Smash out the router library

processor/ethereum/router/build.rs

@@ -0,0 +1,42 @@
+use std::{env, fs};
+
+use alloy_sol_macro_input::SolInputKind;
+
+fn write(sol: syn_solidity::File, file: &str) {
+  let sol = alloy_sol_macro_expander::expand::expand(sol).unwrap();
+  fs::write(file, sol.to_string()).unwrap();
+}
+
+fn sol(sol_files: &[&str], file: &str) {
+  let mut sol = String::new();
+  for sol_file in sol_files {
+    sol += &fs::read_to_string(sol_file).unwrap();
+  }
+  let SolInputKind::Sol(sol) = syn::parse_str(&sol).unwrap() else {
+    panic!("parsed .sols file wasn't SolInputKind::Sol");
+  };
+  write(sol, file);
+}
+
+fn main() {
+  let artifacts_path =
+    env::var("OUT_DIR").unwrap().to_string() + "/serai-processor-ethereum-router";
+
+  if !fs::exists(&artifacts_path).unwrap() {
+    fs::create_dir(&artifacts_path).unwrap();
+  }
+
+  build_solidity_contracts::build(
+    &["../../../networks/ethereum/schnorr/contracts", "../erc20/contracts"],
+    "contracts",
+    &artifacts_path,
+  )
+  .unwrap();
+
+  // This cannot be handled with the sol! macro. The Solidity requires an import
+  // https://github.com/alloy-rs/core/issues/602
+  sol(
+    &["../../../networks/ethereum/schnorr/contracts/Schnorr.sol", "contracts/Router.sol"],
+    &(artifacts_path + "/router.rs"),
+  );
+}