From c6eea4b1306c3c44c539a67872b0e7bd8beaf7b5 Mon Sep 17 00:00:00 2001
From: cgewecke <christophergewecke@gmail.com>
Date: Sun, 4 Feb 2024 17:28:36 -0800
Subject: [PATCH] Remove ganache-cli related code from API & tests (#849)

---
 README.md                                     |   6 +-
 docs/advanced.md                              |   2 +-
 docs/api.md                                   |  69 ++++-------
 lib/api.js                                    | 109 +----------------
 lib/ui.js                                     |  12 --
 package.json                                  |   2 -
 plugins/hardhat.plugin.js                     |  51 ++++----
 plugins/resources/nomiclabs.ui.js             |  18 +--
 plugins/resources/nomiclabs.utils.js          |  84 +++----------
 plugins/resources/plugin.utils.js             |  31 -----
 test/integration/errors.js                    |  34 +-----
 test/integration/flags.js                     |  33 -----
 test/integration/standard.js                  |  88 --------------
 .../projects/ganache-solcoverjs/.gitignore    |   1 -
 .../projects/ganache-solcoverjs/.solcover.js  |   5 -
 .../contracts/ContractA.sol                   |  17 ---
 .../contracts/ContractB.sol                   |  17 ---
 .../contracts/ContractC.sol                   |  17 ---
 .../contracts/Migrations.sol                  |  23 ----
 .../ganache-solcoverjs/hardhat.config.js      |  14 ---
 .../ganache-solcoverjs/test/contracta.js      |  15 ---
 .../ganache-solcoverjs/test/contractb.js      |  15 ---
 .../ganache-solcoverjs/test/contractc.js      |  20 ----
 test/units/api.js                             |  32 -----
 test/units/validator.js                       |   2 -
 yarn.lock                                     | 113 +-----------------
 26 files changed, 80 insertions(+), 750 deletions(-)
 delete mode 100644 test/sources/projects/ganache-solcoverjs/.gitignore
 delete mode 100644 test/sources/projects/ganache-solcoverjs/.solcover.js
 delete mode 100644 test/sources/projects/ganache-solcoverjs/contracts/ContractA.sol
 delete mode 100644 test/sources/projects/ganache-solcoverjs/contracts/ContractB.sol
 delete mode 100644 test/sources/projects/ganache-solcoverjs/contracts/ContractC.sol
 delete mode 100644 test/sources/projects/ganache-solcoverjs/contracts/Migrations.sol
 delete mode 100644 test/sources/projects/ganache-solcoverjs/hardhat.config.js
 delete mode 100644 test/sources/projects/ganache-solcoverjs/test/contracta.js
 delete mode 100644 test/sources/projects/ganache-solcoverjs/test/contractb.js
 delete mode 100644 test/sources/projects/ganache-solcoverjs/test/contractc.js

diff --git a/README.md b/README.md
index 2de1fc3..4519b99 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,6 @@ npx hardhat coverage [command-options]
 | testfiles  | `--testfiles "test/registry/*.ts"` | Test file(s) to run. (Globs must be enclosed by quotes and use [globby matching patterns][38])|
 | sources | `--sources myFolder` or `--sources myFile.sol` | Path to *single* folder or file to target for coverage. Path is relative to Hardhat's `paths.sources` (usually `contracts/`) |
 | solcoverjs | `--solcoverjs ./../.solcover.js` | Relative path from working directory to config. Useful for monorepo packages that share settings. (Path must be "./" prefixed) |
-| network    | `--network development` | Use network settings defined in the Hardhat config |
 | temp[<sup>*</sup>][14]       | `--temp build`   | :warning: **Caution** :warning:  Path to a *disposable* folder to store compilation artifacts in. Useful when your test setup scripts include hard-coded paths to a build directory. [More...][14] |
 | matrix   | `--matrix` | Generate a JSON object that maps which mocha tests hit which lines of code. (Useful as an input for some fuzzing, mutation testing and fault-localization algorithms.) [More...][39]|
 
@@ -83,11 +82,9 @@ module.exports = {
 | onPreCompile[<sup>*</sup>][14] | *Function* |   | Hook run *after* filesystem and compiler configuration is applied, *before* the compiler is run. Can be used with the other hooks to be able to generate coverage reports on non-standard / customized directory structures, as well as contracts with absolute import paths. [More...][23] |
 | onCompileComplete[<sup>*</sup>][14] | *Function* |  | Hook run *after* compilation completes, *before* tests are run. Useful if you have secondary compilation steps or need to modify built artifacts. [More...][23]|
 | onTestsComplete[<sup>*</sup>][14] | *Function* |  | Hook run *after* the tests complete, *before* Istanbul reports are generated. [More...][23]|
-| onIstanbulComplete[<sup>*</sup>][14] | *Function* |  | Hook run *after* the Istanbul reports are generated, *before* the ganache server is shut down. Useful if you need to clean resources up. [More...][23]|
+| onIstanbulComplete[<sup>*</sup>][14] | *Function* |  | Hook run *after* the Istanbul reports are generated, *before* the coverage task completes. Useful if you need to clean resources up. [More...][23]|
 | configureYulOptimizer | *Boolean* | false | (Experimental) Setting to `true` should resolve "stack too deep" compiler errors in large projects using ABIEncoderV2 |
 | solcOptimizerDetails | *Object* | `undefined` |(Experimental) Must be used in combination with `configureYulOptimizer`. Allows you configure solc's [optimizer details][1001]. Useful if the default remedy for stack-too-deep errors doesn't work in your case (See FAQ below). |
-| client | *Object* | `require("ganache-core")` | Ganache only: useful if you need a specific ganache version |
-| providerOptions | *Object* | `{ }` | Ganache only: [ganache-core options][1]  |
 
 
 [<sup>*</sup> Advanced use][14]
@@ -143,7 +140,6 @@ $ git clone https://github.com/sc-forks/solidity-coverage.git
 $ yarn
 ```
 
-[1]: https://github.com/trufflesuite/ganache-core#options
 [2]: https://istanbul.js.org/docs/advanced/alternative-reporters/
 [3]: https://mochajs.org/api/mocha
 [4]: https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-gas
diff --git a/docs/advanced.md b/docs/advanced.md
index b42c7ca..891e843 100644
--- a/docs/advanced.md
+++ b/docs/advanced.md
@@ -27,7 +27,7 @@ module.exports = {
 
 The plugin exposes a set of workflow hooks that let you run arbitrary async logic between the main
 stages of the coverage generation process. These are useful for tasks like launching secondary
-services which need to connect to a running ganache instance (ex: the Oraclize/Provable bridge),
+services which need to connect to a running ethereum client instance (ex: the Oraclize/Provable bridge),
 or reading data from the compilation artifacts to run special preparatory steps for your tests.
