Distribute PyInstaller hook

This uses a feature introduced in PyInstaller 4.0 to register hooks as
entry points and automatically discover them whenever a module is used.

dosagelib/__pyinstaller/__init__.py

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: MIT
+# Copyright (C) 2020 Tobias Gruetzmacher
+import os
+
+def get_hook_dirs():
+    return [os.path.dirname(__file__)]

dosagelib/__pyinstaller/hook-dosagelib.py

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: MIT
-# Copyright (C) 2004-2008 Tristan Seligmann and Jonathan Jacobs
-# Copyright (C) 2012-2014 Bastian Kleineidam
-# Copyright (C) 2015-2017 Tobias Gruetzmacher
+# Copyright (C) 2016-2020 Tobias Gruetzmacher
 from PyInstaller.utils.hooks import collect_submodules, copy_metadata
 
 hiddenimports = collect_submodules('dosagelib.plugins')

setup.cfg

@@ -46,6 +46,8 @@ setup_requires =
 [options.entry_points]
 console_scripts =
     dosage = dosagelib.cmd:main
+pyinstaller40 =
+    hook-dirs = dosagelib.__pyinstaller:get_hook_dirs
 
 [options.extras_require]
 bash =