nix-your-shell: build-time nushell config generation

modules/programs/nix-your-shell.nix

@@ -25,22 +25,21 @@ in {
 
     programs = {
       fish.interactiveShellInit = lib.mkIf cfg.enableFishIntegration ''
-        ${cfg.package}/bin/nix-your-shell fish | source
+        ${lib.getExe cfg.package} fish | source
       '';
 
       nushell = lib.mkIf cfg.enableNushellIntegration {
-        extraEnv = ''
-          mkdir ${config.xdg.cacheHome}/nix-your-shell
-          ${cfg.package}/bin/nix-your-shell nu | save --force ${config.xdg.cacheHome}/nix-your-shell/init.nu
-        '';
-
         extraConfig = ''
-          source ${config.xdg.cacheHome}/nix-your-shell/init.nu
+          source ${
+            pkgs.runCommand "nix-your-shell-nushell-config" { } ''
+              ${lib.getExe cfg.package} nu >> "$out"
+            ''
+          }
         '';
       };
 
       zsh.initContent = lib.mkIf cfg.enableZshIntegration ''
-        ${cfg.package}/bin/nix-your-shell zsh | source /dev/stdin
+        ${lib.getExe cfg.package} zsh | source /dev/stdin
       '';
     };
   };

tests/modules/programs/nix-your-shell/enable-shells.nix

@@ -1,4 +1,4 @@
-{ pkgs, config, ... }:
+{ lib, pkgs, realPkgs, config, ... }:
 
 {
   programs = {
@@ -13,6 +13,8 @@
     zsh.enable = true;
   };
 
+  _module.args.pkgs = lib.mkForce realPkgs;
+
   nmt.script = let
     nushellConfigDir = if pkgs.stdenv.isDarwin && !config.xdg.enable then
       "home-files/Library/Application Support/nushell"
@@ -20,23 +22,18 @@
       "home-files/.config/nushell";
   in ''
     assertFileExists home-files/.config/fish/config.fish
-    assertFileContains \
+    assertFileRegex \
       home-files/.config/fish/config.fish \
-      '@nix-your-shell@/bin/nix-your-shell fish | source'
+      '/nix/store/[^/]*-nix-your-shell-[^/]*/bin/nix-your-shell fish | source'
 
     assertFileExists ${nushellConfigDir}/config.nu
-    assertFileContains \
+    assertFileRegex \
       ${nushellConfigDir}/config.nu \
-      'source ${config.xdg.cacheHome}/nix-your-shell/init.nu'
-
-    assertFileExists ${nushellConfigDir}/env.nu
-    assertFileContains \
-      ${nushellConfigDir}/env.nu \
-      '@nix-your-shell@/bin/nix-your-shell nu | save --force ${config.xdg.cacheHome}/nix-your-shell/init.nu'
+      'source /nix/store/[^/]*-nix-your-shell-nushell-config'
 
     assertFileExists home-files/.zshrc
-    assertFileContains \
+    assertFileRegex \
       home-files/.zshrc \
-      '@nix-your-shell@/bin/nix-your-shell zsh | source /dev/stdin'
+      '/nix/store/[^/]*-nix-your-shell-[^/]*/bin/nix-your-shell zsh | source /dev/stdin'
   '';
 }