Merge pull request #103403 from Hilderin/fix-headless-import-always-emits-error

Fix headless import always emits errors

editor/editor_node.cpp

@@ -1207,7 +1207,7 @@ void EditorNode::_sources_changed(bool p_exist) {
 		}
 
 		// Start preview thread now that it's safe.
-		if (!singleton->cmdline_export_mode) {
+		if (!singleton->cmdline_mode) {
 			EditorResourcePreview::get_singleton()->start();
 		}
 
@@ -1807,7 +1807,7 @@ void EditorNode::_save_scene_with_preview(String p_file, int p_idx) {
 	save_scene_progress->step(TTR("Saving Scene"), 4);
 	_save_scene(p_file, p_idx);
 
-	if (!singleton->cmdline_export_mode) {
+	if (!singleton->cmdline_mode) {
 		EditorResourcePreview::get_singleton()->check_for_invalidation(p_file);
 	}
 
@@ -4944,7 +4944,7 @@ bool EditorNode::is_object_of_custom_type(const Object *p_object, const StringNa
 void EditorNode::progress_add_task(const String &p_task, const String &p_label, int p_steps, bool p_can_cancel) {
 	if (!singleton) {
 		return;
-	} else if (singleton->cmdline_export_mode) {
+	} else if (singleton->cmdline_mode) {
 		print_line(p_task + ": begin: " + p_label + " steps: " + itos(p_steps));
 	} else if (singleton->progress_dialog) {
 		singleton->progress_dialog->add_task(p_task, p_label, p_steps, p_can_cancel);
@@ -4954,7 +4954,7 @@ void EditorNode::progress_add_task(const String &p_task, const String &p_label,
 bool EditorNode::progress_task_step(const String &p_task, const String &p_state, int p_step, bool p_force_refresh) {
 	if (!singleton) {
 		return false;
-	} else if (singleton->cmdline_export_mode) {
+	} else if (singleton->cmdline_mode) {
 		print_line("\t" + p_task + ": step " + itos(p_step) + ": " + p_state);
 		return false;
 	} else if (singleton->progress_dialog) {
@@ -4967,7 +4967,7 @@ bool EditorNode::progress_task_step(const String &p_task, const String &p_state,
 void EditorNode::progress_end_task(const String &p_task) {
 	if (!singleton) {
 		return;
-	} else if (singleton->cmdline_export_mode) {
+	} else if (singleton->cmdline_mode) {
 		print_line(p_task + ": end");
 	} else if (singleton->progress_dialog) {
 		singleton->progress_dialog->end_task(p_task);
@@ -5220,7 +5220,7 @@ Error EditorNode::export_preset(const String &p_preset, const String &p_path, bo
 	export_defer.android_build_template = p_android_build_template;
 	export_defer.patch = p_patch;
 	export_defer.patches = p_patches;
-	cmdline_export_mode = true;
+	cmdline_mode = true;
 	return OK;
 }
 
@@ -6848,6 +6848,11 @@ EditorNode::EditorNode() {
 	DEV_ASSERT(!singleton);
 	singleton = this;
 
+	// Detecting headless mode, that means the editor is running in command line.
+	if (!DisplayServer::get_singleton()->window_can_draw()) {
+		cmdline_mode = true;
+	}
+
 	Resource::_get_local_scene_func = _resource_get_edited_scene;
 
 	{

editor/editor_node.h

@@ -419,7 +419,7 @@ private:
 	bool script_distraction_free = false;
 
 	bool changing_scene = false;
-	bool cmdline_export_mode = false;
+	bool cmdline_mode = false;
 	bool convert_old = false;
 	bool immediate_dialog_confirmed = false;
 	bool opening_prev = false;