 
 The stages/hooks are (in order of execution):
diff --git a/docs/api.md b/docs/api.md
index 309546c..24efc95 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -8,9 +8,9 @@ table below shows how its core methods relate to the stages of a test run:
 | Test Stage <img width=200/>   | API Method <img width=200/>  | Description <img width=800/>                                                                                                                                                                         |
 |---------------|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | compilation   | `instrument` | A **pre-compilation** step: Rewrites contracts and generates an instrumentation data map.                                                                                              |
-| client launch |   `ganache`  | A **substitute** step: Launches a ganache client with coverage collection enabled in its VM. As the client runs it will mark line/branch hits on the instrumentation data map.         |
+| client launch |   `attachToHardhatVM`  | A **pre-test** step: Enables coverage collection enabled in a HardhatEVM client. As the client runs it will mark line/branch hits on the instrumentation data map.         |
 | test          | `report`     | A **post-test** step: Generates a coverage report from the data collected by the VM after tests complete. |
-| exit          | `finish`     | A **substitute** step: Shuts client down                                                                                                                                               |
+
 
 [3]: https://github.com/gotwarlost/istanbul
 
@@ -20,8 +20,8 @@ table below shows how its core methods relate to the stages of a test run:
 disposable set of contracts/artifacts which coverage must use in lieu of the 'real' (uninstrumented)
 contracts.
 
-+ there are two complete [coverage tool/plugin implementations][5] (for Hardhat and Truffle)
-which can be used as sources if you're building something similar.
++ there is a complete [coverage tool/plugin implementation][5] for Hardhat
+which can be used as a source if you're building something similar.
 
 [5]: https://github.com/sc-forks/solidity-coverage/tree/master/plugins
 
@@ -31,9 +31,8 @@ which can be used as sources if you're building something similar.
 - [API Methods](#api)
   * [constructor](#constructor)
   * [instrument](#instrument)
-  * [ganache](#ganache)
+  * [attachToHardhatVM](#attachToHardhatVM)
   * [report](#report)
-  * [finish](#finish)
   * [getInstrumentationData](#getinstrumentationdata)
   * [setInstrumentationData](#setinstrumentationdata)
 - [Utils Methods](#utils)
@@ -64,13 +63,10 @@ Creates a coverage API instance. Configurable.
 | ------ | ---- | ------- | ----------- |
 | port | *Number* | 8555 | Port to launch client on |
 | silent | *Boolean* | false | Suppress logging output |
-| client | *Object* | `require("ganache-core")` | JS Ethereum client |
-| providerOptions | *Object* | `{ }` | [ganache-core options][1]  |
 | skipFiles | *Array* | `[]` | Array of contracts or folders (with paths expressed relative to the `contracts` directory) that should be skipped when doing instrumentation. |
 | istanbulFolder | *String* | `./coverage` |  Folder location for Istanbul coverage reports. |
 | istanbulReporter | *Array* | `['html', 'lcov', 'text', 'json']` | [Istanbul coverage reporters][2]  |
 
-[1]: https://github.com/trufflesuite/ganache-core#options
 [2]: https://istanbul.js.org/docs/advanced/alternative-reporters/
 
 --------------
@@ -100,33 +96,37 @@ const instrumented = api.instrument(contracts)
 
 --------------
 
-## ganache
+## attachToHardhatVM
 
-Enables coverage data collection on an in-process ganache server. By default, this method launches
-the server, begins listening on the port specified in the [config](#constructor) (or 8555 if unspecified), and
-returns a url string. When `autoLaunchServer` is false, method returns `ganache.server` so you can control
-the `server.listen` invocation yourself.
+Enables coverage data collection on a HardhatEVM provider. (You will need to create a hardhat provider with the correct VM settings as shown below before invoking this method.)
 
 **Parameters**
 
--   `client` **Object**: (*Optional*)   ganache module
--   `autoLaunchServer` **Boolean**: (*Optional*)
+-   `provider` **Object**: Hardhat provider
 
-Returns **Promise** Address of server to connect to, or initialized, unlaunched server
+Returns **Promise**
 
 **Example**
 ```javascript
-const client = require('ganache-cli');
+const { createProvider } = require("hardhat/internal/core/providers/construction");
+const { resolveConfig } = require("hardhat/internal/core/config/config-resolution");
+const { HARDHAT_NETWORK_NAME } = require("hardhat/plugins")
 
-const api = new CoverageAPI( { client: client } );
-const address = await api.ganache();
+const api = new CoverageAPI( { ... } );
+const config = resolveConfig("./", {});
 
-> http://127.0.0.1:8555
+config.networks[HARDHAT_NETWORK_NAME].allowUnlimitedContractSize = true;
+config.networks[HARDHAT_NETWORK_NAME].blockGasLimit = api.gasLimitNumber;
+config.networks[HARDHAT_NETWORK_NAME].gas =  api.gasLimit;
+config.networks[HARDHAT_NETWORK_NAME].gasPrice = api.gasPrice;
+config.networks[HARDHAT_NETWORK_NAME].initialBaseFeePerGas = 0;
 
-// Alternatively...
+const provider = await createProvider(
+  config,
+  HARDHAT_NETWORK_NAME
+)
 
-const server = await api.ganache(client, false);
-await pify(server.listen)(8545));
+await api.attachToHardhatVM(provider);
 ```
 
 --------------
@@ -148,22 +148,6 @@ await api.report('./coverage_4A3cd2b'); // Default folder name is 'coverage'
 
 -------------
 
-## finish
-
-Shuts down coverage-enabled ganache server instance
-
-Returns **Promise**
-
-**Example**
-```javascript
-const client = require('ganache-cli');
-
-await api.ganache(client); // Server listening...
-await api.finish();        // Server shut down.
-```
-
--------------
-
 ## getInstrumentationData
 
 Returns a copy of the hit map created during instrumentation. Useful if you'd like to delegate
@@ -193,7 +177,7 @@ const data = load(data); // Pseudo-code
 api.setIntrumentationData(data);
 
 // Client will collect data for the loaded map
-const address = await api.ganache(client);
+await api.attachToHardhatVM(provider);
 
 // Or to `report` instrumentation data which was collected in a different process.
 const data = load(data); // Pseudo-code
@@ -348,8 +332,7 @@ utils.save(instrumented, config.contractsDir, tempContractsDir);
 
 ## finish
 
-Deletes temporary folders and shuts the ganache server down. Is tolerant - if folders or ganache
-server don't exist it will return silently.
+Deletes temporary folders. Is tolerant - if folders don't exist it will return silently.
