nightly: Redirect nightly requests to CloudFront

Redirect requests for nightly tarballs (*.tar.gz and *.tar.bz2)
and the latest_snapshot.txt for nightlies (which is generated
as part of the nightly tarball build process) to CloudFront,
so that scripts pulling from www.open-mpi.org don't break.

Signed-off-by: Brian Barrett <[email protected]>

Former-commit-id: 28d1f9d

Author: bwbarrett

.htaccess

@@ -34,4 +34,10 @@ RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]
 ## These probably aren't necessary any more
 RewriteRule ^MailArchives/(.*)$  /community/lists/$1 [L,R=301]
 RewriteRule ^(.+)(\.php|\.html)/$  /$1$2 [R=301,L]
+
+# redirect requests for nightly tarballs / nightly latest_snapshot.txt requests
+# to download.open-mpi.org.
+RewriteRule software/(.*)/nightly/(.*)/(latest_snapshot\.txt|.*\.tar\.gz|.*\.tar\.bz2) https://download.open-mpi.org/nightly/$1/$2/$3 [L,R=302]
+RewriteRule nightly/(.*)/(latest_snapshot\.txt|.*\.tar\.gz|.*\.tar\.bz2) https://download.open-mpi.org/nightly/open-mpi/$1/$2 [L,R=302]
+
 </IfModule>