Update nix expressions templates

Author: rszamszur

template/{% if nix %}flake.nix{% endif %}.jinja

@@ -44,7 +44,7 @@
         } // pkgs.lib.optionalAttrs pkgs.stdenv.isLinux {
           image = pkgs.callPackage ./image.nix {
             inherit pkgs;
-            {{project_name}} = pkgs.{{project_name}};
+            app = pkgs.{{project_name}};
           };
         };
 
@@ -136,4 +136,4 @@
           poetry = import ./shell.nix { inherit pkgs; };
         };
       }));
-}
+}

template/{% if nix %}image.nix{% endif %}.jinja

@@ -1,5 +1,5 @@
 { pkgs ? import <nixpkgs> { }
-, {{project_name}}
+, app
 , name ? "{{container_image_name}}"
 , tag ? "latest"
 }:
@@ -10,7 +10,7 @@ pkgs.dockerTools.buildImage {
   copyToRoot = pkgs.buildEnv {
     name = "image-root";
     paths = [
-      {{project_name}}
+      app
       pkgs.cacert
       pkgs.tzdata
     ];

template/{% if nix %}shell.nix{% endif %}.jinja

@@ -10,7 +10,6 @@ pkgs.mkShell {
   buildInputs = [
     pkgs.gnumake
     pkgs.curl
-    pkgs.git
     pythonPackage
     poetry
   ];
@@ -20,4 +19,4 @@ pkgs.mkShell {
     export POETRY_VIRTUALENVS_IN_PROJECT=true
     unset SOURCE_DATE_EPOCH
   '';
-}
+}