Remove oracle redis lock (#137)

deployment/roles/oracle/defaults/main.yml

@@ -2,6 +2,5 @@ bridge_path: "/home/{{ compose_service_user }}/bridge"
 ALLOW_HTTP: no
 QUEUE_URL: amqp://rabbit
 REDIS_URL: redis://redis
-REDIS_LOCK_TTL: 1000
 syslog_server_port: udp://127.0.0.1:514
 keyfile_path: "/root/.key"

deployment/roles/oracle/templates/.env.j2

@@ -39,4 +39,3 @@ FOREIGN_GAS_PRICE_UPDATE_INTERVAL={{ FOREIGN_GAS_PRICE_UPDATE_INTERVAL }}
 ALLOW_HTTP={{ "yes" if ALLOW_HTTP else "no" }}
 QUEUE_URL={{ QUEUE_URL }}
 REDIS_URL={{ REDIS_URL }}
-REDIS_LOCK_TTL={{ REDIS_LOCK_TTL }}

e2e-commons/docker-compose.yml

@@ -32,7 +32,6 @@ services:
     - ERC20_TOKEN_ADDRESS=0xdbeE25CbE97e4A5CC6c499875774dc7067E9426B
     - VALIDATOR_ADDRESS=0xaaB52d66283F7A1D5978bcFcB55721ACB467384b
     - VALIDATOR_ADDRESS_PRIVATE_KEY=8e829f695aed89a154550f30262f1529582cc49dc30eff74a6b491359e0230f9
-    - REDIS_LOCK_TTL=1000
     - HOME_GAS_PRICE_ORACLE_URL=https://gasprice.poa.network/
     - HOME_GAS_PRICE_SPEED_TYPE=standard
     - HOME_GAS_PRICE_FALLBACK=1
@@ -62,7 +61,6 @@ services:
     - BRIDGEABLE_TOKEN_ADDRESS=0x792455a6bCb62Ed4C4362D323E0590654CA4765c
     - VALIDATOR_ADDRESS=0xaaB52d66283F7A1D5978bcFcB55721ACB467384b
     - VALIDATOR_ADDRESS_PRIVATE_KEY=8e829f695aed89a154550f30262f1529582cc49dc30eff74a6b491359e0230f9
-    - REDIS_LOCK_TTL=1000
     - HOME_GAS_PRICE_ORACLE_URL=https://gasprice.poa.network/
     - HOME_GAS_PRICE_SPEED_TYPE=standard
     - HOME_GAS_PRICE_FALLBACK=1
@@ -92,7 +90,6 @@ services:
     - BRIDGEABLE_TOKEN_ADDRESS=0x792455a6bCb62Ed4C4362D323E0590654CA4765c
     - VALIDATOR_ADDRESS=0xaaB52d66283F7A1D5978bcFcB55721ACB467384b
     - VALIDATOR_ADDRESS_PRIVATE_KEY=8e829f695aed89a154550f30262f1529582cc49dc30eff74a6b491359e0230f9
-    - REDIS_LOCK_TTL=1000
     - HOME_GAS_PRICE_ORACLE_URL=https://gasprice.poa.network/
     - HOME_GAS_PRICE_SPEED_TYPE=standard
     - HOME_GAS_PRICE_FALLBACK=1

oracle/.env.example

@@ -22,7 +22,6 @@ FOREIGN_GAS_PRICE_UPDATE_INTERVAL=600000
 
 QUEUE_URL=amqp://rabbit
 REDIS_URL=redis://redis
-REDIS_LOCK_TTL=1000
 
 HOME_START_BLOCK=
 FOREIGN_START_BLOCK=

oracle/README.md

@@ -189,7 +189,6 @@ where the _watcher_ could be one of:
 | `FOREIGN_START_BLOCK` | The block number in the Foreign network used to start watching for events when the bridge instance runs for the first time. Usually this is the same block where the Foreign Bridge contract was deployed to. If a new validator instance is being deployed for an existing set of validators, the block number could be the latest block in the chain. | integer |
 | `QUEUE_URL` | RabbitMQ URL used by watchers and senders to communicate to the message queue. Typically set to: `amqp://127.0.0.1`. | local URL |
 | `REDIS_URL` | Redis DB URL used by watchers and senders to communicate to the database. Typically set to: `redis://127.0.0.1:6379`. | local URL |
-| `REDIS_LOCK_TTL` | Threshold in milliseconds for locking a resource in the Redis DB. Until the threshold is exceeded, the resource is unlocked. Usually it is `1000`. | integer |
 | `ALLOW_HTTP` | **Only use in test environments - must be omitted in production environments.**. If this parameter is specified and set to `yes`, RPC URLs can be specified in form of HTTP links. A warning that the connection is insecure will be written to the logs. | `yes` / `no` |
 | `LOG_LEVEL` | Set the level of details in the logs. | `trace` / `debug` / `info` / `warn` / `error` / `fatal` |
 | `MAX_PROCESSING_TIME` | The workers processes will be killed if this amount of time (in milliseconds) is ellapsed before they finish processing. It is recommended to set this value to 4 times the value of the longest polling time (set with the `HOME_POLLING_INTERVAL` and `FOREIGN_POLLING_INTERVAL` variables). To disable this, set the time to 0. | integer |

