build: add setup.py

setup.py

@@ -0,0 +1,56 @@
+#! /usr/bin/env python3
+
+import os
+import subprocess
+
+from setuptools.command.sdist import sdist
+from setuptools import setup, find_packages
+
+
+class eo_sdist(sdist):
+    def run(self):
+        if os.path.exists('VERSION'):
+            os.remove('VERSION')
+        version = get_version()
+        version_file = open('VERSION', 'w')
+        version_file.write(version)
+        version_file.close()
+        sdist.run(self)
+        if os.path.exists('VERSION'):
+            os.remove('VERSION')
+
+
+def get_version():
+    if os.path.exists('VERSION'):
+        with open('VERSION', 'r') as v:
+            return v.read()
+    if os.path.exists('.git'):
+        p = subprocess.Popen(
+            ['git', 'describe', '--dirty=.dirty', '--match=v*'],
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+        )
+        result = p.communicate()[0]
+        if p.returncode == 0:
+            result = result.decode('ascii').strip()[1:]  # strip spaces/newlines and initial v
+            if '-' in result:  # not a tagged version
+                real_number, commit_count, commit_hash = result.split('-', 2)
+                version = '%s.post%s+%s' % (real_number, commit_count, commit_hash)
+            else:
+                version = result
+            return version
+        else:
+            return '0.0.post%s' % len(subprocess.check_output(['git', 'rev-list', 'HEAD']).splitlines())
+    return '0.0'
+
+
+setup(
+    name='pfwb-archives-proxy',
+    version=get_version(),
+    author='Entr’ouvert',
+    author_email='info@entrouvert.com',
+    packages=find_packages(),
+    cmdclass={
+        'sdist': eo_sdist,
+    },
+)