Allow passing UID to importer

This helps, for importers spitting out new resources to the res://
filesystem to actually hash them to generate deterministic UIDs.

This PR also fixes the determinism for translations.

38 files changed, 54 insertions, 41 deletions

diff --git a/core/io/resource_importer.h b/core/io/resource_importer.h
index 3ca8f7c05d..86e8980cba 100644
--- a/core/io/resource_importer.h
+++ b/core/io/resource_importer.h
@@ -147,7 +147,7 @@ public:
 	virtual void handle_compatibility_options(HashMap<StringName, Variant> &p_import_params) const {}
 	virtual String get_option_group_file() const { return String(); }
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) = 0;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) = 0;
 	virtual bool can_import_threaded() const { return false; }
 	virtual void import_threaded_begin() {}
 	virtual void import_threaded_end() {}
diff --git a/core/templates/hashfuncs.h b/core/templates/hashfuncs.h
index 7818ed0706..e681835c5a 100644
--- a/core/templates/hashfuncs.h
+++ b/core/templates/hashfuncs.h
@@ -110,6 +110,16 @@ static _FORCE_INLINE_ uint32_t hash_one_uint64(const uint64_t p_int) {
 	return uint32_t(v);
 }
 
+static _FORCE_INLINE_ uint64_t hash64_murmur3_64(uint64_t key, uint64_t seed) {
+	key ^= seed;
+	key ^= key >> 33;
+	key *= 0xff51afd7ed558ccd;
+	key ^= key >> 33;
+	key *= 0xc4ceb9fe1a85ec53;
+	key ^= key >> 33;
+	return key;
+}
+
 #define HASH_MURMUR3_SEED 0x7F07C65
 // Murmurhash3 32-bit version.
 // All MurmurHash versions are public domain software, and the author disclaims all copyright to their code.
diff --git a/editor/editor_file_system.cpp b/editor/editor_file_system.cpp
index 558eed98c6..e2ad78164d 100644
--- a/editor/editor_file_system.cpp
+++ b/editor/editor_file_system.cpp
@@ -2740,13 +2740,17 @@ Error EditorFileSystem::_reimport_file(const String &p_file, const HashMap<Strin
 		}
 	}
 
+	if (uid == ResourceUID::INVALID_ID) {
+		uid = ResourceUID::get_singleton()->create_id();
+	}
+
 	//finally, perform import!!
 	String base_path = ResourceFormatImporter::get_singleton()->get_import_base_path(p_file);
 
 	List<String> import_variants;
 	List<String> gen_files;
 	Variant meta;
-	Error err = importer->import(p_file, base_path, params, &import_variants, &gen_files, &meta);
+	Error err = importer->import(uid, p_file, base_path, params, &import_variants, &gen_files, &meta);
 
 	// As import is complete, save the .import file.
 
@@ -2767,10 +2771,6 @@ Error EditorFileSystem::_reimport_file(const String &p_file, const HashMap<Strin
 			f->store_line("type=\"" + importer->get_resource_type() + "\"");
 		}
 
-		if (uid == ResourceUID::INVALID_ID) {
-			uid = ResourceUID::get_singleton()->create_id();
-		}
-
 		f->store_line("uid=\"" + ResourceUID::get_singleton()->id_to_text(uid) + "\""); // Store in readable format.
 
 		if (err == OK) {
diff --git a/editor/import/3d/resource_importer_obj.cpp b/editor/import/3d/resource_importer_obj.cpp
index 3669844207..59d39152e9 100644
--- a/editor/import/3d/resource_importer_obj.cpp
+++ b/editor/import/3d/resource_importer_obj.cpp
@@ -646,7 +646,7 @@ bool ResourceImporterOBJ::get_option_visibility(const String &p_path, const Stri
 	return true;
 }
 
-Error ResourceImporterOBJ::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterOBJ::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	List<Ref<ImporterMesh>> meshes;
 
