Merge pull request #469 from Lange-Studios/fix-cargo-watch-rebuild-cycle

Fixed cyclic build with cargo watch and rust-analyzer for header and json files

Author: Bromeon

godot-bindings/src/godot_exe.rs

@@ -23,7 +23,10 @@ const JSON_PATH: &str = concat!(env!("CARGO_MANIFEST_DIR"), "/src/gen/extension_
 
 pub fn load_gdextension_json(watch: &mut StopWatch) -> String {
     let json_path = Path::new(JSON_PATH);
-    rerun_on_changed(json_path);
+
+    // Listening to changes on files that are generated by this build step cause an infinite loop with cargo watch of
+    // build -> detect change -> rebuild -> detect change -> ...
+    // rerun_on_changed(json_path);
 
     let godot_bin = locate_godot_binary();
     rerun_on_changed(&godot_bin);
@@ -72,7 +75,9 @@ pub fn write_gdextension_headers(
         // }
     };
 
-    rerun_on_changed(inout_h_path);
+    // Listening to changes on files that are generated by this build step cause an infinite loop with cargo watch of
+    // build -> detect change -> rebuild -> detect change -> ...
+    // rerun_on_changed(inout_h_path);
     patch_c_header(inout_h_path, is_engine_4_0);
     watch.record("patch_header_h");
 

godot-bindings/src/header_gen.rs

@@ -9,7 +9,10 @@ use std::path::Path;
 
 pub(crate) fn generate_rust_binding(in_h_path: &Path, out_rs_path: &Path) {
     let c_header_path = in_h_path.display().to_string();
-    println!("cargo:rerun-if-changed={}", c_header_path);
+
+    // Listening to changes on files that are generated by this build step cause an infinite loop with cargo watch of
+    // build -> detect change -> rebuild -> detect change -> ...
+    // println!("cargo:rerun-if-changed={}", c_header_path);
 
     let builder = bindgen::Builder::default()
         .header(c_header_path)