New package: 'hard-source-webpack-plugin' (#26972)

* Add definitions to 'hard-source-webpack-plugin' package

* Run 'npm test'

types/hard-source-webpack-plugin/hard-source-webpack-plugin-tests.ts

@@ -0,0 +1,8 @@
+import * as HardSourceWebpackPlugin from 'hard-source-webpack-plugin';
+
+new HardSourceWebpackPlugin({
+    info: {
+        level: 'debug',
+        mode: 'test',
+    }
+});

types/hard-source-webpack-plugin/index.d.ts

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+// Type definitions for hard-source-webpack-plugin 0.9
+// Project: https://github.com/mzgoddard/hard-source-webpack-plugin#readme
+// Definitions by: woitechen <https://github.com/woitechen>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
+
+import * as webpack from 'webpack';
+
+declare class hard_source_webpack_plugin {
+    constructor(options?: Options);
+    apply(...args: any[]): void;
+}
+
+declare namespace hard_source_webpack_plugin { }
+
+interface Options {
+    cacheDirectory?: string;
+    configHash?: (webpackConfig?: webpack.Configuration) => string;
+    environmentHash?: {
+        root: string;
+        directories: string[];
+        files: string[];
+    };
+    info?: {
+        mode: 'none' | 'test';
+        level: 'debug' | 'log' | 'info' | 'warn' | 'error';
+    };
+    cachePrune?: {
+        maxAge: number;
+        sizeThreshold: number;
+    };
+}
+
+export = hard_source_webpack_plugin;

types/hard-source-webpack-plugin/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "hard-source-webpack-plugin-tests.ts"
+    ]
+}

types/hard-source-webpack-plugin/tslint.json

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