 	Vector<uint8_t> src_lightmap_cache;
diff --git a/editor/import/3d/resource_importer_obj.h b/editor/import/3d/resource_importer_obj.h
index 9d299bc31a..c4a99428ef 100644
--- a/editor/import/3d/resource_importer_obj.h
+++ b/editor/import/3d/resource_importer_obj.h
@@ -61,7 +61,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	ResourceImporterOBJ();
 };
diff --git a/editor/import/3d/resource_importer_scene.cpp b/editor/import/3d/resource_importer_scene.cpp
index edf7aa66f0..2db478a75b 100644
--- a/editor/import/3d/resource_importer_scene.cpp
+++ b/editor/import/3d/resource_importer_scene.cpp
@@ -2872,7 +2872,7 @@ Error ResourceImporterScene::_check_resource_save_paths(const Dictionary &p_data
 	return OK;
 }
 
-Error ResourceImporterScene::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterScene::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	const String &src_path = p_source_file;
 
 	Ref<EditorSceneFormatImporter> importer;
diff --git a/editor/import/3d/resource_importer_scene.h b/editor/import/3d/resource_importer_scene.h
index daeab2ae03..b2f5fab0eb 100644
--- a/editor/import/3d/resource_importer_scene.h
+++ b/editor/import/3d/resource_importer_scene.h
@@ -299,7 +299,7 @@ public:
 	void _compress_animations(AnimationPlayer *anim, int p_page_size_kb);
 
 	Node *pre_import(const String &p_source_file, const HashMap<StringName, Variant> &p_options);
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool has_advanced_options() const override;
 	virtual void show_advanced_options(const String &p_path) override;
diff --git a/editor/import/editor_import_plugin.cpp b/editor/import/editor_import_plugin.cpp
index 3243dcf256..650c0e27ca 100644
--- a/editor/import/editor_import_plugin.cpp
+++ b/editor/import/editor_import_plugin.cpp
@@ -163,7 +163,7 @@ bool EditorImportPlugin::get_option_visibility(const String &p_path, const Strin
 	ERR_FAIL_V_MSG(false, "Unimplemented _get_option_visibility in add-on.");
 }
 
-Error EditorImportPlugin::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error EditorImportPlugin::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	Dictionary options;
 	TypedArray<String> platform_variants, gen_files;
 
diff --git a/editor/import/editor_import_plugin.h b/editor/import/editor_import_plugin.h
index ea5cfc2682..df472b416b 100644
--- a/editor/import/editor_import_plugin.h
+++ b/editor/import/editor_import_plugin.h
@@ -69,7 +69,7 @@ public:
 	virtual int get_import_order() const override;
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata = nullptr) override;
 	virtual bool can_import_threaded() const override;
 	Error append_import_external_resource(const String &p_file, const HashMap<StringName, Variant> &p_custom_options = HashMap<StringName, Variant>(), const String &p_custom_importer = String(), Variant p_generator_parameters = Variant());
 };
diff --git a/editor/import/resource_importer_bitmask.cpp b/editor/import/resource_importer_bitmask.cpp
index e7b7850b02..8441a49666 100644
--- a/editor/import/resource_importer_bitmask.cpp
+++ b/editor/import/resource_importer_bitmask.cpp
@@ -72,7 +72,7 @@ void ResourceImporterBitMap::get_import_options(const String &p_path, List<Impor
 	r_options->push_back(ImportOption(PropertyInfo(Variant::FLOAT, "threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), 0.5));
 }
 
-Error ResourceImporterBitMap::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterBitMap::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	int create_from = p_options["create_from"];
 	float threshold = p_options["threshold"];
 	Ref<Image> image;
diff --git a/editor/import/resource_importer_bitmask.h b/editor/import/resource_importer_bitmask.h
index 30564bf0fe..fcb152b47d 100644
--- a/editor/import/resource_importer_bitmask.h
+++ b/editor/import/resource_importer_bitmask.h
@@ -48,7 +48,7 @@ public:
 
