packager: remove unused declareOpts module

Summary: That module is not used anymore, remove it and its dependency `joi`.

Reviewed By: cpojer

Differential Revision: D5028909

fbshipit-source-id: 90b9b156fbfe642cce93a530faf8ce91c5b848f5

packages/metro-bundler/src/Bundler/__tests__/Bundler-test.js

@@ -21,12 +21,11 @@ jest
   .mock('progress')
   .mock('../../node-haste/DependencyGraph')
   .mock('../../JSTransformer')
-  .mock('../../lib/declareOpts')
   .mock('../../Resolver')
   .mock('../Bundle')
   .mock('../HMRBundle')
   .mock('../../Logger')
-  .mock('../../lib/declareOpts');
+  ;
 
 var Bundler = require('../');
 var Resolver = require('../../Resolver');

packages/metro-bundler/src/Server/__tests__/Server-test.js

@@ -22,7 +22,6 @@ jest.mock('../../worker-farm', () => () => () => {})
     )
     .mock('../../Bundler')
     .mock('../../AssetServer')
-    .mock('../../lib/declareOpts')
     .mock('../../node-haste/DependencyGraph')
     .mock('../../Logger')
     .mock('../../lib/GlobalTransformCache');

packages/metro-bundler/src/lib/__tests__/declareOpts-test.js

@@ -1,92 +0,0 @@
-/**
- * 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';
-
-jest.disableAutomock();
-
-var declareOpts = require('../declareOpts');
-
-describe('declareOpts', function() {
-  it('should declare and validate simple opts', function() {
-    var validate = declareOpts({
-      name: {
-        required: true,
-        type: 'string',
-      },
-      age: {
-        type: 'number',
-        default: 21,
-      },
-    });
-    var opts = validate({name: 'fooer'});
-
-    expect(opts).toEqual({
-      name: 'fooer',
-      age: 21,
-    });
-  });
-
-  it('should work with complex types', function() {
-    var validate = declareOpts({
-      things: {
-        required: true,
-        type: 'array',
-      },
-      stuff: {
-        type: 'object',
-        required: true,
-      },
-    });
-
-    var opts = validate({things: [1, 2, 3], stuff: {hai: 1}});
-    expect(opts).toEqual({
-      things: [1, 2, 3],
-      stuff: {hai: 1},
-    });
-  });
-
-  it('should throw when a required option is not present', function() {
-    var validate = declareOpts({
-      foo: {
-        required: true,
-        type: 'number',
-      },
-    });
-
-    expect(function() {
-      validate({});
-    }).toThrow();
-  });
-
-  it('should throw on invalid type', function() {
-    var validate = declareOpts({
-      foo: {
-        required: true,
-        type: 'number',
-      },
-    });
-
-    expect(function() {
-      validate({foo: 'lol'});
-    }).toThrow();
-  });
-
-  it('should throw on extra options', function() {
-    var validate = declareOpts({
-      foo: {
-        required: true,
-        type: 'number',
-      },
-    });
-
-    expect(function() {
-      validate({foo: 1, lol: 1});
-    }).toThrow();
-  });
-});

packages/metro-bundler/src/lib/declareOpts.js

@@ -1,75 +0,0 @@
-/**
- * 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.
- *
- * Declares, validates and defaults options.
- * var validate = declareOpts({
- *   foo: {
- *     type: 'bool',
- *     required: true,
- *   }
- * });
- *
- * var myOptions = validate(someOptions);
- *
- * @flow
- */
-
-'use strict';
-
-var Joi = require('joi');
-
-/**
- * TOut is always more specific than TIn, so it's a subtype.
- */
-module.exports = function<TIn: {}, TOut: TIn>(
-  descriptor: {[name: string]: {
-    type: mixed,
-    required?: boolean,
-    default?: mixed,
-  }},
-): (untyped: TIn) => TOut {
-  var joiKeys = {};
-  Object.keys(descriptor).forEach(function(prop) {
-    var record = descriptor[prop];
-    if (record.type == null) {
-      throw new Error('Type is required');
-    }
-
-    if (record.type === 'function') {
-      record.type = 'func';
-    }
-
-    var propValidator = Joi[record.type]();
-
-    if (record.required) {
-      propValidator = propValidator.required();
-    }
-
-    if (record.default) {
-      propValidator = propValidator.default(record.default);
-    }
-
-    joiKeys[prop] = propValidator;
-  });
-
-  var schema = Joi.object().keys(joiKeys);
-
-  return function(opts) {
-    opts = opts || {};
-
-    var res = Joi.validate(opts, schema, {
-      abortEarly: true,
-      allowUnknown: false,
-    });
-
-    if (res.error) {
-      throw new Error('Error validating module options: ' + res.error.message);
-    }
-    return res.value;
-  };
-};