rust pkg should follow freedesktop base directory specification under appropriate platforms

[mstewartgallus]

Currently rust pkg creates a dot directory in the home directory under certain platforms. This really bothers me, and I think it'd be nice if once of the options listed under here were followed instead http://freedesktop.org/wiki/Specifications/basedir-spec

I'm really not sure which option listed there is best but I feel any of them would be better than the current approach.

[thestinger]

it would go in $XDG_DATA_HOME

[metajack]

I assume you mean $XDG_DATA_HOME which is by default .local/share.

I'm pretty sure other tools ignore this guideline and use directories directly under $HOME. For example, Maven uses ~/.m2 and Ruby gems are in ~/.gems.

[z0w0]

I'm going to disagree here. The directory is only created under the current directory when working in a workspace, it's no different to node_modules or .git. The only other way would be to copy the entire workspace over to a unique directory in $HOME which is ugly.

[catamorphism]

In incoming, rustpkg no longer creates a .rustpkg directory anywhere (though one of the help messages still mentions one; I should clean that up.)

[catamorphism]

BTW, https://github.com/mozilla/rust/blob/master/doc/rustpkg.md describes the expected directory structure for a workspace.