Revert "removed unused code"

This reverts commit e79a71c6dc.

script/lib/update-dependency/git.js

@@ -16,10 +16,10 @@ try {
 module.exports = {
   switchToMaster: async function() {
     const { current } = await git.branch();
-    if (current !== 'master') {
-      await git.checkout('master');
+    if (current !== 'dependency-automation') {
+      await git.checkout('dependency-automation');
     }
-    await git.pull('origin', 'master');
+    // await git.pull('origin', 'dependency-automation');
   },
   makeBranch: async function(dependency) {
     const newBranch = `${dependency.moduleName}-${dependency.latest}`;

script/lib/update-dependency/util.js

@@ -1,5 +1,6 @@
 const fs = require('fs');
 const path = require('path');
+const execa = require('execa');
 const { repositoryRootPath } = require('../../config');
 const packageJsonFilePath = path.join(repositoryRootPath, 'package.json');
 const packageJSON = require(packageJsonFilePath);
@@ -63,5 +64,15 @@ module.exports = {
       );
     });
   },
+  runApmInstall: async function() {
+    console.log('apm install');
+
+    return execa('apm', ['install'], { cwd: repositoryRootPath })
+      .then(result => result.failed)
+      .catch(ex => {
+        console.log(`failed to install module`);
+        return false;
+      });
+  },
   sleep: ms => new Promise(resolve => setTimeout(resolve, ms))
 };

script/package.json

@@ -24,6 +24,7 @@
     "eslint-plugin-prettier": "^3.0.1",
     "eslint-plugin-promise": "^4.1.1",
     "eslint-plugin-standard": "^4.0.0",
+    "execa": "^4.0.2",
     "fs-admin": "^0.12.0",
     "fs-extra": "0.30.0",
     "glob": "7.0.3",