downloads.rclone.org is about to be served from static listings
written by rclone index instead of by Caddy's file server. Released
versions of rclone selfupdate find the latest patch release of a minor
version by searching that listing for href="./vX.Y.Z/", as written by
Caddy. rclone's listings linked to "vX.Y.Z/" without the ./ so `rclone
selfupdate --version X.Y` would have failed with "could not find the
minor release" for every rclone already installed.
Caddy prefixes every link with ./ so that a name with a colon in its
first path segment is not read as an absolute URL with a scheme (RFC
3986 section 4.2). rclone was already safe from that as url.URL.String
adds the ./ but only to names which need it, so links to plain names
had no prefix.
This prefixes all the links with ./ as Caddy does. It changes the
output of serve http, serve webdav and the rc server as well as rclone
index, since they share the code. The links resolve identically, and
it keeps the listings consistent with each other.
Now every URL has the prefix, the caddy.json template no longer needs
to add it.
This includes a new directory listing template which was originally
from the Caddy project (used with permission and copyright attribution).
This is used whenever we serve directory listings so `rclone serve
http`, `rclone serve webdav` and `rclone rcd --rc-serve`
This also modifies the tests so they work with the original template which
is easier to debug.
Nick Craig-Wood