feat: add command line options to control compacting and comment removal (#754)

Author: karottenreibe

index.js

@@ -136,7 +136,9 @@ NYC.prototype.instrumenter = function () {
 
 NYC.prototype._createInstrumenter = function () {
   return this._instrumenterLib(this.cwd, {
-    produceSourceMap: this.config.produceSourceMap
+    produceSourceMap: this.config.produceSourceMap,
+    compact: this.config.compact,
+    preserveComments: this.config.preserveComments
   })
 }
 

lib/commands/instrument.js

@@ -31,6 +31,16 @@ exports.builder = function (yargs) {
       type: 'boolean',
       description: "should nyc's instrumenter produce source maps?"
     })
+    .option('compact', {
+      default: true,
+      type: 'boolean',
+      description: 'should the output be compacted?'
+    })
+    .option('preserve-comments', {
+      default: true,
+      type: 'boolean',
+      description: 'should comments be preserved in the output?'
+    })
     .option('instrument', {
       default: true,
       type: 'boolean',
@@ -50,7 +60,9 @@ exports.handler = function (argv) {
     sourceMap: argv.sourceMap,
     produceSourceMap: argv.produceSourceMap,
     extension: argv.extension,
-    require: argv.require
+    require: argv.require,
+    compact: argv.compact,
+    preserveComments: argv.preserveComments
   })
 
   nyc.instrumentAllFiles(argv.input, argv.output, function (err) {

lib/config-util.js

@@ -165,6 +165,16 @@ Config.buildYargs = function (cwd) {
       description: "should nyc's instrumenter produce source maps?",
       global: false
     })
+    .option('compact', {
+      default: true,
+      type: 'boolean',
+      description: 'should the output be compacted?'
+    })
+    .option('preserve-comments', {
+      default: true,
+      type: 'boolean',
+      description: 'should comments be preserved in the output?'
+    })
     .option('instrument', {
       default: true,
       type: 'boolean',

lib/instrumenters/istanbul.js

@@ -9,8 +9,8 @@ function InstrumenterIstanbul (cwd, options) {
     autoWrap: true,
     coverageVariable: '__coverage__',
     embedSource: true,
-    noCompact: false,
-    preserveComments: true,
+    compact: options.compact,
+    preserveComments: options.preserveComments,
     produceSourceMap: options.produceSourceMap,
     esModules: true
   })