Delay contract deploiement if share bytecode

lib/modules/blockchain_connector/index.js

@@ -20,6 +20,7 @@ class BlockchainConnector {
     this.isDev = options.isDev;
     this.web3Endpoint = '';
     this.isWeb3Ready = false;
+    this.deployers = {};
 
     self.events.setCommandHandler("blockchain:web3:isReady", (cb) => {
       cb(self.isWeb3Ready);
@@ -232,9 +233,29 @@ class BlockchainConnector {
   }
 
   deployContractFromObject(deployContractObject, params, cb) {
+    let deployer = this.deployers[deployContractObject._deployData];
+
+    if (!deployer) {
+      deployer = {running: false, requested: []};
+      this.deployers[deployContractObject._deployData] = deployer;
+    }
+
+    if (deployer.running) {
+      deployer.requested.push({deployContractObject, params, cb});
+      return;
+    }
+
+    deployer.running = true;
     embarkJsUtils.secureSend(this.web3, deployContractObject, {
       from: params.from, gas: params.gas, gasPrice: params.gasPrice
-    }, true, cb);
+    }, true, (error, receipt) => {
+      deployer.running = false;
+      if (deployer.requested.length > 0) {
+        let request = deployer.requested.shift();
+        this.deployContractFromObject(request.deployContractObject, request.params, request.cb);
+      }
+      cb(error, receipt);
+    });
   }
 
   determineDefaultAccount(cb) {