pkg: Format README for PyPI, make wasi default

setup.py

@@ -7,19 +7,27 @@ from setuptools.command.install import install
 import subprocess
 from multiprocessing import cpu_count
 from pathlib import Path
+import re
 
-def version():
+def get_tag():
     res = subprocess.run(['git', 'describe', '--tags', '--match', 'v*'], capture_output=True, check=True, text=True)
-    version, _, _rest = res.stdout.strip()[1:].partition('-')
+    return res.stdout.strip()
+
+def get_version():
+    version, _, _rest = get_tag()[1:].partition('-')
     return version
 
-def readme():
-    with open('README.rst') as f:
-        return f.read()
+def format_readme_for_pypi():
+    tag = get_tag()
+    # Replace repo-relative image URLs with gitlab raw URLs. Gitlab and github render repo-relative URLs just fine, but
+    # PyPI doesn't.
+    return '\n'.join(
+            re.sub('^.. (figure|image):: (pics/.*)$', f'.. \\1:: https://gitlab.com/gerbolyze/gerbolyze/-/raw/{tag}/\\2', line.strip('\n'))
+            for line in Path('README.rst').read_text().splitlines())
 
 setup(
     name = 'gerbolyze',
-    version = version(),
+    version = get_version(),
     py_modules = ['gerbolyze'],
     package_dir = {'': 'gerbolyze'},
     entry_points = '''
@@ -31,7 +39,7 @@ setup(
         'self-intersections and holes, etc. fully automatically. It can vectorize raster images both by contour '
         'tracing and by grayscale dithering. All processing is done at the vector level without intermediate '
         'conversions to raster images accurately preserving the input.'),
-    long_description=readme(),
+    long_description=format_readme_for_pypi(),
     long_description_content_type='text/x-rst',
     project_urls={
         "Source Code": "https://git.jaseg.de/gerbolyze",
@@ -39,10 +47,7 @@ setup(
     },
     author = 'jaseg',
     author_email = 'gerbonara@jaseg.de',
-    install_requires = ['gerbonara', 'numpy', 'python-slugify', 'lxml', 'click'],
-    extras_require = {
-        'wasi': [f'svg-flatten-wasi[resvg-wasi] >= {version()}'],
-    },
+    install_requires = ['gerbonara', 'numpy', 'python-slugify', 'lxml', 'click', 'resvg-wasi', 'svg-flatten-wasi[resvg-wasi]'],
     license = 'AGPLv3',
     classifiers = [
         'Development Status :: 5 - Production/Stable',