Use loglevel instead of verbose flag

2 files changed, 12 insertions, 14 deletions

diff --git a/packages/sol-cov/package.json b/packages/sol-cov/package.json
index e4d8c6da8..0edffb1d2 100644
--- a/packages/sol-cov/package.json
+++ b/packages/sol-cov/package.json
@@ -46,17 +46,18 @@
     },
     "homepage": "https://github.com/0xProject/0x.js/packages/sol-cov/README.md",
     "dependencies": {
+        "@0xproject/sol-compiler": "^0.4.3",
         "@0xproject/subproviders": "^0.10.2",
         "@0xproject/types": "^0.7.0",
         "@0xproject/typescript-typings": "^0.3.2",
         "@0xproject/utils": "^0.6.2",
-        "@0xproject/sol-compiler": "^0.4.3",
         "ethereumjs-util": "^5.1.1",
-        "rimraf": "^2.6.2",
         "glob": "^7.1.2",
         "istanbul": "^0.4.5",
         "lodash": "^4.17.4",
+        "loglevel": "^1.6.1",
         "mkdirp": "^0.5.1",
+        "rimraf": "^2.6.2",
         "semaphore-async-await": "^1.5.1",
         "solidity-parser-antlr": "^0.2.8"
     },
@@ -64,10 +65,11 @@
         "@0xproject/monorepo-scripts": "^0.1.20",
         "@0xproject/tslint-config": "^0.4.18",
         "@types/istanbul": "^0.4.30",
-        "@types/rimraf": "^2.0.2",
+        "@types/loglevel": "^1.5.3",
         "@types/mkdirp": "^0.5.1",
         "@types/mocha": "^2.2.42",
         "@types/node": "^8.0.53",
+        "@types/rimraf": "^2.0.2",
         "chai": "^4.0.1",
         "copyfiles": "^1.2.0",
         "dirty-chai": "^2.0.1",
diff --git a/packages/sol-cov/src/coverage_manager.ts b/packages/sol-cov/src/coverage_manager.ts
index d7a00f86d..3aa62acff 100644
--- a/packages/sol-cov/src/coverage_manager.ts
+++ b/packages/sol-cov/src/coverage_manager.ts
@@ -3,6 +3,7 @@ import { addHexPrefix, stripHexPrefix } from 'ethereumjs-util';
 import * as fs from 'fs';
 import { Collector } from 'istanbul';
 import * as _ from 'lodash';
+import { getLogger, levels, Logger, LogLevel } from 'loglevel';
 import * as mkdirp from 'mkdirp';
 import * as path from 'path';
 
@@ -35,7 +36,7 @@ const mkdirpAsync = promisify<undefined>(mkdirp);
 
 export class CoverageManager {
     private _artifactAdapter: AbstractArtifactAdapter;
-    private _verbose: boolean;
+    private _logger: Logger;
     private _traceInfos: TraceInfo[] = [];
     private _getContractCodeAsync: (address: string) => Promise<string>;
     private static _getSingleFileCoverageForTrace(
@@ -124,7 +125,7 @@ export class CoverageManager {
     }
     private static _getContractDataIfExists(contractsData: ContractData[], bytecode: string): ContractData | undefined {
         if (!bytecode.startsWith('0x')) {
-            throw new Error(')x missing');
+            throw new Error('0x missing');
         }
         const contractData = _.find(contractsData, contractDataCandidate => {
             const bytecodeRegex = CoverageManager._bytecodeToBytecodeRegex(contractDataCandidate.bytecode);
@@ -142,7 +143,8 @@ export class CoverageManager {
     ) {
         this._getContractCodeAsync = getContractCodeAsync;
         this._artifactAdapter = artifactAdapter;
-        this._verbose = verbose;
+        this._logger = getLogger('sol-cov');
+        this._logger.setLevel(verbose ? levels.TRACE : levels.ERROR);
     }
     public appendTraceInfo(traceInfo: TraceInfo): void {
         this._traceInfos.push(traceInfo);
@@ -162,10 +164,7 @@ export class CoverageManager {
                 const runtimeBytecode = (traceInfo as TraceInfoExistingContract).runtimeBytecode;
                 const contractData = CoverageManager._getContractDataIfExists(contractsData, runtimeBytecode);
                 if (_.isUndefined(contractData)) {
-                    if (this._verbose) {
-                        // tslint:disable-next-line:no-console
-                        console.warn(`Transaction to an unknown address: ${traceInfo.address}`);
-                    }
+                    this._logger.warn(`Transaction to an unknown address: ${traceInfo.address}`);
                     continue;
                 }
                 const bytecodeHex = stripHexPrefix(runtimeBytecode);
@@ -190,10 +189,7 @@ export class CoverageManager {
                 const bytecode = (traceInfo as TraceInfoNewContract).bytecode;
                 const contractData = CoverageManager._getContractDataIfExists(contractsData, bytecode);
                 if (_.isUndefined(contractData)) {
-                    if (this._verbose) {
-                        // tslint:disable-next-line:no-console
-                        console.warn(`Unknown contract creation transaction`);
-                    }
+                    this._logger.warn(`Unknown contract creation transaction`);
                     continue;
                 }
                 const bytecodeHex = stripHexPrefix(bytecode);