paperwork-backend: Move into its own file

This package is most likely only used by Paperwork and thus it makes
sense to put it next to the main expression of Paperwork.

No functional changes here, evaluating before this commit and afterwards
leads to the same derivation hash.

Signed-off-by: aszlig <aszlig@nix.build>

1 files changed, 39 insertions, 0 deletions

diff --git a/pkgs/applications/office/paperwork/backend.nix b/pkgs/applications/office/paperwork/backend.nix
new file mode 100644
index 00000000000..55752996464
--- /dev/null
+++ b/pkgs/applications/office/paperwork/backend.nix
@@ -0,0 +1,39 @@
+{ buildPythonPackage, lib, fetchFromGitHub
+
+, isPy3k, isPyPy
+
+, pyenchant, simplebayes, pillow, pycountry, whoosh, termcolor
+, python-Levenshtein, pyinsane2, pygobject3, pyocr, natsort
+
+, pkgs
+}:
+
+buildPythonPackage rec {
+  name = "paperwork-backend-${version}";
+  version = "1.2.1";
+
+  src = fetchFromGitHub {
+    owner = "openpaperwork";
+    repo = "paperwork-backend";
+    rev = version;
+    sha256 = "1lrawibm6jnykj1bkrl8196kcxrhndzp7r0brdrb4hs54gql7j5x";
+  };
+
+  # Python 2.x is not supported.
+  disabled = !isPy3k && !isPyPy;
+
+  preCheck = "\"$out/bin/paperwork-shell\" chkdeps paperwork_backend";
+
+  propagatedBuildInputs = [
+    pyenchant simplebayes pillow pycountry whoosh termcolor
+    python-Levenshtein pyinsane2 pygobject3 pyocr natsort
+    pkgs.poppler_gi pkgs.gtk3
+  ];
+
+  meta = {
+    description = "Backend part of Paperwork (Python API, no UI)";
+    homepage = https://openpaper.work/;
+    license = lib.licenses.gpl3Plus;
+    maintainers = [ lib.maintainers.aszlig ];
+  };
+}