Add analytics_anonymize_ip option to theme (#889)

* Add analytics_anonymize_ip option to theme

* Fix typo and use tobool filter

Co-Authored-By: Jesse Tan <jessetan@users.noreply.github.com>

* Simplify analytics_anonymize_ip description

* Update changelog.rst

Co-authored-by: Jesse Tan <jessetan@users.noreply.github.com>
Co-authored-by: Aaron Carlisle <carlisle.b3d@gmail.com>

docs/changelog.rst

@@ -5,6 +5,11 @@ Changelog
 master
 ======
 
+New Features
+------------
+
+* New theme option to enable anonymous ip addresses when using Google Analytics (#889)
+
 v0.5.0
 ======
 

docs/configuring.rst

@@ -15,6 +15,7 @@ For example:
     html_theme_options = {
         'canonical_url': '',
         'analytics_id': 'UA-XXXXXXX-1',  #  Provided by Google in your dashboard
+        'analytics_anonymize_ip': False,
         'logo_only': False,
         'display_version': True,
         'prev_next_buttons_location': 'bottom',
@@ -101,6 +102,13 @@ Miscellaneous options
     If specified, Google Analytics' javascript is included in your pages.
     Set the value to the ID provided to you by google (like ``UA-XXXXXXX``).
 
+.. confval:: analytics_anonymize_ip
+
+   :type: boolean
+   :default: ``False``
+
+   Anonymize visitor IP addresses in Google Analytics.
+
 .. confval:: canonical_url
 
     :type: URL

sphinx_rtd_theme/layout.html

@@ -229,6 +229,9 @@
     })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
 
     ga('create', '{{ theme_analytics_id }}', 'auto');
+    {% if theme_analytics_anonymize_ip|tobool %}
+    ga('set', 'anonymizeIp', true);
+    {% endif %}
     ga('send', 'pageview');
     </script>
 

sphinx_rtd_theme/theme.conf

@@ -6,6 +6,7 @@ pygments_style = default
 [options]
 canonical_url =
 analytics_id =
+analytics_anonymize_ip = False
 collapse_navigation = True
 sticky_navigation = True
 navigation_depth = 4
@@ -15,4 +16,4 @@ logo_only =
 display_version = True
 prev_next_buttons_location = bottom
 style_external_links = False
-style_nav_header_background =
+style_nav_header_background =