sane-scripts: package using resholve

this makes it easier to propagate paths in and such.
it does more sanity checking than e.g. `wrapProgram`,
plus it doesn't do any indirection -- rather, substitution.

pkgs/sane-scripts/default.nix

@@ -1,16 +1,64 @@
 { lib
 , pkgs
-, stdenv
+, resholve
 }:
 
-stdenv.mkDerivation {
-  name = "sane-scripts";
+# resholve documentation:
+# - nix: https://github.com/nixos/nixpkgs/blob/master/pkgs/development/misc/resholve/README.md
+# - generic: https://github.com/abathur/resholve
+resholve.mkDerivation {
+  pname = "sane-scripts";
+  version = "0.1.0";
 
   src = ./src;
 
-  # See: https://nixos.org/nixpkgs/manual/#ssec-stdenv-dependencies
-  # TODO: we aren't propagating all dependencies here (e.g. rmlint)
-  buildInputs = [ pkgs.rsync ];
+  solutions = {
+    default = {
+      scripts = [ "bin/*" ];
+      interpreter = "${pkgs.bash}/bin/bash";
+      inputs = with pkgs; [
+        coreutils
+        curl
+        findutils
+        gnugrep
+        ifuse
+        inotifyTools
+        oath-toolkit
+        openssh
+        rmlint
+        rsync
+        ssh-to-age
+        sops
+        sudo
+        which
+      ];
+      keep = {
+        # we write here: keep it
+        "/tmp/rmlint.sh" = true;
+      };
+      fake = {
+        external = [
+          # https://github.com/abathur/resholve/issues/29
+          "umount"
+          "sudo"
+
+          # this is actually internal; probably a better fix
+          "sane-mount-servo"
+        ];
+      };
+
+      # list of programs which *can* or *cannot* exec their arguments
+      execer = [
+        "cannot:${pkgs.ifuse}/bin/ifuse"
+        "cannot:${pkgs.oath-toolkit}/bin/oathtool"
+        "cannot:${pkgs.openssh}/bin/ssh-keygen"
+        "cannot:${pkgs.rmlint}/bin/rmlint"
+        "cannot:${pkgs.rsync}/bin/rsync"
+        "cannot:${pkgs.ssh-to-age}/bin/ssh-to-age"
+        "cannot:${pkgs.sops}/bin/sops"
+      ];
+    };
+  };
 
   installPhase = ''
     mkdir -p "$out"