chore: Update setup.py to allow installing from a source bundle, and …

…only build the sdist package.

pyproject.toml

@@ -8,7 +8,7 @@ tag_format = "v{version}"
 version_variables = [
  "glowprom/__init__.py:__version__"
 ]
-build_command = "python3 setup.py sdist bdist_wheel"
+build_command = "python3 setup.py sdist"
 
 [semantic_release.branches.main]
 match = "(main|master)"

setup.py

@@ -14,14 +14,22 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
+import os
+
 import setuptools
 
-from glowprom import __version__
+try:
+ from glowprom import __version__
+except ImportError:
+ import re
+
+ with open('glowprom.egg-info/PKG-INFO') as f:
+ __version__ = re.search("^Version: (.*)$", f.read(), re.MULTILINE).group(1)
 
 with open("README.md", "r") as fh:
  long_description = fh.read()
 
-with open('requirements.txt') as f:
+with open('requirements.txt' if os.path.exists('requirements.txt') else 'glowprom.egg-info/requires.txt') as f:
  requirements = f.read().splitlines()
 
 setuptools.setup(