repl: don't override all internal repl defaults

The createInternalRepl() module accepts an options object as an argument. However, if one is provided, it overrides all of the default options. This commit applies the options object to the defaults, only changing the values that are explicitly set. PR-URL: #7826 Reviewed-By: James M Snell <jasnell@gmail.com>

Author: cjihrig

lib/internal/repl.js

@@ -5,7 +5,8 @@ const REPL = require('repl');
 const path = require('path');
 const fs = require('fs');
 const os = require('os');
-const debug = require('util').debuglog('repl');
+const util = require('util');
+const debug = util.debuglog('repl');
 
 module.exports = Object.create(REPL);
 module.exports.createInternalRepl = createRepl;
@@ -19,12 +20,12 @@ function createRepl(env, opts, cb) {
  cb = opts;
  opts = null;
  }
- opts = opts || {
+ opts = util._extend({
  ignoreUndefined: false,
  terminal: process.stdout.isTTY,
  useGlobal: true,
  breakEvalOnSigint: true
- };
+ }, opts);
 
  if (parseInt(env.NODE_NO_READLINE)) {
  opts.terminal = false;

test/parallel/test-repl-envvars.js

@@ -2,7 +2,7 @@
 
 // Flags: --expose-internals
 
-require('../common');
+const common = require('../common');
 const stream = require('stream');
 const REPL = require('internal/repl');
 const assert = require('assert');
@@ -46,6 +46,10 @@ function run(test) {
 
  REPL.createInternalRepl(env, opts, function(err, repl) {
  if (err) throw err;
+
+ // The REPL registers 'module' and 'require' globals
+ common.allowGlobals(repl.context.module, repl.context.require);
+
  assert.equal(expected.terminal, repl.terminal,
  'Expected ' + inspect(expected) + ' with ' + inspect(env));
  assert.equal(expected.useColors, repl.useColors,

test/parallel/test-repl-history-perm.js

@@ -35,6 +35,10 @@ const replHistoryPath = path.join(common.tmpDir, '.node_repl_history');
 const checkResults = common.mustCall(function(err, r) {
  if (err)
  throw err;
+
+ // The REPL registers 'module' and 'require' globals
+ common.allowGlobals(r.context.module, r.context.require);
+
  r.input.end();
  const stat = fs.statSync(replHistoryPath);
  assert.strictEqual(

test/parallel/test-repl-persistent-history.js

@@ -262,6 +262,9 @@ function runTest(assertCleaned) {
  throw err;
  }
 
+ // The REPL registers 'module' and 'require' globals
+ common.allowGlobals(repl.context.module, repl.context.require);
+
  repl.once('close', () => {
  if (repl._flushing) {
  repl.once('flushHistory', onClose);

test/parallel/test-repl-use-global.js

@@ -7,8 +7,6 @@ const stream = require('stream');
 const repl = require('internal/repl');
 const assert = require('assert');
 
-common.globalCheck = false;
-
 // Array of [useGlobal, expectedResult] pairs
 const globalTestCases = [
  [false, 'undefined'],
@@ -20,6 +18,9 @@ const globalTest = (useGlobal, cb, output) => (err, repl) => {
  if (err)
  return cb(err);
 
+ // The REPL registers 'module' and 'require' globals
+ common.allowGlobals(repl.context.module, repl.context.require);
+
  let str = '';
  output.on('data', (data) => (str += data));
  global.lunch = 'tacos';