start() {
  if (doc_tool_path.begins_with("-")) {
  // Assuming other command line arg, so default to cwd.
  doc_tool_path = ".";
+ doc_tool_implicit_cwd = true;
  parsed_pair = false;
  }
 #ifdef MODULE_GDSCRIPT_ENABLED
@@ -3282,6 +3284,7 @@ int Main::start() {
  // Handle case where no path is given to --doctool.
  else if (args[i] == "--doctool") {
  doc_tool_path = ".";
+ doc_tool_implicit_cwd = true;
  }
 #endif
  }
@@ -3308,6 +3311,11 @@ int Main::start() {
  {
  Ref<DirAccess> da = DirAccess::open(doc_tool_path);
  ERR_FAIL_COND_V_MSG(da.is_null(), EXIT_FAILURE, "Argument supplied to --doctool must be a valid directory path.");
+ // Ensure that doctool is running in the root dir, but only if
+ // user did not manually specify a path as argument.
+ if (doc_tool_implicit_cwd) {
+ ERR_FAIL_COND_V_MSG(!da->dir_exists("doc"), EXIT_FAILURE, "--doctool must be run from the Godot repository's root folder, or specify a path that points there.");
+ }
  }
 
 #ifndef MODULE_MONO_ENABLED
@@ -3636,7 +3644,7 @@ int Main::start() {
  }
  }
 
- if (doc_tool_path == ".") {
+ if (doc_tool_implicit_cwd) {
  doc_tool_path = "./docs";
  }