Here I copied the blog post announcing the library, because it describes
it very well, and not everyone who discovers the library will know where
to look for such a comprehensive description.
http://chrisdone.com/posts/path-package
I've made two edits to that post to reflect new things:
1. On line 123 there is a mention of ‘fromAbsDir’ and other similar
functions.
2. On line 363 I've put a link to my ‘path-io’ package that provides
well-typed interface to ‘directory’ and ‘temporary’. I've written the
package for my personal needs, because I was tired of the endless
conversion and I wanted things like recursive copying of
directories. When I published it, someone opened an issue asking to
add some functions from Stack's ‘Path.IO’ — that's what I'm going to
do. I expect it will be able to replace ‘Path.IO’ in Stack soon. I've
talked to Stack maintainers and they like the package and have
nothing against the switch.