By default use the most recently built image when modifying an image for test.

src/scripts/mod_image_for_test.sh

 #!/bin/bash
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script to modify a keyfob-based chromeos system image for testability.
 
 # Load common constants.  This should be the first executable line.
 # The path to common.sh should be relative to your script's location.
 . "$(dirname "$0")/common.sh"
 
-DEFINE_string image "rootfs.image"    \
+IMAGES_DIR="${DEFAULT_BUILD_ROOT}/images"
+DEFAULT_IMAGE="${IMAGES_DIR}/$(ls -t $IMAGES_DIR 2>&-| head -1)/rootfs.image"

[petkov, 2009/12/07 22:14:11]

Does it make sense to use the get_latest_image.sh script instead?

+DEFINE_string image "$DEFAULT_IMAGE"    \
   "Location of the rootfs raw image file"
 
 # Parse command line
 FLAGS "$@" || exit 1
 eval set -- "${FLAGS_ARGV}"
 
 # Make sure anything mounted in the rootfs is cleaned up ok on exit.
 cleanup_rootfs_mounts() {
   # Occasionally there are some daemons left hanging around that have our
   # root image file system open. We do a best effort attempt to kill them.
@@ skipping 30 matching lines @@
 set -e
 trap cleanup EXIT
 
 ROOT_FS_DIR="`dirname ${FLAGS_image}`/rootfs"
 mkdir -p "${ROOT_FS_DIR}"
 
 LOOP_DEV=`sudo losetup -f`
 sudo losetup "${LOOP_DEV}" "${FLAGS_image}"
 sudo mount "${LOOP_DEV}" "${ROOT_FS_DIR}"
 
+echo "Modifying image ${FLAGS_image} for test..."
+
 # Run build steps for modify for test
 sudo mkdir -p "${ROOT_FS_DIR}/modify_build"
 scripts_dir="${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts"
 for script in "${scripts_dir}"/b[0-9][0-9][0-9]*[!$~]; do
   . ${script}
 done
 
 MOD_SCRIPTS_ROOT="${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts"
 sudo mkdir -p "${ROOT_FS_DIR}/modify_scripts"
 sudo mount --bind "${MOD_SCRIPTS_ROOT}" "${ROOT_FS_DIR}/modify_scripts"
 
 # Run test setup script inside chroot jail to modify the image
 sudo chroot "${ROOT_FS_DIR}" "/modify_scripts/test_setup.sh"
 
 sudo umount "${ROOT_FS_DIR}/modify_scripts"
 sudo rmdir "${ROOT_FS_DIR}/modify_scripts"
 sudo rm -rf "${ROOT_FS_DIR}/modify_build"
 
 cleanup
 trap - EXIT