cargo: Reconfigure when any Cargo.toml is modified

Author: xclaesse

mesonbuild/cargo/interpreter.py

@@ -484,6 +484,9 @@ def __init__(self, env: Environment) -> None:
         # Rustc's config
         self.cfgs = self._get_cfgs()
 
+    def get_build_def_files(self) -> T.List[str]:
+        return [os.path.join(subdir, 'Cargo.toml') for subdir in self.manifests]
+
     def interpret(self, subdir: str) -> mparser.CodeBlockNode:
         manifest = self._load_manifest(subdir)
         pkg, cached = self._fetch_package(manifest.package.name, manifest.package.api)

mesonbuild/interpreter/interpreter.py

@@ -523,6 +523,8 @@ def handle_meson_version_from_ast(self) -> None:
                     self.handle_meson_version(val.value, val)
 
     def get_build_def_files(self) -> mesonlib.OrderedSet[str]:
+        if self.environment.cargo:
+            self.build_def_files.update(self.environment.cargo.get_build_def_files())
         return self.build_def_files
 
     def add_build_def_file(self, f: mesonlib.FileOrString) -> None: