ci: fix Travis CI builds

* run the ./build after setting the NIX_PATH. Previously the images were always generate with the system channel. Oops! * pin the outer shell version to nixos-19.09. skopeo broke in unstable. also we don't need to force the system here, technically this could run on macOS.
2020-02-09 16:23:27 +01:00
parent e58ed5052b
commit 6597ff1349
3 changed files with 15 additions and 10 deletions
--- a/shell.nix
+++ b/shell.nix
@@ -1,4 +1,8 @@
-with import ./pkgs.nix;
+let
+  nixpkgs = builtins.fetchTarball "channel:nixos-19.09";
+  pkgs = import nixpkgs { config = {}; overlays = []; };
+in
+with pkgs;
 mkShell {
  buildInputs = [
    jq