react-native/local-cli/core/findPlugins.js

78 lines
2.0 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
const path = require('path');
const union = require('lodash').union;
const uniq = require('lodash').uniq;
const flatten = require('lodash').flatten;
/**
* Filter dependencies by name pattern
* @param {String} dependency Name of the dependency
* @return {Boolean} If dependency is a rnpm plugin
*/
const isRNPMPlugin = (dependency) => dependency.indexOf('rnpm-plugin-') === 0;
const isReactNativePlugin = (dependency) => dependency.indexOf('react-native-') === 0;
const readPackage = (folder) => {
try {
return require(path.join(folder, 'package.json'));
} catch (e) {
return null;
}
};
const findPluginsInReactNativePackage = (pjson) => {
if (!pjson.rnpm || !pjson.rnpm.plugin) {
return [];
}
return path.join(pjson.name, pjson.rnpm.plugin);
};
const findPluginInFolder = (folder) => {
const pjson = readPackage(folder);
if (!pjson) {
return [];
}
const deps = union(
Object.keys(pjson.dependencies || {}),
Object.keys(pjson.devDependencies || {})
);
return deps.reduce(
(acc, pkg) => {
if (isRNPMPlugin(pkg)) {
return acc.concat(pkg);
}
if (isReactNativePlugin(pkg)) {
const pkgJson = readPackage(path.join(folder, 'node_modules', pkg));
if (!pkgJson) {
return acc;
}
return acc.concat(findPluginsInReactNativePackage(pkgJson));
}
return acc;
},
[]
);
};
/**
* Find plugins in package.json of the given folder
* @param {String} folder Path to the folder to get the package.json from
* @type {Array} Array of plugins or an empty array if no package.json found
*/
module.exports = function findPlugins(folders) {
return uniq(flatten(folders.map(findPluginInFolder)));
};