Initial poop

docs/programming/watchdir.md

@@ -0,0 +1,18 @@
+# Watch directory for changes
+
+Watching directory for changes can be useful for example let's say you have a markdown based knowledgebase and want to automagically rebuild statically served html-site. Like this one right here!
+
+## Script
+
+Use #bash and make a fancy scriptie using `inotify-tools`. This can be installed from debian repos using `sudo apt install inotify-tools`. For example this #mkdocs site uses following at the time of writing:
+
+``` sh
+#!/bin/sh
+. bin/activate
+while true
+do
+    mkdocs build
+    inotifywait -r dokut
+done
+```
+Main takes here are the infinite loop that rebuilds docs and then waits for any change in directory (recursively) before looping again. Here would also be a good place to setup some `sleep`ing to ratelimit things or a more complex script to even wait no more changes are detected for some time...