Merge pull request #373 from zopefoundation/dataflake/dynamic_readme

Dynamic readme value generation

Author: dataflake

pyproject.toml

@@ -26,6 +26,7 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: OS Independent",
 ]
+dynamic = ["readme"]
 requires-python = ">=3.10"
 authors = [
     {name = "Zope Foundation and contributors",email = "[email protected]"},

src/zope/meta/setup_to_pyproject.py

@@ -145,10 +145,27 @@ def setup_args_to_toml_dict(setup_py_path, setup_kwargs):
             new_classifiers.append(classifier)
     p_data['classifiers'] = new_classifiers
 
-    if (setup_py_path.parent / 'README.rst').exists():
-        p_data['readme'] = 'README.rst'
-    elif (setup_py_path.parent / 'README.txt').exists():
-        p_data['readme'] = 'README.txt'
+    readme = None
+    for readme_name in ('README.rst', 'README.txt'):
+        if (setup_py_path.parent / readme_name).exists():
+            readme = readme_name
+            break
+
+    changelog = None
+    for changelog_name in ('CHANGES.rst', 'CHANGES.txt'):
+        if (setup_py_path.parent / changelog_name).exists():
+            changelog = changelog_name
+            break
+
+    if readme and not changelog:
+        p_data['readme'] = readme
+    elif readme and changelog:
+        readme_spec = tomlkit.inline_table()
+        readme_spec.update({'file': [readme, changelog]})
+        toml_dict['tool'] = {
+            'setuptools': {'dynamic': {'readme': readme_spec}}}
+        dynamic_attributes = p_data.setdefault('dynamic', [])
+        dynamic_attributes.append('readme')
     else:
         print('XXX WARNING XXX: This package has no README.rst or README.txt!')
 
@@ -298,8 +315,9 @@ def recursive_merge(dict1, dict2):
                 # We will not overwrite existing values!
                 if key not in dict1:
                     dict1[key] = value
+        return dict1
 
-    recursive_merge(p_toml, toml_dict)
+    p_toml = recursive_merge(p_toml, toml_dict)
 
     # Format long lists
     p_toml['project']['classifiers'].multiline(True)