Merge compilerOptions env variable with CLI arg (#213)

Author: blakeembrey

src/_bin.ts

@@ -7,7 +7,7 @@ import minimist = require('minimist')
 import chalk = require('chalk')
 import { diffLines } from 'diff'
 import { createScript } from 'vm'
-import { register, VERSION, getFile, fileExists, TSError } from './index'
+import { register, VERSION, getFile, fileExists, TSError, parse } from './index'
 
 interface Argv {
   eval?: string
@@ -168,7 +168,7 @@ const service = register({
   ignore: typeof argv.ignore === 'boolean' ? argv.ignore : arrify(argv.ignore),
   ignoreWarnings: arrify(argv.ignoreWarnings),
   disableWarnings: argv.disableWarnings,
-  compilerOptions: argv.compilerOptions,
+  compilerOptions: parse(argv.compilerOptions),
   getFile: isEval ? getFileEval : getFile,
   fileExists: isEval ? fileExistsEval : fileExists
 })

src/index.ts

@@ -98,7 +98,7 @@ const DEFAULTS = {
   cacheDirectory: process.env.TS_NODE_CACHE_DIRECTORY,
   disableWarnings: yn(process.env.TS_NODE_DISABLE_WARNINGS),
   compiler: process.env.TS_NODE_COMPILER,
-  compilerOptions: process.env.TS_NODE_COMPILER_OPTIONS,
+  compilerOptions: parse(process.env.TS_NODE_COMPILER_OPTIONS),
   project: process.env.TS_NODE_PROJECT,
   ignore: split(process.env.TS_NODE_IGNORE),
   ignoreWarnings: split(process.env.TS_NODE_IGNORE_WARNINGS),
@@ -108,14 +108,21 @@ const DEFAULTS = {
 /**
  * Split a string array of values.
  */
-function split (value: string | undefined) {
+export function split (value: string | undefined) {
   return value ? value.split(/ *, */g) : []
 }
 
+/**
+ * Parse a string as JSON.
+ */
+export function parse (value: string | undefined) {
+  return value ? JSON.parse(value) : undefined
+}
+
 /**
  * Replace backslashes with forward slashes.
  */
-function slash (value: string): string {
+export function slash (value: string): string {
   return value.replace(/\\/g, '/')
 }
 
@@ -138,6 +145,7 @@ export function register (options: Options = {}): () => Register {
   const fast = !!(options.fast == null ? DEFAULTS.fast : options.fast)
   const project = options.project || DEFAULTS.project
   const cacheDirectory = options.cacheDirectory || DEFAULTS.cacheDirectory || join(tmpdir(), 'ts-node')
+  const compilerOptions = extend(DEFAULTS.compilerOptions, options.compilerOptions)
   let result: Register
 
   const ignore = (
@@ -146,14 +154,9 @@ export function register (options: Options = {}): () => Register {
         (options.ignore === false ? [] : undefined) :
         (options.ignore || DEFAULTS.ignore)
     ) ||
-    ['^node_modules/']
+    ['/node_modules/']
   ).map(str => new RegExp(str))
 
-  // Parse compiler options as JSON.
-  const compilerOptions = typeof options.compilerOptions === 'string' ?
-    JSON.parse(options.compilerOptions) :
-    options.compilerOptions
-
   function load () {
     const cache: Cache = { contents: {}, versions: {}, sourceMaps: {} }