setup.py

import glob
import os
import subprocess

from setuptools import setup
from distutils.log import info
import distutils.command.install_data

with open("src/SimplePwgen/VERSION", "w") as f:
	try:
		version = (subprocess.check_output(["dpkg-parsechangelog",
									   "--show-field", "Version"])).decode().strip("\n")
	except:
		raise RuntimeError('No version found in debian/changelog')
	
	if '~' in version:
		version = version.split('~')[0]
	f.write("%s" % version)

gschema_dir_suffix = 'share/glib-2.0/schemas'

class install_data(distutils.command.install_data.install_data):
	def run(self):
		# Python 3 'super' call.
		super().run()
		
		# Compile '*.gschema.xml' to update or create 'gschemas.compiled'.
		info("compiling gsettings schemas")
		# Use 'self.install_dir' to build the path, so that it works
		# for both global and local '--user' installs.
		gschema_dir = os.path.join(self.install_dir, gschema_dir_suffix)
		self.spawn(["glib-compile-schemas", gschema_dir])

data_files = [('share/applications', glob.glob("data/applications/*.desktop")),
			('share/icons/hicolor/scalable/apps', glob.glob("data/icons/*")),
			(gschema_dir_suffix, glob.glob("data/schema/*.xml"))
			]

def create_mo_files():
	po_files = glob.glob("po/*.po")
	prefix = 'simple-pwgen'
	
	for po_file in po_files:
		po_name = os.path.splitext(os.path.split(po_file)[1])[0]
		replace_txt = "%s-" % prefix
		lang = po_name.replace(replace_txt, '')
		os.makedirs("data/locale/%s" % lang, exist_ok=True)
		mo = "data/locale/%s/%s.mo" % (lang, prefix)
		subprocess.run(['msgfmt', '-o', str(mo), po_file], check=True)
		
		mo_file = map(lambda i: ('share/locale/%s/LC_MESSAGES' % lang, [i+'/%s.mo' % prefix]), glob.glob('data/locale/%s' % lang))
		data_files.extend(mo_file)

create_mo_files()

setup(data_files=data_files,
			cmdclass = {'install_data': install_data}
)