serverless/lib/actions/ProjectInit.js
2016-03-14 10:41:51 -07:00

307 lines
10 KiB
JavaScript

'use strict';
/**
* Action: ProjectInit
* - Takes a project and initializes it
* - Creates a _meta folder
* - Creates CF files
* - Creates CF stack by default, unless noExeCf option is set to true
*
* Options:
* - name (String) a new name for this project
* - profile (String) an AWS profile to use for your first stage. Must be available in ~/.aws/credentials
* - stage (String) the first stage for your new project
* - region (String) the first region for your new project
* - noExeCf: (Boolean) Don't execute CloudFormation
*/
module.exports = function(SPlugin, serverlessPath) {
const path = require('path'),
SError = require( path.join( serverlessPath, 'Error' ) ),
SCli = require( path.join( serverlessPath, 'utils/cli' ) ),
BbPromise = require('bluebird'),
os = require('os'),
fs = BbPromise.promisifyAll(require('fs'));
let SUtils;
class ProjectInit extends SPlugin {
constructor(S, config) {
super(S, config);
SUtils = S.utils;
}
static getName() {
return 'serverless.core.' + ProjectInit.name;
}
registerActions() {
this.S.addAction(this.projectInit.bind(this), {
handler: 'projectInit',
description: 'Initializes a Serverless project',
context: 'project',
contextAction: 'init',
options: [
{
option: 'name',
shortcut: 'n',
description: 'A new name for this Serverless project'
}, {
option: 'stage',
shortcut: 's',
description: 'Initial project stage'
}, {
option: 'region',
shortcut: 'r',
description: 'Initial Lambda supported AWS region'
}, {
option: 'profile',
shortcut: 'p',
description: 'AWS profile that is set in your aws config file'
}, {
option: 'noExeCf',
shortcut: 'c',
description: 'Optional - Don\'t execute CloudFormation, just generate it. Default: false'
}
]
});
return BbPromise.resolve();
}
/**
* Action
*/
projectInit(evt) {
this.evt = evt;
// Greet
if (this.S.config.interactive && !this.evt.options.noGreeting) SCli.asciiGreeting();
console.log('');
SCli.log('Initializing Serverless Project...');
/**
* Control Flow
*/
return this._prompt()
.bind(this)
.then(this._validateAndPrepare)
.then(this._scaffold)
.then(this._createStageAndRegion)
.then(() => {
SCli.log(`Successfully initialized project "${this.evt.options.name}"`);
return this.evt;
});
}
/**
* Prompt
*/
_prompt() {
let _this = this,
name, isName;
// fixes the double generated bucket id bug
if (_this.evt.options.name) isName = true;
// Set temp name
if (_this.S.hasProject()) {
name = _this.evt.options.name ? _this.evt.options.name : (_this.S.getProject().getName() + '-' + SUtils.generateShortId(6)).toLowerCase();
} else {
name = _this.evt.options.name ? _this.evt.options.name : ('serverless-' + SUtils.generateShortId(6)).toLowerCase();
}
// Skip if non-interactive
if (!_this.S.config.interactive) return BbPromise.resolve();
// Values that exist will not be prompted
let overrides = {
name: _this.evt.options.name,
region: _this.evt.options.region
};
let prompts = {
properties: {
name: {
description: 'Enter a name for this project: '.yellow,
default: name,
message: 'Name must be only letters, numbers or dashes',
required: true,
conform: function(name) {
let re = /^[a-zA-Z0-9-_]+$/;
// This hack updates the defaults in the other prompts
if (re.test(name)) _this.evt.options.name = name;
return re.test(name);
}
}
}
};
return this.cliPromptInput(prompts, overrides)
.then(function(answers) {
// Set Prompt Values
_this.evt.options.name = answers.name;
});
}
/**
* Validate & Prepare
* - Validate all data from event, interactive CLI or non interactive CLI and prepare project data
*/
_validateAndPrepare() {
// Validate Name - AWS only allows Alphanumeric and - in name
let nameOk = /^([a-zA-Z0-9-]+)$/.exec(this.evt.options.name);
if (!nameOk) {
return BbPromise.reject(new SError('Project names can only be alphanumeric and -'));
}
return BbPromise.resolve();
}
/**
* Update Scaffolding
*/
_scaffold() {
let _this = this;
let files = [];