 
 **Parameters**
 
diff --git a/lib/api.js b/lib/api.js
index 30bd4f5..296fcb4 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -4,7 +4,6 @@ const fs = require('fs');
 const path = require('path');
 const istanbul = require('sc-istanbul');
 const assert = require('assert');
-const detect = require('detect-port');
 const _ = require('lodash/lang');
 
 const ConfigValidator = require('./validator');
@@ -45,20 +44,10 @@ class API {
     this.onIstanbulComplete = config.onIstanbulComplete || this.defaultHook;
     this.onPreCompile = config.onPreCompile             || this.defaultHook;
 
-    this.server = null;
-    this.defaultPort = 8555;
-    this.client = config.client;
-    this.defaultNetworkName = 'soliditycoverage';
-    this.port = config.port || this.defaultPort;
-    this.host = config.host || "127.0.0.1";
-    this.providerOptions = config.providerOptions || {};
-    this.autoLaunchServer = config.autoLaunchServer === false ? false : true;
-
     this.skipFiles = config.skipFiles || [];
 
     this.log = config.log || console.log;
     this.gasLimit = 0xffffffffff                // default "gas sent" with transactions
-    this.gasLimitString = "0x1fffffffffffff";   // block gas limit for ganache (higher than "gas sent")
     this.gasLimitNumber = 0x1fffffffffffff;     // block gas limit for Hardhat
     this.gasPrice = 0x01;
 
@@ -138,56 +127,6 @@ class API {
     this.instrumenter.instrumentationData = _.cloneDeep(data);
   }
 
-  /**
-   * Enables coverage collection on in-process ethereum client server, hooking the DataCollector
-   * to its VM. By default, method will return a url after server has begun listening on the port
-   * specified in the config. When `autoLaunchServer` is false, method returns`ganache.server` so
-   * the consumer can control the 'server.listen' invocation themselves.
-   * @param  {Object} client             ganache client
-   * @param  {Boolean} autoLaunchServer  boolean
-   * @return {<Promise> (String | Server) }  address of server to connect to, or initialized, unlaunched server.
-   */
-  async ganache(client, autoLaunchServer){
-    // Check for port-in-use
-    if (await detect(this.port) !== this.port){
-      throw new Error(this.ui.generate('server-fail', [this.port]))
-    }
-
-    this.collector = new DataCollector(this.instrumenter.instrumentationData);
-
-    this.providerOptions.gasLimit =
-      'gasLimit' in this.providerOptions
-        ? this.providerOptions.gasLimit
-        : this.gasLimitString;
-
-    this.providerOptions.allowUnlimitedContractSize =
-      'allowUnlimitedContractSize' in this.providerOptions
-        ? this.providerOptions.allowUnlimitedContractSize
-        : true;
-
-    // Attach to vm step of supplied client
-    try {
-      if (this.config.forceBackupServer) throw new Error()
-      await this.attachToGanacheVM(client)
-    }
-
-    // Fallback to ganache-cli)
-    catch(err) {
-      const _ganache = require('ganache-cli');
-      this.ui.report('vm-fail', [_ganache.version]);
-      await this.attachToGanacheVM(_ganache);
-    }
-
-    if (autoLaunchServer === false || this.autoLaunchServer === false){
-      return this.server;
-    }
-
-    await pify(this.server.listen)(this.port);
-    const address = `http://${this.host}:${this.port}`;
-    this.ui.report('server', [address]);
-    return address;
-  }
-
   /**
    * Generate coverage / write coverage report / run istanbul
    */
@@ -223,60 +162,16 @@ class API {
     })
   }
 
-
   /**
    * Removes coverage build artifacts, kills testrpc.
    */
-  async finish() {
-    if (this.server && this.server.close){
-      this.ui.report('finish');
-      await pify(this.server.close)();
-    }
-  }
+  async finish() { /* Just a stub now - used to shutdown ganache */}
+
   // ------------------------------------------ Utils ----------------------------------------------
 
   // ========
   // Provider
   // ========
-  async attachToGanacheVM(client){
-    const self = this;
-
-    // Fallback to client from options
-    if(!client) client = this.client;
-    this.server = client.server(this.providerOptions);
-
-    this.assertHasBlockchain(this.server.provider);
-    await this.vmIsResolved(this.server.provider);
-
-    const blockchain = this.server.provider.engine.manager.state.blockchain;
-    const createVM = blockchain.createVMFromStateTrie;
-
-    // Attach to VM which ganache has already created for transactions
-    blockchain.vm.on('step', self.collector.step.bind(self.collector));
-
-    // Hijack createVM method which ganache runs for each `eth_call`
-    blockchain.createVMFromStateTrie = function(state, activatePrecompiles) {
-      const vm = createVM.apply(blockchain, arguments);
-      vm.on('step', self.collector.step.bind(self.collector));
-      return vm;
-    }
-  }
-
-  assertHasBlockchain(provider){
-    assert(provider.engine.manager.state.blockchain !== undefined);
-    assert(provider.engine.manager.state.blockchain.createVMFromStateTrie !== undefined);
-  }
-
-  async vmIsResolved(provider){
-    return new Promise(resolve => {
-      const interval = setInterval(() => {
-        if (provider.engine.manager.state.blockchain.vm !== undefined){
-          clearInterval(interval);
-          resolve();
-        }
-      });
-    })
-  }
 
   // Hardhat
   async attachToHardhatVM(provider){
diff --git a/lib/ui.js b/lib/ui.js
index 335eed4..b3ebe51 100644
--- a/lib/ui.js
+++ b/lib/ui.js
@@ -56,10 +56,6 @@ class AppUI extends UI {
     const w = ":warning:";
 
     const kinds = {
-      'vm-fail': `${w}  ${c.red('There was a problem attaching to the ganache VM.')}\n` +
-                 `${w}  ${c.red('For help, see the "client" & "providerOptions" syntax in solidity-coverage docs.')}\n`+
-                 `${w}  ${c.red(`Using ganache-cli (v${args[0]}) instead.`)}\n`,
-
 
       'instr-start': `\n${c.bold('Instrumenting for coverage...')}` +
                      `\n${c.bold('=============================')}\n`,
@@ -69,10 +65,6 @@ class AppUI extends UI {
       'istanbul': `${ct} ${c.grey('Istanbul reports written to')} ./coverage/ ` +
                         `${c.grey('and')} ./coverage.json`,
 
-      'finish':  `${ct} ${c.grey('solidity-coverage cleaning up, shutting down ganache server')}`,
-
-      'server':  `${ct} ${c.bold('server: ')}           ${c.grey(args[0])}`,
-
       'command': `\n${w}  ${c.red.bold('solidity-coverage >= 0.7.0 is no longer a shell command.')} ${w}\n` +
