Would it be possible to add an option to only generate the index files
for the html output and not place the markdown files in the wiki source?
+> Or better still, add a mechanism for ikiwiki to hold transient source
+> pages in memory and render them as if they existed, without actually
+> writing them out, as [[JoeRayhawk]] suggests below? I think
+> add_autofile would be the way to do this. --[[smcv]]
+
The reason being that I have a lot of directories which need to be autoindexed,
but I would prefer if the index files didn't clutter up my git repository.