version_info method

Cargo.toml

@@ -56,6 +56,7 @@ unicase = "2"
 url = "2"
 
 [build-dependencies]
+chrono = "0.4"
 serde_json = "1"
 
 [target.'cfg(target_os="linux")'.dependencies]
@@ -77,5 +78,5 @@ nix = { version = "0.29", default-features = false, features = [
 [target.'cfg(target_os = "windows")'.dependencies]
 windows-service = "0.8"
 
-[profile.release]
-strip = "symbols"
+# [profile.release]
+# strip = "symbols"

build.rs

@@ -1,4 +1,13 @@
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    if let Ok(git_hash) = get_git_hash() {
+        // Set the environment variables
+        println!("cargo:rustc-env=GIT_HASH={}", git_hash.trim());
+    }
+
+    // Get the build time
+    let build_time = chrono::Utc::now().format("%Y-%m-%d %H:%M:%S").to_string();
+    println!("cargo:rustc-env=BUILD_TIME={}", build_time);
+
     #[cfg(target_os = "windows")]
     if let Ok(cargo_target_dir) = get_cargo_target_dir() {
         let mut f = std::fs::File::create(cargo_target_dir.join("build.log"))?;
@@ -85,3 +94,10 @@ fn get_crate_dir(crate_name: &str) -> Result<std::path::PathBuf, Box<dyn std::er
     }
     Ok(crate_dir.ok_or("crate_dir")?)
 }
+
+fn get_git_hash() -> std::io::Result<String> {
+    use std::process::Command;
+    let git_hash = Command::new("git").args(["rev-parse", "--short", "HEAD"]).output()?.stdout;
+    let git_hash = String::from_utf8(git_hash).map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidData, e))?;
+    Ok(git_hash)
+}

src/args.rs

@@ -9,7 +9,7 @@ use std::net::{IpAddr, SocketAddr, ToSocketAddrs};
 use std::str::FromStr;
 
 #[derive(Debug, Clone, clap::Parser)]
-#[command(author, version, about = "Tunnel interface to proxy.", long_about = None)]
+#[command(author, version = version_info(), about = "Tunnel interface to proxy.", long_about = None)]
 pub struct Args {
     /// Proxy URL in the form proto://[username[:password]@]host:port,
     /// where proto is one of socks4, socks5, http.
@@ -127,6 +127,10 @@ pub struct Args {
     pub udpgw_keepalive: Option<u64>,
 }
 
+fn version_info() -> &'static str {
+    concat!(env!("CARGO_PKG_VERSION"), " (", env!("GIT_HASH"), " ", env!("BUILD_TIME"), ")")
+}
+
 fn validate_tun(p: &str) -> Result<String> {
     #[cfg(target_os = "macos")]
     if p.len() <= 4 || &p[..4] != "utun" {