maintenance: add auto-updating of npm packages

package.json

@@ -6,10 +6,12 @@
     "async": "^1.4.2",
     "coveralls": "^2.11.2",
     "create-error-class": "^3.0.2",
+    "david": "^9.0.0",
     "dox": "0.8.1",
     "extend": "^3.0.0",
     "glob": "^5.0.9",
     "globby": "^3.0.1",
+    "is": "^3.1.0",
     "istanbul": "^0.3.5",
     "jscs": "^2.1.1",
     "jshint": "^2.9.1",
@@ -18,6 +20,7 @@
     "mitm": "^1.1.0",
     "mkdirp": "^0.5.1",
     "mocha": "^2.5.3",
+    "package-json": "^2.4.0",
     "propprop": "^0.3.1",
     "proxyquire": "^1.7.10",
     "request": "^2.70.0",
@@ -28,6 +31,7 @@
   },
   "scripts": {
     "postinstall": "node ./scripts/install.js",
+    "update-deps": "node ./scripts/update-deps.js",
     "docs": "node ./scripts/docs/packages.js",
     "bundle": "node ./scripts/docs/bundle.js",
     "lint": "jshint scripts/ packages/ system-test/ test/ && jscs packages/ system-test/ test/",

packages/compute/package.json

@@ -52,7 +52,7 @@
   "dependencies": {
     "@google-cloud/common": "^0.5.0",
     "arrify": "^1.0.0",
-    "async": "^1.4.2",
+    "async": "^1.5.2",
     "create-error-class": "^2.0.1",
     "extend": "^3.0.0",
     "gce-images": "^0.3.0",

packages/dns/package.json

@@ -52,7 +52,7 @@
   "dependencies": {
     "@google-cloud/common": "^0.5.0",
     "arrify": "^1.0.0",
-    "dns-zonefile": "0.1.18",
+    "dns-zonefile": "^0.1.18",
     "extend": "^3.0.0",
     "is": "^3.0.1",
     "methmeth": "^1.0.0",

packages/storage/package.json

@@ -52,7 +52,7 @@
   "dependencies": {
     "@google-cloud/common": "^0.5.0",
     "arrify": "^1.0.0",
-    "async": "^1.4.2",
+    "async": "^1.5.2",
     "concat-stream": "^1.5.0",
     "create-error-class": "^2.0.1",
     "duplexify": "^3.2.0",

packages/vision/package.json

@@ -53,7 +53,7 @@
     "@google-cloud/common": "^0.5.0",
     "arguejs": "^0.2.3",
     "arrify": "^1.0.0",
-    "async": "^1.4.2",
+    "async": "^1.5.2",
     "extend": "^3.0.0",
     "google-gax": "^0.6.0",
     "google-proto-files": "^0.7.0",

scripts/update-deps.js

@@ -0,0 +1,115 @@
+/*!
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+var async = require('async');
+var david = require('david');
+var glob = require('globby');
+var is = require('is');
+var packageJson = require('package-json');
+var path = require('path');
+var prop = require('propprop');
+var semver = require('semver');
+
+require('shelljs/global');
+
+var MIN_SUPPORTED_NODE_VERSION =
+  require('../package.json').engines.node.replace(/^\D*/, '');
+
+function updatePackage(pkg, callback) {
+  console.log(pkg.depsToUpdate)
+
+  if (!is.empty(pkg.depsToUpdate)) {
+    exec('npm install --save ' + pkg.depsToUpdate.map(prop('name')).join(' '), {
+      cwd: pkg.cwd
+    });
+  }
+
+  callback();
+}
+
+function shouldUpdateDependency(dependency, callback) {
+  packageJson(dependency.name, dependency.stable).then(function(json) {
+    var minCompatibleNodeVersion = json.engines && json.engines.node;
+
+    if (!minCompatibleNodeVersion) {
+      callback(true);
+      return;
+    }
+
+    var isCompatible = semver.satisfies(
+      MIN_SUPPORTED_NODE_VERSION,
+      minCompatibleNodeVersion
+    );
+
+    callback(isCompatible);
+  });
+}
+
+function populateDepsToUpdate(pkg, callback) {
+  david.getUpdatedDependencies(pkg.json, function(err, updatedDeps) {
+    if (err) {
+      callback(err);
+      return;
+    }
+
+    if (is.empty(updatedDeps)) {
+      callback();
+      return;
+    }
+
+    for (var updatedDep in updatedDeps) {
+      updatedDeps[updatedDep].name = updatedDep;
+    }
+
+    async.filter(updatedDeps, shouldUpdateDependency, function(deps) {
+      if (err) {
+        callback(err);
+        return;
+      }
+
+      pkg.depsToUpdate = deps;
+
+      callback();
+    });
+  });
+}
+
+var pkgs = glob.sync('packages/*/package.json')
+  .map(function(packageJsonPath) {
+    return {
+      cwd: path.dirname(packageJsonPath),
+      json: require(path.join('..', packageJsonPath)),
+      depsToUpdate: []
+    };
+  });
+
+async.eachLimit(pkgs, 5, populateDepsToUpdate, function(err) {
+  if (err) {
+    console.error('Could not update dependencies', err);
+    return;
+  }
+
+  async.eachLimit(pkgs, 5, updatePackage, function(err) {
+    if (err) {
+      console.error('Could not update dependencies', err);
+      return;
+    }
+
+    console.log('Dependencies updated!');
+  });
+});