refactor: rewrite

gpservice/build.rs

@@ -0,0 +1,25 @@
+use common::sha256_digest;
+use std::path::Path;
+use std::{env, fs};
+
+fn main() {
+    let gpservice_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let profile = env::var("PROFILE").unwrap();
+    let gpclient_path = Path::new(&gpservice_dir)
+        .join("../target")
+        .join(profile)
+        .join("gpclient");
+
+    if !gpclient_path.exists() {
+        // error if gpclient doesn't exist
+        panic!("Please build gpclient first");
+    }
+
+    if let Ok(digest) = sha256_digest(gpclient_path) {
+        let out_dir = env::var("OUT_DIR").unwrap();
+        let dest_path = format!("{out_dir}/client_hash.rs");
+        fs::write(dest_path, format!("pub const GPCLIENT_HASH: &str = \"{digest}\";")).unwrap();
+    } else {
+        panic!("Error: Unable to get gpclient hash");
+    }
+}