                  `${c.bold('=============================================================')}\n\n` +
                  `Instead, you should use the plugin produced for your development stack\n` +
@@ -103,10 +95,6 @@ class AppUI extends UI {
       'istanbul-fail': `${c.red('Istanbul coverage reports could not be generated. ')}`,
 
       'sources-fail': `${c.red('Cannot locate expected contract sources folder: ')} ${args[0]}`,
-
-      'server-fail': `${c.red('Port')} ${args[0]} ${c.red('is already in use.\n')}` +
-                     `${c.red('\tRun: "lsof -i" to find the pid of the process using it.\n')}` +
-                     `${c.red('\tRun: "kill -9 <pid>" to kill it.\n')}`
     }
 
     return this._format(kinds[kind])
diff --git a/package.json b/package.json
index 45e16f7..299e164 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,6 @@
     "@solidity-parser/parser": "^0.18.0",
     "chalk": "^2.4.2",
     "death": "^1.1.0",
-    "detect-port": "^1.3.0",
     "difflib": "^0.2.4",
     "fs-extra": "^8.1.0",
     "ghost-testrpc": "^0.0.2",
@@ -52,7 +51,6 @@
     "decache": "^4.5.1",
     "ethereum-waffle": "^3.4.0",
     "ethers": "^5.5.3",
-    "ganache-cli": "6.12.2",
     "hardhat": "^2.19.5",
     "hardhat-gas-reporter": "^1.0.1",
     "nyc": "^14.1.1",
diff --git a/plugins/hardhat.plugin.js b/plugins/hardhat.plugin.js
index 8fbda59..0185321 100644
--- a/plugins/hardhat.plugin.js
+++ b/plugins/hardhat.plugin.js
@@ -111,7 +111,6 @@ task("coverage", "Generates a code coverage report for tests")
   let ui;
   let api;
   let config;
-  let client;
   let address;
   let failedTests = 0;
 
@@ -143,6 +142,11 @@ task("coverage", "Generates a code coverage report for tests")
     }
     env.hardhatArguments = Object.assign(env.hardhatArguments, flags)
 
+    // Error if --network flag is set
+    if (env.hardhatArguments.network){
+      throw new Error(ui.generate('network-fail'));
+    }
+
     // ===========================
     // Generate abi diff component
     // (This flag only useful within codecheck context)
@@ -201,36 +205,21 @@ task("coverage", "Generates a code coverage report for tests")
     // ==============
     let network = await nomiclabsUtils.setupHardhatNetwork(env, api, ui);
 
-    if (network.isHardhatEVM){
-      accounts = await utils.getAccountsHardhat(network.provider);
-      nodeInfo = await utils.getNodeInfoHardhat(network.provider);
-
-      // Note: this only works if the reset block number is before any transactions have fired on the fork.
-      // e.g you cannot fork at block 1, send some txs (blocks 2,3,4) and reset to block 2
-      env.network.provider.on(HARDHAT_NETWORK_RESET_EVENT, async () => {
-        await api.attachToHardhatVM(env.network.provider);
-      });
-
-      await api.attachToHardhatVM(network.provider);
-
-      ui.report('hardhat-network', [
-        nodeInfo.split('/')[1],
-        env.network.name,
-      ]);
-    } else {
-      client = api.client || require('ganache-cli');
-      address = await api.ganache(client);
-      const accountsRequest = await utils.getAccountsGanache(api.server.provider);
-      const nodeInfoRequest = await utils.getNodeInfoGanache(api.server.provider);
-
-      ui.report('ganache-network', [
-        nodeInfoRequest.result.split('/')[1],
-        env.network.name,
-        api.port
-      ]);
-
-      accounts = accountsRequest.result;
-    }
+    accounts = await utils.getAccountsHardhat(network.provider);
+    nodeInfo = await utils.getNodeInfoHardhat(network.provider);
+
+    // Note: this only works if the reset block number is before any transactions have fired on the fork.
+    // e.g you cannot fork at block 1, send some txs (blocks 2,3,4) and reset to block 2
+    env.network.provider.on(HARDHAT_NETWORK_RESET_EVENT, async () => {
+      await api.attachToHardhatVM(env.network.provider);
+    });
+
+    await api.attachToHardhatVM(network.provider);
+
+    ui.report('hardhat-network', [
+      nodeInfo.split('/')[1],
+      env.network.name,
+    ]);
 
     // Set default account (if not already configured)
     nomiclabsUtils.setNetworkFrom(network.config, accounts);
diff --git a/plugins/resources/nomiclabs.ui.js b/plugins/resources/nomiclabs.ui.js
index bf97a4c..8ec5d78 100644
--- a/plugins/resources/nomiclabs.ui.js
+++ b/plugins/resources/nomiclabs.ui.js
@@ -45,9 +45,6 @@ class PluginUI extends UI {
 
       'instr-skipped': `${ds} ${c.grey(args[0])}`,
 
-      'versions':  `${ct} ${c.bold('ganache-core')}:      ${args[0]}\n` +
-                   `${ct} ${c.bold('solidity-coverage')}: v${args[1]}`,
-
       'hardhat-versions': `\n${c.bold('Version')}` +
                           `\n${c.bold('=======')}\n` +
                           `${ct} ${c.bold('solidity-coverage')}: v${args[0]}`,
@@ -57,17 +54,6 @@ class PluginUI extends UI {
                          `${ct} ${c.bold('HardhatEVM')}: v${args[0]}\n` +
                          `${ct} ${c.bold('network')}:    ${args[1]}\n`,
 
-      'ganache-network': `\n${c.bold('Network Info')}` +
-                         `\n${c.bold('============')}\n` +
-                         `${ct} ${c.bold('port')}:         ${args[1]}\n` +
-                         `${ct} ${c.bold('network')}:      ${args[0]}\n`,
-
-      'port-clash': `${w}  ${c.red("The 'port' values in your config's network url ")}` +
-                          `${c.red("and .solcover.js are different. Using network's: ")} ${c.bold(args[0])}.\n`,
-
-      'port-clash-hardhat': `${w}  ${c.red("The 'port' values in your Hardhat network's url ")}` +
-                            `${c.red("and .solcover.js are different. Using Hardhat's: ")} ${c.bold(args[0])}.\n`,
-
     }
 
     this._write(kinds[kind]);
@@ -84,8 +70,8 @@ class PluginUI extends UI {
     const x = ":x:";
 
     const kinds = {
-      'network-fail': `${c.red('--network argument: ')}${args[0]}` +
-                      `${c.red(' is not a defined network in hardhat.config.js.')}`,
+      'network-fail': `${c.red('--network cli flag is not supported for the coverage task. ')}` +
+                      `${c.red('Beginning with v0.8.7, coverage must use the default "hardhat" network.')}`,
 
       'sources-fail': `${c.red('Cannot locate expected contract sources folder: ')} ${args[0]}`,
 
diff --git a/plugins/resources/nomiclabs.utils.js b/plugins/resources/nomiclabs.utils.js
index 0c9dd87..2966d08 100644
--- a/plugins/resources/nomiclabs.utils.js
+++ b/plugins/resources/nomiclabs.utils.js
@@ -64,62 +64,34 @@ async function setupHardhatNetwork(env, api, ui){