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_bmfont.cpp b/editor/import/resource_importer_bmfont.cpp
index 085ca1362d..b7efdbb6d6 100644
--- a/editor/import/resource_importer_bmfont.cpp
+++ b/editor/import/resource_importer_bmfont.cpp
@@ -67,7 +67,7 @@ void ResourceImporterBMFont::get_import_options(const String &p_path, List<Impor
 	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "scaling_mode", PROPERTY_HINT_ENUM, "Disabled,Enabled (Integer),Enabled (Fractional)"), TextServer::FIXED_SIZE_SCALE_ENABLED));
 }
 
-Error ResourceImporterBMFont::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterBMFont::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	print_verbose("Importing BMFont font from: " + p_source_file);
 
 	Array fallbacks = p_options["fallbacks"];
diff --git a/editor/import/resource_importer_bmfont.h b/editor/import/resource_importer_bmfont.h
index 48f036ff13..74fef9ff16 100644
--- a/editor/import/resource_importer_bmfont.h
+++ b/editor/import/resource_importer_bmfont.h
@@ -48,7 +48,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_csv_translation.cpp b/editor/import/resource_importer_csv_translation.cpp
index c181011402..17f6070d35 100644
--- a/editor/import/resource_importer_csv_translation.cpp
+++ b/editor/import/resource_importer_csv_translation.cpp
@@ -72,7 +72,7 @@ void ResourceImporterCSVTranslation::get_import_options(const String &p_path, Li
 	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "delimiter", PROPERTY_HINT_ENUM, "Comma,Semicolon,Tab"), 0));
 }
 
-Error ResourceImporterCSVTranslation::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterCSVTranslation::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	bool compress = p_options["compress"];
 
 	String delimiter;
@@ -147,6 +147,9 @@ Error ResourceImporterCSVTranslation::import(const String &p_source_file, const
 		if (r_gen_files) {
 			r_gen_files->push_back(save_path);
 		}
+
+		ResourceUID::ID save_id = hash64_murmur3_64(translations[i]->get_locale().hash64(), p_source_id);
+		ResourceSaver::set_uid(save_path, save_id);
 	}
 
 	return OK;
diff --git a/editor/import/resource_importer_csv_translation.h b/editor/import/resource_importer_csv_translation.h
index 9c83719ed1..63676c61a6 100644
--- a/editor/import/resource_importer_csv_translation.h
+++ b/editor/import/resource_importer_csv_translation.h
@@ -49,7 +49,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_dynamic_font.cpp b/editor/import/resource_importer_dynamic_font.cpp
index fa222b2790..a4a5e445e3 100644
--- a/editor/import/resource_importer_dynamic_font.cpp
+++ b/editor/import/resource_importer_dynamic_font.cpp
@@ -141,7 +141,7 @@ void ResourceImporterDynamicFont::show_advanced_options(const String &p_path) {
 	DynamicFontImportSettingsDialog::get_singleton()->open_settings(p_path);
 }
 
-Error ResourceImporterDynamicFont::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterDynamicFont::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	print_verbose("Importing dynamic font from: " + p_source_file);
 
 	int antialiasing = p_options["antialiasing"];
diff --git a/editor/import/resource_importer_dynamic_font.h b/editor/import/resource_importer_dynamic_font.h
index 7c7a16cf92..73ef96d583 100644
--- a/editor/import/resource_importer_dynamic_font.h
+++ b/editor/import/resource_importer_dynamic_font.h
@@ -58,7 +58,7 @@ public:
 	bool has_advanced_options() const override;
 	void show_advanced_options(const String &p_path) override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_image.cpp b/editor/import/resource_importer_image.cpp
index 4f6dd4e4ef..5a4f64d245 100644
--- a/editor/import/resource_importer_image.cpp
+++ b/editor/import/resource_importer_image.cpp
@@ -70,7 +70,7 @@ String ResourceImporterImage::get_preset_name(int p_idx) const {
 void ResourceImporterImage::get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset) const {
 }
 
-Error ResourceImporterImage::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterImage::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	Ref<FileAccess> f = FileAccess::open(p_source_file, FileAccess::READ);
 
