feat(minify): new definition (#47290)

- definition file
- tests

https://github.com/coderaiser/minify

Thanks!

types/minify/index.d.ts

@@ -0,0 +1,46 @@
+// Type definitions for minify 5.1
+// Project: http://coderaiser.github.io/minify
+// Definitions by: Piotr Błażejewicz <https://github.com/peterblazejewicz>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+import htmlMinifier = require('html-minifier');
+import cleanCSS = require('clean-css');
+import terser = require('terser');
+
+/**
+ * A minifier of js, css, html and img files.
+ * @async
+ */
+declare function minify(name: string, options?: minify.Options): Promise<string>;
+
+declare namespace minify {
+    /**
+     * Full documentation for options that each file type accepts
+     * can be found on the pages of the libraries used by minify to process the files
+     */
+    interface Options {
+        /**
+         * @see {@link https://github.com/kangax/html-minifier}
+         */
+        html?: htmlMinifier.Options;
+        /**
+         * @see {@link https://github.com/jakubpawlowicz/clean-css}
+         */
+        css?: cleanCSS.Options;
+        /**
+         * @see {@link https://github.com/terser/terser}
+         */
+        js?: terser.MinifyOptions;
+        /**
+         * @see {@link https://github.com/Filirom1/css-base64-images}
+         */
+        img?: {
+            /**
+             * bigger images are not base64 in the CSS
+             * @default 4096
+             */
+            maxSize?: number;
+        };
+    }
+}
+
+export = minify;

types/minify/minify-tests.ts

@@ -0,0 +1,25 @@
+import minify = require('minify');
+import { Options } from 'minify';
+
+const options: Options = {
+    html: {
+        removeAttributeQuotes: false,
+        removeOptionalTags: false,
+    },
+    css: {
+        compatibility: '*',
+    },
+    js: {
+        ecma: 5,
+    },
+    img: {
+        maxSize: 4096,
+    },
+};
+
+minify('./client.js'); // $ExpectType Promise<string>
+minify('./client.js', options); // $ExpectType Promise<string>
+
+(async () => {
+    const data = await minify('./client.js', options); // $ExpectType string
+})();

types/minify/package.json

@@ -0,0 +1,6 @@
+{
+    "private": true,
+    "dependencies": {
+        "terser": "^5.3.0"
+    }
+}

types/minify/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "minify-tests.ts"
+    ]
+}

types/minify/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }