CI: Strip binaries produced by setup-test-env

This reduces artifacts size from 321 MB to 208 MB.

.gitlab/ci/rails.gitlab-ci.yml

@@ -25,6 +25,7 @@ setup-test-env:
     - section_start "setup-test-env" "Setting up testing environment"; scripts/setup-test-env; section_end "setup-test-env";
     - select_gitlab_workhorse_essentials
     - section_start "gitaly-test-build" "Compiling Gitaly binaries"; scripts/gitaly-test-build; section_end "gitaly-test-build";  # Do not use 'bundle exec' here
+    - strip_executable_binaries "${TMP_TEST_FOLDER}"
   artifacts:
     expire_in: 7d
     paths:

scripts/gitlab_component_helpers.sh

@@ -91,6 +91,12 @@ function select_gitlab_workhorse_essentials() {
   mv ${tmp_path} ${TMP_TEST_FOLDER}
 }
 
+function strip_executable_binaries() {
+  local path="$1"
+
+  find "$path" -executable -type f ! -size 0 -print0 | xargs -0 grep -IL . | xargs strip || true
+}
+
 # Assets functions
 function gitlab_assets_archive_doesnt_exist() {
   archive_doesnt_exist "${GITLAB_ASSETS_PACKAGE_URL}"