Strip binaries in rust-toolchain/bin before putting them into a tarball

This will reduce the size of the tarball a little bit.

R=hans@chromium.org

Bug: 1439640
Change-Id: I8901fc129d7fac843e8b481b8fc999bb21a0af8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4501207
Reviewed-by: Hans Wennborg <hans@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1139530}
NOKEYCHECK=True
GitOrigin-RevId: 95433419c7af1b4fc43a01946c3099228072053b

Author: danakj

package_rust.py

@@ -8,6 +8,7 @@
 import os
 import platform
 import shutil
+import subprocess
 import sys
 import tarfile
 
@@ -91,6 +92,14 @@ def main():
 
     BuildCrubit(args.build_mac_arm)
 
+    # Strip everything in bin/ to reduce the package size.
+    bin_dir_path = os.path.join(RUST_TOOLCHAIN_OUT_DIR, 'bin')
+    if sys.platform != 'win32' and os.path.exists(bin_dir_path):
+        for f in os.listdir(bin_dir_path):
+            file_path = os.path.join(bin_dir_path, f)
+            if not os.path.islink(file_path):
+                subprocess.call(['strip', file_path])
+
     with tarfile.open(os.path.join(THIRD_PARTY_DIR,
                                    RUST_TOOLCHAIN_PACKAGE_NAME),
                       'w:xz',