base-generators
Advanced tools
Adds project-generator support to your
baseapplication.
You might also be interested in base-task.
(TOC generated by verb using markdown-toc)
Install with npm:
$ npm install --save base-generators
HEADS UP!
The .generateEach method has been deprecated. Use .generate instead.
var generators = require('base-generators');
var Base = require('base');
// register the plugin before instantiating, to make
// sure the plugin is called on all Generator instances
Base.use(generators());
var base = new Base();
All examples assume the following code is defined:
var Base = require('base');
var generators = require('base-generators');
Base.use(generators());
var base = new Base();
Tasks are exactly the same as gulp tasks, and are powered by bach and composer.
Register a task:
base.task('default', function(cb) {
// do stuff
cb();
});
Run a task:
base.build('default', function(err) {
if (err) throw err;
});
I heard you liked tasks, so I put some tasks in your tasks.
What's a generator?
Generators are functions that are registered by name, and are used to encapsulate and organize code, tasks, other generators, or sub-generators, in a sharable, publishable and easily re-usable way.
In case it helps, here are some live examples.
Register a generator:
base.register('foo', function(app, base) {
// `app` is the generator's "private" instance
// `base` is a "shared" instance, accessible by all generators
});
Get a generator:
var foo = base.generator('foo');
Register tasks in a generator:
base.register('foo', function(app, base) {
app.task('default', function() {});
app.task('one', function() {});
app.task('two', function() {});
});
Run a generator's tasks:
The .generate method simply calls the .build method on a specific generator.
To run a generator's tasks, pass the generator name as the first argument, and optionally define one or more tasks as the second argument. (If no tasks are defined, the default task is run.)
// run the "default" task on generator "foo"
base.generate('foo', function(err) {
if (err) throw err;
console.log('done!');
});
// or specify tasks
base.generate('foo', ['default'], function() {});
base.generate('foo', ['one', 'two'], function() {});
Alternatively, you can call .build on the generator directly:
// run the "default" task on generator "foo"
base.generator('foo')
.build('default', function(err) {
if (err) throw err;
});
Sub-generators are just generators that are registered on (or invoked within) another generator instance.
Register sub-generators:
Register generators one, two, and three on generator foo:
base.register('foo', function(app, base) {
app.register('one', function() {});
app.register('two', function() {});
app.register('three', function() {});
});
Get a sub-generator:
Use dot-notation to get a sub-generator:
var one = base.generator('foo.one');
Sub-generators may be nested to any level. In reality, you probably won't write code like the following example, but this only illustrates the point that generators are extremely composable, and can be built on top of or with other generators.
base.register('a', function(a, base) {
// do stuff
a.register('b', function(b) {
// do stuff
b.register('c', function(c) {
// do stuff
c.register('d', function(d) {
// do stuff
d.register('e', function(e) {
// arbitrary task
e.task('default', function(cb) {
console.log('e > default!');
cb();
});
});
});
});
});
});
base.getGenerator('a.b.c.d.e')
.build(function(err) {
if (err) throw err;
// 'e > default!'
});
Register tasks on sub-generators:
base.register('foo', function(app, base) {
app.register('one', function(one) {
one.task('default', function() {});
one.task('a', function() {});
one.task('b', function() {});
one.task('c', function() {});
});
app.register('two', function(two) {
two.task('default', function() {});
});
app.register('three', function(three) {
three.task('default', function() {});
});
});
Run a sub-generator's tasks
// run the `default` task from sub-generator `foo.one`
base.generate('foo.one', function(err) {
if (err) throw err;
console.log('done!');
});
Run multiple tasks on a sub-generator:
// run tasks `a`, `b` and `c` on sub-generator `foo.one`
base.generate('foo.one', ['a', 'b', 'c'], function(err) {
if (err) throw err;
console.log('done!');
});
The following applications use this library:
Alias to .setGenerator.
