patches dev chain reset bug

Bug referenced in #65. Will ignore web3 bug, which arises from expected block hash not exisitng, which can occur in dev environments, using ganache which can rapidly switch between various blockchain snapshots.

bridge.js

@@ -81,6 +81,7 @@ var cliOptions = {
 BridgeCliParse(cliOptions)
 
 var cliConfiguration = BridgeCliParse().getConfiguration()
+BridgeLogManager.passCliConf(cliConfiguration)
 
 console.log('Please wait...')
 

lib/bridge-log-manager.js

@@ -14,6 +14,7 @@ const LogEmitter = new EventEmitter()
 LogEmitter.setMaxListeners(1)
 
 var logsContainer = []
+var cliConfiguration
 
 function BridgeLogManager () {
   this.contractInstance = OracleInstance().getContractInstance()
@@ -127,7 +128,14 @@ const parseLog = function (err, log) {
 
   if (logArgs['gasPrice']) logObj['parsed_log'].gasPrice = logArgs['gasPrice'].toNumber()
 
-  logObj['block_timestamp'] = BlockchainInterface().inter.getBlock(log['blockHash']).timestamp
+  try {
+    logObj['block_timestamp'] = BlockchainInterface().inter.getBlock(log['blockHash']).timestamp
+  } catch (e) {
+    // exception for dev chain resets (ganache)
+    if (e.message === 'Key not found in database' &&
+      cliConfiguration.dev === true) return
+    else throw e
+  }
 
   emitsNewLog(null, logObj)
 }
@@ -146,6 +154,10 @@ const removeAllLogs = function (e, type) {
   } else process.exit()
 }
 
+const passCliConf = function (cliConf) {
+  cliConfiguration = cliConf
+}
+
 process.on('SIGINT', function () {
   removeAllLogs(null, {'clean': true})
 })
@@ -155,3 +167,4 @@ process.on('uncaughtException', removeAllLogs)
 module.exports.init = singleton(BridgeLogManager)
 module.exports.events = LogEmitter
 module.exports.removeAllLogs = removeAllLogs
+module.exports.passCliConf = passCliConf