105 lines
3.3 KiB
Markdown
Executable File
105 lines
3.3 KiB
Markdown
Executable File
<p align="center">
|
|
<a href="http://gulpjs.com">
|
|
<img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
|
|
</a>
|
|
</p>
|
|
|
|
# resolve-options
|
|
|
|
[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]
|
|
|
|
Resolve an options object based on configuration.
|
|
|
|
## Usage
|
|
|
|
```js
|
|
// This example assumes a Vinyl file
|
|
|
|
var createResolver = require('resolve-options');
|
|
|
|
var config = {
|
|
cwd: {
|
|
type: 'string',
|
|
default: process.cwd
|
|
},
|
|
sourcemaps: {
|
|
type: 'boolean',
|
|
default: false
|
|
},
|
|
since: {
|
|
type: ['date', 'number']
|
|
},
|
|
read: {
|
|
type: 'boolean'
|
|
}
|
|
};
|
|
|
|
var options = {
|
|
sourcemaps: true,
|
|
since: Date.now(),
|
|
read: function(file) {
|
|
return (file.extname !== '.mp4');
|
|
}
|
|
};
|
|
|
|
var resolver = createResolver(config, options);
|
|
|
|
var cwd = resolver.resolve('cwd', file);
|
|
// cwd === process.cwd()
|
|
|
|
var sourcemaps = resolver.resolve('sourcemaps', file);
|
|
// sourcemaps === true
|
|
|
|
var read = resolver.resolve('read', file);
|
|
// Given .mp4, read === false
|
|
// Given .txt, read === true
|
|
```
|
|
|
|
## API
|
|
|
|
### `createResolver([config,] [options])`
|
|
|
|
Takes a `config` object that describes the options to accept/resolve and an `options` object (usually passed by a user) to resolve against the `config`. Returns a `resolver` that contains a `resolve` method for realtime resolution of options.
|
|
|
|
The `config` object takes the following structure:
|
|
```graphql
|
|
config {
|
|
[optionKey] {
|
|
type // string, array or function
|
|
default // any value or function
|
|
}
|
|
}
|
|
```
|
|
|
|
Each option is represented by its `optionKey` in the `config` object. It must be an object with a `type` property.
|
|
|
|
The `type` property must be a string, array or function which will be passed to the [`value-or-function`][value-or-function] module (functions will be bound to the resolver to allow for dependent options).
|
|
|
|
A `default` property may also be specified as a fallback if the option isn't available or is invalid. The `default` value can be any value or a function (functions will be bound to the resolver to allow for dependent defaults). __Note:__ `default` values are not type-validated by the `value-or-function` module.
|
|
|
|
### `resolver.resolve(optionKey, [...arguments])`
|
|
|
|
Takes an `optionKey` string and any number of `arguments` to apply if an option is a function. Returns the resolved value for the `optionKey`.
|
|
|
|
## License
|
|
|
|
MIT
|
|
|
|
[value-or-function]: https://github.com/gulpjs/value-or-function
|
|
|
|
[downloads-image]: http://img.shields.io/npm/dm/resolve-options.svg
|
|
[npm-url]: https://npmjs.com/package/resolve-options
|
|
[npm-image]: http://img.shields.io/npm/v/resolve-options.svg
|
|
|
|
[travis-url]: https://travis-ci.org/gulpjs/resolve-options
|
|
[travis-image]: http://img.shields.io/travis/gulpjs/resolve-options.svg?label=travis-ci
|
|
|
|
[appveyor-url]: https://ci.appveyor.com/project/gulpjs/resolve-options
|
|
[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/resolve-options.svg?label=appveyor
|
|
|
|
[coveralls-url]: https://coveralls.io/r/gulpjs/resolve-options
|
|
[coveralls-image]: http://img.shields.io/coveralls/gulpjs/resolve-options/master.svg
|
|
|
|
[gitter-url]: https://gitter.im/gulpjs/gulp
|
|
[gitter-image]: https://badges.gitter.im/gulpjs/gulp.png
|