workspaces: All building all members of the workspace

[sdroege]

Something like "cargo build" in the root of the workspace would seem useful, which would then build all members of the workspace. Similar to how "cargo clean" currently cleans the workspace.

[steveklabnik]

This should be --all, in my understanding

[alexcrichton]

Yeah we've got cargo test --all now on Nightly so it should be easy enough to add cargo build --all!

[sdroege]

Basically something similar to 62c0497 then, just doing the same for build? Are there any other commands that could use some --all'ification?
I might take a look into that later, would be nice to replace my Makefile doing just that with a cargo command

[alexcrichton]

Now that all of the support was landed with cargo test --all it may just involve copying these lines into build.rs. We could add cargo doc as well, although I'd want to just tread purposefully here to ensure we don't expand it too quickly

[sdroege]

Thanks, it was almost just that (I've submitted a pull request). For "cargo doc" a little bit more is needed, but if you think that's useful to have (it seems useful to me), I can prepare a pull request for that too.

[alexcrichton]

cargo doc --all sounds great to me! I'm sure it'll be requested sooner rather than later :)

[sdroege]

Ok, I'll get to that once "build --all" is ready to be merged

[frewsxcv]

Can this be closed now?

[frewsxcv]

Should the default Travis CI Rust script use --all by default once this lands in stable?

[sdroege]

I would wait until #3515 landed before closing