feat: use nwaku instead of go-waku

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "waku-sys/vendor"]
 	path = waku-sys/vendor
-	url = https://github.com/status-im/go-waku.git
+	url = https://github.com/waku-org/nwaku

waku-sys/build.rs

@@ -1,86 +1,36 @@
 use std::env;
 use std::env::set_current_dir;
-use std::fs;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
-fn get_go_bin() -> String {
+fn build_nwaku_lib(project_dir: &Path) {
-    if cfg!(target_family = "unix") {
-        let output = String::from_utf8(
-            Command::new("/usr/bin/which")
-                .arg("go")
-                .output()
-                .map_err(|e| println!("cargo:warning=Couldn't find `which` command: {e}"))
-                .expect("`which` command not found")
-                .stdout,
-        )
-        .expect("which output couldnt be parsed");
-
-        if output.is_empty() {
-            println!("cargo:warning=Couldn't find go binary installed, please ensure that it is installed and/or withing the system paths");
-            panic!("Couldn't find `go` binary installed");
-        }
-        output.trim().to_string()
-    } else if cfg!(target_family = "windows") {
-        "go".into()
-    } else {
-        panic!("OS not supported!");
-    }
-}
-
-fn build_go_waku_lib(go_bin: &str, project_dir: &Path) {
-    // Build go-waku static lib
-    // build command taken from waku make file:
-    // https://github.com/status-im/go-waku/blob/eafbc4c01f94f3096c3201fb1e44f17f907b3068/Makefile#L115
-    let out_dir: PathBuf = env::var_os("OUT_DIR").unwrap().into();
     let vendor_path = project_dir.join("vendor");
+
     set_current_dir(vendor_path).expect("Moving to vendor dir");
 
-    let mut cmd = Command::new(go_bin);
+    let mut cmd = Command::new("make");
-    cmd.env("CGO_ENABLED", "1")
+    cmd.arg("libwaku").arg("STATIC=true");
-        .arg("build")
-        .arg("-buildmode=c-archive")
-        .arg("-tags=gowaku_no_rln")
-        .arg("-o")
-        .arg(out_dir.join("libgowaku.a"))
-        .arg("./library/c");
-
-    // Setting `GOCACHE=/tmp/` for crates.io job that builds documentation
-    // when a crate is being published or updated.
-    if std::env::var("DOCS_RS").is_ok() {
-        cmd.env("GOCACHE", "/tmp/");
-    }
-
     cmd.status()
-        .map_err(|e| println!("cargo:warning=go build failed due to: {e}"))
+        .map_err(|e| println!("cargo:warning=make build failed due to: {e}"))
         .unwrap();
 
     set_current_dir(project_dir).expect("Going back to project dir");
 }
 
-fn patch_gowaku_lib() {
+fn generate_bindgen_code(project_dir: &Path) {
-    // Replacing cgo_utils.h as it is only needed when compiling go-waku bindings
+    let vendor_path = project_dir.join("vendor");
-    let lib_dir: PathBuf = env::var_os("OUT_DIR").unwrap().into();
+    let build_dir = vendor_path.join("build");
-    let file_path = lib_dir.join("libgowaku.h");
+    let header_path = vendor_path.join("library/libwaku.h");
-    let data = fs::read_to_string(&file_path).expect("Unable to read file");
-    let new_data = data.replace("#include <cgo_utils.h>", "");
-    fs::write(&file_path, new_data).expect("Unable to write file");
-}
 
-fn generate_bindgen_code() {
+    println!("cargo:rustc-link-search={}", build_dir.display());
-    let lib_dir: PathBuf = env::var_os("OUT_DIR").unwrap().into();
+    println!("cargo:rustc-link-lib=static=waku");
-
+    println!("cargo:rerun-if-changed={}", header_path.display());
-    println!("cargo:rustc-link-search={}", lib_dir.display());
-    println!("cargo:rustc-link-lib=static=gowaku");
-    println!("cargo:rerun-if-changed=libgowaku.h");
-
-    patch_gowaku_lib();
 
     // Generate waku bindings with bindgen
     let bindings = bindgen::Builder::default()
         // The input header we would like to generate
         // bindings for.
-        .header(format!("{}/{}", lib_dir.display(), "libgowaku.h"))
+        .header(format!("{}", header_path.display()))
         // Tell cargo to invalidate the built crate whenever any of the
         // included header files changed.
         .parse_callbacks(Box::new(bindgen::CargoCallbacks))
@@ -98,10 +48,8 @@ fn generate_bindgen_code() {
 
 #[cfg(not(doc))]
 fn main() {
-    let go_bin = get_go_bin();
-
     let project_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
 
-    build_go_waku_lib(&go_bin, &project_dir);
+    build_nwaku_lib(&project_dir);
-    generate_bindgen_code();
+    generate_bindgen_code(&project_dir);
 }

waku-sys/vendor

@@ -1 +1 @@
-Subproject commit e340337d64622d22cb94a969255efe4e36637df0
+Subproject commit b64b017060337dfc427c74c4688e55ca8165caef