fix hermes building error in ci

Author: JayT106

nix/default.nix

@@ -61,30 +61,7 @@ import sources.nixpkgs {
         };
       };
     })
-    (_: pkgs: {
-      hermes =
-        let
-          # The informalsystems/hermes v1.13.1 requires rust version >= v1.83
-          # The nixpkgs 24.11 is using rust version v1.82
-          # Use fenix to select different rust toolchain version
-          rustToolchain =
-            (import sources.fenix {
-              inherit system;
-            }).fromToolchainFile
-              {
-                file = ./rust-toolchain.toml;
-                sha256 = "sha256-s1RPtyvDGJaX/BisLT+ifVfuhDT1nZkZ1NcK8sbwELM=";
-              };
-          fenixRustPlatform = pkgs.makeRustPlatform {
-            cargo = rustToolchain;
-            rustc = rustToolchain;
-          };
-        in
-        pkgs.callPackage ./hermes.nix {
-          src = sources.hermes;
-          rustPlatform = fenixRustPlatform;
-        };
-    })
+    (_: pkgs: { hermes = pkgs.callPackage ./hermes.nix { }; })
     (_: pkgs: { test-env = pkgs.callPackage ./testenv.nix { }; })
     (_: pkgs: { cosmovisor = pkgs.callPackage ./cosmovisor.nix { }; })
     (_: pkgs: {

nix/hermes.nix

@@ -1,39 +1,84 @@
 {
-  src,
-  lib,
-  stdenv,
-  darwin,
-  rustPlatform,
-  symlinkJoin,
-  openssl,
-  pkg-config,
-  protobuf, # required by namada_tx crate
+  lib
+, stdenv
+, fetchurl
+, makeWrapper
+, openssl
+, pkg-config
+, darwin
+, qemu
 }:
-rustPlatform.buildRustPackage rec {
-  name = "hermes";
-  inherit src;
-  cargoBuildFlags = "-p ibc-relayer-cli";
+
+let
+  version = "1.13.1";
+  
+  platform = if stdenv.isDarwin then
+    if stdenv.isAarch64 then "aarch64-apple-darwin"
+    else "x86_64-apple-darwin"
+  else if stdenv.isLinux then
+    # for linux, always use the x86_64 version
+    "x86_64-unknown-linux-gnu"
+  else
+    throw "Unsupported platform: ${stdenv.system}";
+  
+  url = "https://github.com/informalsystems/hermes/releases/download/v${version}/hermes-v${version}-${platform}.tar.gz";
+  
+  sha256 = if platform == "aarch64-apple-darwin" then
+    "1j87ikp29008f6x1pcbp8bc77yfhf40sa13d6iliglsisrgsjcas"
+  else if platform == "x86_64-apple-darwin" then
+    "0f9m8g2xg9l3ghvj42kwa7yn6gr3ralylscmz5bs99qdd5hc8fbd"
+  else if platform == "x86_64-unknown-linux-gnu" then
+    "0a5anc32brrl390i1aiz3yaar1s9lh3s8r70liw3v7lgd5fnpzgg"
+  else
+    throw "Unsupported platform: ${stdenv.system}";
+
+in
+stdenv.mkDerivation {
+  pname = "hermes";
+  inherit version;
+  
+  src = fetchurl {
+    inherit url sha256;
+  };
+  
+  nativeBuildInputs = [ makeWrapper ];
+  
   buildInputs = lib.optionals stdenv.isDarwin [
     darwin.apple_sdk.frameworks.Security
-    pkg-config
-    openssl
     darwin.libiconv
     darwin.apple_sdk.frameworks.SystemConfiguration
-    protobuf
   ];
-  cargoLock = {
-    lockFile = "${src}/Cargo.lock";
-  };
-  doCheck = false;
-  RUSTFLAGS = "--cfg ossl111 --cfg ossl110 --cfg ossl101";
-  OPENSSL_NO_VENDOR = "1";
-  OPENSSL_DIR = symlinkJoin {
-    name = "openssl";
-    paths = with openssl; [
-      out
-      dev
-    ];
+  
+  sourceRoot = ".";
+  
+  installPhase = ''
+    mkdir -p $out/bin
+    cp hermes $out/bin/
+    chmod +x $out/bin/hermes
+  '';
+  
+  postFixup = ''
+    ${if (stdenv.isLinux && stdenv.isAarch64) then ''
+      # for ARM64 uses qemu to simulate x86_64
+      mv $out/bin/hermes $out/bin/hermes.x86_64
+      cat > $out/bin/hermes << EOF
+      #!/bin/sh
+      exec ${qemu}/bin/qemu-x86_64 $out/bin/hermes.x86_64 "\$@"
+      EOF
+      chmod +x $out/bin/hermes
+    '' else if stdenv.isLinux then ''
+      wrapProgram $out/bin/hermes --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ openssl ]}"
+    '' else ''
+      wrapProgram $out/bin/hermes
+    ''}
+  '';
+  
+  meta = with lib; {
+    description = "An IBC Relayer written in Rust";
+    homepage = "https://hermes.informal.systems/";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ ];
   };
-  PROTOC = "${protobuf}/bin/protoc";
-  PROTOC_INCLUDE = "${protobuf}/include";
+
 }

nix/rust-toolchain.toml

@@ -36,18 +36,6 @@
         "url": "https://github.com/dapphub/dapptools/archive/ba9fbcf95c01d247a30b26d7e064e8abdfba79db.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
-    "fenix": {
-        "branch": "main",
-        "description": "Rust toolchains and rust-analyzer nightly for Nix [maintainers=@figsoda, @winterqt, @zmitchell]",
-        "homepage": "",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "8c0499eb59f1c2c07b3734c210480623e1fe90a1",
-        "sha256": "071sakz1zwa9jkskf3fqlgf166ms7rysa674qarr61s1r89k324g",
-        "type": "tarball",
-        "url": "https://github.com/nix-community/fenix/archive/8c0499eb59f1c2c07b3734c210480623e1fe90a1.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
     "flake-compat": {
         "branch": "master",
         "description": null,
@@ -85,16 +73,16 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "hermes": {
-        "branch": "",
+        "branch": "main",
         "description": "Rust implementation of an Inter-Blockchain Communication (IBC) relayer",
         "homepage": "",
         "owner": "informalsystems",
         "repo": "hermes",
-        "rev": "5e403dd5c72ecc2bc296af4ddb70eae98ad28c5d",
-        "sha256": "186m5fp8y7l3clylkjdyxflbi16fij1k9k8gl9xkpz8wcm69n3bq",
-        "tag": "v1.13.1",
+        "rev": "9a071a9b1d3d5af92e62e5488e874e18aab56f3d",
+        "sha256": "0wh5hcybirpw2vilqpd10jyxd59wh70xwzhfzlrl196b6l02gckq",
+        "tag": "",
         "type": "tarball",
-        "url": "https://github.com/informalsystems/hermes/archive/5e403dd5c72ecc2bc296af4ddb70eae98ad28c5d.tar.gz",
+        "url": "https://github.com/informalsystems/hermes/archive/9a071a9b1d3d5af92e62e5488e874e18aab56f3d.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {