Update: Support new alpha of gulp 4 to handle new undertaker tree ret…

…urn value

lib/versioned/^4.0.0-alpha.1/index.js

@@ -10,9 +10,9 @@ var tildify = require('tildify');
 var exit = require('../../shared/exit');
 
 var logTasks = require('../../shared/log/tasks');
-var logEvents = require('./log/events');
-var logSyncTask = require('./log/syncTask');
-var logTasksSimple = require('./log/tasksSimple');
+var logEvents = require('../^4.0.0-alpha.2/log/events');
+var logSyncTask = require('../^4.0.0-alpha.2/log/syncTask');
+var logTasksSimple = require('../^4.0.0-alpha.2/log/tasksSimple');
 
 function execute(opts, env) {
 

lib/versioned/^4.0.0-alpha.2/index.js

@@ -0,0 +1,79 @@
+'use strict';
+
+var fs = require('fs');
+
+var log = require('gulplog');
+var chalk = require('chalk');
+var stdout = require('mute-stdout');
+var tildify = require('tildify');
+
+var exit = require('../../shared/exit');
+
+var logTasks = require('../../shared/log/tasks');
+var logEvents = require('./log/events');
+var logSyncTask = require('./log/syncTask');
+var logTasksSimple = require('./log/tasksSimple');
+
+function execute(opts, env) {
+
+  var tasks = opts._;
+  var toRun = tasks.length ? tasks : ['default'];
+
+  if (opts.tasksSimple || opts.tasks || opts.tasksJson) {
+    // Mute stdout if we are listing tasks
+    stdout.mute();
+  }
+
+  var gulpInst = require(env.modulePath);
+  logEvents(gulpInst);
+  logSyncTask(gulpInst);
+
+  // This is what actually loads up the gulpfile
+  require(env.configPath);
+
+  // Always unmute stdout after gulpfile is required
+  stdout.unmute();
+
+  process.nextTick(function() {
+    var tree;
+
+    if (opts.tasksSimple) {
+      tree = gulpInst.tree();
+      return logTasksSimple(tree.nodes);
+    }
+    if (opts.tasks) {
+      tree = gulpInst.tree({ deep: true });
+      tree.label = 'Tasks for ' + chalk.magenta(tildify(env.configPath));
+
+      return logTasks(tree, function(task) {
+        return gulpInst.task(task).description;
+      });
+    }
+    if (opts.tasksJson) {
+      tree = gulpInst.tree({ deep: true });
+      tree.label = 'Tasks for ' + tildify(env.configPath);
+
+      var output = JSON.stringify(tree);
+
+      if (typeof opts.tasksJson === 'boolean' && opts.tasksJson) {
+        return console.log(output);
+      } else {
+        return fs.writeFileSync(opts.tasksJson, output, 'utf-8');
+      }
+    }
+    try {
+      log.info('Using gulpfile', chalk.magenta(tildify(env.configPath)));
+      gulpInst.parallel(toRun)(function(err) {
+        if (err) {
+          exit(1);
+        }
+      });
+    } catch (err) {
+      log.error(chalk.red(err.message));
+      log.error('To list available tasks, try running: gulp --tasks');
+      exit(1);
+    }
+  });
+}
+
+module.exports = execute;

test/expected/flags-tasks-json.json

@@ -1 +1 @@
-[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test2","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test3","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"described","type":"function","nodes":[]}]}]},{"label":"test4","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"errorFunction","type":"function","nodes":[]},{"label":"anon","type":"function","nodes":[]}]}]},{"label":"default","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test3","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"described","type":"function","nodes":[]}]}]},{"label":"noop","type":"function","nodes":[]}]}]}]
+{"label":"Tasks for {{path}}","nodes":[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test2","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test3","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"described","type":"function","nodes":[]}]}]},{"label":"test4","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"errorFunction","type":"function","nodes":[]},{"label":"anon","type":"function","nodes":[]}]}]},{"label":"default","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"test1","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"noop","type":"function","nodes":[]}]}]},{"label":"test3","type":"task","nodes":[{"label":"<series>","type":"function","nodes":[{"label":"described","type":"function","nodes":[]}]}]},{"label":"noop","type":"function","nodes":[]}]}]}]}

test/flags-tasks-json.js

@@ -1,6 +1,8 @@
 'use strict';
 
 var fs = require('fs-extra');
+var path = require('path');
+var tildify = require('tildify');
 var lab = exports.lab = require('lab').script();
 var code = require('code');
 
@@ -9,11 +11,14 @@ var output = require('./expected/flags-tasks-json.json');
 
 lab.experiment('flag: --tasks-json', function() {
 
+  var outputString = JSON.stringify(output).replace(/{{path}}/, tildify(path.join(__dirname, 'fixtures/gulpfile.js')));
+  var expected = JSON.parse(outputString);
+
   lab.test('prints the task list with no args', function(done) {
     child.exec('node ' + __dirname + '/../bin/gulp.js --tasks-json --gulpfile "./test/fixtures/gulpfile.js" ', function(err, stdout) {
       stdout = stdout.replace(/\\/g, '/').split('\n');
       var parsedJson = JSON.parse(stdout[1]);
-      code.expect(parsedJson).to.deep.equal(output);
+      code.expect(parsedJson).to.deep.equal(expected);
       done(err);
     });
   });
@@ -27,7 +32,7 @@ lab.experiment('flag: --tasks-json', function() {
       child.exec('node ' + __dirname + '/../bin/gulp.js --tasks-json "../output/tasks.json" --gulpfile "./test/fixtures/gulpfile.js" ', function(err) {
         var file = fs.readFileSync(__dirname + '/output/tasks.json', 'utf8');
         var parsedJson = JSON.parse(file);
-        code.expect(parsedJson).to.deep.equal(output);
+        code.expect(parsedJson).to.deep.equal(expected);
         fs.removeSync(__dirname + '/output/');
         done(err);
       });