embark-area-51/lib/pipeline/pipeline.js

259 lines
9.3 KiB
JavaScript

const fs = require('../core/fs.js');
const async = require('async');
const child_process = require('child_process');
const utils = require('../utils/utils.js');
const constants = require('../constants');
require("babel-preset-react");
require("babel-preset-es2015");
require("babel-preset-es2016");
require("babel-preset-es2017");
class Pipeline {
constructor(options) {
this.buildDir = options.buildDir;
this.contractsFiles = options.contractsFiles;
this.assetFiles = options.assetFiles;
this.events = options.events;
this.logger = options.logger;
this.normalizeInput = options.normalizeInput;
this.plugins = options.plugins;
this.pipelinePlugins = this.plugins.getPluginsFor('pipeline');
}
build(abi, contractsJSON, path, callback) {
let self = this;
const importsList = {};
async.waterfall([
function buildTheContracts(next) {
self.buildContracts(contractsJSON, next);
},
function buildWeb3(next) {
self.buildWeb3JS(next);
},
function createImportList(next) {
importsList["Embark/EmbarkJS"] = fs.dappPath(".embark", 'embark.js');
importsList["Embark/web3"] = fs.dappPath(".embark", 'web3_instance.js');
self.plugins.getPluginsProperty('imports', 'imports').forEach(function (importObject) {
let [importName, importLocation] = importObject;
importsList[importName] = importLocation;
});
next();
},
function writeContracts(next) {
async.each(Object.keys(contractsJSON), (contractName, eachCb) => {
self.buildContractJS(contractName, (err, contractCode) => {
let filePath = fs.dappPath(".embark", contractName + '.js');
importsList["Embark/contracts/" + contractName] = filePath;
fs.writeFile(filePath, contractCode, eachCb);
});
}, next);
},
function assetFileWrite(next) {
async.eachOf(self.assetFiles, function (files, targetFile, cb) {
async.map(files,
function (file, fileCb) {
self.logger.trace("reading " + file.filename);
// Not a JS file
if (file.filename.indexOf('.js') < 0) {
return file.content(function (fileContent) {
self.runPlugins(file, fileContent, fileCb);
});
}
// JS files
async.waterfall([
function runWebpack(next) {
const webpackProcess = child_process.fork(utils.joinPath(__dirname, 'webpackProcess.js'));
webpackProcess.send({action: constants.pipeline.init, options: {}});
webpackProcess.send({action: constants.pipeline.build, file, importsList});
webpackProcess.on('message', function (msg) {
if (msg.result === constants.pipeline.built) {
webpackProcess.disconnect();
return next(msg.error);
}
if (msg.result === constants.pipeline.log) {
if (self.logger[msg.type]) {
return self.logger[msg.type](self.normalizeInput(msg.message));
}
self.logger.debug(self.normalizeInput(msg.message));
}
});
},
function readFile(next) {
fs.readFile('./.embark/' + file.filename, (err, data) => {
if (err) {
return next(err);
}
next(null, data.toString());
});
},
function runPluginsOnContent(fileContent, next) {
self.runPlugins(file, fileContent, next);
}
], function (err, contentFile) {
if (err) {
self.logger.error(err);
return fileCb(err);
}
fileCb(null, contentFile);
});
},
function (err, contentFiles) {
if (err) {
self.logger.error('errors found while generating ' + targetFile);
}
let dir = targetFile.split('/').slice(0, -1).join('/');
self.logger.trace("creating dir " + self.buildDir + dir);
fs.mkdirpSync(self.buildDir + dir);
// if it's a directory
if (targetFile.slice(-1) === '/' || targetFile.indexOf('.') === -1) {
let targetDir = targetFile;
if (targetDir.slice(-1) !== '/') {
targetDir = targetDir + '/';
}
async.each(contentFiles, function (file, mapCb) {
let filename = file.filename.replace(file.basedir + '/', '');
