pkgs/clerie-update-nixfiles: Add script to delete old update-nixfiles branches

pkgs/clerie-update-nixfiles/clerie-cleanup-branches.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "clerie-cleanup-branches";
+  text = builtins.readFile ./clerie-cleanup-branches.sh;
+  runtimeInputs = with pkgs; [
+    git
+  ];
+}
+

pkgs/clerie-update-nixfiles/clerie-cleanup-branches.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# Removes all branches from origin starting with updated-inputs-* except the 8 newest ones
+
+git fetch origin --prune
+
+git branch -r | sed "s/^ *//g" | grep "^origin/updated-inputs-" | sort | head -n -8 | sed "s/^origin\///g" | xargs git push origin --delete