   const newCreateProviderSignature = semver.satisfies(hardhatPackage.version, "^2.15.0");
 
   let provider, networkName, networkConfig;
-  let isHardhatEVM = false;
-
-  networkName = env.hardhatArguments.network || HARDHAT_NETWORK_NAME;
 
   // HardhatEVM
-  if (networkName === HARDHAT_NETWORK_NAME){
-    isHardhatEVM = true;
-
-    networkConfig = env.network.config;
-    configureHardhatEVMGas(networkConfig, api);
-
-    if (newCreateProviderSignature) {
-      provider = await createProvider(
-        env.config,
-        networkName,
-        env.artifacts,
-      )
-    } else {
-      provider = createProvider(
-        networkName,
-        networkConfig,
-        env.config.paths,
-        env.artifacts,
-      )
-    }
-
-  // HttpProvider
+  networkConfig = env.network.config;
+  configureHardhatEVMGas(networkConfig, api);
+
+  if (newCreateProviderSignature) {
+    provider = await createProvider(
+      env.config,
+      HARDHAT_NETWORK_NAME,
+      env.artifacts,
+    )
   } else {
-    if (!(env.config.networks && env.config.networks[networkName])){
-      throw new Error(ui.generate('network-fail', [networkName]))
-    }
-    networkConfig = env.config.networks[networkName]
-    configureNetworkGas(networkConfig, api);
-    configureHttpProvider(networkConfig, api, ui)
-
-    if (newCreateProviderSignature) {
-      provider = await createProvider(env.config, networkName);
-    } else {
-      provider = createProvider(networkName, networkConfig);
-    }
+    provider = createProvider(
+      HARDHAT_NETWORK_NAME,
+      networkConfig,
+      env.config.paths,
+      env.artifacts,
+    )
   }
 
   return configureNetworkEnv(
     env,
-    networkName,
+    HARDHAT_NETWORK_NAME,
     networkConfig,
-    provider,
-    isHardhatEVM
+    provider
   )
 }
 
-function configureNetworkGas(networkConfig, api){
-  networkConfig.gas =  api.gasLimit;
-  networkConfig.gasPrice = api.gasPrice;
-}
-
 function configureHardhatEVMGas(networkConfig, api){
   networkConfig.allowUnlimitedContractSize = true;
   networkConfig.blockGasLimit = api.gasLimitNumber;
@@ -128,7 +100,7 @@ function configureHardhatEVMGas(networkConfig, api){
   networkConfig.initialBaseFeePerGas = 0;
 }
 
-function configureNetworkEnv(env, networkName, networkConfig, provider, isHardhatEVM){
+function configureNetworkEnv(env, networkName, networkConfig, provider){
   env.config.networks[networkName] = networkConfig;
   env.config.defaultNetwork = networkName;
 
@@ -136,7 +108,7 @@ function configureNetworkEnv(env, networkName, networkConfig, provider, isHardha
     name: networkName,
     config: networkConfig,
     provider: provider,
-    isHardhatEVM: isHardhatEVM
+    isHardhatEVM: true
   });
 
   env.ethereum = provider;
@@ -145,24 +117,6 @@ function configureNetworkEnv(env, networkName, networkConfig, provider, isHardha
   return env.network;
 }
 
-/**
- * Extracts port from url / sets network.url
- * @param  {Object} networkConfig
- * @param  {SolidityCoverage} api
- */
-function configureHttpProvider(networkConfig, api, ui){
-  const configPort = networkConfig.url.split(':')[2];
-
-  // Warn: port conflicts
-  if (api.port !== api.defaultPort && api.port !== configPort){
-    ui.report('port-clash', [ configPort ])
-  }
-
-  // Prefer network port
-  api.port = parseInt(configPort);
-  networkConfig.url = `http://${api.host}:${api.port}`;
-}
-
 /**
  * Configures mocha to generate a json object which maps which tests
  * hit which lines of code.
diff --git a/plugins/resources/plugin.utils.js b/plugins/resources/plugin.utils.js
index a296da0..c722a08 100644
--- a/plugins/resources/plugin.utils.js
+++ b/plugins/resources/plugin.utils.js
@@ -262,35 +262,6 @@ async function getNodeInfoHardhat(provider){
   return provider.send("web3_clientVersion", [])
 }
 
-async function getAccountsGanache(provider){
-  const payload = {
-    jsonrpc: "2.0",
-    method: "eth_accounts",
-    params: [],
-    id: 1
-  };
-  return ganacheRequest(provider, payload)
-}
-
-async function getNodeInfoGanache(provider){
-  const payload = {
-    jsonrpc: "2.0",
-    method: "web3_clientVersion",
-    params: [],
-    id: 1
-  };
-  return ganacheRequest(provider, payload)
-}
-
-async function ganacheRequest(provider, payload){
-  return new Promise((resolve, reject) => {
-    provider.sendAsync(payload, function(err, res){
-      if (err) return reject(err)
-      resolve(res);
-    })
-  });
-}
-
 // ==========================
 // Finishing / Cleanup
 // ==========================
@@ -330,6 +301,4 @@ module.exports = {
   setupTempFolders,
   getAccountsHardhat,
   getNodeInfoHardhat,
-  getAccountsGanache,
-  getNodeInfoGanache
 }
diff --git a/test/integration/errors.js b/test/integration/errors.js
index f1f4ca7..2451b58 100644
--- a/test/integration/errors.js
+++ b/test/integration/errors.js
@@ -3,7 +3,6 @@ const fs = require('fs');
 const path = require('path')
 const pify = require('pify')
 const shell = require('shelljs');
-const ganache = require('ganache-cli')
 
 const verify = require('./../util/verifiers')
 const mock = require('./../util/integration');
@@ -64,37 +63,11 @@ describe('Hardhat Plugin: error cases', function() {
     }
   });
 
-  it('tries to launch with a port already in use', async function(){
+  it('tries to launch with the network flag', async function(){
     const taskArgs = {
       network: "development"
     }
 
-    const server = ganache.server();
-
-    mock.install('Simple', 'simple.js', solcoverConfig);
-    mock.hardhatSetupEnv(this);
-
-    await pify(server.listen)(8545);
-
-    try {
-      await this.env.run("coverage", taskArgs);
-      assert.fail();
-    } catch(err){
-      assert(
-        err.message.includes('already in use') &&
-        err.message.includes('lsof'),
-        `Should error on port-in-use with advice: ${err.message}`
-      )
-    }
-
-    await pify(server.close)();
-  });
-
-  it('tries to launch with a non-existent network', async function(){
-    const taskArgs = {
-      network: "does-not-exist"
-    }
-
     mock.install('Simple', 'simple.js', solcoverConfig);
     mock.hardhatSetupEnv(this);
 
@@ -103,9 +76,8 @@ describe('Hardhat Plugin: error cases', function() {
       assert.fail();
     } catch(err){
       assert(
-        err.message.includes('is not a defined network in hardhat.config.js') &&
-        err.message.includes('does-not-exist'),
-        `Should error missing network error: ${err.message}`
