add storageProcessesLauncher that can work for swarm or ipfs

lib/constants.json

@@ -36,5 +36,9 @@
     "blockchainReady": "blockchainReady",
     "init": "init",
     "initiated": "initiated"
+  },
+  "storage": {
+    "init": "init",
+    "initiated": "initiated"
   }
 }

lib/index.js

@@ -285,6 +285,7 @@ class Embark {
   }
 
   upload(options) {
+    const StorageProcessesLauncher = require('./processes/storageProcesses/storageProcessesLauncher');
 
     this.context = options.context || [constants.contexts.upload, constants.contexts.build];
 
@@ -336,15 +337,17 @@ class Embark {
         }
         checkFn.fn(function (serviceCheckResult) {
           if (!serviceCheckResult.status || serviceCheckResult.status === 'off') {
-            engine.events.emit(constants.process.processLaunchRequest, platform.toLowerCase());
-            engine.events.on(constants.process.processLaunchComplete, (processName) => {
-              if (platform.toLowerCase() !== processName) {
-                return;
+            const storageProcessesLauncher = new StorageProcessesLauncher({
+              logger: engine.logger,
+              events: engine.events
+            });
+            return storageProcessesLauncher.launchProcess(platform.toLowerCase(), (err) => {
+              if (err) {
+                engine.logger.error(err);
+                return callback({message: __('Cannot upload: {{platform}} node is not running on {{protocol}}://{{host}}:{{port}}.', {platform: platform, protocol: engine.config.storageConfig.protocol, host: engine.config.storageConfig.host, port: engine.config.storageConfig.port})});
               }
-              console.log('GOT STUFF');
               callback();
             });
-            //return callback({message: __('Cannot upload: {{platform}} node is not running on {{protocol}}://{{host}}:{{port}}.', {platform: platform, protocol: engine.config.storageConfig.protocol, host: engine.config.storageConfig.host, port: engine.config.storageConfig.port})});
           }
           callback();
         });

lib/modules/ipfs/index.js

@@ -3,8 +3,6 @@ let utils = require('../../utils/utils.js');
 let fs = require('../../core/fs.js');
 let RunCode = require('../../coderunner/runCode');
 let IpfsApi = require('ipfs-api');
-const ProcessLauncher = require('../../process/ProcessLauncher');
-const constants = require('../../constants');
 
 class IPFS {
 
@@ -36,30 +34,6 @@ class IPFS {
     this.embark.registerUploadCommand('ipfs', upload_ipfs.deploy.bind(upload_ipfs));
   }
 
-  processExited(code) {
-    this.logger.error('IPFS process ended before the end of this process. Code: ' + code);
-  }
-
-  watchForProcessLaunch() {
-    const self = this;
-    self.events.on(constants.process.processLaunchRequest, (processName) => {
-      if (processName !== 'ipfs' || self.ipfsProcess) {
-        return;
-      }
-
-      self.ipfsProcess = new ProcessLauncher({
-        modulePath: utils.joinPath(__dirname, './ipfsProcess.js'),
-        logger: self.logger,
-        events: self.events,
-        silent: true,
-        exitCallback: self.processExited.bind(this)
-      });
-      self.ipfsProcess.send({action: constants.blockchain.init, options: {}});
-
-      self.events.emit(constants.process.processLaunchComplete, 'ipfs');
-    });
-  }
-
   setServiceCheck() {
     let self = this;
 
@@ -85,7 +59,7 @@ class IPFS {
     }
 
     self.addCheck('IPFS', function (cb) {
-      self.logger.info("Checking IPFS version...");
+      self.logger.trace("Checking IPFS version...");
       utils.httpGetJson('http://' + self.host + ':' + self.port + '/api/v0/version', function (err, body) {
         if (err) {
           self.logger.trace("Check IPFS version error: " + err);

lib/processes/storageProcesses/ipfs.js

@@ -12,7 +12,7 @@ class IPFSProcess extends ProcessWrapper {
   }
 
   startIPFSDaemon() {
-    shelljs.exec('ipfs daemon', (err, _stdout, _stderr) => {
+    shelljs.exec('ipfs daemon', {silent: true}, (err, _stdout, _stderr) => {
       if (err) {
         console.error(err);
         process.exit(1);
@@ -23,8 +23,8 @@ class IPFSProcess extends ProcessWrapper {
 }
 
 process.on('message', (msg) => {
-  if (msg.action === constants.blockchain.init) {
+  if (msg.action === constants.storage.init) {
     ipfsProcess = new IPFSProcess(msg.options);
-    return ipfsProcess.send({result: constants.blockchain.initiated});
+    return ipfsProcess.send({result: constants.storage.initiated});
   }
 });

lib/processes/storageProcesses/storageProcessesLauncher.js

@@ -0,0 +1,42 @@
+const fs = require('../../core/fs');
+const utils = require('../../utils/utils');
+const ProcessLauncher = require('../../process/ProcessLauncher');
+const constants = require('../../constants');
+
+class StorageProcessesLauncher {
+  constructor(options) {
+    this.logger = options.logger;
+    this.events = options.events;
+    this.processes = {};
+  }
+
+  processExited(storageName, code) {
+    this.logger.error(__(`Storage process for ${storageName} ended before the end of this process. Code: ${code}`));
+  }
+
+  launchProcess(storageName, callback) {
+    const self = this;
+    if (self.processes[storageName]) {
+      return callback(__('Storage process already started'));
+    }
+    const filePath = utils.joinPath(__dirname, `./${storageName}.js`);
+    fs.access(filePath, (err) => {
+      if (err) {
+        callback(__('No process file for this storage type exists. Please start the process locally.'));
+      }
+      self.logger.info(__(`Starting ${storageName} process`).cyan);
+      self.processes[storageName] = new ProcessLauncher({
+        modulePath: filePath,
+        logger: self.logger,
+        events: self.events,
+        silent: true,
+        exitCallback: self.processExited.bind(this, storageName)
+      });
+      self.processes[storageName].send({action: constants.blockchain.init, options: {}});
+
+      callback();
+    });
+  }
+}
+
+module.exports = StorageProcessesLauncher;