Add GitHub AutoPR branch cleanup script (#4904)

* Add GitHub AutoPR branch cleanup script

* Fix octokit breaking changes

* Remove TypeScript compilation from Travis CI

.scripts/github.ts

@@ -0,0 +1,85 @@
+/**
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See License.txt in the project root for
+ * license information.
+ */
+
+import Octokit, { PullRequestsListParams } from '@octokit/rest';
+import { exec as execWithCallback } from "child_process";
+
+const _repositoryOwner = "Azure";
+
+function _validatePersonalAccessToken(token: string): void {
+    if (!token) {
+        const text =
+            `Github personal access token was not found as a script parameter or as an
+        environmental variable. Please visit https://github.com/settings/tokens,
+        generate new token with "repo" scope and pass it with -token switch or set
+        it as environmental variable named SDK_GEN_GITHUB_TOKEN.`
+
+        console.log(text);
+    }
+}
+
+function getToken(): string {
+    const token: string = process.env.SDK_GEN_GITHUB_TOKEN || "";
+    _validatePersonalAccessToken(token);
+
+    return token;
+}
+
+function getAuthenticatedClient(): Octokit {
+    const octokit = new Octokit();
+    octokit.authenticate({ type: "token", token: getToken() });
+    return octokit;
+}
+
+async function exec(command: string): Promise<any> {
+    console.log(`Executing ${command}`);
+    return new Promise((resolve, reject) => {
+        execWithCallback(command, (error, stdout) => {
+            if (error) {
+                reject(error);
+            }
+
+            resolve(stdout);
+        });
+    });
+}
+
+async function cleanBranches() {
+    const octokit = getAuthenticatedClient();
+    const params: PullRequestsListParams = {
+        owner: _repositoryOwner,
+        repo: "azure-sdk-for-node",
+        state: "open"
+    }
+
+    let pullRequestsResponse = await octokit.pullRequests.list(params);
+
+    do {
+        const autoPullRequests = pullRequestsResponse.data.filter(pr => pr.title.startsWith("[AutoPR")).map(pr => pr.head.ref);
+        console.log(JSON.stringify(autoPullRequests, undefined, "  "));
+        console.log(JSON.stringify(autoPullRequests.length, undefined, "  "));
+
+        for (const branch of autoPullRequests) {
+            try {
+                await exec(`git push origin :${branch}`);
+            } catch (err) {
+                console.log(`Branch ${branch} doesn't exist. Skipping. Error: [${err}]`);
+            }
+        }
+
+        if (octokit.hasFirstPage(pullRequestsResponse)) {
+            pullRequestsResponse = await octokit.getNextPage(pullRequestsResponse);
+        } else {
+            break;
+        }
+    } while (true);
+}
+
+try {
+    cleanBranches();
+} catch (err) {
+    console.error(err);
+}

.travis.yml

@@ -3,7 +3,3 @@ sudo: false
 node_js:
   - "8"
   - "6"
-
-before_script:
-  - npm i -g typescript
-  - tsc

package.json

@@ -37,6 +37,7 @@
     "uuid": "^3.0.1"
   },
   "devDependencies": {
+    "@octokit/rest": "^15.17.0",
     "@types/request": "^2.0.3",
     "adal-node": "^0.1.22",
     "async": "^2.5.0",
@@ -80,6 +81,8 @@
     "random-js": "1.0.4",
     "should": "^8.3.1",
     "sinon": "^2.1.0",
+    "tslib": "^1.9.3",
+    "typescript": "^3.1.6",
     "xmlbuilder": "0.4.3",
     "yargs": "3.29.0"
   },

tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2015",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
+    "lib": ["es2017"],                             /* Specify library files to be included in the compilation. */
+    "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    "strictNullChecks": true,              /* Enable strict null checks. */
+    "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+    "noUnusedLocals": true,                /* Report errors on unused locals. */
+    "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+  }
+}