nu: Add shadir helper

tree/.config/nushell/config.nu.tpl

@@ -58,6 +58,7 @@ source ~/.local/nu/readelf.nu
 source ~/.local/nu/mullvad.nu
 source ~/.local/nu/git.nu
 source ~/.local/nu/tailscale.nu
+source ~/.local/nu/shadir.nu
 {% if os == "darwin" %}
 source ~/.local/nu/macos.nu
 {% end %}

tree/.local/nu/shadir.nu

@@ -0,0 +1,5 @@
+def shadir [
+  p: path, # Path to the directory to be sha256summed
+]: nothing -> string {
+  (^find $p -type f -print0 | xargs -0 sha256sum | ^sort | sha256sum)
+}