oracle/package.json

@@ -31,7 +31,6 @@
     "pino-pretty": "^2.0.1",
     "promise-limit": "^2.7.0",
     "promise-retry": "^1.1.1",
-    "redlock": "^3.1.2",
     "web3": "1.0.0-beta.34",
     "web3-utils": "1.0.0-beta.34"
   },

oracle/src/sender.js

@@ -1,7 +1,7 @@
 require('../env')
 const path = require('path')
 const { connectSenderToQueue } = require('./services/amqpClient')
-const { redis, redlock } = require('./services/redisClient')
+const { redis } = require('./services/redisClient')
 const GasPrice = require('./services/gasPrice')
 const logger = require('./services/logger')
 const rpcUrlsManager = require('./services/getRpcUrlsManager')
@@ -18,7 +18,7 @@ const {
 } = require('./utils/utils')
 const { EXIT_CODES, EXTRA_GAS_PERCENTAGE } = require('./utils/constants')
 
-const { VALIDATOR_ADDRESS_PRIVATE_KEY, REDIS_LOCK_TTL } = process.env
+const { VALIDATOR_ADDRESS_PRIVATE_KEY } = process.env
 
 const VALIDATOR_ADDRESS = privateKeyToAddress(VALIDATOR_ADDRESS_PRIVATE_KEY)
 
@@ -30,7 +30,6 @@ if (process.argv.length < 3) {
 const config = require(path.join('../config/', process.argv[2]))
 
 const web3Instance = config.web3
-const nonceLock = `lock:${config.id}:nonce`
 const nonceKey = `${config.id}:nonce`
 let chainId = 0
 
@@ -102,11 +101,6 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry }) {
     logger.info(`Msg received with ${txArray.length} Tx to send`)
     const gasPrice = GasPrice.getPrice()
 
-    const ttl = REDIS_LOCK_TTL * txArray.length
-
-    logger.debug('Acquiring lock')
-    const lock = await redlock.lock(nonceLock, ttl)
-
     let nonce = await readNonce()
     let insufficientFunds = false
     let minimumBalance = null
@@ -162,9 +156,6 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry }) {
     logger.debug('Updating nonce')
     await updateNonce(nonce)
 
-    logger.debug('Releasing lock')
-    await lock.unlock()
-
     if (failedTx.length) {
       logger.info(`Sending ${failedTx.length} Failed Tx to Queue`)
       await scheduleForRetry(failedTx, msg.properties.headers['x-retries'])

oracle/src/services/redisClient.js

@@ -1,14 +1,7 @@
 const Redis = require('ioredis')
-const Redlock = require('redlock')
 const logger = require('./logger')
 
 const redis = new Redis(process.env.REDIS_URL)
-const redlock = new Redlock([redis], {
-  driftFactor: 0.01,
-  retryCount: 200,
-  retryDelay: 500,
-  retryJitter: 500
-})
 
 redis.on('connect', () => {
   logger.info('Connected to redis')
@@ -19,6 +12,5 @@ redis.on('error', () => {
 })
 
 module.exports = {
-  redis,
+  redis
-  redlock
 }

yarn.lock

@@ -2089,13 +2089,6 @@ async@1.x, async@^1.5.2:
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
-async@2.6.1:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
-  integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
-  dependencies:
-    lodash "^4.17.10"
-
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -2407,13 +2400,6 @@ binary-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.13.1.tgz#598afe54755b2868a5330d2aff9d4ebb53209b65"
   integrity sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==
 
-bindings@^1.2.1:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
-  integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
-  dependencies:
-    file-uri-to-path "1.0.0"
-
 bitsyntax@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/bitsyntax/-/bitsyntax-0.1.0.tgz#b0c59acef03505de5a2ed62a2f763c56ae1d6205"
@@ -2448,7 +2434,7 @@ bluebird@^2.9.34:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-2.11.0.tgz#534b9033c022c9579c56ba3b3e5a5caafbb650e1"
   integrity sha1-U0uQM8AiyVecVro7Plpcqvu2UOE=
 
