Add archlinux-nix dependency

nix.install

@@ -1,97 +1,49 @@
-
-pre_install () {
-  # Check that the group and users don't already exist
-  if [[ -n $(cut -d: -f1 /etc/group | grep -w nixbld) ]]; then
-    echo "The nixbld group already exists.  This install cannot proceed."
-    exit 1
-  fi
-
-  for i in {1..10}; do
-    if [[ -n $(cut -d: -f1 /etc/passwd | grep -w nixbld$i) ]]; then
-      echo "The nixbld$i user already exists.  This install cannot proceed."
-      exit 1
-    fi
-  done
-}
-
-create_users () {
-  # Create a nixbld group.
-  groupadd -r nixbld
-
-  # Create 10 nixbld{i} users
-  for i in {1..10}; do
-    useradd -g nixbld -G nixbld -r -N -M -d /var/empty -s /sbin/nologin nixbld$i
-  done
-}
-
-delete_users() {
-  # Remove the users
-  for i in {1..10}; do
-    userdel nixbld$i
-  done
-
-  # Remove the group
-  groupdel nixbld
-}
-
-create_store() {
-  # Create nix folders and set permissions
-  mkdir -p /nix/store
-  chown root.nixbld /nix/store
-  chmod 1775 /nix/store
-  mkdir -p -m 1777 /nix/var/nix/gcroots/per-user
-  mkdir -p -m 1777 /nix/var/nix/profiles/per-user
-}
-
-restore_store() {
-  # Restore folder permissions
-  chmod 755 /nix/store
-  chown root.root /nix/store
-}
-
-init_channels() {
- # Initialize default nix channel
-  echo "Initializing default nix channel"
-  source /etc/profile.d/nix.sh
-  nix-channel --update
-}
-
-daemon_info() {
-  echo "To start the nix daemon, execute one of the following:"
+install_info() {
+  echo "Nix is installed and configured, and the nix-daemon should be running.  To check,"
+  echo "you can run:"
   echo
-  echo "    systemctl enable nix-daemon.socket       # Sets the daemon to start on next boot"
-  echo "    systemctl enable --now nix-daemon.socket # Starts now and on next boot too"
+  echo "    archlinux-nix status"
   echo
-  echo "Also, if this is a new install, you need to start a new login shell or otherwise"
+  echo "Each user's environment is setup on login.  Alternatively, you can execute the"
+  echo "following to avoid having to log back in:"
   echo
-  echo "    source /etc/profile.d/nix.sh"
-  echo "    source /etc/profile.d/nix-daemon.sh"
+  echo "    source /etc/profile.d/nix{,-daemon}.sh"
+  echo
+  echo "For more information on how to use nix, check out Part III of the Nix Manual:"
+  echo
+  echo "    https://nixos.org/nix/manual/#chap-package-management"
+  echo
+}
+
+remove_info() {
+  echo "You may wish to do some clean up:"
+  echo
+  echo "1. delete /nix folder"
+  echo "   # rm -r /nix"
+  echo
+  echo "2. delete the build users (if any)"
+  echo "   # archlinux-nix delete-build-group"
+  echo
+  echo "3. delete the config dir"
+  echo "   # rm -r /etc/nix"
+  echo
+  echo "4. uninstall the archlinux-nix tool"
+  echo "   pacman -R archlinux-nix"
+  echo
+  echo "5. you may also want to delete nix-related files from users' home dirs"
+  echo "   # rm -r /root/.nix-* /home/*/.nix-*"
   echo
-  echo "Once your environment is set-up, you will need to add some channels.  You can see how"
-  echo "to do that here:"
-  echo "    https://nixos.org/nix/manual/#sec-channels"
 }
 
 post_install() {
-  create_users
-  create_store
-  init_channels
-  daemon_info
-}
-
-pre_upgrade() {
-  systemctl stop nix-daemon.socket
-  systemctl stop nix-daemon
+  archlinux-nix bootstrap
+  install_info
 }
 
 post_upgrade() {
-  delete_users
-  create_users
-  create_store
-  daemon_info
+  archlinux-nix bootstrap
 }
 
-pre_remove() {
-  restore_store
-  delete_users
+post_remove() {
+  remove_info
 }