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rustdependenciesrust-cargo

How to use subpackage of nested Cargo.toml git project?

I want to use the package substrate-test-runtime-client from the substrate GitHub repo.

[dependency]
substrate-test-runtime-client = [git = "https://github.com/paritytech/substrate.git", branch = "master"]

Above Cargo.toml syntax doesn't resolve the issue. How can I extract, compile, and use a subpackage of umbrella package.

Solution

  • You are on the right track. You need to use curly brackets to specify an inline TOML table.

    So either add the following to your Cargo.toml file.

    [dependencies]
substrate-test-runtime-client = { git = "https://github.com/paritytech/substrate.git", branch = "master" }

    Or use this which is equivalent

    [dependencies.substrate-test-runtime-client]
git = "https://github.com/paritytech/substrate.git"
branch = "master"

    Cargo will crawl the downloaded repository looking for a package called substrate-test-runtime-client. See here.