StackGenVis/frontend/node_modules/base-task

base-task

base plugin that provides a very thin wrapper around https://github.com/doowb/composer for adding task methods to your application.

You might also be interested in base-watch.

Install

Install with npm:

$ npm install --save base-task

Usage

var Base = require('base');
var tasks = require('base-task');

var base = new Base();
// Since some applications have multiple types of plugins, you must 
// set "isApp" on the instance you want base-task to run on 
base.isApp = true;
base.use(tasks());

/**
 * Define tasks
 */

base.task('foo', function(cb) {
  console.log('this is foo!');
  cb();
});
base.task('bar', function(cb) {
  console.log('this is bar!');
  cb();
});

/**
 * Build tasks
 */

base.build(['foo', 'bar'], function(err) {
  // this is foo!
  // this is bar!
  console.log('done!');
});

See the composer documentation for more details, or to create bug reports related to running or registering tasks.

API

.task

Register a task

Params

• name {String}: Task name to register (tasks are cached on app.tasks)
• dependencies {String|Array|Function}: String, list or array of tasks.
• callback {Function}: Function to be called when the task is executed. Task functions should either return a stream or call the callback to let composer know when the task is finished.

Examples

Register a task.

app.task('default', function() {
  // return the stream to signal "done"
  return app.src('pages/*.hbs')
    .pipe(app.dest('dist'));
});

Register a task with dependencies (other tasks to run before executing the task):

app.task('site', ['styles'], function() {
  return app.src('pages/*.hbs')
    .pipe(app.dest('dist'));
});

app.task('default', ['site']);

Get a task

var task = app.task('site');

.build

Run a task or array of tasks.

Example

app.build('default', function(err, results) {
  if (err) {
    console.error(err);
    return;
  }
  console.log(results);
});

.series

Compose task or list of tasks into a single function that runs the tasks in series.

Params

• tasks {String|Array|Function}: List of tasks by name, function, or array of names/functions.
• returns {Function}: Composed function that may take a callback function.

Example

app.task('foo', function(cb) {
  console.log('this is foo');
  cb();
});

var fn = app.series('foo', function(cb) {
  console.log('this is bar');
  cb();
});

fn(function(err) {
  if (err) return console.error(err);
  console.log('finished');
});
//=> this is foo
//=> this is bar
//=> finished

.parallel

Compose task or list of tasks into a single function that runs the tasks in parallel.

Params

• tasks {String|Array|Function}: List of tasks by name, function, or array of names/functions.
• returns {Function}: Composed function that may take a callback function.

Example

app.task('foo', function(cb) {
  setTimeout(function() {
    console.log('this is foo');
    cb();
  }, 500);
});

var fn = app.parallel('foo', function(cb) {
  console.log('this is bar');
  cb();
});

fn(function(err) {
  if (err) return console.error(err);
  console.log('finished');
});
//=> this is bar
//=> this is foo
//=> finished

Events

The following events are emitted by composer. See the composer docs for more details

on.task

Emitted when a task is register, starting and finished.

app.on('task', function(task) {
  console.log(task.status);
  //=> 'register'
});

on.build

Emitted when a build is starting and finished.

app.on('build', function(build) {
  console.log(build.status);
  //=> 'starting'
});

History

v0.3.0

• Bumped composer to v0.11.0, so the .watch method is no longer included by default. To add .watch, use the base-watch plugin.

About

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Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Contributors

Commits	Contributor
43	jonschlinkert
6	doowb
2	davequick

Building docs

(This document was generated by verb-generate-readme (a verb generator), please don't edit the readme directly. Any changes to the readme must be made in .verb.md.)

To generate the readme and API documentation with verb:

$ npm install -g verb verb-generate-readme && verb

Running tests

Install dev dependencies:

$ npm install -d && npm test

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2016, Jon Schlinkert. Released under the MIT license.

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This file was generated by verb-generate-readme, v0.2.0, on October 22, 2016.