Initial public release v0.1.0

build.rs

@@ -0,0 +1,41 @@
+use std::process::Command;
+
+fn main() {
+    // Git commit hash
+    let git_commit = Command::new("git")
+        .args(["rev-parse", "--short", "HEAD"])
+        .output()
+        .ok()
+        .and_then(|o| String::from_utf8(o.stdout).ok())
+        .map(|s| s.trim().to_string())
+        .filter(|s| !s.is_empty())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    // Build timestamp (UTC)
+    let build_date = Command::new("date")
+        .args(["-u", "+%Y-%m-%dT%H:%M:%SZ"])
+        .output()
+        .ok()
+        .and_then(|o| String::from_utf8(o.stdout).ok())
+        .map(|s| s.trim().to_string())
+        .filter(|s| !s.is_empty())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    // Rust version
+    let rust_version = Command::new("rustc")
+        .arg("--version")
+        .output()
+        .ok()
+        .and_then(|o| String::from_utf8(o.stdout).ok())
+        .map(|s| s.trim().to_string())
+        .filter(|s| !s.is_empty())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    println!("cargo:rustc-env=GIT_COMMIT={git_commit}");
+    println!("cargo:rustc-env=BUILD_DATE={build_date}");
+    println!("cargo:rustc-env=RUST_VERSION={rust_version}");
+
+    // Re-run if git HEAD changes
+    println!("cargo:rerun-if-changed=.git/HEAD");
+    println!("cargo:rerun-if-changed=.git/refs/heads");
+}