doc: hide Zhihu link from English docs

doc/source/conf.py

@@ -14,6 +14,8 @@
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
 
+from docutils import nodes
+
 
 # -- Project information -----------------------------------------------------
 
@@ -73,6 +75,8 @@
 json_url = "https://inference.readthedocs.io/en/latest/_static/switcher.json"
 if not version_match:
     version_match = 'en'
+if version_match == 'zh-cn':
+    tags.add("zh_cn")
 
 html_theme_options = {
     "show_toc_level": 2,
@@ -130,3 +134,23 @@
     ]
 
 html_favicon = "_static/favicon.svg"
+
+
+def _remove_non_zh_cn_nodes(app, doctree, docname):
+    current_language = getattr(app.config, "language", None)
+    is_zh_cn = version_match == "zh-cn" or current_language in {"zh_CN", "zh-cn"}
+    if is_zh_cn:
+        return
+
+    for node in list(
+        doctree.findall(
+            lambda n: isinstance(n, nodes.Element)
+            and "zh-cn-only" in n.get("classes", [])
+        )
+    ):
+        if node.parent is not None and node in node.parent:
+            node.parent.remove(node)
+
+
+def setup(app):
+    app.connect("doctree-resolved", _remove_non_zh_cn_nodes)

doc/source/index.rst

@@ -238,8 +238,9 @@ Getting Involved
 
             :fab:`twitter` Follow us on Twitter
 
-         .. grid-item-card::  
+         .. grid-item-card::
             :link: https://zhihu.com/org/xorbits
+            :class-item: zh-cn-only
 
             :fab:`zhihu` Read our blogs