Missing linux/unix/osx support

[Byron]

This issue is just meant to be a place to track progress on implementing the platform specific requirements to make cargo-script work on non-windows platforms.

Even though I have no intention on implementing it myself, I would like to try cargo-script when it runs on OSX as well.

[DanielKeep]

Currently, the other thing that really needs modification is platform::inner::get_cache_dir_for. I haven't checked to see exactly where Cargo puts things, but presumably it's something like $HOME/.cargo.

The major reason I haven't is that I can't be bothered to set up a linux VM for testing right now.

There is one thing that does need some work: how to invoke cargo script from a hashbang. My vague recollection is that #!/usr/bin/env cargo script will be invoked as /usr/bin/env "cargo script" "$0", so that won't work. Annoyingly, cargo passes the complete command-line to sub-commands, so what cargo-script gets for cargo script X is cargo-script script X, which means the hashbang would have to add a script argument and blech.

So a *nix version will probably want some kind of wrapper around cargo script, too.

[withoutboats]

cargo does put things in ~/.cargo

[Byron]

Awesome, thanks !

[DanielKeep]

@Byron: Thanks should be directed to @Ryman who implemented it. :)