alias nnn to n with autocd on exit

home.nix

@@ -1054,7 +1054,7 @@ in
       suspend = "systemctl suspend";
       logout = "sudo pkill -u fredrikr";
       lock = "/home/fredrikr/.logout.sh";
-      n = "nvim";
+      nv = "nvim";
       e = "emacsclient -c -a 'emacs'";
       nnn = "nnn -e";
       jl = "jj l";
@@ -1130,6 +1130,39 @@ in
       # compinit
       source <(jj util completion zsh)
       source <(COMPLETE=zsh jj)
+
+      # --------- autocd on nnn quit ----------
+      n ()
+      {
+          # Block nesting of nnn in subshells
+          [ "''${NNNLVL:-0}" -eq 0 ] || {
+              echo "nnn is already running"
+              return
+          }
+
+          # The behaviour is set to cd on quit (nnn checks if NNN_TMPFILE is set)
+          # If NNN_TMPFILE is set to a custom path, it must be exported for nnn to
+          # see. To cd on quit only on ^G, remove the "export" and make sure not to
+          # use a custom path, i.e. set NNN_TMPFILE *exactly* as follows:
+          #      NNN_TMPFILE="''${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.lastd"
+          NNN_TMPFILE="''${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.lastd"
+
+          # Unmask ^Q (, ^V etc.) (if required, see `stty -a`) to Quit nnn
+          # stty start undef
+          # stty stop undef
+          # stty lwrap undef
+          # stty lnext undef
+
+          # The command builtin allows one to alias nnn to n, if desired, without
+          # making an infinitely recursive alias
+          command nnn -e "$@"
+
+          [ ! -f "$NNN_TMPFILE" ] || {
+              . "$NNN_TMPFILE"
+              rm -f -- "$NNN_TMPFILE" > /dev/null
+          }
+      }
+      # ---------------------------------------
     '';
   };