Factored common functionality out of the Courgette stress test scripts

courgette/run_mem_test

 #!/bin/bash
 
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Collect memory usage on the patches from run_stress_test
 
-error() {
-  echo "error: ${@}" >&2
-}
+source "$(dirname ${0})/stress_test_common"
 
 main() {
   if [ $# -lt 1 ]; then
     cat <<EOF
 
 USAGE: $(basename ${0}) dir
 
 Collect memory usage on the patches from run_stress_test
 
 EOF
@@ skipping 38 matching lines @@
     local applied_bsdiff="${out_base}.applied_bsdiff"
     local bsdiff_mem="${out_base}.bsdiff_mem"
     valgrind --tool=massif --massif-out-file="${bsdiff_mem}" bspatch \
       "${original}" "${applied_bsdiff}" "${bsdiff_patch}" &
 
     wait
   done
 }
 
 main "${@}"