Generate a constraint file for tests and sphinx

This solves a problem that when we pre-install packages for OSX, we need
to install the same version that is used in buildout profiles.

constraints-tests.txt

@@ -0,0 +1,53 @@
+Babel==2.16.0
+Jinja2==3.1.4
+MarkupSafe==2.1.5; python_version == '3.8'
+MarkupSafe==3.0.1; python_version > '3.8'
+Missing==5.0
+Products.BTreeFolder2==5.1
+Products.ZCatalog==7.1
+Pygments==2.18.0
+Record==4.1
+Sphinx==7.1.2; python_version == '3.8'
+Sphinx==7.4.7; python_version == '3.9'
+Sphinx==8.0.2; python_version > '3.9'
+alabaster==0.7.13; python_version == '3.8'
+alabaster==0.7.14; python_version == '3.9'
+alabaster==1.0.0; python_version > '3.9'
+certifi==2024.8.30
+charset-normalizer==3.4.0
+collective.recipe.template==2.2
+colorama==0.4.6
+docutils==0.20.1; python_version == '3.8'
+docutils==0.20.1; python_version == '3.9'
+docutils==0.21.2; python_version > '3.9'
+five.localsitemanager==4.0
+furo==2024.8.6
+idna==3.10
+imagesize==1.4.1
+importlib-metadata==8.5.0
+importlib-resources==6.4.0; python_version == '3.8'
+legacy-cgi==2.6.1
+mr.developer==2.0.2
+packaging==24.1
+plone.recipe.command==1.1
+requests==2.32.3
+snowballstemmer==2.2.0
+sphinx-basic-ng==1.0.0b2
+sphinxcontrib-applehelp==1.0.4; python_version == '3.8'
+sphinxcontrib-applehelp==2.0.0; python_version > '3.8'
+sphinxcontrib-devhelp==1.0.2; python_version == '3.8'
+sphinxcontrib-devhelp==2.0.0; python_version > '3.8'
+sphinxcontrib-htmlhelp==2.0.1; python_version == '3.8'
+sphinxcontrib-htmlhelp==2.1.0; python_version > '3.8'
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.3; python_version == '3.8'
+sphinxcontrib-qthelp==2.0.0; python_version > '3.8'
+sphinxcontrib-serializinghtml==1.1.5; python_version == '3.8'
+sphinxcontrib-serializinghtml==2.0.0; python_version > '3.8'
+tempstorage==6.0
+tomli==2.0.2
+urllib3==2.2.3
+z3c.checkversions==2.1
+zc.recipe.testrunner==3.1
+zipp==3.20.2
+zope.testrunner==6.5

tox.ini

@@ -26,6 +26,7 @@ deps =
     # must be installed separately, zc.buildout is incompatible with the
     # universal2 mode and cannot install them itself.
     universal2: -c {toxinidir}/constraints.txt
+    universal2: -c {toxinidir}/constraints-tests.txt
     universal2: zope.interface
     universal2: zope.security
     universal2: zope.container
@@ -60,6 +61,7 @@ deps =
     # must be installed separately, zc.buildout is incompatible with the
     # universal2 mode and cannot install them itself.
     universal2: -c {toxinidir}/constraints.txt
+    universal2: -c {toxinidir}/constraints-tests.txt
     universal2: zope.interface
     universal2: zope.security
     universal2: zope.container

util.py

@@ -16,9 +16,13 @@ def optionxform(self, value):
         return value
 
 
-def generate(in_, requirements_file, constraints_file):
+def generate(
+        in_: str,
+        requirements_file: Optional[str],
+        constraints_file: str):
     in_file = os.path.join(HERE, in_)
-    out_file_requirements = os.path.join(HERE, requirements_file)
+    if requirements_file:
+        out_file_requirements = os.path.join(HERE, requirements_file)
     out_file_constraints = os.path.join(HERE, constraints_file)
     parser = CaseSensitiveParser()
     parser.read(in_file)
@@ -44,10 +48,11 @@ def generate(in_, requirements_file, constraints_file):
         parser.items('versions'), None, requirements, constraints,
         zope_requirement)
 
-    with open(out_file_requirements, 'w') as fd:
-        fd.write(zope_requirement)
-        for req in sorted(requirements):
-            fd.write(req)
+    if requirements_file:
+        with open(out_file_requirements, 'w') as fd:
+            fd.write(zope_requirement)
+            for req in sorted(requirements):
+                fd.write(req)
     with open(out_file_constraints, 'w') as fcon:
         for con in sorted(constraints):
             fcon.write(con)
@@ -96,6 +101,7 @@ def _generate(
 
 def main():
     generate('versions-prod.cfg', 'requirements-full.txt', 'constraints.txt')
+    generate('versions.cfg', None, 'constraints-tests.txt')
 
 
 if __name__ == '__main__':