Add typescript support to asset compilation.

package.json

@@ -8,17 +8,20 @@
     "clipboard": "1.5.16",
     "handlebars": "4.0.6",
     "i18next": "3.4.4",
-    "i18next-parser": "0.11.1",
-    "i18next-xhr-backend": "0.5.4",
     "i18next-browser-languagedetector": "0.3.0",
     "i18next-localstorage-cache": "0.3.0",
+    "i18next-parser": "0.11.1",
+    "i18next-xhr-backend": "0.5.4",
     "jquery": "2.2.3",
     "jquery-validation": "1.16.0",
     "katex": "0.7.1",
     "moment": "2.18.1",
     "moment-timezone": "0.5.12",
     "plotly.js": "1.19.2",
+    "source-map-loader": "0.2.1",
     "string.prototype.codepointat": "0.2.0",
+    "ts-loader": "2.1.0",
+    "typescript": "2.3.3",
     "underscore": "1.8.3",
     "webpack": "2.5.1",
     "webpack-bundle-tracker": "0.2.0",
@@ -36,6 +39,7 @@
     "nwmatcher": "1.3.6",
     "phantomjs-prebuilt": "2.1.14",
     "svgo": "0.7.2",
+    "tslint": "5.3.2",
     "webpack-dev-server": "2.4.1",
     "xmlhttprequest": "1.5.0"
   },

static/ts/tsconfig.json

@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "outDir": "../webpack-bundles/",
+    "sourceMap": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "removeComments": false,
+    "noImplicitAny": false,
+    "noFallthroughCasesInSwitch": true,
+    "suppressImplicitAnyIndexErrors": true,
+    "newLine": "lf",
+    "module": "commonjs",
+    "target": "es5",
+    "jsx": "react",
+    "allowJs": false
+  },
+  "rootDir": "../.."
+}

static/ts/tslint.json

@@ -0,0 +1,9 @@
+{
+    "defaultSeverity": "error",
+    "extends": [
+        "tslint:recommended"
+    ],
+    "jsRules": {},
+    "rules": {},
+    "rulesDirectory": []
+}

tools/lint

@@ -700,6 +700,8 @@ def run():
         external_linter('add_class', ['tools/find-add-class'])
         external_linter('css', ['tools/check-css'], ['css'])
         external_linter('eslint', ['node', 'node_modules/.bin/eslint', '--quiet'], ['js'])
+        external_linter('tslint', ['node', 'node_modules/.bin/tslint', '-c',
+                                   'static/ts/tslint.json'], ['ts'])
         external_linter('puppet', ['puppet', 'parser', 'validate'], ['pp'])
         external_linter('templates', ['tools/check-templates'], ['handlebars', 'html'])
         external_linter('urls', ['tools/check-urls'])

tools/webpack.config.js

@@ -6,10 +6,33 @@ module.exports =  {
     entry: assets,
     module: {
         noParse: /(min)\.js/,
+        rules: [
+            // Run the typescript compilier on .ts files before webpack
+            {
+                test: /\.tsx?$/,
+                loader: 'ts-loader',
+            },
+            // This loads and transforms sourcemap files from other compiliers.
+            // The typescript comilier will generate a sourcemap and source-map-loaded will output
+            // the correct sourcemap from that.
+            {
+                enforce: 'pre',
+                test: /\.js$/,
+                loader: "source-map-loader",
+            },
+            {
+                enforce: 'pre',
+                test: /\.tsx?$/,
+                use: "source-map-loader",
+            },
+        ],
    },
     output: {
         path: path.resolve(__dirname, '../static/webpack-bundles'),
         filename: '[name].js',
     },
     plugins: [],
+    resolve: {
+        extensions: [".tsx", ".ts", ".js", ".json"],
+    },
 };

version.py

@@ -1,2 +1,2 @@
 ZULIP_VERSION = "1.5.1+git"
-PROVISION_VERSION = '5.2'
+PROVISION_VERSION = '5.3'