serverless/lib/actions/ModuleCreate.js
Austen Collins 01ba9f6a52 All: Rebrand
2015-12-03 20:31:49 -08:00

417 lines
13 KiB
JavaScript

'use strict';
/**
* Action: ModuleCreate
*/
const SPlugin = require('../ServerlessPlugin'),
SError = require('../ServerlessError'),
SCli = require('../utils/cli'),
path = require('path'),
BbPromise = require('bluebird'),
SUtils = require('../utils');
let fs = require('fs');
BbPromise.promisifyAll(fs);
const supportedRuntimes = {
nodejs: {
defaultPkgMgr: 'npm',
validPkgMgrs: ['npm'],
},
};
/**
* ModuleCreate Class
*/
class ModuleCreate extends SPlugin {
/**
* Constructor
*/
constructor(S, config) {
super(S, config);
this._templatesDir = path.join(__dirname, '..', '..', 'templates');
this.evt = {};
}
/**
* Define your plugins name
*
* @returns {string}
*/
static getName() {
return 'serverless.core.' + ModuleCreate.name;
}
/**
* @returns {Promise} upon completion of all registrations
*/
registerActions() {
this.S.addAction(this.moduleCreate.bind(this), {
handler: 'moduleCreate',
description: `Creates scaffolding for new aws module.
usage: serverless module create <module resource> <action>`,
context: 'module',
contextAction: 'create',
options: [
{
option: 'runtime',
shortcut: 'r',
description: 'Optional - Runtime of your new module. Default: nodejs'
},
{
option: 'lambda',
shortcut: 'l',
description: 'Optional - if true, will create lambda only module. Default: will create both lambda & endpoint'
},
{
option: 'endpoint',
shortcut: 'e',
description: 'Optional - if true, will create endpoint only module. Default: will create both lambda & endpoint'
},
{
option: 'package-manager',
shortcut: 'p',
description: 'Optional - package manager for your chosen runtime. Default: npm for nodejs'
},
{
option: 'nonInteractive',
shortcut: 'i',
description: 'Optional - Turn off CLI interactivity if true. Default: false'
},
],
});
return BbPromise.resolve();
}
/**
* Action
*/
moduleCreate(evt) {
let _this = this;
if(evt) {
_this.evt = evt;
_this.S._interactive = false;
}
// If CLI, parse options & params
if (_this.S.cli) {
_this.evt = this.S.cli.options;
_this.evt.resource = _this.S.cli.params[0];
_this.evt.action = _this.S.cli.params[1];
if (_this.S.cli.options.nonInteractive) {
_this.S._interactive = false;
}
}
return this.S.validateProject()
.bind(_this)
.then(_this._promptResourceAction)
.then(_this._validateAndPrepare)
.then(_this._createSkeleton)
.then(_this._createPackageMgrSkeleton)
.then(_this._initRuntime)
.then(function() {
SCli.log('Successfully created ' + _this.evt.resource + '/' + _this.evt.action);
});
}
/**
* Prompt resource & action if they're missing
*/
_promptResourceAction(){
let _this = this,
overrides = {};
if (!_this.S._interactive) return BbPromise.resolve();
['resource', 'action'].forEach(memberVarKey => {
overrides[memberVarKey] = _this['evt'][memberVarKey];
});
let prompts = {
properties: {
resource: {
description: 'Enter a resource name of your new module: '.yellow,
message: 'Resource name is required.',
required: true,
},
action: {
description: 'Enter an action name for your new module: '.yellow,
message: 'Action name is required',
required: true,
},
}
};
return _this.promptInput(prompts, overrides)
.then(function(answers) {
_this.evt.resource = answers.resource;
_this.evt.action = answers.action;
});
}
_validateAndPrepare() {
// non interactive validation
if (!this.S._interactive) {
// Check API Keys
if (!this.S._awsProfile) {
if (!this.S._awsAdminKeyId || !this.S._awsAdminSecretKey) {
