uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/pijuice/default.nix

@@ -0,0 +1,65 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, pythonOlder
+, smbus-cffi
+, urwid
+}:
+
+buildPythonPackage rec {
+  pname = "pijuice";
+  version = "1.7";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "PiSupply";
+    repo = "PiJuice";
+    # Latest commit that fixes using the library against python 3.9 by renaming
+    # isAlive() to is_alive(). The former function was removed in python 3.9.
+    rev = "e2dca1f8dcfa12e009952a882c0674a545d193d6";
+    sha256 = "07Jr7RSjqI8j0tT0MNAjrN1sjF1+mI+V0vtKInvtxj8=";
+  };
+
+  patches = [
+    # The pijuice_cli.cli file doesn't have a shebang as the first line of the
+    # script. Without it, the pythonWrapPrograms hook will not wrap the program.
+    # Add a python shebang here so that the the hook is triggered.
+    ./patch-shebang.diff
+  ];
+
+  PIJUICE_BUILD_BASE = 1;
+  PIJUICE_VERSION = version;
+
+  preBuild = ''
+    cd Software/Source
+  '';
+
+  propagatedBuildInputs = [ smbus-cffi urwid ];
+
+  # Remove the following files from the package:
+  #
+  # pijuice_cli - A precompiled ELF binary that is a setuid wrapper for calling
+  #               pijuice_cli.py
+  #
+  # pijuiceboot - a precompiled ELF binary for flashing firmware. Not needed for
+  #               the python library.
+  #
+  # pijuice_sys.py - A program that acts as a system daemon for monitoring the
+  #                  pijuice.
+  preFixup = ''
+    rm $out/bin/pijuice_cli
+    rm $out/bin/pijuice_sys.py
+    rm $out/bin/pijuiceboot
+    mv $out/bin/pijuice_cli.py $out/bin/pijuice_cli
+  '';
+
+  # no tests
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Library and resources for PiJuice HAT for Raspberry Pi";
+    homepage = "https://github.com/PiSupply/PiJuice";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ hexagonal-sun ];
+  };
+}