changelog components redirector .htaccess file

.htaccess

# Boilerplate
Options +Indexes
RewriteEngine on

## Sample redirect rules for every section.
#
# This file assumes that the changelogs are exposed at /changelogs/pool/COMPONENT/..., like
# on the Debian and Ubuntu servers, and that changelogs is a subdirectory of the document root.
#
# The first condition prevents infinite redirects (alternative: RewriteCond $1 !^main$)
# The second condition checks if the requested document exists in another component
# The redirect rule finally performs the redirect to the other commponent

RewriteCond "%{REQUEST_FILENAME}" !-f
RewriteCond "%{DOCUMENT_ROOT}/changelogs/pool/main/$2" -f
RewriteRule "pool/(.*?)/(.*)" "/changelogs/pool/main/$2" [R=301,L]

RewriteCond "%{REQUEST_FILENAME}" !-f
RewriteCond "%{DOCUMENT_ROOT}/changelogs/pool/restricted/$2" -f
RewriteRule "pool/(.*?)/(.*)" "/changelogs/pool/restricted/$2" [R=301,L]

RewriteCond "%{REQUEST_FILENAME}" !-f
RewriteCond "%{DOCUMENT_ROOT}/changelogs/pool/universe/$2" -f
RewriteRule "pool/(.*?)/(.*)" "/changelogs/pool/universe/$2" [R=301,L]

RewriteCond "%{REQUEST_FILENAME}" !-f
RewriteCond "%{DOCUMENT_ROOT}/changelogs/pool/multiverse/$2" -f
RewriteRule "pool/(.*?)/(.*)" "/changelogs/pool/multiverse/$2" [R=301,L]

You might want to handle ? parameters in the RewriteRule by adding(\?.*)? to the source and $3 to the target, so these are preserved.

Oh, it actually seems to just work, even without special handling :)

Thanks Julian. This was deployed today on changelogs.ubuntu.com!