fix(tauri-plugin): do not write permissions for dependencies

The generated permission schema may be different from the one published
on crates.io. If a plugin is built as a dependency, we do not want to
(or cannot) modify the source directory. Skip writing the file in that
case.

Author: Flakebi

crates/tauri-plugin/src/build/mod.rs

@@ -127,7 +127,11 @@ impl<'a> Builder<'a> {
       ));
       let _ = std::fs::remove_file(autogenerated.join(acl::build::PERMISSION_DOCS_FILE_NAME));
     } else {
-      acl::schema::generate_permissions_schema(&permissions, "./permissions")?;
+      println!("cargo:rerun-if-env-changed=CARGO_PRIMARY_PACKAGE");
+      if std::env::var("CARGO_PRIMARY_PACKAGE").is_ok() {
+        // Write permissions to src directory if this is not built as a dependency
+        acl::schema::generate_permissions_schema(&permissions, "./permissions")?;
+      }
       acl::build::generate_docs(
         &permissions,
         &autogenerated,