+        err.message.includes('--network cli flag is not supported') &&
+        `Should error network flag disallowed: ${err.message}`
       )
     }
   });
diff --git a/test/integration/flags.js b/test/integration/flags.js
index 95f2bed..130bb58 100644
--- a/test/integration/flags.js
+++ b/test/integration/flags.js
@@ -51,39 +51,6 @@ describe('Hardhat Plugin: command line options', function() {
     verify.lineCoverage(expected);
   });
 
-  it('--network (declared port mismatches)', async function(){
-    solcoverConfig.port = 8222;
-
-    mock.install('Simple', 'simple.js', solcoverConfig);
-    mock.hardhatSetupEnv(this);
-
-    this.env.hardhatArguments.network = "development";
-
-    await this.env.run("coverage");
-
-    assert(
-      mock.loggerOutput.val.includes("The 'port' values"),
-      `Should notify about mismatched port values: ${mock.loggerOutput.val}`
-    );
-
-    assert(
-      mock.loggerOutput.val.includes("8545"),
-      `Should have used default coverage port 8545: ${mock.loggerOutput.val}`
-    );
-
-    assert(
-      mock.loggerOutput.val.includes("development"),
-      `Should have used specified network name: ${mock.loggerOutput.val}`
-    );
-
-    const expected = [{
-      file: mock.pathToContract(hardhatConfig, 'Simple.sol'),
-      pct: 100
-    }];
-
-    verify.lineCoverage(expected);
-  });
-
   it('--testfiles test/<fileName>', async function() {
     const taskArgs = {
       testfiles: path.join(
diff --git a/test/integration/standard.js b/test/integration/standard.js
index 3f9d568..60676e7 100644
--- a/test/integration/standard.js
+++ b/test/integration/standard.js
@@ -53,25 +53,6 @@ describe('Hardhat Plugin: standard use cases', function() {
     );
   });
 
-  it('default network ("hardhat")', async function(){
-    mock.install('Simple', 'simple.js', solcoverConfig);
-    mock.hardhatSetupEnv(this);
-
-    this.env.hardhatArguments.network = "hardhat"
-
-    await this.env.run("coverage");
-
-    assert(
-      mock.loggerOutput.val.includes("HardhatEVM"),
-      `Should have displayed HardhatEVM version: ${mock.loggerOutput.val}`
-    );
-
-    assert(
-      mock.loggerOutput.val.includes("hardhat"),
-      `Should have used 'hardhat' network name: ${mock.loggerOutput.val}`
-    );
-  });
-
   it('uses inheritance', async function() {
     mock.installDouble(
       ['Proxy', 'Owned'],
@@ -193,20 +174,6 @@ describe('Hardhat Plugin: standard use cases', function() {
     verify.lineCoverage(expected);
   });
 
-  // hardhat-truffle5 test asserts balance is 777 ether
-  it('config: providerOptions', async function() {
-    const taskArgs = {
-      network: 'development'
-    };
-
-    solcoverConfig.providerOptions = { default_balance_ether: 777 }
-
-    mock.install('Simple', 'testrpc-options.js', solcoverConfig);
-    mock.hardhatSetupEnv(this);
-
-    await this.env.run("coverage", taskArgs);
-  });
-
   it('config: skipped file', async function() {
     solcoverConfig.skipFiles = ['Migrations.sol', 'Owned.sol'];
 
@@ -328,61 +295,6 @@ describe('Hardhat Plugin: standard use cases', function() {
     await this.env.run("coverage");
   });
 
-  it('uses account[0] as default "from" (ganache)', async function(){
-    const mnemonic = "purity blame spice arm main narrow olive roof science verb parrot flash";
-    const account0 = "0x42ecc9ab31d7c0240532992682ee3533421dd7f5"
-    const taskArgs = {
-      network: "development"
-    }
-
-    solcoverConfig.providerOptions = {
-      mnemonic: mnemonic
-    };
-
-    mock.install('Simple', 'account-zero.js', solcoverConfig);
-    mock.hardhatSetupEnv(this);
-
-    await this.env.run("coverage", taskArgs);
-
-    const expected = [
-      {
-        file: mock.pathToContract(hardhatConfig, 'Simple.sol'),
-        pct: 50
-      }
-    ];
-
-    verify.lineCoverage(expected);
-  })
-
-  it('inherits network defined "from" (ganache)', async function(){
-    const mnemonic = "purity blame spice arm main narrow olive roof science verb parrot flash";
-    const account1 = "0xe7a46b209a65baadc11bf973c0f4d5f19465ae83"
-    const taskArgs = {
-      network: "development"
-    }
-
-    solcoverConfig.providerOptions = {
-      mnemonic: mnemonic
-    };
-
-    const hardhatConfig = mock.getDefaultHardhatConfig()
-    hardhatConfig.networks.development.from = account1;
-
-    mock.install('Simple', 'account-one.js', solcoverConfig, hardhatConfig);
-    mock.hardhatSetupEnv(this);
-
-    await this.env.run("coverage", taskArgs);
-
-    const expected = [
-      {
-        file: mock.pathToContract(hardhatConfig, 'Simple.sol'),
-        pct: 50
-      }
-    ];
-
-    verify.lineCoverage(expected);
-  })
-
   it('inherits network defined "from" (hardhat)', async function(){
     const mnemonic = "purity blame spice arm main narrow olive roof science verb parrot flash";
     const account1 = "0xe7a46b209a65baadc11bf973c0f4d5f19465ae83"
diff --git a/test/sources/projects/ganache-solcoverjs/.gitignore b/test/sources/projects/ganache-solcoverjs/.gitignore
deleted file mode 100644
index 736e8ae..0000000
--- a/test/sources/projects/ganache-solcoverjs/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-!node_modules
\ No newline at end of file
diff --git a/test/sources/projects/ganache-solcoverjs/.solcover.js b/test/sources/projects/ganache-solcoverjs/.solcover.js
deleted file mode 100644
index 6e2f532..0000000
--- a/test/sources/projects/ganache-solcoverjs/.solcover.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module.exports = {
-  client: require('ganache-cli'),
-  silent: process.env.SILENT ? true : false,
-  istanbulReporter: ['json-summary', 'text'],
-}
diff --git a/test/sources/projects/ganache-solcoverjs/contracts/ContractA.sol b/test/sources/projects/ganache-solcoverjs/contracts/ContractA.sol
deleted file mode 100644
index ad19d2c..0000000
--- a/test/sources/projects/ganache-solcoverjs/contracts/ContractA.sol
+++ /dev/null
@@ -1,17 +0,0 @@
-pragma solidity >=0.8.0 <0.9.0;
-
-
-contract ContractA {
-  uint x;
-  constructor() public {
-  }
-
-  function sendFn() public {
-    x = 5;
-  }
-
-  function callFn() public pure returns (uint){
-    uint y = 5;
-    return y;
-  }
-}
diff --git a/test/sources/projects/ganache-solcoverjs/contracts/ContractB.sol b/test/sources/projects/ganache-solcoverjs/contracts/ContractB.sol
deleted file mode 100644
index 6d5f53d..0000000
--- a/test/sources/projects/ganache-solcoverjs/contracts/ContractB.sol
+++ /dev/null
@@ -1,17 +0,0 @@
