Add helper functions for vterm

home-manager/software/emacs/default.nix

@@ -109,4 +109,26 @@
     enable = true;
     client.enable = true;
   };
+
+  programs.bash = {
+    enable = true;
+    bashrcExtra = ''
+      vterm_printf(){
+          if [ -n "$TMUX" ] && ([ "\$\{TERM%%-*}" = "tmux" ] || [ "\$\{TERM%%-*}" = "screen" ] ); then
+              # Tell tmux to pass the escape sequences through
+              printf "\ePtmux;\e\e]%s\007\e\\" "$1"
+          elif [ "\$\{TERM%%-*}" = "screen" ]; then
+              # GNU screen (screen, screen-256color, screen-256color-bce)
+              printf "\eP\e]%s\007\e\\" "$1"
+          else
+              printf "\e]%s\e\\" "$1"
+          fi
+      }
+
+      vterm_prompt_end(){
+          vterm_printf "51;A$(whoami)@$(hostname):$(pwd)"
+      }
+      PS1=$PS1'\[$(vterm_prompt_end)\]'
+    '';
+  };
 }