return BbPromise.reject(new SError('Missing AWS Profile and/or API Key and/or AWS Secret Key'));
}
}
// Check Params
if (!this.evt.resource || !this.evt.action) {
return BbPromise.reject(new SError('Missing resource or/and action names'));
}
}
if (!this.evt.lambda && !this.evt.endpoint) { //default is to create both
this.evt.lambda = true;
this.evt.endpoint = true;
}
// Add default runtime
if (!this.evt.runtime) {
this.evt.runtime = 'nodejs';
}
// add default package manager
if (!this.evt.pkgMgr){
this.evt.pkgMgr = supportedRuntimes[this.evt.runtime].defaultPkgMgr;
}
if (!supportedRuntimes[this.evt.runtime]) {
return BbPromise.reject(new SError('Unsupported runtime ' + this.evt.runtime, SError.errorCodes.UNKNOWN));
}
if (supportedRuntimes[this.evt.runtime].validPkgMgrs.indexOf(this.evt.pkgMgr) == -1) {
return BbPromise.reject(new SError('Unsupported package manger "' + this.evt.pkgMgr + '"', SError.errorCodes.UNKNOWN));
}
// senitize resource
this.evt.resource = this.evt.resource.toLowerCase().trim()
.replace(/\s/g, '-')
.replace(/[^a-zA-Z-\d:]/g, '')
.substring(0, 19);
// senitize action
this.evt.action = this.evt.action.toLowerCase().trim()
.replace(/\s/g, '-')
.replace(/[^a-zA-Z-\d:]/g, '')
.substring(0, 19);
return BbPromise.resolve();
};
_generateFunctionJson() {
let _this = this;
let actionTemplateJson = SUtils.readAndParseJsonSync(path.join(this._templatesDir, 's-function.json'));
//We prefix with an l to make sure the CloudFormation resource map index is unique
actionTemplateJson.name = _this.evt.resource.charAt(0).toUpperCase() + _this.evt.resource.slice(1) + _this.evt.action.charAt(0).toUpperCase() + _this.evt.action.slice(1);
if (_this.evt.lambda) {
actionTemplateJson.cloudFormation.lambda.Function.Properties.Runtime = _this.evt.runtime;
// Create files for lambda actions
switch (_this.evt.runtime) {
case 'nodejs':
actionTemplateJson.cloudFormation.lambda.Function.Properties.Handler = path.join('modules', _this.evt.resource, _this.evt.action, 'handler.handler');
break;
default:
return BbPromise.reject(new SError('Unsupported runtime ' + this.evt.runtime, SError.errorCodes.UNKNOWN));
break;
}
} else {
delete actionTemplateJson.lambda;
}
if (_this.evt.endpoint) {
actionTemplateJson.cloudFormation.apiGateway.Endpoint.Path = _this.evt.resource + '/' + _this.evt.action;
} else {
delete actionTemplateJson.cloudFormation.apiGateway;
}
delete actionTemplateJson.cloudFormation.lambda.EventSourceMapping;
delete actionTemplateJson.cloudFormation.lambda.AccessPolicyX;
return actionTemplateJson;
}
_generateModuleAwsmJson() {
let _this = this;
let moduleTemplateJson = SUtils.readAndParseJsonSync(path.join(this._templatesDir, 's-module.json'));
moduleTemplateJson.name = _this.evt.resource;
return moduleTemplateJson;
};
/**
*
* @returns {Promise}
* @private
*/
_createSkeleton() {
let _this = this,
writeFilesDeferred = [],
modulePath = path.join(this.S._projectRootPath, 'back', 'modules', _this.evt.resource),
actionPath = path.join(modulePath, _this.evt.action);
// If module/action already exists, throw error
if (SUtils.dirExistsSync(actionPath)) {
return BbPromise.reject(new SError(
actionPath + ' already exists',
SError.errorCodes.INVALID_PROJECT_JAWS
));
}
//module path will get created by util.writeFile if DNE
// If module s-module.json doesn't exist, create it
if (!SUtils.fileExistsSync(path.join(modulePath, 's-module.json'))) {
SUtils.sDebug('Module s-module.json does not exist. Creating..')
