From f3b08b395a8dbc528a8a5a21f90a1cacd13f925b Mon Sep 17 00:00:00 2001
From: Jinzhe Zeng <jinzhe.zeng@rutgers.edu>
Date: Thu, 19 Aug 2021 20:13:25 -0400
Subject: [PATCH] add sphinx plugins `viewcode` and `intersphinx` (#997)

---
 doc/conf.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/conf.py b/doc/conf.py
index 9d84763d40..0dfac83f24 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -156,6 +156,8 @@ def setup(app):
     "sphinx_rtd_theme",
     'myst_parser',
     'sphinx.ext.autosummary',
+    'sphinx.ext.viewcode',
+    'sphinx.ext.intersphinx',
     'breathe',
     'exhale'
 ]
@@ -198,6 +200,14 @@ def setup(app):
 # This pattern also affects html_static_path and html_extra_path.
 exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
 
+intersphinx_mapping = {
+    "numpy": ("https://docs.scipy.org/doc/numpy/", None),
+    "python": ("https://docs.python.org/", None),
+    "tensorflow": (
+        "https://www.tensorflow.org/api_docs/python",
+        "https://github.com/mr-ubik/tensorflow-intersphinx/raw/master/tf2_py_objects.inv",
+    ),
+}
 
 # -- Options for HTML output -------------------------------------------------