Lib.rs

Bazel runfiles support for cargo.

The source code is just copied directly from rules_rust/tools/runfiles/runfiles.rs. Tests are not expected to work. This is mainly useful for:

• Bootstrapping cargo_universe.
• Allowing things depending on runfiles to be built with cargo.
• Allow requesting dependiencies on runfiles in cargo.toml.
• Support IDE code completion.

lib.rs:

Runfiles lookup library for Bazel-built Rust binaries and tests.

USAGE:

1. Depend on this runfiles library from your build rule:

     rust_binary(
         name = "my_binary",
         ...
         data = ["//path/to/my/data.txt"],
         deps = ["@rules_rust//tools/runfiles"],
     )
   

2. Import the runfiles library.

   extern crate runfiles;
   
   use runfiles::Runfiles;
   

3. Create a Runfiles object and use rlocation to look up runfile paths:

   
   use runfiles::Runfiles;
   
   let r = Runfiles::create().unwrap();
   let path = r.rlocation("my_workspace/path/to/my/data.txt");
   
   let f = File::open(path).unwrap();
   // ...