Add rust library

Signed-off-by: JCW <a1q123456@users.noreply.github.com>

.gitignore

@@ -111,3 +111,6 @@ bld.rippled/
 
 # Suggested in-tree build directory
 /.build*/
+
+# Rust
+external/*/target

CMakeLists.txt

@@ -96,6 +96,7 @@ set(SECP256K1_BUILD_EXHAUSTIVE_TESTS FALSE)
 set(SECP256K1_BUILD_CTIME_TESTS FALSE)
 set(SECP256K1_BUILD_EXAMPLES FALSE)
 add_subdirectory(external/secp256k1)
+add_subdirectory(external/rust-test)
 add_library(secp256k1::secp256k1 ALIAS secp256k1)
 add_subdirectory(external/ed25519-donna)
 add_subdirectory(external/antithesis-sdk)
@@ -129,6 +130,7 @@ target_link_libraries(ripple_libs INTERFACE
   secp256k1::secp256k1
   soci::soci
   SQLite::SQLite3
+  RustTest
 )
 
 # Work around changes to Conan recipe for now.

external/rust-test/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.15)
+project(RustTest)
+
+set(CMAKE_INSTALL_CMAKEDIR "lib/cmake/RustTest")
+
+execute_process(COMMAND cargo run --bin install -- --release WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
+
+set(INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/target/install/release/include/")
+
+add_library(RustTest STATIC IMPORTED GLOBAL)
+
+set_target_properties(RustTest PROPERTIES
+	IMPORTED_LOCATION "${CMAKE_CURRENT_SOURCE_DIR}/target/install/release/lib/RustTest.a"
+	INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/target/install/release/include/"
+)

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+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
+[[package]]
+name = "winnow"
+version = "0.7.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3edebf492c8125044983378ecb5766203ad3b4c2f7a922bd7dd207f6d443e95"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags",
+]

external/rust-test/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "RustTest"
+version = "0.1.0"
+edition = "2024"
+
+[lib]
+name = "test"
+crate-type = ["staticlib"]
+
+[build-dependencies]
+cbindgen = "0.29"
+
+[dependencies]

external/rust-test/build.rs

@@ -0,0 +1,15 @@
+use std::{env};
+use std::{path::PathBuf};
+
+fn main() {
+    let crate_name = env::var("CARGO_PKG_NAME").unwrap();
+    let header_name = format!("{}.h", crate_name);
+
+    let crate_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
+    let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
+    let header_path = out_dir.join(header_name);
+
+    cbindgen::generate(&crate_dir)
+        .expect("Unable to generate bindings")
+        .write_to_file(header_path);
+}

external/rust-test/src/bin/install.rs

@@ -0,0 +1,54 @@
+use std::path::PathBuf;
+use std::process::{Command};
+use std::{env, fs};
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    // Pass 'build' for the first argument and pass all other
+    // parameters to the cargo command
+    Command::new("cargo")
+        .arg("build")
+        .args(args.iter().skip(1))
+        .status()
+        .expect("failed to run cargo");
+    
+    // Determine the build config
+    let build_config = args.iter()
+        .map(|arg| arg.to_lowercase())
+        .filter(|arg| arg == "--release" || arg == "--debug")
+        .next()
+        .unwrap_or("--debug".to_string());
+
+    let config = if build_config == "--debug" { "debug" } else { "release" };
+
+    let crate_name = env::var("CARGO_PKG_NAME").unwrap();
+    let lib_name = format!("{}.a", crate_name);
+    let header_name = format!("{}.h", crate_name);
+
+    let crate_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
+    let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
+    let header_out_path = out_dir.join(&header_name);
+    let binary_dir = crate_dir.join(format!("target/{config}"));
+    let lib_path = fs::read_dir(binary_dir)
+        .expect("Failed to find lib files")
+        .filter_map(Result::ok)
+        .map(|entry| entry.path())
+        .find(|path| path.extension().and_then(|s| s.to_str()) == Some("a"))
+        .expect("Can't find a lib file");
+
+    let install_base_dir = crate_dir.join("target").join("install").join(config);
+    let lib_install_dir = install_base_dir.join("lib");
+    let include_install_dir = install_base_dir.join("include");
+
+    let include_install_path = include_install_dir.join(&header_name);
+    let lib_install_path = lib_install_dir.join(&lib_name);
+
+    let _ = std::fs::create_dir_all(&lib_install_dir);
+    let _ = std::fs::create_dir_all(&include_install_dir);
+
+    fs::copy(header_out_path, &include_install_path).expect("Failed to install the header file");
+    fs::copy(lib_path, &lib_install_path)
+        .expect("Failed to install the lib file");
+
+    println!("Installed to {}", install_base_dir.display());
+}

external/rust-test/src/lib.rs

@@ -0,0 +1,4 @@
+#[unsafe(no_mangle)]
+pub extern "C" fn add(a: i32, b: i32) -> i32 {
+    a + b
+}