Replace Netlify with Read the Docs build previews (python#103843)

Co-authored-by: Oleg Iarygin <dralife@yandex.ru>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>

.github/workflows/documentation-links.yml

@@ -0,0 +1,27 @@
+name: Read the Docs PR preview
+# Automatically edits a pull request's descriptions with a link
+# to the documentation's preview on Read the Docs.
+
+on:
+ pull_request_target:
+ types:
+ - opened
+ paths:
+ - 'Doc/**'
+ - '.github/workflows/doc.yml'
+
+permissions:
+ pull-requests: write
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ documentation-links:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: readthedocs/actions/preview@v1
+ with:
+ project-slug: "cpython-previews"
+ single-version: "true"

.readthedocs.yml

@@ -0,0 +1,18 @@
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+# Project page: https://readthedocs.org/projects/cpython-previews/
+
+version: 2
+
+sphinx:
+ configuration: Doc/conf.py
+
+build:
+ os: ubuntu-22.04
+ tools:
+ python: "3"
+
+ commands:
+ - make -C Doc venv html
+ - mkdir _readthedocs
+ - mv Doc/build/html _readthedocs/html

Doc/conf.py

@@ -114,12 +114,13 @@
 # Short title used e.g. for <title> HTML tags.
 html_short_title = '%s Documentation' % release
 
-# Deployment preview information, from Netlify
-# (See netlify.toml and https://docs.netlify.com/configure-builds/environment-variables/#git-metadata)
+# Deployment preview information
+# (See .readthedocs.yml and https://docs.readthedocs.io/en/stable/reference/environment-variables.html)
+repository_url = os.getenv("READTHEDOCS_GIT_CLONE_URL")
 html_context = {
- "is_deployment_preview": os.getenv("IS_DEPLOYMENT_PREVIEW"),
- "repository_url": os.getenv("REPOSITORY_URL"),
- "pr_id": os.getenv("REVIEW_ID")
+ "is_deployment_preview": os.getenv("READTHEDOCS_VERSION_TYPE") == "external",
+ "repository_url": repository_url.removesuffix(".git") if repository_url else None,
+ "pr_id": os.getenv("READTHEDOCS_VERSION")
 }
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,

Doc/tools/templates/layout.html

@@ -11,11 +11,6 @@
 
 {%- if is_deployment_preview %}
 <div id="deployment-preview-warning" style="padding: .5em; text-align: center; background-color: #fff2ba; color: #6a580e;">
- <div style="float: right; margin-top: -10px; margin-left: 10px;">
- <a href="https://www.netlify.com">
- <img src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg" alt="Deploys by Netlify" />
- </a>
- </div>
  {% trans %}This is a deploy preview created from a <a href="{{ repository_url }}/pull/{{ pr_id }}">pull request</a>.
  For authoritative documentation, see the {% endtrans %}
  <a href="https://docs.python.org/3/{{ pagename }}{{ file_suffix }}">{% trans %} the current stable release{% endtrans %}</a>.