embark-area-51/lib/core/config.js

265 lines
8.9 KiB
JavaScript

var fs = require('./fs.js');
var Plugins = require('./plugins.js');
var utils = require('./utils.js');
// TODO: add wrapper for fs so it can also work in the browser
// can work with both read and save
var Config = function(options) {
this.env = options.env;
this.blockchainConfig = {};
this.contractsConfig = {};
this.pipelineConfig = {};
this.chainTracker = {};
this.assetFiles = {};
this.contractsFiles = [];
this.configDir = options.configDir || 'config/';
this.chainsFile = options.chainsFile || './chains.json';
this.plugins = options.plugins;
this.logger = options.logger;
};
Config.prototype.loadConfigFiles = function(options) {
var interceptLogs = options.interceptLogs;
if (options.interceptLogs === undefined) {
interceptLogs = true;
}
//Check if the config file exists
var embarkConfigExists = fs.existsSync(options.embarkConfig);
if(!embarkConfigExists){
this.logger.error('Cannot find file ' + options.embarkConfig + '. Please ensure you are running this command inside the Dapp folder');
process.exit(1);
}
this.embarkConfig = fs.readJSONSync(options.embarkConfig);
this.embarkConfig.plugins = this.embarkConfig.plugins || {};
this.plugins = new Plugins({plugins: this.embarkConfig.plugins, logger: this.logger, interceptLogs: interceptLogs});
this.plugins.loadPlugins();
this.loadEmbarkConfigFile();
this.loadBlockchainConfigFile();
this.loadStorageConfigFile();
this.loadCommunicationConfigFile();
this.loadPipelineConfigFile();
this.loadContractsConfigFile();
this.loadChainTrackerFile();
this.loadPluginContractFiles();
};
Config.prototype.reloadConfig = function() {
this.loadEmbarkConfigFile();
this.loadBlockchainConfigFile();
this.loadStorageConfigFile();
this.loadCommunicationConfigFile();
this.loadPipelineConfigFile();
this.loadContractsConfigFile();
this.loadChainTrackerFile();
};
Config.prototype.loadBlockchainConfigFile = function() {
var defaultBlockchainConfig = fs.readJSONSync(this.configDir + "blockchain.json");
this.blockchainConfig = defaultBlockchainConfig[this.env] || {};
if (this.blockchainConfig.enabled === undefined) {
this.blockchainConfig.enabled = true;
}
};
Config.prototype.loadContractsConfigFile = function() {
var configObject = {};
var configPlugins = this.plugins.getPluginsFor('contractsConfig');
if (configPlugins.length > 0) {
configPlugins.forEach(function(plugin) {
plugin.contractsConfigs.forEach(function(pluginConfig) {
configObject = utils.recursiveMerge(configObject, pluginConfig);
});
});
}
var contractsConfig = fs.readJSONSync(this.configDir + "contracts.json");
configObject = utils.recursiveMerge(configObject, contractsConfig);
var defaultContractsConfig = configObject['default'];
var envContractsConfig = configObject[this.env];
var mergedConfig = utils.recursiveMerge(defaultContractsConfig, envContractsConfig);
this.contractsConfig = mergedConfig;
};
Config.prototype.loadStorageConfigFile = function() {
var configObject = {};
//var configPlugins = this.plugins.getPluginsFor('storageConfig');
//if (configPlugins.length > 0) {
// configPlugins.forEach(function(plugin) {
// plugin.contractsConfigs.forEach(function(pluginConfig) {
// configObject = utils.recursiveMerge(configObject, pluginConfig);
// });
// });
//}
var storageConfig = fs.readJSONSync(this.configDir + "storage.json");
configObject = utils.recursiveMerge(configObject, storageConfig);
var defaultStorageConfig = configObject['default'];
var envStorageConfig = configObject[this.env];
var mergedConfig = utils.recursiveMerge(defaultStorageConfig, envStorageConfig);
this.storageConfig = mergedConfig || {};
if (this.storageConfig.enabled === undefined) {
this.storageConfig.enabled = true;
}
if (this.storageConfig.available_providers === undefined) {
this.storageConfig.available_providers = [];
}
};
Config.prototype.loadCommunicationConfigFile = function() {
var configObject = {};
//var configPlugins = this.plugins.getPluginsFor('communicationConfig');
//if (configPlugins.length > 0) {
// configPlugins.forEach(function(plugin) {
// plugin.contractsConfigs.forEach(function(pluginConfig) {
// configObject = utils.recursiveMerge(configObject, pluginConfig);
// });
// });
//}
var communicationConfig = fs.readJSONSync(this.configDir + "communication.json");
