Add setup.py, use pkg_resources for loading data files

Also converted piper.py from a standalone module into a package, so that
we have somewhere for setuptools to put the data files and load them
from.

Signed-off-by: Dan Callaghan <dcallagh@redhat.com>

.gitignore

@@ -0,0 +1,2 @@
+/piper.egg-info
+/build

piper/__init__.py

@@ -2,8 +2,8 @@
 # vim: set expandtab shiftwidth=4 tabstop=4
 
 from ratbagd import *
-import sysconfig
 import os
+import pkg_resources
 
 import gi
 gi.require_version('Gtk', '3.0')
@@ -70,7 +70,7 @@ class Piper(Gtk.Window):
     def __init__(self):
         Gtk.Window.__init__(self, title="Piper")
         main_window = Gtk.Builder()
-        main_window.add_from_file("piper.ui")
+        main_window.add_from_file(pkg_resources.resource_filename("piper", "piper.ui"))
         self._builder = main_window;
         self._signal_ids = []
         self._initialized = False
@@ -90,7 +90,7 @@ class Piper(Gtk.Window):
         # load the right image
         svg = self._ratbag_device.svg_path
         if not os.path.isfile(svg):
-            svg = "404.svg"
+            svg = pkg_resources.resource_filename("piper", "404.svg")
         img = main_window.get_object("piper-image-device")
         img.set_from_file(svg)
 

setup.py

@@ -0,0 +1,30 @@
+from setuptools import setup
+
+setup(
+    name='piper',
+    description='Piper is a GUI interface to ratbagd, the system daemon for configurable mice',
+    version='0.0.1',
+    url='https://github.com/libratbag/piper',
+    license='License :: OSI Approved :: GNU General Public License v2 (GPLv2)',
+    classifiers=[
+        'Development Status :: 3 - Alpha',
+        'Topic :: Utilities',
+        'Programming Language :: Python :: 3',
+    ],
+    keywords='mouse configuration',
+    packages=['piper'],
+    entry_points={
+        'console_scripts': [
+            'piper=piper:main',
+        ],
+    },
+    # We require the ratgbagd python bindings but they're currently
+    # installed by autotools and that setuptools unable to find the
+    # dependencies. Once they're installed by setuptools too we can add
+    # the real dependency here, for now you'll need to rely on your
+    # packaging system.
+    #
+    # install_requires=['ratbagd'],
+    package_data={'piper': ['piper.ui', '404.svg']},
+    zip_safe=False,
+)