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fn main() {
// Set RSCLAW_BUILD_VERSION and RSCLAW_BUILD_DATE at compile time.
// CI overrides these via env vars; local dev gets sensible defaults.
//
// VERSION CONVENTION:
// RSCLAW_BUILD_VERSION stores the bare version WITHOUT "v" prefix.
// Display code (preparse.rs, main.rs) adds "v" when showing to users.
// CI/scripts should pass bare versions: RSCLAW_BUILD_VERSION=2026.4.15
// NOT: RSCLAW_BUILD_VERSION=v2026.4.15
let version = std::env::var("RSCLAW_BUILD_VERSION").unwrap_or_else(|_| {
std::env::var("CARGO_PKG_VERSION").unwrap_or_else(|_| "dev".to_owned())
});
// Defensive: strip a leading 'v' so CI mistakes don't produce vv2026.5.1.
let version = version.trim_start_matches('v');
println!("cargo:rustc-env=RSCLAW_BUILD_VERSION={version}");
// Short commit hash (6 chars). CI can override; locally we shell out
// to git. `cargo:rerun-if-changed=.git/HEAD` makes cargo rebuild when
// HEAD moves so `rsclaw -v` reflects the current commit, not a stale
// one cached from the previous build.
println!("cargo:rerun-if-changed=.git/HEAD");
println!("cargo:rerun-if-changed=.git/refs/heads");
if std::env::var("RSCLAW_BUILD_COMMIT").is_err() {
let commit = std::process::Command::new("git")
.args(["rev-parse", "--short=6", "HEAD"])
.output()
.ok()
.and_then(|o| String::from_utf8(o.stdout).ok())
.map(|s| s.trim().to_owned())
.filter(|s| !s.is_empty())
.unwrap_or_else(|| "unknown".to_owned());
println!("cargo:rustc-env=RSCLAW_BUILD_COMMIT={commit}");
}
if std::env::var("RSCLAW_BUILD_DATE").is_err() {
// Simple date without external crates
let output = std::process::Command::new("date").arg("+%Y-%m-%d").output();
let date = output
.ok()
.and_then(|o| String::from_utf8(o.stdout).ok())
.map(|s| s.trim().to_owned())
.unwrap_or_else(|| "unknown".to_owned());
println!("cargo:rustc-env=RSCLAW_BUILD_DATE={date}");
}
}