feat: Add versioned handler for gulp v5

lib/versioned/^5.0.0/format-error.js

@@ -0,0 +1,24 @@
+'use strict';
+
+// Format orchestrator errors
+/* istanbul ignore next */
+function formatError(e) {
+  if (!e.error) {
+    return e.message;
+  }
+
+  // PluginError
+  if (typeof e.error.showStack === 'boolean') {
+    return e.error.toString();
+  }
+
+  // Normal error
+  if (e.error.stack) {
+    return e.error.stack;
+  }
+
+  // Unknown (string, number, etc.)
+  return new Error(String(e.error)).stack;
+}
+
+module.exports = formatError;

lib/versioned/^5.0.0/index.js

@@ -0,0 +1,89 @@
+'use strict';
+
+var fs = require('fs');
+
+var log = require('gulplog');
+var stdout = require('mute-stdout');
+var messages = require('@gulpjs/messages');
+
+var exit = require('../../shared/exit');
+
+var logTasks = require('../../shared/log/tasks');
+var logEvents = require('./log/events');
+var logSyncTask = require('./log/sync-task');
+var logTasksSimple = require('./log/tasks-simple');
+var registerExports = require('../../shared/register-exports');
+
+var copyTree = require('../../shared/log/copy-tree');
+var getTask = require('./log/get-task');
+var requireOrImport = require('../../shared/require-or-import');
+
+function execute(env, opts, translate) {
+  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, opts);
+
+  // This is what actually loads up the gulpfile
+  requireOrImport(env.configPath, function(err, exported) {
+    // Before import(), if require() failed we got an unhandled exception on the module level.
+    // So console.error() & exit() were added here to mimic the old behavior as close as possible.
+    if (err) {
+      console.error(err);
+      exit(1);
+    }
+
+    registerExports(gulpInst, exported);
+
+    // Always unmute stdout after gulpfile is required
+    stdout.unmute();
+
+    var tree;
+    if (opts.tasksSimple) {
+      tree = gulpInst.tree();
+      return logTasksSimple(tree.nodes);
+    }
+    if (opts.tasks) {
+      tree = gulpInst.tree({ deep: true });
+      tree.label = translate.message({ tag: messages.DESCRIPTION, path: env.configPath });
+
+      return logTasks(tree, opts, getTask(gulpInst), translate);
+    }
+    if (opts.tasksJson) {
+      tree = gulpInst.tree({ deep: true });
+      tree.label = translate.message({ tag: messages.DESCRIPTION, path: env.configPath });
+
+      var output = JSON.stringify(copyTree(tree, opts));
+
+      if (typeof opts.tasksJson === 'boolean' && opts.tasksJson) {
+        return console.log(output);
+      }
+      return fs.writeFileSync(opts.tasksJson, output, 'utf-8');
+    }
+    try {
+      log.info({ tag: messages.GULPFILE, path: env.configPath });
+      var runMethod = opts.series ? 'series' : 'parallel';
+      gulpInst[runMethod](toRun)(function(err) {
+        if (err) {
+          exit(1);
+        }
+      });
+    } catch (err) {
+      if (err.task) {
+        log.error({ tag: messages.TASK_MISSING, task: err.task, similar: err.similar });
+      } else {
+        log.error({ tag: messages.EXEC_ERROR, message: err.message, error: err });
+      }
+      exit(1);
+    }
+  });
+}
+
+module.exports = execute;

lib/versioned/^5.0.0/log/events.js

@@ -0,0 +1,39 @@
+'use strict';
+
+var log = require('gulplog');
+var messages = require('@gulpjs/messages');
+
+var formatError = require('../format-error');
+
+// Wire up logging events
+function logEvents(gulpInst) {
+
+  var loggedErrors = [];
+
+  gulpInst.on('start', function(evt) {
+    /* istanbul ignore next */
+    // TODO: batch these
+    // so when 5 tasks start at once it only logs one time with all 5
+    var level = evt.branch ? 'debug' : 'info';
+    log[level]({ tag: messages.TASK_START, task: evt.name });
+  });
+
+  gulpInst.on('stop', function(evt) {
+    /* istanbul ignore next */
+    var level = evt.branch ? 'debug' : 'info';
+    log[level]({ tag: messages.TASK_STOP, task: evt.name, duration: evt.duration });
+  });
+
+  gulpInst.on('error', function(evt) {
+    var level = evt.branch ? 'debug' : 'error';
+    log[level]({ tag: messages.TASK_FAILURE, task: evt.name, duration: evt.duration });
+
+    // If we haven't logged this before, log it and add to list
+    if (loggedErrors.indexOf(evt.error) === -1) {
+      log.error({ tag: messages.TASK_ERROR, message: formatError(evt) });
+      loggedErrors.push(evt.error);
+    }
+  });
+}
+
+module.exports = logEvents;

lib/versioned/^5.0.0/log/get-task.js

@@ -0,0 +1,43 @@
+'use strict';
+
+var isObject = require('../../../shared/is-object');
+
+function getTask(gulpInst) {
+  return function(name) {
+    var task = gulpInst.task(name);
+    return {
+      description: getDescription(task),
+      flags: getFlags(task),
+    };
+  };
+}
+
+function getDescription(task) {
+  if (typeof task.description === 'string') {
+    return task.description;
+  }
+  /* istanbul ignore else */
+  if (typeof task.unwrap === 'function') {
+    var origFn = task.unwrap();
+    if (typeof origFn.description === 'string') {
+      return origFn.description;
+    }
+  }
+  return undefined;
+}
+
+function getFlags(task) {
+  if (isObject(task.flags)) {
+    return task.flags;
+  }
+  /* istanbul ignore else */
+  if (typeof task.unwrap === 'function') {
+    var origFn = task.unwrap();
+    if (isObject(origFn.flags)) {
+      return origFn.flags;
+    }
+  }
+  return undefined;
+}
+
+module.exports = getTask;

lib/versioned/^5.0.0/log/sync-task.js

@@ -0,0 +1,46 @@
+'use strict';
+
+var log = require('gulplog');
+var messages = require('@gulpjs/messages');
+
+var tasks = {};
+
+function warn() {
+  var taskKeys = Object.keys(tasks);
+
+  if (!taskKeys.length) {
+    return;
+  }
+
+  var taskNames = taskKeys.map(function(key) {
+    return tasks[key];
+  }).join(', ');
+
+  process.exitCode = 1;
+
+  log.warn({ tag: messages.TASK_SYNC, tasks: taskNames });
+}
+
+function start(e) {
+  tasks[e.uid] = e.name;
+}
+
+function clear(e) {
+  delete tasks[e.uid];
+}
+
+function clearAll() {
+  tasks = {};
+}
+
+function logSyncTask(gulpInst, opts) {
+
+  process.once('exit', warn);
+  gulpInst.on('start', start);
+  gulpInst.on('stop', clear);
+  // When not running in --continue mode, we need to clear everything on error to avoid
+  // false positives.
+  gulpInst.on('error', opts.continue ? clear : clearAll);
+}
+
+module.exports = logSyncTask;

lib/versioned/^5.0.0/log/tasks-simple.js

@@ -0,0 +1,7 @@
+'use strict';
+
+function logTasksSimple(nodes) {
+  console.log(nodes.join('\n').trim());
+}
+
+module.exports = logTasksSimple;