Pass output and intput options to the renderStart hook

src/rollup/index.ts

@@ -255,7 +255,7 @@ export default async function rollup(rawInputOptions: GenericConfigObject): Prom
 		let outputBundle;
 
 		try {
-			await outputPluginDriver.hookParallel('renderStart', []);
+			await outputPluginDriver.hookParallel('renderStart', [outputOptions, inputOptions]);
 			const addons = await createAddons(outputOptions, outputPluginDriver);
 			for (const chunk of chunks) {
 				if (!inputOptions.preserveModules) chunk.generateInternalExports(outputOptions);
@@ -476,7 +476,6 @@ function normalizeOutputOptions(
 	const mergedOutputOptions = mergedOptions.outputOptions[0];
 	const outputOptionsReducer = (outputOptions: OutputOptions, result: OutputOptions) =>
 		result || outputOptions;
-	// TODO Lukas add inputOptions to hook
 	const outputOptions = outputPluginDriver.hookReduceArg0Sync(
 		'outputOptions',
 		[mergedOutputOptions],

src/rollup/types.d.ts

@@ -332,17 +332,14 @@ interface OnWriteOptions extends OutputOptions {
 	bundle: RollupBuild;
 }
 
-export interface PluginHooks {
+interface OutputPluginHooks {
 	augmentChunkHash: (this: PluginContext, chunk: PreRenderedChunk) => string | void;
-	buildEnd: (this: PluginContext, err?: Error) => Promise<void> | void;
-	buildStart: (this: PluginContext, options: InputOptions) => Promise<void> | void;
 	generateBundle: (
 		this: PluginContext,
 		options: OutputOptions,
 		bundle: OutputBundle,
 		isWrite: boolean
 	) => void | Promise<void>;
-	load: LoadHook;
 	/** @deprecated Use `generateBundle` instead */
 	ongenerate: (
 		this: PluginContext,
@@ -355,33 +352,50 @@ export interface PluginHooks {
 		options: OnWriteOptions,
 		chunk: OutputChunk
 	) => void | Promise<void>;
-	options: (this: MinimalPluginContext, options: InputOptions) => InputOptions | null | undefined;
 	outputOptions: (this: PluginContext, options: OutputOptions) => OutputOptions | null | undefined;
 	renderChunk: RenderChunkHook;
 	renderError: (this: PluginContext, err?: Error) => Promise<void> | void;
-	renderStart: (this: PluginContext) => Promise<void> | void;
+	renderStart: (
+		this: PluginContext,
+		outputOptions: OutputOptions,
+		inputOptions: InputOptions
+	) => Promise<void> | void;
 	/** @deprecated Use `resolveFileUrl` instead */
 	resolveAssetUrl: ResolveAssetUrlHook;
 	resolveDynamicImport: ResolveDynamicImportHook;
 	resolveFileUrl: ResolveFileUrlHook;
-	resolveId: ResolveIdHook;
-	resolveImportMeta: ResolveImportMetaHook;
-	transform: TransformHook;
 	/** @deprecated Use `renderChunk` instead */
 	transformBundle: TransformChunkHook;
 	/** @deprecated Use `renderChunk` instead */
 	transformChunk: TransformChunkHook;
-	watchChange: (id: string) => void;
 	writeBundle: (this: PluginContext, bundle: OutputBundle) => void | Promise<void>;
 }
 
-export interface Plugin extends Partial<PluginHooks> {
-	banner?: AddonHook;
-	cacheKey?: string;
-	footer?: AddonHook;
-	intro?: AddonHook;
+export interface PluginHooks extends OutputPluginHooks {
+	buildEnd: (this: PluginContext, err?: Error) => Promise<void> | void;
+	buildStart: (this: PluginContext, options: InputOptions) => Promise<void> | void;
+	load: LoadHook;
+	options: (this: MinimalPluginContext, options: InputOptions) => InputOptions | null | undefined;
+	resolveId: ResolveIdHook;
+	resolveImportMeta: ResolveImportMetaHook;
+	transform: TransformHook;
+	watchChange: (id: string) => void;
+}
+
+interface OutputPluginValueHooks {
+	banner: AddonHook;
+	cacheKey: string;
+	footer: AddonHook;
+	intro: AddonHook;
+	outro: AddonHook;
+}
+
+export interface Plugin extends Partial<PluginHooks>, Partial<OutputPluginValueHooks> {
+	name: string;
+}
+
+export interface OutputPlugin extends Partial<OutputPluginHooks>, Partial<OutputPluginValueHooks> {
 	name: string;
-	outro?: AddonHook;
 }
 
 export interface TreeshakingOptions {
@@ -475,6 +489,7 @@ export interface OutputOptions {
 	noConflict?: boolean;
 	outro?: string | (() => string | Promise<string>);
 	paths?: OptionsPaths;
+	plugins?: OutputPlugin[];
 	preferConst?: boolean;
 	sourcemap?: boolean | 'inline' | 'hidden';
 	sourcemapExcludeSources?: boolean;
@@ -553,6 +568,7 @@ export interface RollupBuild {
 }
 
 export interface RollupOptions extends InputOptions {
+	// This is included for compatibility with config files but ignored by rollup.rollup
 	output?: OutputOptions | OutputOptions[];
 }
 

test/function/samples/options-in-renderstart/_config.js

@@ -0,0 +1,33 @@
+const assert = require('assert');
+const checkedOptions = [];
+
+module.exports = {
+	description: 'makes input and output options available in renderStart',
+	options: {
+		context: 'global',
+		plugins: {
+			name: 'input-plugin',
+			renderStart(outputOptions, inputOptions) {
+				checkedOptions.push('input-plugin', outputOptions.format, inputOptions.context);
+			}
+		},
+		output: {
+			plugins: {
+				name: 'output-plugin',
+				renderStart(outputOptions, inputOptions) {
+					checkedOptions.push('output-plugin', outputOptions.format, inputOptions.context);
+				}
+			}
+		}
+	},
+	exports: () => {
+		assert.deepStrictEqual(checkedOptions, [
+			'output-plugin',
+			'cjs',
+			'global',
+			'input-plugin',
+			'cjs',
+			'global'
+		]);
+	}
+};

test/function/samples/options-in-renderstart/main.js

@@ -0,0 +1 @@
+assert.ok(this);