Example
app.register('foo', function(app, base) {
// "app" is a private instance created for the generator
// "base" is a shared instance
});
Params
name {String}: The generator's nameoptions {Object|Function|String}: or generatorgenerator {Object|Function|String}: Generator function, instance or filepath.returns {Object}: Returns the generator instance.Get and invoke generator name, or register generator name with the given val and options, then invoke and return the generator instance. This method differs from .register, which lazily invokes generator functions when .generate is called.
Example
app.generator('foo', function(app, base, env, options) {
// "app" - private instance created for generator "foo"
// "base" - instance shared by all generators
// "env" - environment object for the generator
// "options" - options passed to the generator
});
Params
name {String}fn {Function|Object}: Generator function, instance or filepath.returns {Object}: Returns the generator instance or undefined if not resolved.Store a generator by file path or instance with the given name and options.
Example
app.setGenerator('foo', function(app, base) {
// "app" - private instance created for generator "foo"
// "base" - instance shared by all generators
// "env" - environment object for the generator
// "options" - options passed to the generator
});
Params
name {String}: The generator's nameoptions {Object|Function|String}: or generatorgenerator {Object|Function|String}: Generator function, instance or filepath.returns {Object}: Returns the generator instance.Get generator name from app.generators, same as [findGenerator], but also invokes the returned generator with the current instance. Dot-notation may be used for getting sub-generators.
Example
var foo = app.getGenerator('foo');
// get a sub-generator
var baz = app.getGenerator('foo.bar.baz');
Params
name {String}: Generator name.returns {Object|undefined}: Returns the generator instance or undefined.Find generator name, by first searching the cache, then searching the cache of the base generator. Use this to get a generator without invoking it.
Example
// search by "alias"
var foo = app.findGenerator('foo');
// search by "full name"
var foo = app.findGenerator('generate-foo');
Params
name {String}options {Function}: Optionally supply a rename function on options.toAliasreturns {Object|undefined}: Returns the generator instance if found, or undefined.Get sub-generator name, optionally using dot-notation for nested generators.
Example
app.getSubGenerator('foo.bar.baz');
Params
name {String}: The property-path of the generator to getoptions {Object}Iterate over app.generators and call generator.isMatch(name)
on name until a match is found.
Params
name {String}returns {Object|undefined}: Returns a generator object if a match is found.Example
console.log(app.hasGenerator('foo'));
Params
name {String}val {Object|Function}returns {Boolean}For example, if the lookup name is foo, the function might
return ["generator-foo", "foo"], to ensure that the lookup happens
in that order.
Params
name {String}: Generator name to search foroptions {Object}fn {Function}: Lookup function that must return an array of names.returns {Object}Extend the generator instance with settings and features of another generator.
Example
var foo = base.generator('foo');
app.extendWith(foo);
// or
app.extendWith('foo');
// or
app.extendWith(['foo', 'bar', 'baz']);
app.extendWith(require('generate-defaults'));
Params
app {String|Object}returns {Object}: Returns the instance for chaining.Create a generator alias from the given name. By default the alias is the string after the last dash. Or the whole string if no dash exists.
Example
var camelcase = require('camel-case');
var alias = app.toAlias('foo-bar-baz');
//=> 'baz'
// custom `toAlias` function
app.option('toAlias', function(name) {
return camelcase(name);
});
var alias = app.toAlias('foo-bar-baz');
//=> 'fooBarBaz'
Params
name {String}options {Object}returns {String}: Returns the alias.Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
| Commits | Contributor |
|---|---|
| 227 | jonschlinkert |
| 6 | doowb |
(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
Install dev dependencies:
$ npm install -d && npm test
Jon Schlinkert
Copyright © 2016, Jon Schlinkert. Released under the MIT license.
This file was generated by verb-generate-readme, v0.2.0, on November 22, 2016.
FAQs
Adds project-generator support to your `base` application.
The npm package base-generators receives a total of 13,734 weekly downloads. As such, base-generators popularity was classified as popular.
We found that base-generators demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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