nushell: fix prompt

modules/common/nushell/config.nu

@@ -3,6 +3,9 @@ use std null_device
 
 source ~/.config/nushell/zoxide.nu
 
+$env.CARAPACE_BRIDGES = "inshellisense,carapace,zsh,fish,bash"
+source ~/.config/nushell/carapace.nu
+
 # Retrieve the output of the last command.
 def _ []: nothing -> any {
   $env.last?
@@ -54,29 +57,6 @@ $env.config.completions.case_sensitive = false
 $env.config.completions.quick = true
 $env.config.completions.partial = true
 $env.config.completions.use_ls_colors = true
-$env.config.completions.external.enable = true
-$env.config.completions.external.max_results = 100
-$env.config.completions.external.completer = {|tokens: list<string>|
-  let expanded = scope aliases
-  | where name == $tokens.0
-  | get --ignore-errors 0.expansion
-
-  mut tokens = if $expanded != null and $tokens.0 != "cd" {
-    $expanded | split row " " | append ($tokens | skip 1)
-  } else {
-    $tokens
-  }
-
-  $tokens.0 = $tokens.0 | str trim --left --char "^"
-
-  let command = $tokens
-  | str join " "
-  | str replace --all (char single_quote) $"\\(char single_quote)"
-
-  fish --command $"complete '--do-complete=($command)'"
-  | $"value(char tab)description(char newline)" + $in
-  | from tsv --flexible --no-infer
-}
 
 $env.config.use_kitty_protocol = true
 
@@ -199,19 +179,33 @@ do --env {
   def prompt-header [
     --left-char: string
   ]: nothing -> string {
+    let code = $env.LAST_EXIT_CODE
+
     let jj_workspace_root = try {
       jj workspace root err> $null_device
     } catch {
       ""
     }
 
+    let hostname = if ($env.SSH_CONNECTION? | is-not-empty) {
+      let hostname = try {
+        hostname
+      } catch {
+        "remote"
+      }
+
+      $"(ansi light_green_bold)@($hostname)(ansi reset) "
+    } else {
+      ""
+    }
+
     let body = if ($jj_workspace_root | is-not-empty) {
       let subpath = pwd | path relative-to $jj_workspace_root
       let subpath = if ($subpath | is-not-empty) {
         $"(ansi magenta_bold) → (ansi reset)(ansi blue)($subpath)"
       }
 
-      $"(ansi light_yellow_bold)($jj_workspace_root | path basename)($subpath)(ansi reset)"
+      $"($hostname)(ansi light_yellow_bold)($jj_workspace_root | path basename)($subpath)(ansi reset)"
     } else {
       let pwd = if (pwd | str starts-with $env.HOME) {
         "~" | path join (pwd | path relative-to $env.HOME)
@@ -219,7 +213,7 @@ do --env {
         pwd
       }
   
-      $"(ansi cyan)($pwd)(ansi reset)"
+      $"($hostname)(ansi cyan)($pwd)(ansi reset)"
     }
 
     let command_duration = ($env.CMD_DURATION_MS | into int) * 1ms
@@ -229,10 +223,10 @@ do --env {
       $"┫(ansi light_magenta_bold)($command_duration)(ansi light_yellow_bold)┣━"
     }
 
-    let exit_code = if $env.LAST_EXIT_CODE == 0 {
+    let exit_code = if $code == 0 {
       ""
     } else {
-      $"┫(ansi light_red_bold)($env.LAST_EXIT_CODE)(ansi light_yellow_bold)┣━"
+      $"┫(ansi light_red_bold)($code)(ansi light_yellow_bold)┣━"
     }
 
     let middle = if $command_duration == "" and $exit_code == "" {
@@ -303,6 +297,7 @@ let menus = [
       layout: ide
       border: false
       correct_cursor_pos: true
+      max_completion_height: 25
     }
     style: {
       text: white

modules/common/nushell/default.nix

@@ -1,5 +1,5 @@
 { config, lib, pkgs, ... }: let
-  inherit (lib) attrValues const disabled enabled getExe mapAttrs mkIf optionalAttrs readFile removeAttrs replaceString;
+  inherit (lib) attrValues const enabled getExe mapAttrs mkIf optionalAttrs readFile removeAttrs replaceString;
 in {
   environment = optionalAttrs config.isLinux {
     sessionVariables.SHELLS = getExe pkgs.nushell;
@@ -8,6 +8,7 @@ in {
 
     shellAliases = {
       la  = "ls --all";
+      ll  = "ls --long";
       lla = "ls --long --all";
       sl  = "ls";
 
@@ -22,8 +23,12 @@ in {
 
     systemPackages = attrValues {
       inherit (pkgs)
+        carapace      # For completions.
         fish          # For completions.
-        zoxide # For completions and better cd.
+        zsh           # For completions.
+        inshellisense # For completions.
+
+        zoxide   # For better cd.
       ;
     };
   };
@@ -32,6 +37,10 @@ in {
     homeConfig = homeArgs.config;
   in {
     xdg.configFile = {
+      "nushell/carapace.nu".source = pkgs.runCommand "carapace.nu" {} ''
+        ${getExe pkgs.carapace} _carapace nushell > $out
+      '';
+
       "nushell/zoxide.nu".source = pkgs.runCommand "zoxide.nu" {} ''
         ${getExe pkgs.zoxide} init nushell --cmd cd > $out
       '';
@@ -74,7 +83,6 @@ in {
 
       shellAliases = removeAttrs config.environment.shellAliases [ "ls" "l" ] // {
         cdtmp = "cd (mktemp --directory)";
-        ll    = "ls --long";
       };
     };
   })];