vergen

Generate build, git, rustc, cargo, and sysinfo related cargo:rustc-env instructions via build.rs for use in your code via the env! macro or option_env! macro.

Sponsors

Special thanks to the sponsors of this project

• tryretool

Release 7.0 Breaking Changes

• chrono has been replaced with time. The time crate is better maintained.
• The local timezone support in the build and git features has been moved behind a local_offset feature flag. This is due to a potential segfault when using localtime_r as the time crate does.
• To build with the local_offset feature, you must also explicitly delare that you are acknowledging the potential unsoundness by setting RUSTFLAGS="--cfg unsound_local_offset". Per the time docs this isn't tested, so use with extreme caution.

Notes about git 0.15

This update to git picked up some security related features. In docker environments especially, this requires a safe.directory configuration. There are a couple methods for achieving this.

1. If you control the build, you can add git config --global --add safe.directory /workspace to the build file.
2. If you do not control the docker build, you can add git config --global --add safe.directory /workspace && before the actual command you are running when using docker run.
3. If you do not control the docker build, you can mount a .gitconfig file at /root that includes the safe.directory configuration. I use this method myself when building static binaries with clux/muslrust.

docker run -v cargo-cache:/root/.cargo/registry -v (pwd):/volume -v ~/.gitconfig:/root/.gitconfig:ro --rm -t clux/muslrust:stable cargo build --release

See https://github.com/rustyhorde/vergen/pull/126 for more discussion on the topic. If the solutions above do not work for your usecase, you can pin your vergen version to 7.4.3. Feel free to open issues about this. If it comes up enough, I could support a version of vergen with the older git2 dependency.

MSRV

The current minimum supported rust version is 1.63.0

Current Release

Example Usage

See the documentation at docs.rs for example usage

Environment Variables

A full list of environment variables that can be generated are listed in the following table.

Contributing

See the documentation at CONTRIBUTING.md

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT) at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.