Bug 1455623 part 2 - Not copy generated binding files into dist. r=emilio

MozReview-Commit-ID: GBnkmwjDS8Y

--HG--
extra : rebase_source : 247500457a1f1779ed8a3fd7d43d546e48980e9a

servo/components/style/build_gecko.rs

@@ -3,31 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 mod common {
-    use std::{env, fs, io};
-    use std::path::{Path, PathBuf};
+    use std::env;
+    use std::path::PathBuf;
 
     lazy_static! {
         pub static ref OUTDIR_PATH: PathBuf =
             PathBuf::from(env::var_os("OUT_DIR").unwrap()).join("gecko");
     }
-
-    /// Copy contents of one directory into another.
-    /// It currently only does a shallow copy.
-    pub fn copy_dir<P, Q, F>(from: P, to: Q, callback: F) -> io::Result<()>
-    where
-        P: AsRef<Path>,
-        Q: AsRef<Path>,
-        F: Fn(&Path),
-    {
-        let to = to.as_ref();
-        for entry in from.as_ref().read_dir()? {
-            let entry = entry?;
-            let path = entry.path();
-            callback(&path);
-            fs::copy(&path, to.join(entry.file_name()))?;
-        }
-        Ok(())
-    }
 }
 
 #[cfg(feature = "bindgen")]
@@ -613,23 +595,33 @@ mod bindings {
             generate_bindings(),
             generate_atoms(),
         }
-
-        // Copy all generated files to dist for the binding package
-        let path = DISTDIR_PATH.join("rust_bindings/style");
-        if path.exists() {
-            fs::remove_dir_all(&path).expect("Fail to remove binding dir in dist");
-        }
-        fs::create_dir_all(&path).expect("Fail to create bindings dir in dist");
-        copy_dir(&*OUTDIR_PATH, &path, |_| {}).expect("Fail to copy generated files to dist dir");
     }
 }
 
 #[cfg(not(feature = "bindgen"))]
 mod bindings {
-    use std::env;
-    use std::path::PathBuf;
+    use std::{env, fs, io};
+    use std::path::{Path, PathBuf};
     use super::common::*;
 
+    /// Copy contents of one directory into another.
+    /// It currently only does a shallow copy.
+    fn copy_dir<P, Q, F>(from: P, to: Q, callback: F) -> io::Result<()>
+    where
+        P: AsRef<Path>,
+        Q: AsRef<Path>,
+        F: Fn(&Path),
+    {
+        let to = to.as_ref();
+        for entry in from.as_ref().read_dir()? {
+            let entry = entry?;
+            let path = entry.path();
+            callback(&path);
+            fs::copy(&path, to.join(entry.file_name()))?;
+        }
+        Ok(())
+    }
+
     pub fn generate() {
         let dir = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap()).join("gecko/generated");
         println!("cargo:rerun-if-changed={}", dir.display());