refactor to avoid node v6 issue where the process ends before process.stdout is flushed

README.md

@@ -84,7 +84,7 @@ For the examples below, we assume we're in a project directory looking like this
 └── package.json
 ```
 
-All paths/routes are specified using [express syntax](http://expressjs.com/guide/routing.html#route-paths). To run the example projects linked below, clone the project, move into the example directory specified, run `ws`.
+**All paths/routes are specified using [express syntax](http://expressjs.com/guide/routing.html#route-paths)**. To run the example projects linked below, clone the project, move into the example directory specified, run `ws`.
 
 ### Static site
 

bin/cli.js

@@ -14,12 +14,26 @@ const flatten = require('reduce-flatten')
 const cli = commandLineArgs(cliOptions.definitions)
 const usage = cli.getUsage(cliOptions.usageData)
 const stored = loadConfig('local-web-server')
-const options = collectOptions()
+let options
+let isHttps = false
 
-if (options.misc.help) stop(usage, 0)
-if (options.misc.config) stop(JSON.stringify(options.server, null, '  '), 0)
+try {
+  options = collectOptions()
+} catch (err) {
+  stop([ `[red]{Error}: ${err.message}`, usage ], 1)
+  return
+}
 
-validateOptions(options)
+if (options.misc.help) {
+  stop(usage, 0)
+} else if (options.misc.config) {
+  stop(JSON.stringify(options.server, null, '  '), 0)
+} else {
+  const valid = validateOptions(options)
+  if (!valid) {
+    /* gracefully end the process */
+    return
+  }
 
   const app = localWebServer({
     static: {
@@ -53,7 +67,6 @@ if (options.server.https) {
     options.server.cert = path.resolve(__dirname, '..', 'ssl', '127.0.0.1.crt')
   }
 
-let isHttps = false
   if (options.server.key && options.server.cert) {
     const https = require('https')
     const fs = require('fs')
@@ -69,10 +82,11 @@ if (options.server.key && options.server.cert) {
   } else {
     app.listen(options.server.port, onServerUp)
   }
+}
 
 function stop (msgs, exitCode) {
   arrayify(msgs).forEach(msg => console.error(ansi.format(msg)))
-  process.exit(exitCode)
+  process.exitCode = exitCode
 }
 
 function onServerUp () {
@@ -96,11 +110,7 @@ function collectOptions () {
   let options = {}
 
   /* parse command line args */
-  try {
   options = cli.parse()
-  } catch (err) {
-    stop([ `[red]{Error}: ${err.message}`, usage ], 1)
-  }
 
   const builtIn = {
     port: 8000,
@@ -129,10 +139,14 @@ function parseRewriteRules (rules) {
 }
 
 function validateOptions (options) {
+  let valid = true
   function invalid (msg) {
     return `[red underline]{Invalid:} [bold]{${msg}}`
   }
+
   if (!t.isNumber(options.server.port)) {
-    stop([ invalid(`--port must be numeric [value=${options.server.port}]`), usage ], 1)
+    stop([ invalid(`--port must be numeric`), usage ], 1)
+    valid = false
   }
+  return valid
 }

example/mock-async/mocks/delayed.js

@@ -2,7 +2,7 @@ module.exports = {
   response: function (ctx) {
     return new Promise((resolve, reject) => {
       setTimeout(() => {
-        ctx.body = `<h1>You waited 2s for this</h1>`
+        ctx.body = '<h1>You waited 2s for this</h1>'
         resolve()
       }, 2000)
     })