cargo metadata --no-deps includes all packages in the workspace

[sfackler]

Problem

The --no-deps flag of cargo-metadata is documented as such

        --no-deps                     Output information only about the root package and don't fetch dependencies

From that, I would expect that the output would only include a single package. However, when run in a workspace, information about all packages in the workspace is output.

Steps

1. Find a workspace with multiple packages.
2. Run cargo metadata --no-deps --format-version 1
3. Observe multiple packages in output

Notes

Output of cargo version: cargo 1.41.0 (626f0f40e 2019-12-03)

[ehuss]

Would you be OK with just updating the help page? I don't think it's something we can change. Does it cause a problem in some way?

[sfackler]

Ideally there'd be a better way of using cargo-metadata with crate-oriented operations, but minimally the help docs should say how it behaves here.

[ehuss]

I filed #7927 as a simple doc fix. As for the way cargo metadata handles the "current" package, I agree it is limiting and confusing. I think #4018 and #7754 cover that problem, though.