-bluebird@^3.3.3, bluebird@^3.3.4, bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.2, bluebird@^3.5.3:
+bluebird@^3.3.4, bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.2, bluebird@^3.5.3:
   version "3.5.4"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.4.tgz#d6cc661595de30d5b3af5fcedd3c0b3ef6ec5714"
   integrity sha512-FG+nFEZChJrbQ9tIccIfZJBz3J7mLrAhxakAbnrJWn8d7aKOC+LWifa0G+p4ZqKp4y13T7juYvdhq9NzKdsrjw==
@@ -5187,38 +5173,11 @@ file-type@^6.1.0:
   resolved "https://registry.yarnpkg.com/file-type/-/file-type-6.2.0.tgz#e50cd75d356ffed4e306dc4f5bcf52a79903a919"
   integrity sha512-YPcTBDV+2Tm0VqjybVd32MHdlEGAtuxS3VAYsumFokDSMG+ROT5wawGlnHDoz7bfMcMDt9hxuXvXwoKUx2fkOg==
 
-file-uri-to-path@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
-  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
-
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
   integrity sha1-wcS5vuPglyXdsQa3XB4wH+LxiyY=
 
-filename-reserved-regex@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/filename-reserved-regex/-/filename-reserved-regex-1.0.0.tgz#e61cf805f0de1c984567d0386dc5df50ee5af7e4"
-  integrity sha1-5hz4BfDeHJhFZ9A4bcXfUO5a9+Q=
-
-filenamify-url@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/filenamify-url/-/filenamify-url-1.0.0.tgz#b32bd81319ef5863b73078bed50f46a4f7975f50"
-  integrity sha1-syvYExnvWGO3MHi+1Q9GpPeXX1A=
-  dependencies:
-    filenamify "^1.0.0"
-    humanize-url "^1.0.0"
-
-filenamify@^1.0.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/filenamify/-/filenamify-1.2.1.tgz#a9f2ffd11c503bed300015029272378f1f1365a5"
-  integrity sha1-qfL/0RxQO+0wABUCknI3jx8TZaU=
-  dependencies:
-    filename-reserved-regex "^1.0.0"
-    strip-outer "^1.0.0"
-    trim-repeated "^1.0.0"
-
 filesize@3.6.1:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/filesize/-/filesize-3.6.1.tgz#090bb3ee01b6f801a8a8be99d31710b3422bb317"
@@ -5456,17 +5415,6 @@ fs-extra@7.0.1, fs-extra@^7.0.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
-fs-extra@^0.30.0:
-  version "0.30.0"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.30.0.tgz#f233ffcc08d4da7d432daa449776989db1df93f0"
-  integrity sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=
-  dependencies:
-    graceful-fs "^4.1.2"
-    jsonfile "^2.1.0"
-    klaw "^1.0.0"
-    path-is-absolute "^1.0.0"
-    rimraf "^2.2.8"
-
 fs-extra@^2.0.0, fs-extra@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-2.1.2.tgz#046c70163cef9aad46b0e4a7fa467fb22d71de35"
@@ -5650,19 +5598,6 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-gh-pages@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/gh-pages/-/gh-pages-1.2.0.tgz#1acb92801078f7c038a167f447221d1496ccfbee"
-  integrity sha512-cGLYAvxtlQ1iTwAS4g7FreZPXoE/g62Fsxln2mmR19mgs4zZI+XJ+wVVUhBFCF/0+Nmvbq+abyTWue1m1BSnmg==
-  dependencies:
-    async "2.6.1"
-    commander "2.15.1"
-    filenamify-url "^1.0.0"
-    fs-extra "^5.0.0"
-    globby "^6.1.0"
-    graceful-fs "4.1.11"
-    rimraf "^2.6.2"
-
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -5837,12 +5772,7 @@ got@^6.7.1:
     unzip-response "^2.0.1"
     url-parse-lax "^1.0.0"
 
