libloot 0.28.2

A library for accessing LOOT's metadata and sorting functionality.
Documentation 
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use std::process::Command;

fn main() {
    if std::env::var_os("LIBLOOT_REVISION").is_some() {
        return;
    }

    println!("cargo:rerun-if-changed=.git/HEAD");
    println!("cargo:rerun-if-changed=build.rs");

    let Ok(git_rev_parse_output) = Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output()
    else {
        println!("cargo:warning=Calling git rev-parse failed, LIBLOOT_REVISION will be unset!");
        return;
    };

    if let Ok(git_hash) = String::from_utf8(git_rev_parse_output.stdout) {
        println!("cargo:rustc-env=LIBLOOT_REVISION={git_hash}");
    } else {
        println!(
            "cargo:warning=Could not convert git rev-parse output to a UTF-8 string, LIBLOOT_REVISION will be unset!"
        );
    }

    // Don't warn if this errors, as it will error if HEAD points directly to a commit.
    if let Ok(git_symbolic_ref_output) = Command::new("git").args(["symbolic-ref", "HEAD"]).output()
    {
        if let Ok(symbolic_ref) = String::from_utf8(git_symbolic_ref_output.stdout) {
            println!("cargo:rerun-if-changed=.git/{symbolic_ref}");
        } else {
            println!(
                "cargo:warning=Could not convert git symbolic-ref output to a UTF-8 string, LIBLOOT_REVISION may become stale!"
            );
        }
    }
}