Async Functions Sample for Node v4.0.0

Author: rbuckton

.gitignore

@@ -187,4 +187,6 @@ FakesAssemblies/
 # LightSwitch generated files
 GeneratedArtifacts/
 _Pvt_Extensions/
-ModelManifest.xml
+ModelManifest.xml
+
+node_modules/

async/.gitignore

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+lib/
+.vscode/

async/README.md

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+# Async Functions
+
+*Async Functions* are functions that can suspend their execution to wait for the completion of an 
+asynchronous operation. This allows complex algorithms that require asynchronous control flow to
+be written sequentially.
+
+This sample uses *Async Functions* to query the GitHub API to view information about recent pull 
+requests.
+
+This sample requires a minimum of NodeJS v4.0.0. 
+
+**Fetch dependencies**
+```
+npm install
+```
+
+**Run**
+```
+npm test
+```
+
+**Environment variables**
+
+| Name              | Description                                                                 |
+|:------------------|:----------------------------------------------------------------------------|
+| GITHUB_TOKEN      | The Authentication token to use for GitHub API Requests. (Optional)         |
+| GITHUB_REPOSITORY | The GitHub repository to use for queries. (Default: "Microsoft/TypeScript") |

async/gulpfile.js

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+var gulp = require('gulp')
+  , sourcemaps = require('gulp-sourcemaps')
+  , ts = require('gulp-typescript')
+  , typescript = require('typescript')
+  , del = require('del')
+  , merge = require('merge2')
+  , path = require('path')
+  , spawn = require('child_process').spawn;
+
+var lib = {
+    project: ts.createProject('./src/lib/tsconfig.json', { typescript: typescript }),
+    bin: "./bin/ts-async-github-sample",
+    main: "./lib/github",
+    base: "./src/lib/",
+    dest: "./lib/",
+    src: ["./src/lib/**/*.ts"],
+    out: ["./lib/**/*"]
+};
+
+gulp.task("clean:lib", clean(lib));
+gulp.task("clean", ["clean:lib"]);
+gulp.task("build:lib", build(lib));
+gulp.task("build", ["build:lib"]);
+gulp.task("test", ["build"], test(lib));
+gulp.task("watch:lib", ["build:lib"], watch(src(lib), ["build:lib"]));
+gulp.task("watch", ["build", "test"], watch(src(lib), ["test"]));
+gulp.task("default", ["build"]);
+
+function src() {
+    return Array.from(arguments).reduce(function (ar, opts) { 
+        return ar.concat(opts.src); 
+    }, []);
+}
+
+function clean(opts) {
+    return function (done) {
+        del(opts.out, done);
+    };
+}
+
+function build(opts) {
+    return function () {
+        var tee = gulp
+            .src(opts.src, { base: opts.base })
+            .pipe(sourcemaps.init())
+            .pipe(ts(opts.project));
+        return merge([
+            tee.dts
+                .pipe(gulp.dest(opts.dest)),
+            tee.js
+                .pipe(sourcemaps.write('.', { includeContent: false, sourceRoot: path.relative(opts.dest, opts.base) }))
+                .pipe(gulp.dest(opts.dest))
+        ]);
+    };
+}
+
+function test(opts) {
+    return function (done) {
+        var args = [opts.bin];
+        console.log("Executing test...");
+        spawn(process.argv[0], args, { stdio: "inherit" }).on("exit", function (code) {
+            done(code !== 0 ? "Error executing script." : undefined);
+        });
+    };
+}
+
+function watch(src, tasks) {
+    return function () { 
+        return gulp.watch(src, tasks); 
+    }
+}

async/jsconfig.json

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+{
+    "compilerOptions": {
+        "target": "ES6"
+    }
+}

async/package.json

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+{
+  "name": "ts-node-github-async-sample",
+  "version": "1.0.0",
+  "description": "Sample for Async Functions in NodeJS v4.0.0",
+  "private": true,
+  "main": "lib/github.js",
+  "bin": {
+    "sample": "./bin/ts-async-github-sample"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "del": "^2.0.2",
+    "gulp": "^3.9.0",
+    "gulp-sourcemaps": "^1.5.2",
+    "gulp-typescript": "^2.9.0",
+    "merge2": "^0.3.6",
+    "typescript": "^1.7.0"
+  },
+  "scripts": {
+    "test": "./node_modules/.bin/gulp test"
+  },
+  "author": "Microsoft Corp.",
+  "license": "Apache-2.0",
+  "engines": {
+    "node": ">=4.0.0"
+  }
+}