-graceful-fs@4.1.11:
+graceful-fs@^4.1.10, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
-  version "4.1.11"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
-  integrity sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=
-
-graceful-fs@^4.1.10, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
@@ -6255,14 +6185,6 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
   integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
-humanize-url@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/humanize-url/-/humanize-url-1.0.1.tgz#f4ab99e0d288174ca4e1e50407c55fbae464efff"
-  integrity sha1-9KuZ4NKIF0yk4eUEB8VfuuRk7/8=
-  dependencies:
-    normalize-url "^1.0.0"
-    strip-url-auth "^1.0.0"
-
 iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
@@ -6820,7 +6742,7 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
-is-plain-obj@^1.0.0, is-plain-obj@^1.1.0:
+is-plain-obj@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
   integrity sha1-caUMhCnfync8kqOQpKA7OfzVHT4=
@@ -7712,16 +7634,6 @@ just-extend@^4.0.2:
   resolved "https://registry.yarnpkg.com/just-extend/-/just-extend-4.0.2.tgz#f3f47f7dfca0f989c55410a7ebc8854b07108afc"
   integrity sha512-FrLwOgm+iXrPV+5zDU6Jqu4gCRXbWEQg2O3SKONsWE4w7AXFRkryS53bpWdaL9cNol+AmR3AEYz6kn+o0fCPnw==
 
-keccak@^1.0.2:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/keccak/-/keccak-1.4.0.tgz#572f8a6dbee8e7b3aa421550f9e6408ca2186f80"
-  integrity sha512-eZVaCpblK5formjPjeTBik7TAg+pqnDrMHIffSvi9Lh7PQgM1+hSzakUeZFCk9DVVG0dacZJuaz2ntwlzZUIBw==
-  dependencies:
-    bindings "^1.2.1"
-    inherits "^2.0.3"
-    nan "^2.2.1"
-    safe-buffer "^5.1.0"
-
 keccakjs@^0.2.1:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.3.tgz#5e4e969ce39689a3861f445d7752ee3477f9fe72"
@@ -7766,13 +7678,6 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
   integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
-klaw@^1.0.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
-  integrity sha1-QIhDO0azsbolnXh4XY6W9zugJDk=
-  optionalDependencies:
-    graceful-fs "^4.1.9"
-
 kleur@^3.0.2:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
@@ -8222,11 +8127,6 @@ memory-fs@^0.4.0, memory-fs@^0.4.1, memory-fs@~0.4.1:
     errno "^0.1.3"
     readable-stream "^2.0.1"
 
-memorystream@^0.3.1:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/memorystream/-/memorystream-0.3.1.tgz#86d7090b30ce455d63fbae12dda51a47ddcaf9b2"
-  integrity sha1-htcJCzDORV1j+64S3aUaR93K+bI=
-
 meow@^3.7.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
@@ -8491,23 +8391,7 @@ mobx@^4.0.2:
   resolved "https://registry.yarnpkg.com/mobx/-/mobx-4.9.4.tgz#bb37a0e4e05f0b02be89ced9d23445cad73377ad"
   integrity sha512-RaEpydw7D1ebp1pdFHrEMZcLk4nALAZyHAroCPQpqLzuIXIxJpLmMIe5PUZwYHqvlcWL6DVqDYCANZpPOi9iXA==
 
-mocha@^4.1.0:
+mocha@5.2.0, mocha@^5.2.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.1.0.tgz#7d86cfbcf35cb829e2754c32e17355ec05338794"
-  integrity sha512-0RVnjg1HJsXY2YFDoTNzcc1NKhYuXKRrBAG2gDygmJJA136Cs2QlRliZG1mA0ap7cuaT30mw16luAeln+4RiNA==
-  dependencies:
-    browser-stdout "1.3.0"
-    commander "2.11.0"
-    debug "3.1.0"
-    diff "3.3.1"
-    escape-string-regexp "1.0.5"
-    glob "7.1.2"
-    growl "1.10.3"
-    he "1.1.1"
-    mkdirp "0.5.1"
-    supports-color "4.4.0"
-
-mocha@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.2.0.tgz#6d8ae508f59167f940f2b5b3c4a612ae50c90ae6"
   integrity sha512-2IUgKDhc3J7Uug+FxMXuqIyYzH7gJjXECKe/w43IGgQHTSj3InJi+yAA7T24L9bQMRKiUEHxEX37G5JpVUGLcQ==
@@ -8524,6 +8408,22 @@ mocha@^5.2.0:
     mkdirp "0.5.1"
     supports-color "5.4.0"
 
