Merge pull request #67225 from matthewbauer/tramp-zshrc-fix

nixos/zsh: Fix tramp support

nixos/modules/programs/zsh/zsh.nix

@@ -69,9 +69,7 @@ in
 
       promptInit = mkOption {
         default = ''
-          if [ "$TERM" != dumb ]; then
-              autoload -U promptinit && promptinit && prompt walters && setopt prompt_sp
-          fi
+          autoload -U promptinit && promptinit && prompt walters && setopt prompt_sp
         '';
         description = ''
           Shell script code used to initialise the zsh prompt.
@@ -213,6 +211,15 @@ in
 
         ${cfg.promptInit}
 
+        # Need to disable features to support TRAMP
+        if [ "$TERM" = dumb ]; then
+            unsetopt zle prompt_cr prompt_subst
+            unfunction precmd preexec
+            unset RPS1 RPROMPT
+            PS1='$ '
+            PROMPT='$ '
+        fi
+
         # Read system-wide modifications.
         if test -f /etc/zshrc.local; then
             . /etc/zshrc.local