non-destructively upgrade config

.jshintrc

@@ -26,7 +26,7 @@
   "maxstatements": 25,
   "maxcomplexity": 10,
   "maxdepth": 4,
-  "maxlen": 120,
+  "maxlen": 140,
   "multistr": true,
   "predef": [
   "after",

lib/scaffold/create.js

@@ -9,7 +9,7 @@ var path = require('path');
 var packageFile = require('../../package.json');
 var mkdirp = require('mkdirp');
 var fs = require('fs');
-var defaultBaseConfig = require('./default-base-config');
+var defaultConfig = require('./default-config');
 
 var version = '^' + packageFile.version;
 
@@ -55,7 +55,7 @@ function createConfigDirectory(options, configDir, isGlobal, done) {
     if (err) {
       throw err;
     }
-    var configInfo = defaultBaseConfig(options);
+    var configInfo = defaultConfig(options);
     var config = configInfo.config;
 
     var configJSON = JSON.stringify(config, null, 2);

lib/scaffold/default-config.js

@@ -3,6 +3,11 @@
 var path = require('path');
 var mkdirp = require('mkdirp');
 var fs = require('fs');
+var packageJson = require('../../package');
+
+function getMajorVersion(versionString) {
+  return parseInt(versionString.split('.')[0]);
+}
 
 /**
  * Will return the path and default bitcore-node configuration. It will search for the
@@ -24,6 +29,29 @@ function getDefaultConfig(options) {
     mkdirp.sync(defaultPath);
   }
 
+  if (fs.existsSync(defaultConfigFile)) {
+    var currentConfig = require(defaultConfigFile);
+
+    // config must have a `version` field with major equal to package major version
+    if(currentConfig.version && getMajorVersion(packageJson.version) === getMajorVersion(currentConfig.version)) {
+      return {
+        path: defaultPath,
+        config: currentConfig
+      };
+    }
+
+    console.log(`The configuration file at '${defaultConfigFile}' is incompatible with this version of Bitcore.`);
+
+    var now = new Date();
+    // bitcore-node.YYYY-MM-DD.UnixTimestamp.json
+    var backupFileName = `bitcore-node.${now.getUTCFullYear()}-${now.getUTCMonth()}-${now.getUTCDate()}.${now.getTime()}.json`;
+    var backupFile = path.resolve(defaultPath, backupFileName);
+    fs.renameSync(defaultConfigFile, backupFile);
+    console.log(`The previous configuration file has been moved to: ${backupFile}.`);
+  }
+
+  console.log(`Creating a new configuration file at: ${defaultConfigFile}.`);
+
   var defaultServices = [
     'address',
     'block',
@@ -37,33 +65,28 @@ function getDefaultConfig(options) {
     'web'
   ];
 
-  if (options.additionalServices) {
-    defaultServices = defaultServices.concat(options.additionalServices);
-  }
-
   var defaultDataDir = path.resolve(defaultPath, './data');
 
   if (!fs.existsSync(defaultDataDir)) {
     mkdirp.sync(defaultDataDir);
   }
 
-  if (!fs.existsSync(defaultConfigFile)) {
-    var defaultConfig = {
-      network: 'testnet',
-      port: 3001,
-      services: defaultServices,
-      datadir: defaultDataDir,
-      servicesConfig: {
-        'insight-api': {
-          cwdRequirePath: 'node_modules/insight-api'
-        },
-        'insight-ui': {
-          cwdRequirePath: 'node_modules/insight-ui'
-        }
+  var defaultConfig = {
+    version: packageJson.version,
+    network: 'livenet',
+    port: 3001,
+    services: options.additionalServices ? defaultServices.concat(options.additionalServices) : defaultServices,
+    datadir: defaultDataDir,
+    servicesConfig: {
+      'insight-api': {
+        cwdRequirePath: 'node_modules/insight-api'
+      },
+      'insight-ui': {
+        cwdRequirePath: 'node_modules/insight-ui'
       }
-    };
-    fs.writeFileSync(defaultConfigFile, JSON.stringify(defaultConfig, null, 2));
-  }
+    }
+  };
+  fs.writeFileSync(defaultConfigFile, JSON.stringify(defaultConfig, null, 2));
 
   var config = JSON.parse(fs.readFileSync(defaultConfigFile, 'utf-8'));
 

lib/scaffold/start.js

@@ -86,11 +86,13 @@ function lookInRequirePathConfig(req, service) {
 }
 
 function lookInCwd(req, service) {
-  var location = service.config.cwdRequirePath ? service.config.cwdRequirePath : service.name
+  var location = service.config.cwdRequirePath ? service.config.cwdRequirePath : service.name;
   try {
     return req(process.cwd() + '/' + location);
   } catch(e) {
-    if(e.code !== 'MODULE_NOT_FOUND') log.error(e);
+    if(e.code !== 'MODULE_NOT_FOUND') {
+      log.error(e);
+    }
     log.info('Checked the current working directory for service: ' + location);
   }
 }
@@ -100,7 +102,9 @@ function lookInBuiltInPath(req, service) {
     var serviceFile = path.resolve(__dirname, '../services/' + service.name);
     return req(serviceFile);
   } catch(e) {
-    if(e.code !== 'MODULE_NOT_FOUND') log.error(e);
+    if(e.code !== 'MODULE_NOT_FOUND') {
+      log.error(e);
+    }
     log.info('Checked the built-in path: lib/services, for service: ' + service.name);
   }
 }

lib/services/p2p/index.js

@@ -332,7 +332,7 @@ P2P.prototype._setResourceFilter = function(filter, resource) {
 };
 
 P2P.prototype._startBcoin = function() {
-  const network = ['livenet', 'live', 'main', 'mainnet'].indexOf(this.node.network) !== -1? 'main' : 'testnet';
+  var network = ['livenet', 'live', 'main', 'mainnet'].indexOf(this.node.network) !== -1? 'main' : 'testnet';
   this._bcoin = new Bcoin({
     network: network,
     prefix: this.node.datadir

package.json

@@ -5,7 +5,7 @@
     "node": ">=8.2.0"
   },
   "author": "BitPay <dev@bitpay.com>",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "main": "./index.js",
   "repository": "git://github.com/bitpay/bitcore-node.git",
   "homepage": "https://github.com/bitpay/bitcore-node",