Merge pull request #23 from netlify/small-ux-tweaks

Some small UX tweaks

Author: biilmann

src/commands/dev/index.js

@@ -77,6 +77,13 @@ async function startProxy(settings, addonUrls) {
 function startDevServer(settings, log, error) {
   if (settings.noCmd) {
     const StaticServer = require('static-dev-server')
+    if (!settings.dist) {
+      log(
+        'Unable to determine public folder for the dev server.\nSetup a netlify.toml file with a [dev] section to specify your dev server settings.'
+      )
+      process.exit(1)
+    }
+
     const server = new StaticServer({
       rootPath: settings.dist,
       name: 'netlify-dev',
@@ -115,7 +122,9 @@ class DevCommand extends Command {
     const {flags, args} = this.parse(DevCommand)
     const {api, site, config} = this.netlify
     const functionsDir =
-      flags.functions || (config.build && config.build.functions)
+      flags.functions ||
+      (config.dev && config.dev.functions) ||
+      (config.build && config.build.functions)
     const addonUrls = {}
     if (site.id && !flags.offline) {
       const accessToken = await this.authenticate()
@@ -145,11 +154,14 @@ class DevCommand extends Command {
     let settings = serverSettings(config.dev)
     if (!(settings && settings.cmd)) {
       this.log('No dev server detected, using simple static server')
+      const dist =
+        (config.dev && config.dev.publish) ||
+        (config.build && config.build.publish)
       settings = {
         noCmd: true,
         port: 8888,
         proxyPort: 3999,
-        dist: config.build && config.build.publish,
+        dist,
       }
     }
     startDevServer(settings, this.log, this.error)