+mocha@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.1.0.tgz#7d86cfbcf35cb829e2754c32e17355ec05338794"
+  integrity sha512-0RVnjg1HJsXY2YFDoTNzcc1NKhYuXKRrBAG2gDygmJJA136Cs2QlRliZG1mA0ap7cuaT30mw16luAeln+4RiNA==
+  dependencies:
+    browser-stdout "1.3.0"
+    commander "2.11.0"
+    debug "3.1.0"
+    diff "3.3.1"
+    escape-string-regexp "1.0.5"
+    glob "7.1.2"
+    growl "1.10.3"
+    he "1.1.1"
+    mkdirp "0.5.1"
+    supports-color "4.4.0"
+
 mock-fs@^4.1.0:
   version "4.10.0"
   resolved "https://registry.yarnpkg.com/mock-fs/-/mock-fs-4.10.0.tgz#1d017f797416c9f4879dd58ee9438d8b9323a731"
@@ -8598,7 +8498,7 @@ nan@2.13.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
   integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
 
-nan@^2.0.8, nan@^2.11.0, nan@^2.12.1, nan@^2.13.2, nan@^2.2.1, nan@^2.3.3:
+nan@^2.0.8, nan@^2.11.0, nan@^2.12.1, nan@^2.13.2, nan@^2.3.3:
   version "2.14.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
@@ -8885,16 +8785,6 @@ normalize-range@^0.1.2:
   resolved "https://registry.yarnpkg.com/normalize-range/-/normalize-range-0.1.2.tgz#2d10c06bdfd312ea9777695a4d28439456b75942"
   integrity sha1-LRDAa9/TEuqXd2laTShDlFa3WUI=
 
-normalize-url@^1.0.0:
-  version "1.9.1"
-  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-1.9.1.tgz#2cc0d66b31ea23036458436e3620d85954c66c3c"
-  integrity sha1-LMDWazHqIwNkWENuNiDYWVTGbDw=
-  dependencies:
-    object-assign "^4.0.1"
-    prepend-http "^1.0.0"
-    query-string "^4.1.0"
-    sort-keys "^1.0.0"
-
 normalize-url@^3.0.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
@@ -10313,7 +10203,7 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
-prepend-http@^1.0.0, prepend-http@^1.0.1:
+prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
   integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
@@ -10558,14 +10448,6 @@ qs@~6.5.2:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
-query-string@^4.1.0:
-  version "4.3.4"
-  resolved "https://registry.yarnpkg.com/query-string/-/query-string-4.3.4.tgz#bbb693b9ca915c232515b228b1a02b609043dbeb"
-  integrity sha1-u7aTucqRXCMlFbIosaArYJBD2+s=
-  dependencies:
-    object-assign "^4.1.0"
-    strict-uri-encode "^1.0.0"
-
 query-string@^5.0.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/query-string/-/query-string-5.1.1.tgz#a78c012b71c17e05f2e3fa2319dd330682efb3cb"
@@ -11002,13 +10884,6 @@ redis-parser@^2.4.0:
   resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
   integrity sha1-Uu0J2srBCPGmMcB+m2mUHnoZUEs=
 
-redlock@^3.1.2:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/redlock/-/redlock-3.1.2.tgz#27c82534da8548027aa8d61084a08078ae74ed36"
-  integrity sha512-CKXhOvLd4In5QOfbcF0GIcSsa+pL9JPZd+eKeMk/Sydxh93NUNtwQMTIKFqwPu3PjEgDStwYFJTurVzNA33pZw==
-  dependencies:
-    bluebird "^3.3.3"
-
 regenerate-unicode-properties@^8.0.2:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/regenerate-unicode-properties/-/regenerate-unicode-properties-8.1.0.tgz#ef51e0f0ea4ad424b77bf7cb41f3e015c70a3f0e"
@@ -11229,7 +11104,7 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
-require-from-string@^2.0.0, require-from-string@^2.0.1:
+require-from-string@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
   integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
@@ -11511,7 +11386,7 @@ select-hose@^2.0.0:
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
   integrity sha1-Yl2GWPhlr0Psliv8N2o3NZpJlMo=
 
-selenium-webdriver@^3.6.0:
+selenium-webdriver@3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/selenium-webdriver/-/selenium-webdriver-3.6.0.tgz#2ba87a1662c020b8988c981ae62cb2a01298eafc"
   integrity sha512-WH7Aldse+2P5bbFBO4Gle/nuQOdVwpHMTL6raL3uuBj/vPG07k6uzt3aiahu352ONBr5xXh0hDlM3LhtXPOC4Q==
@@ -11880,18 +11755,6 @@ sol-explore@^1.6.2:
   resolved "https://registry.yarnpkg.com/sol-explore/-/sol-explore-1.6.2.tgz#43ae8c419fd3ac056a05f8a9d1fb1022cd41ecc2"
   integrity sha1-Q66MQZ/TrAVqBfip0fsQIs1B7MI=
 