 	ERR_FAIL_COND_V_MSG(f.is_null(), ERR_CANT_OPEN, "Cannot open file from path '" + p_source_file + "'.");
diff --git a/editor/import/resource_importer_image.h b/editor/import/resource_importer_image.h
index dd395009c1..da1925bc5c 100644
--- a/editor/import/resource_importer_image.h
+++ b/editor/import/resource_importer_image.h
@@ -50,7 +50,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_imagefont.cpp b/editor/import/resource_importer_imagefont.cpp
index f01381904d..44ae2b5ff1 100644
--- a/editor/import/resource_importer_imagefont.cpp
+++ b/editor/import/resource_importer_imagefont.cpp
@@ -75,7 +75,7 @@ void ResourceImporterImageFont::get_import_options(const String &p_path, List<Im
 	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "scaling_mode", PROPERTY_HINT_ENUM, "Disabled,Enabled (Integer),Enabled (Fractional)"), TextServer::FIXED_SIZE_SCALE_ENABLED));
 }
 
-Error ResourceImporterImageFont::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterImageFont::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	print_verbose("Importing image font from: " + p_source_file);
 
 	int columns = p_options["columns"];
diff --git a/editor/import/resource_importer_imagefont.h b/editor/import/resource_importer_imagefont.h
index 6b30a3cd6e..79e9455d6d 100644
--- a/editor/import/resource_importer_imagefont.h
+++ b/editor/import/resource_importer_imagefont.h
@@ -48,7 +48,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_layered_texture.cpp b/editor/import/resource_importer_layered_texture.cpp
index 312195fcd7..0d0c89425d 100644
--- a/editor/import/resource_importer_layered_texture.cpp
+++ b/editor/import/resource_importer_layered_texture.cpp
@@ -289,7 +289,7 @@ void ResourceImporterLayeredTexture::_save_tex(Vector<Ref<Image>> p_images, cons
 	}
 }
 
-Error ResourceImporterLayeredTexture::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterLayeredTexture::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	int compress_mode = p_options["compress/mode"];
 	float lossy = p_options["compress/lossy_quality"];
 	bool high_quality = p_options["compress/high_quality"];
diff --git a/editor/import/resource_importer_layered_texture.h b/editor/import/resource_importer_layered_texture.h
index d8b5bc2d14..271f1f4543 100644
--- a/editor/import/resource_importer_layered_texture.h
+++ b/editor/import/resource_importer_layered_texture.h
@@ -112,7 +112,7 @@ public:
 
 	void _save_tex(Vector<Ref<Image>> p_images, const String &p_to_path, int p_compress_mode, float p_lossy, Image::CompressMode p_vram_compression, Image::CompressSource p_csource, Image::UsedChannels used_channels, bool p_mipmaps, bool p_force_po2);
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool are_import_settings_valid(const String &p_path, const Dictionary &p_meta) const override;
 	virtual String get_import_settings_string() const override;
diff --git a/editor/import/resource_importer_shader_file.cpp b/editor/import/resource_importer_shader_file.cpp
index b7508e7644..639ce48f75 100644
--- a/editor/import/resource_importer_shader_file.cpp
+++ b/editor/import/resource_importer_shader_file.cpp
@@ -89,7 +89,7 @@ static String _include_function(const String &p_path, void *userpointer) {
 	return file_inc->get_as_utf8_string();
 }
 
-Error ResourceImporterShaderFile::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterShaderFile::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	/* STEP 1, Read shader code */
 	ERR_FAIL_COND_V_EDMSG((OS::get_singleton()->get_current_rendering_method() == "gl_compatibility"), ERR_UNAVAILABLE, "Cannot import custom .glsl shaders when using the gl_compatibility rendering_method. Please switch to the forward_plus or mobile rendering methods to use custom shaders.");
 	ERR_FAIL_COND_V_EDMSG((DisplayServer::get_singleton()->get_name() == "headless"), ERR_UNAVAILABLE, "Cannot import custom .glsl shaders when running in headless mode.");
diff --git a/editor/import/resource_importer_shader_file.h b/editor/import/resource_importer_shader_file.h
index b28dea36d6..440a3d86b4 100644
--- a/editor/import/resource_importer_shader_file.h
+++ b/editor/import/resource_importer_shader_file.h
@@ -49,7 +49,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_texture.cpp b/editor/import/resource_importer_texture.cpp
index 24a14c60ad..71ccef4752 100644
--- a/editor/import/resource_importer_texture.cpp
+++ b/editor/import/resource_importer_texture.cpp
@@ -428,7 +428,7 @@ Dictionary ResourceImporterTexture::_load_editor_meta(const String &p_path) cons
 	return f->get_var();
 }
 
