[ADF-579] - move license check in webpack (#1859)

* move license check in webpack

* fix exclusion check header

* different headers

demo-shell-ng2/config/loaders/license-check.js

@@ -0,0 +1,67 @@
+var path = require('path');
+var loaderUtils = require('loader-utils');
+var fs = require('fs');
+
+var licenseFileUtf8Store = undefined;
+
+function readLicenseHeaderFile(licenseFilePath) {
+    if (licenseFileUtf8Store) {
+        return licenseFileUtf8Store;
+    }
+
+    if (fs.existsSync(licenseFilePath)) {
+        licenseFileUtf8Store = fs.readFileSync(licenseFilePath, 'utf8').split(/\r?\n/);
+        return licenseFileUtf8Store;
+    }
+
+    throw new Error('The license header file path is wrong ' + licenseFilePath);
+}
+
+function isFileEmpty(fileContents) {
+    return fileContents.toString('utf8').trim() === '';
+}
+
+function readCurrentFile(fileContent) {
+    return fileContent.toString('utf8').split(/\r?\n/);
+}
+
+function isLicenseHeaderPresent(currentFileContent, licenseFilePath) {
+    if (!isFileEmpty(currentFileContent)) {
+        var currentFileUtf8 = readCurrentFile(currentFileContent),
+            licenseFileUtf8 = readLicenseHeaderFile(licenseFilePath);
+            skipStrict = 0;
+
+        if(currentFileUtf8[0] === '"use strict";' ) {
+            skipStrict = 1;
+        }
+
+        for (var i = skipStrict; i < licenseFileUtf8.length; i++) {
+            if (currentFileUtf8[i + skipStrict] !== licenseFileUtf8[i]) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+function report(hasHeader, emitter, filename) {
+  if (hasHeader) return;
+  emitter('Missing license header file : ' + filename);
+}
+
+function licenseCheck(webpackInstance, input, options) {
+    var isLicensePresent =  isLicenseHeaderPresent(input, options.licenseFile);
+
+    var emitter = options.emitErrors ? webpackInstance.emitError : webpackInstance.emitWarning;
+
+    report(isLicensePresent, emitter, webpackInstance.resourcePath);
+}
+
+module.exports = function(input, map) {
+  this.cacheable && this.cacheable();
+  var callback = this.async();
+
+  var options = loaderUtils.getOptions(this);
+  licenseCheck(this, input, options);
+  callback(null, input, map);
+};

demo-shell-ng2/config/webpack.common.js

@@ -29,6 +29,13 @@ module.exports = {
         'vendor': './app/vendor.ts',
         'app': './app/main.ts'
     },
+
+    resolveLoader: {
+        alias: {
+            "license-check": path.resolve(__dirname, "./loaders/license-check")
+        }
+    },
+
     module: {
         rules: [
             {
@@ -84,6 +91,17 @@ module.exports = {
             {
                 test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/,
                 loader: 'file-loader?name=assets/[name].[hash].[ext]'
+            },
+            {
+                enforce: 'pre',
+                test: /\.ts$/,
+                loader: 'license-check',
+                include: helpers.root('app'),
+                options: {
+                    emitErrors: true,
+                    licenseFile: path.resolve(__dirname, '../assets/license_header.txt')
+                },
+                exclude: [/node_modules/, /bundles/, /dist/, /demo/],
             }
         ]
     },

demo-shell-ng2/package.json

@@ -4,14 +4,13 @@
   "version": "1.4.0",
   "author": "Alfresco Software, Ltd.",
   "scripts": {
-    "build": "rimraf dist && npm run licensecheck && webpack --config config/webpack.prod.js --progress --profile --bail",
+    "build": "rimraf dist && webpack --config config/webpack.prod.js --progress --profile --bail",
     "start": "npm run server-versions && node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js  --progress",
     "test": "rimraf coverage && karma start --single-run",
     "clean": "npm run clean-build  && rimraf dist node_modules typings dist",
     "clean-build": "rimraf 'app/{,**/}**.js' 'app/{,**/}**.js.map' 'app/{,**/}**.d.ts'",
     "server-versions": "rimraf versions.json && npm list --depth=0 --json=true --prod=true > versions.json  || exit 0",
-    "aws": "node app.js",
-    "licensecheck": "license-check"
+    "aws": "node app.js"
   },
   "repository": {
     "type": "git",
@@ -118,7 +117,6 @@
     "karma-remap-istanbul": "^0.6.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^2.0.2",
-    "license-check": "1.1.5",
     "null-loader": "^0.1.1",
     "to-string-loader": "^1.1.4",
     "raw-loader": "^0.5.1",
@@ -134,15 +132,5 @@
     "webpack": "^2.2.1",
     "webpack-dev-server": "^2.3.0",
     "webpack-merge": "^2.6.1"
-  },
-  "license-check-config": {
-    "src": [
-      "./app/**/*.js",
-      "!./app/js/*.js"
-    ],
-    "path": "assets/license_header.txt",
-    "blocking": true,
-    "logInfo": false,
-    "logError": true
   }
 }