Search for nginx folder based on CARGO_MANIFEST_DIR

.github/workflows/rust.yml

@@ -24,6 +24,7 @@ jobs:
         apt install -y curl build-essential libpcre3 libpcre3-dev zlib1g zlib1g-dev libssl-dev libgd-dev libxml2 libxml2-dev uuid-dev clang
         curl http://nginx.org/download/nginx-1.25.2.tar.gz | tar xz
         ls -l
+        ls -l nginx-1.25.2
         echo $PWD
         cargo build --verbose
     - name: Run tests

nginx_module/build.rs

@@ -77,6 +77,9 @@ fn main() {
 
 fn search_nginx_root_folder() -> String {
     fn check_nginx_root(path: &Path) -> bool {
+        if path.ends_with("nginx-1.25.2") {
+            println!("cargo:warning: Testing nginx folder");
+        }
         INCLUDE_SUBDIRS.iter().all(|subdir| {
             [path, Path::new(subdir)]
                 .iter()
@@ -96,15 +99,17 @@ fn search_nginx_root_folder() -> String {
 
     // First, try to find the include folders in any of the parent folders of this folder,
     // This is the case when this is a submodule of nginx
+    let manifest_dir = env!("CARGO_MANIFEST_DIR");
     for base in base_locations {
-        let folder = base.to_string();
+        let folder = format!("{manifest_dir}/{base}");
         if check_nginx_root(Path::new(&folder)) {
             return folder;
         }
     }
 
     // If we are not a nginx submodule, try to find the folder side by side
     for base in base_locations {
+        let base = format!("{manifest_dir}/{base}");
         for entry in std::fs::read_dir(base)
             .expect("Cannot read directory")
             .flatten()