-solc@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/solc/-/solc-0.5.0.tgz#2deb2ae992acac3afb909f85c38d00f01dcb335e"
-  integrity sha512-mdLHDl9WeYrN+FIKcMc9PlPfnA9DG9ur5QpCDKcv6VC4RINAsTF4EMuXMZMKoQTvZhtLyJIVH/BZ+KU830Z8Xg==
-  dependencies:
-    fs-extra "^0.30.0"
-    keccak "^1.0.2"
-    memorystream "^0.3.1"
-    require-from-string "^2.0.0"
-    semver "^5.5.0"
-    yargs "^11.0.0"
-
 solidity-coverage@^0.5.11:
   version "0.5.11"
   resolved "https://registry.yarnpkg.com/solidity-coverage/-/solidity-coverage-0.5.11.tgz#1ee45f6d98b75a615aadb8f9aa7db4a2b32258e7"
@@ -11927,13 +11790,6 @@ solidity-parser-sc@0.4.11:
     pegjs "^0.10.0"
     yargs "^4.6.0"
 
-sort-keys@^1.0.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-1.1.2.tgz#441b6d4d346798f1b4e49e8920adfba0e543f9ad"
-  integrity sha1-RBttTTRnmPG05J6JIK37oOVD+a0=
-  dependencies:
-    is-plain-obj "^1.0.0"
-
 source-list-map@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
@@ -12341,18 +12197,6 @@ strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
-strip-outer@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/strip-outer/-/strip-outer-1.0.1.tgz#b2fd2abf6604b9d1e6013057195df836b8a9d631"
-  integrity sha512-k55yxKHwaXnpYGsOzg4Vl8+tDrWylxDEpknGjhTiZB8dFRU5rTo9CAzeycivxV3s+zlTKwrs6WxMxR95n26kwg==
-  dependencies:
-    escape-string-regexp "^1.0.2"
-
-strip-url-auth@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/strip-url-auth/-/strip-url-auth-1.0.1.tgz#22b0fa3a41385b33be3f331551bbb837fa0cd7ae"
-  integrity sha1-IrD6OkE4WzO+PzMVUbu4N/oM164=
-
 style-loader@0.23.1:
   version "0.23.1"
   resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.23.1.tgz#cb9154606f3e771ab6c4ab637026a1049174d925"
@@ -12823,13 +12667,6 @@ trim-newlines@^1.0.0:
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
   integrity sha1-WIeWa7WCpFA6QetST301ARgVphM=
 
-trim-repeated@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/trim-repeated/-/trim-repeated-1.0.0.tgz#e3646a2ea4e891312bf7eace6cfb05380bc01c21"
-  integrity sha1-42RqLqTokTEr9+rObPsFOAvAHCE=
-  dependencies:
-    escape-string-regexp "^1.0.2"
-
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
@@ -12858,15 +12695,14 @@ truffle-flattener@^1.2.3:
     solidity-parser-antlr "^0.4.0"
     tsort "0.0.1"
 
-truffle@^5.0.15:
+truffle@^5.0.18:
-  version "5.0.19"
+  version "5.0.26"
-  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.0.19.tgz#3187f11168ed526ffa17cfa6a0d9735208569381"
+  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.0.26.tgz#cb9a6dcd77501821ba6e8ba51b2d4eef58da7458"
-  integrity sha512-d4fxChHYCjccW33IO/4KLcGqjTDn+mw7vqdGvGi307CMo+KTtns+5c91+1iOKDQcSKiv8SHYgvtyF7cn/+FPAg==
+  integrity sha512-gf3Khot59ZM2Tegqb2md0lpr1SXGUHKJkSajCyXsiFCiiHUbX6NpXn/mgJgk1SXt7FAHpL0zYdLI1pYfqzvBFw==
   dependencies:
     app-module-path "^2.2.0"
-    mocha "^4.1.0"
+    mocha "5.2.0"
     original-require "1.0.1"
-    solc "0.5.0"
 
 ts-pnp@1.1.2, ts-pnp@^1.0.0:
   version "1.1.2"
@@ -14416,7 +14252,7 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@11.1.0, yargs@^11.0.0:
+yargs@11.1.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
   integrity sha512-NwW69J42EsCSanF8kyn5upxvjp5ds+t3+udGBeTbFnERA+lF541DDpMawzo4z6W/QrzNM18D+BPMiOBibnFV5A==