Add `cargo new --workspace` to create a workspace

[camelid]

Describe the problem you are trying to solve

One has to manually create a new directory and setup a Cargo.toml, rather than being able to simply run cargo new foo --workspace and have a basic template set-up.

Describe the solution you'd like

Add the option --workspace to cargo new that creates a new workspace with the provided name.

Notes

The feature is not too important, but it seems like it would streamline the process of creating a new workspace a bit.

For general template support, see #5151

For adding workspace members to a workspace, see #6378

[pksunkara]

Just wanted to chime in and say that we have been looking to implement this with pksunkara/cargo-workspaces#15. Once that PR is merged, you should be able to do cargo ws init.

[buzmeg]

Should this also be closed as postponed per #8411 ?

[Stargateur]

@buzmeg why is there another issue that ask about this feature ?

[H2rmone]

Same confusion here. In Javascript community, tools like lerna, yarn workspace and nx both have command to create workspace project. Cargo workspace includes many feature, I think it will save a lot of beginners' time if we have command to create workspace project like cargo new --workspace.

[dobromyslov]

Are there any plans to implement this feature? Looks like the templates feature was postponed last year.

[drebbe-intrepid]

Any update with this? I would love this feature also.