-Error ResourceImporterTexture::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterTexture::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	// Parse import options.
 	int32_t loader_flags = ImageFormatLoader::FLAG_NONE;
 
diff --git a/editor/import/resource_importer_texture.h b/editor/import/resource_importer_texture.h
index 6c87cd0abb..8aa044f3c8 100644
--- a/editor/import/resource_importer_texture.h
+++ b/editor/import/resource_importer_texture.h
@@ -100,7 +100,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/editor/import/resource_importer_texture_atlas.cpp b/editor/import/resource_importer_texture_atlas.cpp
index d6ce39f6a6..7e645cc0d0 100644
--- a/editor/import/resource_importer_texture_atlas.cpp
+++ b/editor/import/resource_importer_texture_atlas.cpp
@@ -91,7 +91,7 @@ String ResourceImporterTextureAtlas::get_option_group_file() const {
 	return "atlas_file";
 }
 
-Error ResourceImporterTextureAtlas::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterTextureAtlas::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	/* If this happens, it's because the atlas_file field was not filled, so just import a broken texture */
 
 	//use an xpm because it's size independent, the editor images are vector and size dependent
diff --git a/editor/import/resource_importer_texture_atlas.h b/editor/import/resource_importer_texture_atlas.h
index e4ad9ac230..943f221679 100644
--- a/editor/import/resource_importer_texture_atlas.h
+++ b/editor/import/resource_importer_texture_atlas.h
@@ -64,7 +64,7 @@ public:
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 	virtual String get_option_group_file() const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 	virtual Error import_group_file(const String &p_group_file, const HashMap<String, HashMap<StringName, Variant>> &p_source_file_options, const HashMap<String, String> &p_base_paths) override;
 
 	virtual bool can_import_threaded() const override { return true; }
diff --git a/editor/import/resource_importer_wav.cpp b/editor/import/resource_importer_wav.cpp
index 2654952e8a..f500ec4a07 100644
--- a/editor/import/resource_importer_wav.cpp
+++ b/editor/import/resource_importer_wav.cpp
@@ -94,7 +94,7 @@ void ResourceImporterWAV::get_import_options(const String &p_path, List<ImportOp
 	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "compress/mode", PROPERTY_HINT_ENUM, "PCM (Uncompressed),IMA ADPCM,Quite OK Audio"), 2));
 }
 
-Error ResourceImporterWAV::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterWAV::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	/* STEP 1, READ WAVE FILE */
 
 	Error err;
diff --git a/editor/import/resource_importer_wav.h b/editor/import/resource_importer_wav.h
index 2253756554..361541c6c1 100644
--- a/editor/import/resource_importer_wav.h
+++ b/editor/import/resource_importer_wav.h
@@ -140,7 +140,7 @@ public:
 		}
 	}
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/modules/gltf/tests/test_gltf_extras.h b/modules/gltf/tests/test_gltf_extras.h
index 37c8f6925c..73ef02e9f1 100644
--- a/modules/gltf/tests/test_gltf_extras.h
+++ b/modules/gltf/tests/test_gltf_extras.h
@@ -91,7 +91,7 @@ static Node *_gltf_export_then_import(Node *p_root, String &p_tempfilebase) {
 	options["gltf/naming_version"] = 1;
 
