feat(deep-clean): deep-clean deletes all generations except current one

- Running deep-clean will now delete all generations for home-manager
and nixos except the latest one before cleaning dangling derivations

1 files changed, 18 insertions, 13 deletions

diff --git a/modules/scripts/deep-clean/script.sh b/modules/scripts/deep-clean/script.sh
index dcbd62b..bb28182 100644
--- a/modules/scripts/deep-clean/script.sh
+++ b/modules/scripts/deep-clean/script.sh
@@ -1,30 +1,35 @@
-echo "--- Starting Nix Deep Clean ---"
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "--- Starting Nix Deep Clean (keeping only current generations) ---"
 
 if [[ $EUID -eq 0 ]]; then
-  echo "Error: Do not run this script with 'sudo ./clean-nix.sh'."
-  echo "Run it as your normal user; it will ask for your password when needed."
+  echo "Error: Do not run this script with sudo."
+  echo "Run it as your normal user; it will ask for sudo when required."
   exit 1
 fi
 
-echo "Cleaning system generations..."
-sudo nix-env -p /nix/var/nix/profiles/system --delete-generations old
+echo "Removing old NixOS system generations..."
+sudo nix-env -p /nix/var/nix/profiles/system --delete-generations +1
 
+echo "Removing old Home Manager generations..."
 if command -v home-manager &> /dev/null; then
-  echo "Cleaning Home Manager generations..."
-  home-manager expire-generations "-0 days"
+  home-manager generations | \
+    awk 'NR>1 {print $1}' | \
+    xargs -r home-manager remove-generations
 fi
 
-echo "Cleaning user generations..."
-nix-env --delete-generations old
+echo "Removing old user profile generations..."
+nix-env --delete-generations +1
 
-echo "Removing 'result' symlinks in current directory..."
+echo "Removing result symlinks..."
 find . -name "result" -type l -delete
 
-echo "Running Garbage Collector..."
+echo "Running garbage collector..."
 sudo nix-collect-garbage -d
 nix-collect-garbage -d
 
-echo "Optimising the store (deduplicating files)..."
+echo "Optimising Nix store..."
 nix store optimise
 
-echo "--- Clean Up Complete ---"
+echo "--- Cleanup Complete ---"