New: Add the --verify flag (closes #535)

docs/CLI.md

@@ -10,6 +10,7 @@ gulp has very few flags to know about. All other flags are for tasks to use if n
 - `--cwd <dir path>` will manually set the CWD. The search for the gulpfile, as well as the relativity of all requires will be from here
 - `-T` or `--tasks` will display the task dependency tree for the loaded gulpfile
 - `--tasks-simple` will display a plaintext list of tasks for the loaded gulpfile
+- `--verify` will verify plugins referenced in project's package.json against the plugins black list 
 - `--color` will force gulp and gulp plugins to display colors even when no color support is detected
 - `--no-color` will force gulp and gulp plugins to not display colors even when color support is detected
 - `--silent` will disable all gulp logging

lib/blackList.js

@@ -0,0 +1,37 @@
+'use strict';
+
+var http = require('http');
+
+/**
+ * Given a collection of plugin names verifies this collection against
+ * the black-list. Invokes callback with an object:
+ * [plugin name]=>[black-listing reason]
+ * or undefined if none of the plugins to check is black-listed.
+ *
+ * @param pluginsToVerify - an array of plugin names to verify
+ * @param cb
+ */
+module.exports = function (pluginsToVerify, cb) {
+ http.get('http:https://gulpjs.com/plugins/blackList.json', function (res) {
+ var blackListJSONStr = '';
+
+ res.on('data', function (chunk) {
+ blackListJSONStr += chunk;
+ });
+
+ res.on('end', function () {
+ var blackList = JSON.parse(blackListJSONStr);
+ var result = pluginsToVerify.reduce(function(blackListed, pluginName) {
+ if (blackList[pluginName]) {
+ blackListed = blackListed || {};
+ blackListed[pluginName] = blackList[pluginName];
+ return blackListed;
+ }
+ });
+ cb(null, result);
+ });
+
+ }).on('error', function (e) {
+ cb(e);
+ });
+};

lib/verifyDependencies.js

@@ -0,0 +1,30 @@
+'use strict';
+
+var chalk = require('chalk');
+var gutil = require('gulp-util');
+var blackList = require('./blackList');
+var formatError = require('./formatError');
+
+module.exports = function verifyDependencies(depNames) {
+
+ blackList(Object.keys(depNames), function(err, blackListed) {
+ if (err) {
+ gutil.log(chalk.red('Error: failed to retrieve plugins black-list'));
+ gutil.log(formatError(err));
+ process.exit(1);
+ }
+
+ if (blackListed) {
+ gutil.log(chalk.red('Black-listed plugins found in this project:'));
+ for (var blDependency in blackListed) {
+ gutil.log(blDependency + ': ' + blackListed[blDependency]);
+ }
+ process.exit(1);
+ } else {
+ gutil.log(
+ chalk.green('There are no black-listed plugins in this project')
+ );
+ process.exit(0);
+ }
+ });
+};