fix: build.rs when EXTISM_ENGINE_PATH is set

extism · Sep 25, 2024 · 5f01ac8 · 5f01ac8
1 parent 3eb4e49
commit 5f01ac8
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/bin/build.rs b/bin/build.rs
@@ -1,7 +1,12 @@
 fn main() {
     println!("cargo::rerun-if-changed=src/invoke.py");
-    println!("cargo::rerun-if-changed=../lib/target/wasm32-wasi/release/core.wasm");
 
     let out = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap()).join("core.wasm");
-    std::fs::copy("../lib/target/wasm32-wasi/release/core.wasm", out).unwrap();
+    if let Ok(path) = std::env::var("EXTISM_ENGINE_PATH") {
+        println!("cargo::rerun-if-changed={path}");
+        std::fs::copy(path, out).unwrap();
+    } else {
+        println!("cargo::rerun-if-changed=../lib/target/wasm32-wasi/release/core.wasm");
+        std::fs::copy("../lib/target/wasm32-wasi/release/core.wasm", out).unwrap();
+    }
 }