self.logger.info("writing file " + (self.buildDir + targetDir + filename).bold.dim);
fs.copy(file.path, self.buildDir + targetDir + filename, {overwrite: true}, mapCb);
}, cb);
return;
}
let content = contentFiles.map(function (file) {
if (file === undefined) {
return "";
}
return file.content;
}).join("\n");
self.logger.info("writing file " + (self.buildDir + targetFile).bold.dim);
fs.writeFile(self.buildDir + targetFile, content, cb);
}
);
},
next);
}
], callback);
}
runPlugins(file, fileContent, fileCb) {
const self = this;
if (self.pipelinePlugins.length <= 0) {
return fileCb(null, {content: fileContent, filename: file.filename, path: file.path, basedir: file.basedir, modified: true});
}
async.eachSeries(self.pipelinePlugins,
function(plugin, pluginCB) {
if (file.options && file.options.skipPipeline) {
return pluginCB();
}
fileContent = plugin.runPipeline({targetFile: file.filename, source: fileContent});
file.modified = true;
pluginCB();
},
function (err) {
if (err) {
self.logger.error(err.message);
}
return fileCb(null, {content: fileContent, filename: file.filename, path: file.path, basedir: file.basedir, modified: true});
}
);
}
buildContracts(contractsJSON, callback) {
fs.mkdirp(fs.dappPath(this.buildDir, 'contracts'), (err) => {
if (err) {
return callback(err);
}
async.each(Object.keys(contractsJSON), (className, eachCb) => {
let contract = contractsJSON[className];
fs.writeJson(fs.dappPath(this.buildDir, 'contracts', className + ".json"), contract, {spaces: 2}, eachCb);
}, callback);
});
}
buildContractJS(contractName, callback) {
fs.readFile(fs.dappPath(this.buildDir, 'contracts', contractName + '.json'), (err, contractJSON) => {
if (err) {
return callback(err);
}
contractJSON = contractJSON.toString();
let contractCode = "";
contractCode += "import web3 from 'Embark/web3';\n";
contractCode += "import EmbarkJS from 'Embark/EmbarkJS';\n";
contractCode += "let " + contractName + "JSONConfig = " + contractJSON + ";\n";
contractCode += "let " + contractName + " = new EmbarkJS.Contract(" + contractName + "JSONConfig);\n";
contractCode += "\n__embarkContext.execWhenReady(function() {\n";
contractCode += "\n" + contractName + ".setProvider(web3.currentProvider);\n";
contractCode += "\n});\n";
contractCode += "export default " + contractName + ";\n";
callback(null, contractCode);
});
}
buildWeb3JS(cb) {
const self = this;
let code = "";
async.waterfall([
function getWeb3Location(next) {
self.events.request("version:get:web3", function(web3Version) {
if (web3Version === "1.0.0-beta") {
return next(null, utils.joinPath(fs.embarkPath("js/web3-1.0.min.js")));
} else {
self.events.request("version:getPackageLocation", "web3", web3Version, function(err, location) {
return next(null, fs.dappPath(location));
});
}
});
},
function getImports(web3Location, next) {
web3Location = web3Location.replace(/\\/g, '/'); // Import paths must always have forward slashes
code += "\nimport Web3 from '" + web3Location + "';\n";
code += "\n if (typeof web3 !== 'undefined') {";
code += "\n } else {";
code += "\n var web3 = new Web3();\n";
code += "\n }";
self.events.request('provider-code', function(providerCode) {
code += providerCode;
code += "\nglobal.__embarkContext = __mainContext.__loadManagerInstance;\n";
code += "\nwindow.web3 = web3;\n";
code += "\nexport default web3;\n";
next();
});
},
function makeDirectory(next) {
fs.mkdirp(fs.dappPath(".embark"), (err, _result) => {
next(err);
});
},
function writeFile(next) {
fs.writeFile(fs.dappPath(".embark", 'web3_instance.js'), code, next);
}
], cb);
}
}
module.exports = Pipeline;