CODEWITHSUNDEEP
rustrust-cargo
atx
atx

Reputation: 5069

How to patch crates-io with path using Cargo?

In my Rust crate I need to be able to use 2 git repositories both checked out in the root of my crate. They are both modified and pkg_b requires an older version of pkg_a, 0.1.0. I can't seem to get pkg_b to use the newer version of pkg_a, 0.2.0. My current workaround has been to just update the Cargo.toml file in pkg_b.

My crate's Cargo.toml:

[package]
name = "mypkg"
version = "0.1.0"

[dependencies]
pkg_a = { path = "./pkg_a" } # This is 0.2.0 with my changes added
pkg_b = { path = "./pkg_b" }

[patch.crates-io]
pkg_a = { path = "./pkg_a", features = ["serde_support"] }

And pkg_b's Cargo.toml:

[package]
name = "pkg_b"
version = "0.1.0"

[dependencies]
pkg_a = { version = "0.1.0", features = ["serde_support"] }

Upvotes: 2

Views: 2429

Answers (1)

Oleksii Filonenko
Oleksii Filonenko

Reputation: 1653

If pkg_b requires pkg_a ^0.1.0 (meaning "between 0.1.0 and 0.2.0", see caret requirements in Cargo), you can't make it accept pkg_a 0.2.0 as a dependency, even if you patch the registry to make local pkg_a repository discoverable. Maintaining a patch for pkg_b/Cargo.toml seems like your best bet.

Upvotes: 2

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