mirror of
https://github.com/actions/setup-python.git
synced 2024-12-23 06:02:09 -05:00
155 lines
3.4 KiB
JavaScript
155 lines
3.4 KiB
JavaScript
/*!
|
|
* use <https://github.com/jonschlinkert/use>
|
|
*
|
|
* Copyright (c) 2015-2017, Jon Schlinkert.
|
|
* Released under the MIT License.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
module.exports = function base(app, options) {
|
|
if (!isObject(app) && typeof app !== 'function') {
|
|
throw new TypeError('expected an object or function');
|
|
}
|
|
|
|
var opts = isObject(options) ? options : {};
|
|
var prop = typeof opts.prop === 'string' ? opts.prop : 'fns';
|
|
if (!Array.isArray(app[prop])) {
|
|
define(app, prop, []);
|
|
}
|
|
|
|
/**
|
|
* Define a plugin function to be passed to use. The only
|
|
* parameter exposed to the plugin is `app`, the object or function.
|
|
* passed to `use(app)`. `app` is also exposed as `this` in plugins.
|
|
*
|
|
* Additionally, **if a plugin returns a function, the function will
|
|
* be pushed onto the `fns` array**, allowing the plugin to be
|
|
* called at a later point by the `run` method.
|
|
*
|
|
* ```js
|
|
* var use = require('use');
|
|
*
|
|
* // define a plugin
|
|
* function foo(app) {
|
|
* // do stuff
|
|
* }
|
|
*
|
|
* var app = function(){};
|
|
* use(app);
|
|
*
|
|
* // register plugins
|
|
* app.use(foo);
|
|
* app.use(bar);
|
|
* app.use(baz);
|
|
* ```
|
|
* @name .use
|
|
* @param {Function} `fn` plugin function to call
|
|
* @api public
|
|
*/
|
|
|
|
define(app, 'use', use);
|
|
|
|
/**
|
|
* Run all plugins on `fns`. Any plugin that returns a function
|
|
* when called by `use` is pushed onto the `fns` array.
|
|
*
|
|
* ```js
|
|
* var config = {};
|
|
* app.run(config);
|
|
* ```
|
|
* @name .run
|
|
* @param {Object} `value` Object to be modified by plugins.
|
|
* @return {Object} Returns the object passed to `run`
|
|
* @api public
|
|
*/
|
|
|
|
define(app, 'run', function(val) {
|
|
if (!isObject(val)) return;
|
|
|
|
if (!val.use || !val.run) {
|
|
define(val, prop, val[prop] || []);
|
|
define(val, 'use', use);
|
|
}
|
|
|
|
if (!val[prop] || val[prop].indexOf(base) === -1) {
|
|
val.use(base);
|
|
}
|
|
|
|
var self = this || app;
|
|
var fns = self[prop];
|
|
var len = fns.length;
|
|
var idx = -1;
|
|
|
|
while (++idx < len) {
|
|
val.use(fns[idx]);
|
|
}
|
|
return val;
|
|
});
|
|
|
|
/**
|
|
* Call plugin `fn`. If a function is returned push it into the
|
|
* `fns` array to be called by the `run` method.
|
|
*/
|
|
|
|
function use(type, fn, options) {
|
|
var offset = 1;
|
|
|
|
if (typeof type === 'string' || Array.isArray(type)) {
|
|
fn = wrap(type, fn);
|
|
offset++;
|
|
} else {
|
|
options = fn;
|
|
fn = type;
|
|
}
|
|
|
|
if (typeof fn !== 'function') {
|
|
throw new TypeError('expected a function');
|
|
}
|
|
|
|
var self = this || app;
|
|
var fns = self[prop];
|
|
|
|
var args = [].slice.call(arguments, offset);
|
|
args.unshift(self);
|
|
|
|
if (typeof opts.hook === 'function') {
|
|
opts.hook.apply(self, args);
|
|
}
|
|
|
|
var val = fn.apply(self, args);
|
|
if (typeof val === 'function' && fns.indexOf(val) === -1) {
|
|
fns.push(val);
|
|
}
|
|
return self;
|
|
}
|
|
|
|
/**
|
|
* Wrap a named plugin function so that it's only called on objects of the
|
|
* given `type`
|
|
*
|
|
* @param {String} `type`
|
|
* @param {Function} `fn` Plugin function
|
|
* @return {Function}
|
|
*/
|
|
|
|
function wrap(type, fn) {
|
|
return function plugin() {
|
|
return this.type === type ? fn.apply(this, arguments) : plugin;
|
|
};
|
|
}
|
|
|
|
return app;
|
|
};
|
|
|
|
function isObject(val) {
|
|
return val && typeof val === 'object' && !Array.isArray(val);
|
|
}
|
|
|
|
function define(obj, key, val) {
|
|
Object.defineProperty(obj, key, {
|
|
configurable: true,
|
|
writable: true,
|
|
value: val
|
|
});
|
|
}
|