configObject = utils.recursiveMerge(configObject, communicationConfig);
var defaultCommunicationConfig = configObject['default'];
var envCommunicationConfig = configObject[this.env];
var mergedConfig = utils.recursiveMerge(defaultCommunicationConfig, envCommunicationConfig);
this.communicationConfig = mergedConfig || {};
if (this.communicationConfig.enabled === undefined) {
this.communicationConfig.enabled = true;
}
if (this.communicationConfig.available_providers === undefined) {
this.communicationConfig.available_providers = [];
}
};
Config.prototype.loadEmbarkConfigFile = function() {
var contracts = this.embarkConfig.contracts;
this.contractsFiles = this.loadFiles(contracts);
this.buildDir = this.embarkConfig.buildDir;
this.configDir = this.embarkConfig.config;
};
Config.prototype.loadPipelineConfigFile = function() {
var assets = this.embarkConfig.app;
for(var targetFile in assets) {
this.assetFiles[targetFile] = this.loadFiles(assets[targetFile]);
}
};
Config.prototype.loadChainTrackerFile = function() {
//var self = this;
var chainTracker;
try {
chainTracker = fs.readJSONSync(this.chainsFile);
}
catch(err) {
//self.logger.info(this.chainsFile + ' file not found, creating it...');
chainTracker = {};
fs.writeJSONSync(this.chainsFile, {});
}
this.chainTracker = chainTracker;
};
Config.prototype.loadFiles = function(files) {
var self = this;
var originalFiles = utils.filesMatchingPattern(files);
var readFiles = [];
// get embark.js object first
originalFiles.filter(function(file) {
return file.indexOf('.') >= 0;
}).filter(function(file) {
if (file === 'embark.js') {
if (self.blockchainConfig.enabled || self.communicationConfig.provider === 'whisper' || self.communicationConfig.available_providers.indexOf('whisper') >= 0) {
readFiles.push({filename: 'web3.js', content: fs.readFileSync(fs.embarkPath("js/web3.js")).toString(), path: fs.embarkPath("js/web3.js")});
}
if (self.storageConfig.enabled && (self.storageConfig.provider === 'ipfs' || self.storageConfig.available_providers.indexOf('ipfs') >= 0)) {
readFiles.push({filename: 'ipfs.js', content: fs.readFileSync(fs.embarkPath("js/ipfs.js")).toString(), path: fs.embarkPath("js/ipfs.js")});
}
if (self.communicationConfig.enabled && (self.communicationConfig.provider === 'orbit' || self.communicationConfig.available_providers.indexOf('orbit') >= 0)) {
// TODO: remove duplicated files if functionality is the same for storage and orbit
readFiles.push({filename: 'ipfs-api.js', content: fs.readFileSync(fs.embarkPath("js/ipfs-api.min.js")).toString(), path: fs.embarkPath("js/ipfs-api.min.js")});
readFiles.push({filename: 'orbit.js', content: fs.readFileSync(fs.embarkPath("js/orbit.min.js")).toString(), path: fs.embarkPath("js/orbit.min.js")});
}
readFiles.push({filename: 'embark.js', content: fs.readFileSync(fs.embarkPath("js/build/embark.bundle.js")).toString(), path: fs.embarkPath("js/build/embark.bundle.js")});
}
});
// get plugins
var filesFromPlugins = [];
var filePlugins = self.plugins.getPluginsFor('pipelineFiles');
if (filePlugins.length > 0) {
filePlugins.forEach(function(plugin) {
try {
var fileObjects = plugin.runFilePipeline();
for (var i=0; i < fileObjects.length; i++) {
var fileObject = fileObjects[i];
filesFromPlugins.push(fileObject);
}
}
catch(err) {
self.logger.error(err.message);
}
});
}
filesFromPlugins.filter(function(file) {
if (utils.fileMatchesPattern(files, file.intendedPath)) {
readFiles.push(file);
}
});
// get user files
originalFiles.filter(function(file) {
return file.indexOf('.') >= 0;
}).filter(function(file) {
if (file === 'embark.js') {
return;
} else if (file === 'abi.js') {
readFiles.push({filename: file, content: "", path: file});
} else {
readFiles.push({filename: file, content: fs.readFileSync(file).toString(), path: file});
}
});
return readFiles;
};
Config.prototype.loadPluginContractFiles = function() {
var self = this;
var contractsPlugins = this.plugins.getPluginsFor('contractFiles');
if (contractsPlugins.length > 0) {
contractsPlugins.forEach(function(plugin) {
plugin.contractsFiles.forEach(function(file) {
var filename = file.replace('./','');
self.contractsFiles.push({filename: filename, content: plugin.loadPluginFile(file), path: plugin.pathToFile(file)});
});
});
}
};
module.exports = Config;