Some core::version constants contain "VERGEN_IDEMPOTENT_OUTPUT" instead of something useful. #1572
Description
Description
When using librespot as a library, some core::version variables return "VERGEN_IDEMPOTENT_OUTPUT" instead of correct/useful values.
Version
All versions of librespot. This issue is due to a dependency.
How to reproduce
cargo init librespot-versioncd librespot-versioncargo add librespot- Edit src/main.rs as follows:
use librespot_core::version;
fn main() {
println!("version::VERSION_STRING {}", version::VERSION_STRING);
println!("version::BUILD_DATE {}", version::BUILD_DATE);
println!("version::SHA_SHORT {}", version::SHA_SHORT);
println!("version::COMMIT_DATE {}", version::COMMIT_DATE);
println!("version::SEMVER {}", version::SEMVER);
println!("version::BUILD_ID {}", version::BUILD_ID);
}
cargo run
Log
version::VERSION_STRING librespot-VERGEN_IDEMPOTENT_OUTPUT
version::BUILD_DATE 2025-09-05
version::SHA_SHORT VERGEN_IDEMPOTENT_OUTPUT
version::COMMIT_DATE VERGEN_IDEMPOTENT_OUTPUT
version::SEMVER 0.7.1
version::BUILD_ID 2dJHc34q
Host (what you are running librespot on):
- OS: Linux
- Platform: x86
Additional context
This is a known limitation of vergen, see rustyhorde/vergen#216. I think VERSION_STRING in particular is an issue for us, that one should be more sensible.