proxies-redirects: Add rewrite for cgit on src.fp.o (#7736)

playbooks/include/proxies-redirects.yml

@@ -17,6 +17,15 @@
   - role: packages3/bugz.fp.o
     website: bugz.fedoraproject.org
 
+  # A special rewrite for cgit
+  - role: httpd/redirect
+    shortname: cgit
+    website: src.fedoraproject.org
+    # Staging-only for now, due to F30 final freeze
+    # XXX deploy to production after freeze ends
+    when: env == "staging"
+    tags:
+    - cgit
 
   # Various app redirects
   - role: httpd/redirect

roles/httpd/redirect/templates/redirect.cgit.conf

@@ -0,0 +1,19 @@
+RewriteEngine on
+
+# commit ID
+RewriteCond %{QUERY_STRING} (^|&)id=([^&]+)($|&)
+RewriteRule ^/cgit/([-._+a-zA-Z0-9/]+)\.git/commit/?$ /$1/c/%2? [R,L]
+
+# plain file at commit ID
+RewriteCond %{QUERY_STRING} (^|&)id=([^&]+)($|&)
+RewriteRule ^/cgit/([-._+a-zA-Z0-9/]+)\.git/plain/(.*) /$1/raw/%2/f/$2? [R,L]
+
+# plain file at ref
+RewriteCond %{QUERY_STRING} (^|&)h=([^&]+)($|&)
+RewriteRule ^/cgit/([-._+a-zA-Z0-9/]+)\.git/plain/(.*) /$1/raw/%2/f/$2? [R,L]
+
+# plain file at HEAD
+RewriteRule ^/cgit/([-._+a-zA-Z0-9/]+)\.git/plain/(.*) /$1/raw/HEAD/f/$2? [R,L]
+
+# main project page
+RewriteRule ^/cgit/([-._+a-zA-Z0-9/]+)\.git/?$ /$1? [R,L]