Enable https redirect
Use .htaccess to enable http -> https redirect.
This file was adopted from the calcite project.
diff --git a/publish.sh b/publish.sh
index fe8cc8b..6a7fe33 100755
--- a/publish.sh
+++ b/publish.sh
@@ -28,7 +28,7 @@
git pull --rebase
rm -rf content
mkdir content
-mv site/_site/* content
+mv site/_site/* site/_site/.htaccess content
git add content
echo "Publishing changes from master branch $COMMIT_HASH"
git commit -a -m "Publishing from $COMMIT_HASH"
diff --git a/site/.htaccess b/site/.htaccess
new file mode 100644
index 0000000..4d60da8
--- /dev/null
+++ b/site/.htaccess
@@ -0,0 +1,32 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to you under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+RewriteEngine On
+
+# This is a 301 (permanent) redirect from HTTP to HTTPS.
+
+# The next rule applies conditionally:
+# * the host is "crail.apache.org",
+# * the host comparison is case insensitive (NC),
+# * HTTPS is not used.
+RewriteCond %{HTTP_HOST} ^crail\.apache\.org [NC]
+RewriteCond %{HTTPS} !on
+
+# Rewrite the URL as follows:
+# * Redirect (R) permanently (301) to https://crail.apache.org/,
+# * Stop processing more rules (L).
+RewriteRule ^(.*)$ https://crail.apache.org/$1 [L,R=301]
+
+# End .htaccess
diff --git a/site/_config.yml b/site/_config.yml
index 77a35bf..6da86fe 100644
--- a/site/_config.yml
+++ b/site/_config.yml
@@ -58,3 +58,5 @@
#plugins:
# - regex_filter
+include: ['.htaccess']
+