-pragma solidity >=0.8.0 <0.9.0;
-
-
-contract ContractB {
-  uint x;
-  constructor() public {
-  }
-
-  function sendFn() public {
-    x = 5;
-  }
-
-  function callFn() public pure returns (uint){
-    uint y = 5;
-    return y;
-  }
-}
diff --git a/test/sources/projects/ganache-solcoverjs/contracts/ContractC.sol b/test/sources/projects/ganache-solcoverjs/contracts/ContractC.sol
deleted file mode 100644
index 8c24195..0000000
--- a/test/sources/projects/ganache-solcoverjs/contracts/ContractC.sol
+++ /dev/null
@@ -1,17 +0,0 @@
-pragma solidity >=0.8.0 <0.9.0;
-
-
-contract ContractC {
-  uint x;
-  constructor() public {
-  }
-
-  function sendFn() public {
-    x = 5;
-  }
-
-  function callFn() public pure returns (uint){
-    uint y = 5;
-    return y;
-  }
-}
diff --git a/test/sources/projects/ganache-solcoverjs/contracts/Migrations.sol b/test/sources/projects/ganache-solcoverjs/contracts/Migrations.sol
deleted file mode 100644
index c378ffb..0000000
--- a/test/sources/projects/ganache-solcoverjs/contracts/Migrations.sol
+++ /dev/null
@@ -1,23 +0,0 @@
-pragma solidity >=0.4.21 <0.6.0;
-
-contract Migrations {
-  address public owner;
-  uint public last_completed_migration;
-
-  constructor() public {
-    owner = msg.sender;
-  }
-
-  modifier restricted() {
-    if (msg.sender == owner) _;
-  }
-
-  function setCompleted(uint completed) public restricted {
-    last_completed_migration = completed;
-  }
-
-  function upgrade(address new_address) public restricted {
-    Migrations upgraded = Migrations(new_address);
-    upgraded.setCompleted(last_completed_migration);
-  }
-}
diff --git a/test/sources/projects/ganache-solcoverjs/hardhat.config.js b/test/sources/projects/ganache-solcoverjs/hardhat.config.js
deleted file mode 100644
index 59fb8e0..0000000
--- a/test/sources/projects/ganache-solcoverjs/hardhat.config.js
+++ /dev/null
@@ -1,14 +0,0 @@
-require("@nomiclabs/hardhat-truffle5");
-require(__dirname + "/../plugins/nomiclabs.plugin");
-
-module.exports = {
-  solidity: {
-    version: "0.8.17"
-  },
-  networks: {
-    coverage: {
-      url: "http://127.0.0.1:8555"
-    }
-  }.
-  logger: process.env.SILENT ? { log: () => {} } : console,
-};
diff --git a/test/sources/projects/ganache-solcoverjs/test/contracta.js b/test/sources/projects/ganache-solcoverjs/test/contracta.js
deleted file mode 100644
index cc77802..0000000
--- a/test/sources/projects/ganache-solcoverjs/test/contracta.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const ContractA = artifacts.require("ContractA");
-
-contract("contracta", function(accounts) {
-  let instance;
-
-  before(async () => instance = await ContractA.new())
-
-  it('sends [ @skipForCoverage ]', async function(){
-    await instance.sendFn();
-  });
-
-  it('calls [ @skipForCoverage ]', async function(){
-    await instance.callFn();
-  })
-});
diff --git a/test/sources/projects/ganache-solcoverjs/test/contractb.js b/test/sources/projects/ganache-solcoverjs/test/contractb.js
deleted file mode 100644
index 71ebfb7..0000000
--- a/test/sources/projects/ganache-solcoverjs/test/contractb.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const ContractB = artifacts.require("ContractB");
-
-contract("contractB [ @skipForCoverage ]", function(accounts) {
-  let instance;
-
-  before(async () => instance = await ContractB.new())
-
-  it('sends', async function(){
-    await instance.sendFn();
-  });
-
-  it('calls', async function(){
-    await instance.callFn();
-  })
-});
diff --git a/test/sources/projects/ganache-solcoverjs/test/contractc.js b/test/sources/projects/ganache-solcoverjs/test/contractc.js
deleted file mode 100644
index 9b3d950..0000000
--- a/test/sources/projects/ganache-solcoverjs/test/contractc.js
+++ /dev/null
@@ -1,20 +0,0 @@
-const ContractC = artifacts.require("ContractC");
-
-contract("contractc", function(accounts) {
-  let instance;
-
-  before(async () => instance = await ContractC.new())
-
-  it('sends', async function(){
-    await instance.sendFn();
-  });
-
-  it('calls', async function(){
-    await instance.callFn();
-  })
-
-  it('sends', async function(){
-    await instance.sendFn();
-  });
-
-});
diff --git a/test/units/api.js b/test/units/api.js
index 4290e7a..5e56f9e 100644
--- a/test/units/api.js
+++ b/test/units/api.js
@@ -1,6 +1,4 @@
 const assert = require('assert');
-const detect = require('detect-port');
-const Ganache = require('ganache-cli');
 
 const util = require('./../util/util.js');
 const API = require('./../../api.js');
@@ -58,36 +56,6 @@ describe('api', () => {
     assert(cloneC[hash].hits === 5);
   });
 
-  it('ganache: autoLaunchServer === false', async function(){
-    const api = new API(opts);
-    const port = api.port;
-    const server = await api.ganache(Ganache, false);
-
-    assert(typeof port === 'number')
-    assert(typeof server === 'object');
-    assert(typeof server.listen === 'function');
-
-    const freePort = await detect(port);
-
-    assert(freePort === port);
-  });
-
-  it('config: autoLaunchServer: false', async function(){
-    opts.autoLaunchServer = false;
-
-    const api = new API(opts);
-    const port = api.port;
-    const server = await api.ganache(Ganache);
-
-    assert(typeof port === 'number')
-    assert(typeof server === 'object');
-    assert(typeof server.listen === 'function');
-
-    const freePort = await detect(port);
-
-    assert(freePort === port);
-  })
-
   it('utils', async function(){
     assert(utils.assembleFiles !== undefined)
     assert(utils.checkContext !== undefined)
diff --git a/test/units/validator.js b/test/units/validator.js
index 2479aed..842c9e5 100644
--- a/test/units/validator.js
+++ b/test/units/validator.js
@@ -21,7 +21,6 @@ describe('config validation', () => {
   it('validates the "string" options', function(){
     const options =  [
       "cwd",
-      "host",
       "istanbulFolder",
       "abiOutputPath",
       "matrixOutputPath",
@@ -47,7 +46,6 @@ describe('config validation', () => {
   it('validates the "boolean" options', function(){
     const options =  [
       "silent",
-      "autoLaunchServer",
       "measureStatementCoverage",
       "measureFunctionCoverage",
       "measureModifierCoverage",
diff --git a/yarn.lock b/yarn.lock
index d535fc4..ef08c02 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1508,10 +1508,6 @@ accepts@~1.3.8:
     mime-types "~2.1.34"
     negotiator "0.6.3"
 
-address@^1.0.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/address/-/address-1.1.2.tgz#bf1116c9c758c51b7a933d296b72c221ed9428b6"
