Auto-generate CSSStyleDeclaration.webidl for CSS properties based on the style crate

1 files changed, 8 insertions, 1 deletions

diff --git a/components/script/build.rs b/components/script/build.rs
index 1b8ed578387..1af9fbf7648 100644
--- a/components/script/build.rs
+++ b/components/script/build.rs
@@ -15,6 +15,13 @@ use std::time::Instant;
 fn main() {
     let start = Instant::now();
 
+    let style_out_dir = PathBuf::from(env::var_os("DEP_SERVO_STYLE_CRATE_OUT_DIR").unwrap());
+    let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    let build_dir = out_dir.join("build");
+    let json = "css_properties.json";
+    let _ = std::fs::create_dir(&build_dir); // Ignore errors: they most likely indicate it already exists
+    std::fs::copy(style_out_dir.join(json), build_dir.join(json)).unwrap();
+
     // This must use the Ninja generator -- it's the only one that
     // parallelizes cmake's output properly.  (Cmake generates
     // separate makefiles, each of which try to build
@@ -35,7 +42,7 @@ fn main() {
         start.elapsed().as_secs()
     );
 
-    let json = PathBuf::from(env::var_os("OUT_DIR").unwrap())
+    let json = out_dir
         .join("build")
         .join("InterfaceObjectMapData.json");
     let json: Value = serde_json::from_reader(File::open(&json).unwrap()).unwrap();