nix: add NIX_BUILD_SHELL

This is useful to avoid having nix-shell evaluate nixpkgs twice.
2020-02-07 21:35:51 +01:00 · 2020-02-07 21:35:51 +01:00 · e58ed5052b
commit e58ed5052b
parent 1305bc0290
1 changed files with 1 additions and 0 deletions
--- a/images/nix/default.nix
+++ b/images/nix/default.nix
@ -45,6 +45,7 @@ let
      Cmd = [ "/bin/bash" ];
      Env = [
        "ENV=/etc/profile.d/nix.sh"
+        "NIX_BUILD_SHELL=/bin/bash"
        "NIX_PATH=nixpkgs=${toString <nixpkgs>}"
        "PAGER=cat"
        "PATH=/usr/bin:/bin"