From ff5cbb32524e613e47f01669ed12dba46d41e403 Mon Sep 17 00:00:00 2001
From: Michael Vorburger <vorburger@google.com>
Date: Sun, 29 Oct 2023 02:06:02 +0200
Subject: [PATCH] Add sample/watch.sh and document it in the codelab-4-codelab
 sample (pending #881)

---
 sample/codelab.md |  5 +++++
 sample/watch.sh   | 10 ++++++++++
 2 files changed, 15 insertions(+)
 create mode 100755 sample/watch.sh

diff --git a/sample/codelab.md b/sample/codelab.md
index d980a115b..7829cd8fc 100644
--- a/sample/codelab.md
+++ b/sample/codelab.md
@@ -202,6 +202,11 @@ $ claat serve
 * Choose the directory that matches your "id" that you put in the headers. 
 * Viola! You should have your first codelab!
 
+For a "tight inner loop" while writing Codelabs, you can use a tool like e.g. [`entr`](https://github.com/eradman/entr)
+with a [watch script such as this one](https://github.com/googlecodelabs/tools/blob/main/sample/watch.sh); this allows
+to change your Markdown source file, Ctrl-S to Save it, F5 to reload in the brower - without having to constantly retype
+the commands above every time.
+
 ## Host Your CodeLab
 Duration: 0:01:00
 
diff --git a/sample/watch.sh b/sample/watch.sh
new file mode 100755
index 000000000..3d7895eaa
--- /dev/null
+++ b/sample/watch.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# TODO Implement https://github.com/googlecodelabs/tools/issues/881 and remove this! ;-)
+
+../claat/bin/claat serve &
+claatServePID=$?
+trap 'kill ${claatServePID}' EXIT
+
+echo codelab.md | entr ../claat/bin/claat export codelab.md