refactor(cli): Update watching (#716)

- For now hardcode ignore JetBrain's "safe file changes".
- Show events for new files and directories
- Update spec on new files

cli/index.ts

@@ -115,8 +115,8 @@ YargsParser.command(
       yargs.demandOption('spec');
       return yargs;
     },
-    async argv => {
-      const config: Options = {
+    async (argv: any) => {
+      const config = {
         ssr: true,
         output: argv.o as string,
         cdn: argv.cdn as boolean,
@@ -188,21 +188,34 @@ async function serve(port: number, pathToSpec: string, options: Options = {}) {
   if (options.watch && existsSync(pathToSpec)) {
     const pathToSpecDirectory = resolve(dirname(pathToSpec));
     const watchOptions = {
-      ignored: /(^|[\/\\])\../,
+      ignored: [/(^|[\/\\])\../, /___jb_[a-z]+___$/],
+      ignoreInitial: true,
     };
 
     const watcher = watch(pathToSpecDirectory, watchOptions);
     const log = console.log.bind(console);
+
+    const handlePath = async path => {
+      try {
+        spec = await loadAndBundleSpec(pathToSpec);
+        pageHTML = await getPageHTML(spec, pathToSpec, options);
+        log('Updated successfully');
+      } catch (e) {
+        console.error('Error while updating: ', e.message);
+      }
+    };
+
     watcher
       .on('change', async path => {
         log(`${path} changed, updating docs`);
-        try {
-          spec = await loadAndBundleSpec(pathToSpec);
-          pageHTML = await getPageHTML(spec, pathToSpec, options);
-          log('Updated successfully');
-        } catch (e) {
-          console.error('Error while updating: ', e.message);
-        }
+        handlePath(path);
+      })
+      .on('add', async path => {
+        log(`File ${path} added, updating docs`);
+        handlePath(path);
+      })
+      .on('addDir', path => {
+        log(`↗  Directory ${path} added. Files in here will trigger reload.`);
       })
       .on('error', error => console.error(`Watcher error: ${error}`))
       .on('ready', () => log(`👀  Watching ${pathToSpecDirectory} for changes...`));