Use disk cache in //src/test/shell/bazel:bazel_proto_library_test

This should reduce the amount of time spent compiling protobuf

PiperOrigin-RevId: 691577804
Change-Id: I86cf7f901b8cc68ab6b493d55c40165ee2aa0189

src/test/shell/bazel/bazel_proto_library_test.sh

@@ -24,6 +24,8 @@ source "${CURRENT_DIR}/../integration_test_setup.sh" \
 
 function set_up() {
   add_protobuf "MODULE.bazel"
+  # Enable disk cache to avoid compiling protobuf for each test.
+  enable_disk_cache
 }
 
 # Creates directories and files with the structure:

src/test/shell/testenv.sh

@@ -364,6 +364,10 @@ EOF
   fi
 }
 
+function enable_disk_cache() {
+  echo "common --disk_cache=$TEST_TMPDIR/disk_cache" >> $TEST_TMPDIR/bazelrc
+}
+
 function setup_android_sdk_support() {
   # Required for runfiles library on Windows, since $(rlocation) lookups
   # can't do directories. We use android-28's android.jar as the anchor