return BbPromise.try(function() {
// If no project exists, set it
if( !_this.S.hasProject() ) {
_this.S.updateConfig({
projectPath: path.resolve(path.join(path.dirname('.'), _this.evt.options.name))
});
_this.S.setProject(new _this.S.classes.Project(_this.S));
}
// Fill in project attributes
_this.project = _this.S.getProject();
_this.project.name = _this.evt.options.name;
// Add default project variables
_this.project.addVariables({
project: _this.evt.options.name
});
// Save Project
return _this.project.save();
})
.then(function() {
// Create other scaffolding
// If package.json does not exist, save it
let packageJson;
if (!SUtils.fileExistsSync(_this.project.getRootPath( 'package.json' ))) {
// Prepare new package.json
packageJson = SUtils.readFileSync(path.join(_this.S.config.serverlessPath, 'templates', 'nodejs', 'package.json'));
packageJson.name = _this.project.getName();
packageJson.description = 'A Serverless Project and its Serverless Plugin dependencies.';
packageJson.private = false;
packageJson.dependencies = {};
if (packageJson.devDependencies) delete packageJson.devDependencies;
if (packageJson.keywords) delete packageJson.keywords;
files.push(fs.writeFileAsync(_this.project.getRootPath( 'package.json' ), JSON.stringify(packageJson, null, 2)))
} else {
// Modify existing package.json
packageJson = SUtils.readFileSync(_this.project.getRootPath( 'package.json' ));
packageJson.name = _this.project.getName();
// Delete unnecessary package.json properties, if they exist
if (packageJson.readme) delete packageJson.readme;
if (packageJson.readmeFilename) delete packageJson.readmeFilename;
if (packageJson.gitHead) delete packageJson.gitHead;
if (packageJson._id) delete packageJson._id;
if (packageJson._shasum) delete packageJson._shasum;
if (packageJson._from) delete packageJson._from;
if (packageJson._npmVersion) delete packageJson._npmVersion;
if (packageJson._nodeVersion) delete packageJson._nodeVersion;
if (packageJson._npmUser) delete packageJson._npmUser;
if (packageJson.dist) delete packageJson.dist;
if (packageJson.maintainers) delete packageJson.maintainers;
if (packageJson.directories) delete packageJson.directories;
if (packageJson._resolved) delete packageJson._resolved;
if (packageJson._args) delete packageJson._args;
if (packageJson._inCache) delete packageJson._inCache;
if (packageJson._installable) delete packageJson._installable;
if (packageJson._location) delete packageJson._location;
if (packageJson._phantomChildren) delete packageJson._phantomChildren;
if (packageJson._requested) delete packageJson._requested;
if (packageJson._requiredBy) delete packageJson._requiredBy;
if (packageJson._shrinkwrap || packageJson._shrinkwrap === null) delete packageJson._shrinkwrap;
if (packageJson._spec) delete packageJson._spec;
if (packageJson._where) delete packageJson._where;
files.push(fs.writeFileAsync(_this.project.getRootPath( 'package.json' ), JSON.stringify(packageJson, null, 2)))
}
// If .gitignore does not exist, save it
if (!SUtils.fileExistsSync(_this.project.getRootPath( '.gitignore' ))) {
files.push(fs.writeFileAsync(_this.project.getRootPath( '.gitignore' ), fs.readFileSync(path.join(_this.S.config.serverlessPath, 'templates', 'gitignore'))));
}
return BbPromise.all(files);
});
}
/**
* Create Stage And Region
*/
_createStageAndRegion() {
let _this = this;
let choices = [{
key: '',
value: true,
label: 'Yes'
}, {
key: '',
value: false,
label: 'No'
}];
return BbPromise
.try(() => {
if (!this.S.config.interactive) return true;
return _this.cliPromptSelect('Do you want to create a new stage and region for this project? ', choices, false)
.then(results => results[0].value)
})
.then(answer => {
if (answer) {
return _this.S.actions.stageCreate({
options: {
stage: _this.evt.options.stage,
region: _this.evt.options.region,
profile: _this.evt.options.profile,
noExeCf: _this.evt.options.noExeCf ? true : false
}
});
}
});
}
}
return( ProjectInit );
};