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feat: Enable Nix 2.33 APIs for pre-release testing/validation

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Pre-release versions (2.33.0pre) now enable 2.33 APIs, allowing development
and integration testing before the stable release. Tests remain disabled for
2.33 until stable to avoid blocking on unrelated pre-release issues.
This commit is contained in:
Robert Hensing 2025-12-09 22:14:02 +01:00
parent 00fafd48ec
commit 53641a179b
6 changed files with 118 additions and 46 deletions
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39
nix-bindings-store/build.rs
View file

@ -1,39 +1,6 @@
use nix_bindings_util::nix_version::emit_version_cfg;
fn main() {
// Get nix version
let nix_version = pkg_config::probe_library("nix-store-c").unwrap().version;
// Generate version flags
// Unfortunately, Rust doesn't give us a "greater than" operator in conditional
// compilation, so we pre-evaluate the version comparisons here, making use
// of the multi-valued nature of Rust cfgs.
let relevant_versions = vec!["2.26", "2.33"];
let versions = relevant_versions
.iter()
.map(|v| format!("\"{}\"", v))
.collect::<Vec<_>>()
.join(",");
// Declare the known versions, so that Rust can warn about unknown versions
// that aren't part of `relevant_versions` yet - feel free to add entries.
println!(
"cargo:rustc-check-cfg=cfg(nix_at_least,values({}))",
versions
);
let nix_version = nix_version.split('.').collect::<Vec<&str>>();
let nix_version = (
nix_version[0].parse::<u32>().unwrap(),
nix_version[1].parse::<u32>().unwrap(),
);
for version_str in relevant_versions {
let version = version_str.split('.').collect::<Vec<&str>>();
let version = (
version[0].parse::<u32>().unwrap(),
version[1].parse::<u32>().unwrap(),
);
if nix_version >= version {
println!("cargo:rustc-cfg=nix_at_least=\"{}\"", version_str);
}
}
emit_version_cfg(&nix_version, &["2.26", "2.33.0pre", "2.33"]);
}