empty string.
* `amazon_s3_location` - Optionally, this can be set to control which
datacenter to use. For example, set it to "EU" to for Europe.
+* `amazon_s3_dupindex` - Normally, when `usedirs` is enabled,
+ "foo/index.html" is stored in S3 as a key named "foo/", and all links
+ between pages use that name. If you also needs links that include
+ "index.html" in their names to work, you can enable this option. Then
+ each index.html file will be stored in S3 *twice*, under both names. This
+ will use more disk and bandwidth, and is not recommended unless you really
+ need it for some reason.
Note that you should still set `destdir` in the setup file. The files that
are uploaded to Amazon S3 will still be written to the destdir, too.
The url can use the `foo.s3.amazonaws.com` domain name, or another domain
name that is a CNAME for it.
+The `hardlink` config file setting is not compatible with this plugin.
+
## data transfer notes
If you run 'ikiwiki -setup my.setup' to force a rebuild of your wiki, the
Copy and rename detection is not done, so if you copy or rename a large file,
it will be re-uploaded, rather than copied.
+
+## deleting a bucket
+
+You can use "ikiwiki -setup my.setup --delete-bucket" to delete anything
+that's in the configured bucket, and remove the bucket.