 	// Process gltf file, note that this generates `.scn` resource from the 2nd argument.
-	err = import_scene->import(p_tempfilebase + ".gltf", p_tempfilebase, options, nullptr, nullptr, nullptr);
+	err = import_scene->import(0, p_tempfilebase + ".gltf", p_tempfilebase, options, nullptr, nullptr, nullptr);
 	CHECK_MESSAGE(err == OK, "GLTF import failed.");
 	ResourceImporterScene::remove_scene_importer(import_gltf);
 
diff --git a/modules/minimp3/resource_importer_mp3.cpp b/modules/minimp3/resource_importer_mp3.cpp
index e4b54ef050..f1f0a771ad 100644
--- a/modules/minimp3/resource_importer_mp3.cpp
+++ b/modules/minimp3/resource_importer_mp3.cpp
@@ -115,7 +115,7 @@ Ref<AudioStreamMP3> ResourceImporterMP3::import_mp3(const String &p_path) {
 	return mp3_stream;
 }
 
-Error ResourceImporterMP3::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterMP3::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	bool loop = p_options["loop"];
 	float loop_offset = p_options["loop_offset"];
 	double bpm = p_options["bpm"];
diff --git a/modules/minimp3/resource_importer_mp3.h b/modules/minimp3/resource_importer_mp3.h
index 037756328f..35cc761eb4 100644
--- a/modules/minimp3/resource_importer_mp3.h
+++ b/modules/minimp3/resource_importer_mp3.h
@@ -57,7 +57,7 @@ public:
 #endif
 	static Ref<AudioStreamMP3> import_mp3(const String &p_path);
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/modules/vorbis/resource_importer_ogg_vorbis.cpp b/modules/vorbis/resource_importer_ogg_vorbis.cpp
index 729a6f5561..a7423e2d7b 100644
--- a/modules/vorbis/resource_importer_ogg_vorbis.cpp
+++ b/modules/vorbis/resource_importer_ogg_vorbis.cpp
@@ -95,7 +95,7 @@ void ResourceImporterOggVorbis::show_advanced_options(const String &p_path) {
 }
 #endif
 
-Error ResourceImporterOggVorbis::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+Error ResourceImporterOggVorbis::import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
 	bool loop = p_options["loop"];
 	double loop_offset = p_options["loop_offset"];
 	double bpm = p_options["bpm"];
diff --git a/modules/vorbis/resource_importer_ogg_vorbis.h b/modules/vorbis/resource_importer_ogg_vorbis.h
index f378b80694..a4e4441d82 100644
--- a/modules/vorbis/resource_importer_ogg_vorbis.h
+++ b/modules/vorbis/resource_importer_ogg_vorbis.h
@@ -63,7 +63,7 @@ public:
 	virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const override;
 	virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const override;
 
-	virtual Error import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
+	virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
 
 	virtual bool can_import_threaded() const override { return true; }
 
diff --git a/tests/core/string/test_translation.h b/tests/core/string/test_translation.h
index 7c389191e3..2b1069d40c 100644
--- a/tests/core/string/test_translation.h
+++ b/tests/core/string/test_translation.h
@@ -161,7 +161,7 @@ TEST_CASE("[TranslationCSV] CSV import") {
 
 	List<String> gen_files;
 
-	Error result = import_csv_translation->import(TestUtils::get_data_path("translations.csv"),
+	Error result = import_csv_translation->import(0, TestUtils::get_data_path("translations.csv"),
 			"", options, nullptr, &gen_files);
 	CHECK(result == OK);
 	CHECK(gen_files.size() == 4);
diff --git a/tests/scene/test_audio_stream_wav.h b/tests/scene/test_audio_stream_wav.h
index d3d5cc8a30..7276dd0878 100644
--- a/tests/scene/test_audio_stream_wav.h
+++ b/tests/scene/test_audio_stream_wav.h
@@ -162,7 +162,7 @@ void run_test(String file_name, AudioStreamWAV::Format data_format, bool stereo,
 		// Compressed streams can't be saved, disable compression.
 		options_map["compress/mode"] = 0;
 
-		REQUIRE(wav_importer->import(save_path, save_path, options_map, nullptr) == OK);
+		REQUIRE(wav_importer->import(0, save_path, save_path, options_map, nullptr) == OK);
 
 		String load_path = save_path + "." + wav_importer->get_save_extension();
 		Ref<AudioStreamWAV> loaded_stream = ResourceLoader::load(load_path, "AudioStreamWAV", ResourceFormatImporter::CACHE_MODE_IGNORE, &error);