crosutils/make_factory_package.sh: Support relative path

make_factory_package.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 generate a factory install partition set and miniomaha.conf
 # file from a release image and a factory image. This creates a server
 # configuration that can be installed using a factory install shim.
 #
@@ skipping 68 matching lines @@
   echo "Done"
 fi
 
 # Use this image as the source image to copy
 RELEASE_DIR="$(dirname "${FLAGS_release}")"
 FACTORY_DIR="$(dirname "${FLAGS_factory}")"
 RELEASE_IMAGE="$(basename "${FLAGS_release}")"
 FACTORY_IMAGE="$(basename "${FLAGS_factory}")"
 
 prepare_img() {
-  local outdev="$FLAGS_diskimg"
+  local outdev="$(readlink -f "$FLAGS_diskimg")"

[Nick Sanders, 2011/01/13 06:54:08]

I don't think this will work. The issue is not symlinks but the fact that we
change directories during the script.

ls -1 $(pwd)/build_packages

may work 

[Hung-Te, 2011/01/13 07:05:51]

  Right, but readlink -f reports full path.
  I think readlink -f is more reliable then the result of ls.
  Check the rest of scripts in src/scripts - they all use readlink -f.

   local sectors="$FLAGS_sectors"
   local force_full="true"
 
   # We'll need some code to put in the PMBR, for booting on legacy BIOS.
   echo "Fetch PMBR"
   local pmbrcode="$(mktemp -d)/gptmbr.bin"
   sudo dd bs=512 count=1 if="${FLAGS_release}" of="${pmbrcode}" status=noxfer
 
   echo "Prepare base disk image"
   # Create an output file if requested, or if none exists.
@@ skipping 84 matching lines @@
   IMAGE_IS_UNPACKED=
 else
   #TODO(hungte) Currently we run unpack_partitions.sh if part_tools are not
   # found. If the format of unpack_partitions.sh is reliable, we can prevent
   # creating temporary files. See image_part_offset for more information.
   echo "WARNING: cannot find partition tools. Using unpack_partitions.sh." >&2
   IMAGE_IS_UNPACKED=1
 fi
 
 generate_img() {
-  local outdev="$FLAGS_diskimg"
+  local outdev="$(readlink -f "$FLAGS_diskimg")"
   local sectors="$FLAGS_sectors"
 
   prepare_img
 
   # Get the release image.
   pushd "${RELEASE_DIR}" >/dev/null
 
   echo "Release Kernel"
   image_partition_copy "${RELEASE_IMAGE}" 2 "${outdev}" 4
 
@@ skipping 153 matching lines @@
 To run the server:
   python2.6 devserver.py --factory_config miniomaha.conf"
 }
 
 # Main
 if [ -n "$FLAGS_diskimg" ]; then
   generate_img
 else
   generate_omaha
 fi