Fix sources links

Hide translation links on dev version.

Author: m-aciek

Doc/conf.py

@@ -77,6 +77,8 @@
 # and replace the values accordingly.
 # See Doc/tools/extensions/patchlevel.py
 version, release = get_version_info()
+v = get_header_version_info()
+branch = "main" if v.releaselevel == "alpha" else f"{v.major}.{v.minor}"
 
 rst_epilog = f"""
 .. |python_version_literal| replace:: ``Python {version}``
@@ -297,6 +299,7 @@
     "repository_url": repository_url or None,
     "pr_id": os.getenv("READTHEDOCS_VERSION"),
     "enable_analytics": os.getenv("PYTHON_DOCS_ENABLE_ANALYTICS"),
+    "source_branch": branch,
 }
 
 # This 'Last updated on:' timestamp is inserted at the bottom of every page.
@@ -560,9 +563,6 @@
 # Options for sphinx.ext.extlinks
 # -------------------------------
 
-v = get_header_version_info()
-branch = "main" if v.releaselevel == "alpha" else f"{v.major}.{v.minor}"
-
 # This config is a dictionary of external sites,
 # mapping unique short aliases to a base URL and a prefix.
 # https://www.sphinx-doc.org/en/master/usage/extensions/extlinks.html

Doc/tools/templates/customsourcelink.html

@@ -19,13 +19,13 @@ <h3>{{ _('This page') }}</h3>
       <li><a href="{{ pathto('bugs') }}">{% trans %}Report a bug{% endtrans %}</a></li>
       <li><a class="improvepage" href="{{ pathto('improve-page-nojs') }}">{% trans %}Improve this page{% endtrans %}</a></li>
       <li>
-        <a href="https://github.com/python/cpython/blob/main/Doc/{{ pagename }}.rst?plain=1"
+        <a href="https://github.com/python/cpython/blob/{{ source_branch }}/Doc/{{ pagename }}.rst?plain=1"
             rel="nofollow">{{ _('Show source') }}
         </a>
       </li>
-      {% if language != "en" %}
+      {% if language != "en" and source_branch != "main" %}
       <li>
-        <a href="https://github.com/python/python-docs-{{ language }}/blob/{{ version }}/{{ pagename }}.po?plain=1"
+        <a href="https://github.com/python/python-docs-{{ language | replace('_', '-') | lower }}/blob/{{ source_branch }}/{{ pagename }}.po?plain=1"
            rel="nofollow">{{ _('Show translation source') }}</a>
       </li>
       {% endif %}