lesspipe: allow configuring package

modules/programs/lesspipe.nix

@@ -2,18 +2,24 @@
 
 with lib;
 
-{
+let
+
+  cfg = config.programs.lesspipe;
+
+in {
   meta.maintainers = [ maintainers.rycee ];
 
   options = {
     programs.lesspipe = {
       enable = mkEnableOption "lesspipe preprocessor for less";
+
+      package = mkPackageOption pkgs "lesspipe" { };
     };
   };
 
-  config = mkIf config.programs.lesspipe.enable {
+  config = mkIf cfg.enable {
     home.sessionVariables = {
-      LESSOPEN = "|${pkgs.lesspipe}/bin/lesspipe.sh %s";
+      LESSOPEN = "|${cfg.package}/bin/lesspipe.sh %s";
     };
   };
 }

tests/default.nix

@@ -101,6 +101,7 @@ in import nmtSrc {
     ./modules/programs/kubecolor
     ./modules/programs/ledger
     ./modules/programs/less
+    ./modules/programs/lesspipe
     ./modules/programs/lf
     ./modules/programs/lsd
     ./modules/programs/lieer

tests/modules/programs/lesspipe/default.nix

@@ -0,0 +1 @@
+{ lesspipe = ./lesspipe.nix; }

tests/modules/programs/lesspipe/lesspipe.nix

@@ -0,0 +1,10 @@
+{
+  programs.lesspipe.enable = true;
+
+  test.stubs.lesspipe = { };
+
+  nmt.script = ''
+    assertFileContains home-path/etc/profile.d/hm-session-vars.sh \
+      'export LESSOPEN="|@lesspipe@/bin/lesspipe.sh %s"'
+  '';
+}