only build changes.rst when parsing changelog

tooling/src/hypothesistooling/projects/hypothesispython.py

@@ -65,19 +65,21 @@ def has_source_changes():
     return tools.has_changes([PYTHON_SRC])
 
 
-def build_docs(builder="html"):
+def build_docs(*, builder="html", only=[]):
     # See https://www.sphinx-doc.org/en/stable/man/sphinx-build.html
     # (unfortunately most options only have the short flag version)
     tools.scripts.pip_tool(
-        "sphinx-build",
-        "-W",
-        "--keep-going",
-        "-T",
-        "-E",
-        "-b",
-        builder,
-        "docs",
-        "docs/_build/" + builder,
+        *[
+            "sphinx-build",
+            "-W",
+            "-T",
+            "-E",
+            "-b",
+            builder,
+            "docs",
+            "docs/_build/" + builder,
+            *only,
+        ],
         cwd=HYPOTHESIS_PYTHON,
     )
 
@@ -189,7 +191,7 @@ def upload_distribution():
 
     # Construct plain-text + markdown version of this changelog entry,
     # with link to canonical source.
-    build_docs(builder="text")
+    build_docs(builder="text", only=["docs/changes.rst"])
     textfile = os.path.join(HYPOTHESIS_PYTHON, "docs", "_build", "text", "changes.txt")
     with open(textfile, encoding="utf-8") as f:
         lines = f.readlines()