How to override the source of external dependencies? similar to patch.crates.io

[janosimas]

I have a Bazel/rules_rust project without a Cargo.toml and I was unable to find how to override the source of a dependency.

When I crate a spec pointing to my fork, it works for direct dependents. When other crates depend on the crate I forked, they get a different version from crates.io.

crate.spec(package = "tokio", git =...)           # <- works for direct dependencies

How can I define a specific version and override it with a git repo?
Something like

crate.spec(package = "tokio", version = "=1.36.0",...)

git_override(
    module_name = "tokio",
    remote = "...",
    commit = "...",
)

[illicitonion]

It don't believe we currently have a [patches] equivalent from Cargo.toml support for crate.spec - it shouldn't be too fiddly to add one (the crate.spec stuff effectively just adds stuff to the Cargo.toml file we use for splicing in the [dependencies] section - adding a crate.patch or something that does the same for the [patches] section could work fine.