let moduleTemplateJson = _this._generateModuleAwsmJson();
writeFilesDeferred.push(
SUtils.writeFile(
path.join(modulePath, 's-module.json'),
JSON.stringify(moduleTemplateJson, null, 2)
)
);
}
// Create function folder
writeFilesDeferred.push(actionPath);
// Create function s-function.json
let actionTemplateJson = _this._generateFunctionJson(),
handlerJs = fs.readFileSync(path.join(this._templatesDir, 'nodejs', 'handler.js')),
indexJs = fs.readFileSync(path.join(this._templatesDir, 'nodejs', 'index.js'));
writeFilesDeferred.push(
SUtils.writeFile(path.join(actionPath, 'handler.js'), handlerJs),
SUtils.writeFile(path.join(actionPath, 'index.js'), indexJs),
SUtils.writeFile(path.join(actionPath, 'event.json'), '{}'),
SUtils.writeFile(path.join(actionPath, 's-function.json'), JSON.stringify(actionTemplateJson, null, 2))
);
return BbPromise.all(writeFilesDeferred);
}
/**
*
* @returns {Promise}
* @private
*/
_createPackageMgrSkeleton() {
let _this = this,
deferredWrites = [];
switch (_this.evt.runtime) {
case 'nodejs':
if (_this.evt.pkgMgr == 'npm') {
let node_modules_path = path.join(_this.S._projectRootPath, 'back', 'node_modules');
// Create node_modules if DNE in project
if (!SUtils.dirExistsSync(node_modules_path)) {
deferredWrites.push(fs.mkdirAsync(node_modules_path));
}
let modulePath = path.join(_this.S._projectRootPath, 'back', 'node_modules', _this.evt.resource);
// create module dir if DNE in node_modules
if (!SUtils.dirExistsSync(modulePath)) {
deferredWrites.push(fs.mkdirAsync(modulePath));
}
// Create module package.json if DNE in node_module
if (!SUtils.fileExistsSync(path.join(modulePath, 'package.json'))) {
let packageJsonTemplate = SUtils.readAndParseJsonSync(path.join(_this._templatesDir, 'nodejs', 'package.json'));
packageJsonTemplate.name = _this.evt.resource;
packageJsonTemplate.description = 'An aws-module';
packageJsonTemplate.dependencies = {};
deferredWrites.push(
fs.writeFileAsync(path.join(modulePath, 'package.json'), JSON.stringify(packageJsonTemplate, null, 2))
);
}
// Create module s-module.json if DNE in node_module
if (!SUtils.fileExistsSync(path.join(modulePath, 's-module.json'))) {
let moduleTemplateJson = _this._generateModuleAwsmJson();
deferredWrites.push(
SUtils.writeFile(path.join(modulePath, 's-module.json'),
JSON.stringify(moduleTemplateJson, null, 2)));
}
// Create root lib folder if DNE in node_module
let modLibPath = path.join(modulePath, 'lib');
if (!SUtils.dirExistsSync(modLibPath)) {
deferredWrites.push(fs.mkdirAsync(modLibPath));
}
// Create s-module folder if DNE in node_module
if (!SUtils.dirExistsSync(path.join(modulePath, 's-module'))) {
deferredWrites.push(fs.mkdirAsync(path.join(modulePath, 's-module')));
}
// Create function if DNE in node_module
let actionPath = path.join(modulePath, 's-function', _this.evt.action);
if (!SUtils.dirExistsSync(actionPath)) {
let actionTemplateJson = this._generateFunctionJson(),
handlerJs = fs.readFileSync(path.join(_this._templatesDir, 'nodejs', 'handler.js')),
indexJs = fs.readFileSync(path.join(_this._templatesDir, 'nodejs', 'index.js'));
deferredWrites.push(
SUtils.writeFile(path.join(actionPath, 's-function.json'), JSON.stringify(actionTemplateJson, null, 2)),
SUtils.writeFile(path.join(actionPath, 'handler.js'), handlerJs),
SUtils.writeFile(path.join(actionPath, 'index.js'), indexJs),
SUtils.writeFile(path.join(actionPath, 'event.json'), '{}')
);
}
}
break;
default:
break;
}
return BbPromise.all(deferredWrites);
}
/**
*
* @returns {Promise}
* @private
*/
_initRuntime() {
let _this = this;
SCli.log('Preparing your runtime..');
if (_this.evt.runtime === 'nodejs') {
let packageJsonTemplate = SUtils.readAndParseJsonSync(path.join(_this._templatesDir, 'nodejs', 'package.json'));
packageJsonTemplate.name = _this.S._projectJson.name;
return fs.writeFileAsync(path.join(_this.S._projectRootPath, 'package.json'), JSON.stringify(packageJsonTemplate, null, 2))
.then(function() {
SCli.log('Installing jaws-core module...');
SUtils.npmInstall(_this.S._projectRootPath);
});
}
}
}
module.exports = ModuleCreate;