-
 adm-zip@^0.4.16:
   version "0.4.16"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.16.tgz#cf4c508fdffab02c269cbc7f471a875f05570365"
@@ -3053,7 +3049,7 @@ cross-spawn@^4:
     lru-cache "^4.0.1"
     which "^1.2.9"
 
-cross-spawn@^6.0.0, cross-spawn@^6.0.5:
+cross-spawn@^6.0.5:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
   dependencies:
@@ -3114,7 +3110,7 @@ death@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/death/-/death-1.1.0.tgz#01aa9c401edd92750514470b8266390c66c67318"
 
-debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.0, debug@^2.6.8, debug@^2.6.9:
+debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -3269,13 +3265,6 @@ detect-indent@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-5.0.0.tgz#3871cc0a6a002e8c3e5b3cf7f336264675f06b9d"
 
-detect-port@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/detect-port/-/detect-port-1.3.0.tgz#d9c40e9accadd4df5cac6a782aefd014d573d1f1"
-  dependencies:
-    address "^1.0.1"
-    debug "^2.6.0"
-
 diff@3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
@@ -4045,18 +4034,6 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
-execa@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
-  dependencies:
-    cross-spawn "^6.0.0"
-    get-stream "^4.0.0"
-    is-stream "^1.1.0"
-    npm-run-path "^2.0.0"
-    p-finally "^1.0.0"
-    signal-exit "^3.0.0"
-    strip-eof "^1.0.0"
-
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
@@ -4427,14 +4404,6 @@ functions-have-names@^1.2.2:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/functions-have-names/-/functions-have-names-1.2.3.tgz#0404fe4ee2ba2f607f0e0ec3c80bae994133b834"
 
-ganache-cli@6.12.2:
-  version "6.12.2"
-  resolved "https://registry.yarnpkg.com/ganache-cli/-/ganache-cli-6.12.2.tgz#c0920f7db0d4ac062ffe2375cb004089806f627a"
-  dependencies:
-    ethereumjs-util "6.2.1"
-    source-map-support "0.5.12"
-    yargs "13.2.4"
-
 ganache-core@^2.13.2:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/ganache-core/-/ganache-core-2.13.2.tgz#27e6fc5417c10e6e76e2e646671869d7665814a3"
@@ -4499,7 +4468,7 @@ get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
 
-get-stream@^4.0.0, get-stream@^4.1.0:
+get-stream@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
   dependencies:
@@ -5038,10 +5007,6 @@ invert-kv@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
 
-invert-kv@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
-
 io-ts@1.10.4:
   version "1.10.4"
   resolved "https://registry.yarnpkg.com/io-ts/-/io-ts-1.10.4.tgz#cd5401b138de88e4f920adbcb7026e2d1967e6e2"
@@ -5267,7 +5232,7 @@ is-shared-array-buffer@^1.0.2:
   dependencies:
     call-bind "^1.0.2"
 
-is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
@@ -5609,12 +5574,6 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
-lcid@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
-  dependencies:
-    invert-kv "^2.0.0"
-
 level-codec@^9.0.0:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-9.0.2.tgz#fd60df8c64786a80d44e63423096ffead63d8cbc"
@@ -5924,12 +5883,6 @@ make-dir@^2.0.0, make-dir@^2.1.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
-map-age-cleaner@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz#7d583a7306434c055fe474b0f45078e6e1b4b92a"
-  dependencies:
-    p-defer "^1.0.0"
-
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -5960,14 +5913,6 @@ media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
-mem@^4.0.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
-  dependencies:
-    map-age-cleaner "^0.1.1"
-    mimic-fn "^2.0.0"
-    p-is-promise "^2.0.0"
-
 memdown@^1.0.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.4.1.tgz#b4e4e192174664ffbae41361aa500f3119efe215"
@@ -6091,10 +6036,6 @@ mime@1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
-mimic-fn@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
-
 mimic-response@^1.0.0, mimic-response@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
@@ -6433,12 +6374,6 @@ normalize-url@^4.1.0:
   version "4.5.1"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.1.tgz#0dd90cf1288ee1d1313b87081c9a5932ee48518a"
 
-npm-run-path@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
-  dependencies:
-    path-key "^2.0.0"
-
 nth-check@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.0.1.tgz#2efe162f5c3da06a28959fbd3db75dbeea9f0fc2"
@@ -6615,14 +6550,6 @@ os-locale@^1.4.0:
   dependencies:
     lcid "^1.0.0"
 
-os-locale@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
-  dependencies:
-    execa "^1.0.0"
-    lcid "^2.0.0"
-    mem "^4.0.0"
-
 os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
@@ -6635,18 +6562,10 @@ p-cancelable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-1.1.0.tgz#d078d15a3af409220c886f1d9a0ca2e441ab26cc"
 
-p-defer@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
-
 p-finally@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
 
-p-is-promise@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
-
 p-limit@^1.1.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
@@ -6822,7 +6741,7 @@ path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-path-key@^2.0.0, path-key@^2.0.1:
+path-key@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
 
@@ -7965,10 +7884,6 @@ strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
 
-strip-eof@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
-
 strip-hex-prefix@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz#0c5f155fef1151373377de9dbb588da05500e36f"
@@ -9456,7 +9371,7 @@ yallist@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
 
-yargs-parser@13.1.2, yargs-parser@^13.0.0, yargs-parser@^13.1.0, yargs-parser@^13.1.2:
+yargs-parser@13.1.2, yargs-parser@^13.0.0, yargs-parser@^13.1.2:
   version "13.1.2"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"
   dependencies:
@@ -9495,22 +9410,6 @@ yargs-unparser@2.0.0:
     flat "^5.0.2"
     is-plain-obj "^2.1.0"
 
-yargs@13.2.4:
-  version "13.2.4"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.2.4.tgz#0b562b794016eb9651b98bd37acf364aa5d6dc83"
-  dependencies:
-    cliui "^5.0.0"
-    find-up "^3.0.0"
-    get-caller-file "^2.0.1"
-    os-locale "^3.1.0"
-    require-directory "^2.1.1"
-    require-main-filename "^2.0.0"
-    set-blocking "^2.0.0"
-    string-width "^3.0.0"
-    which-module "^2.0.0"
-    y18n "^4.0.0"
-    yargs-parser "^13.1.0"
-
 yargs@13.3.2, yargs@^13.2.2, yargs@^13.3.0:
   version "13.3.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"