mkSandboxSystem: add tools and envVars option with printing

1 files changed, 19 insertions, 1 deletions

diff --git a/lib/mk-sandbox-system.nix b/lib/mk-sandbox-system.nix
index a56bdab..b678399 100644
--- a/lib/mk-sandbox-system.nix
+++ b/lib/mk-sandbox-system.nix
@@ -3,11 +3,16 @@ flake:
 , name ? "sandbox"
 , user ? "dummy"
 , config ? { }
+, tools ? []
+, envVars ? { }
 , restrictNetwork ? true  # to be replaced with virtualisation.restrictNetwork
 , patchQemu9p ? false  # until qemu 7.2.0 becomes available in nixpkgs
 }:
 
-rec {
+let
+  shellLib = flake.lib.shell { inherit pkgs; };
+
+in rec {
 
   nixosConfigurations.${name} = pkgs.nixos ({ modulesPath, lib, pkgs, ... }: {
     imports = [
@@ -43,6 +48,19 @@ rec {
       '';
     };
 
+    environment = {
+      variables = envVars;
+      systemPackages = tools;
+
+      # TODO: also print a summary of the host mount points
+      # TODO: also print a summary of the forwarded ports
+      interactiveShellInit = lib.mkBefore ''
+        ${lib.optionalString (envVars != {}) (shellLib.printEnvVars envVars)}
+        ${lib.optionalString (tools != []) (shellLib.printBins tools)}
+        echo
+      '';
+    };
+
     virtualisation = {
       graphics = lib.mkDefault false;
       diskImage = lib.mkDefault "$TMP_DISK";