Pack firmware into an image and do update in factory install (separated git).

Since different platforms have different instructions to update their firmware.
In order not to depend on the install shim, we pack all firmware update files
into a single file, i.e. an executable shell script with embedded files.

The original CL (http://codereview.chromium.org/2366001) is reviewed and is
broken down into 5 CLs. This is one of them.

Review URL: http://codereview.chromium.org/2792013

make_factory_package.sh

@@ -24,6 +24,8 @@ get_default_board
 DEFINE_string board "${DEFAULT_BOARD}" "Board for which the image was built"
 DEFINE_string factory "" \
   "Directory and file containing factory image: /path/chromiumos_test_image.bin"
+DEFINE_boolean include_firmware $FLAGS_FALSE \
+  "If set, include the firmware image to the server configuration"
 DEFINE_string release "" \
   "Directory and file containing release image: /path/chromiumos_image.bin"
 
@@ -46,6 +48,7 @@ fi
 # chars like ~ are processed; just doing FOO=`readlink -f ${FOO}` won't work.
 OMAHA_DIR=${SRC_ROOT}/platform/dev
 OMAHA_DATA_DIR=${OMAHA_DIR}/static/
+FIRMWARE_DIR=${SRC_ROOT}/platform/firmware/${FLAGS_board}
 
 if [ ${INSIDE_CHROOT} -eq 0 ]; then
   echo "Caching sudo authentication"
@@ -82,7 +85,7 @@ prepare_dir() {
 prepare_omaha
 
 # Get the release image.
-pushd ${RELEASE_DIR}
+pushd ${RELEASE_DIR} > /dev/null
 echo "Generating omaha release image from ${FLAGS_release}"
 echo "Generating omaha factory image from ${FLAGS_factory}"
 echo "Output omaha image to ${OMAHA_DATA_DIR}"
@@ -108,10 +111,10 @@ efi_hash=`cat efi.gz | openssl sha1 -binary | openssl base64`
 mv efi.gz ${OMAHA_DATA_DIR}
 echo "efi: ${efi_hash}"
 
-popd
+popd > /dev/null
 
 # Go to retrieve the factory test image.
-pushd ${FACTORY_DIR}
+pushd ${FACTORY_DIR} > /dev/null
 prepare_dir
 
 
@@ -128,7 +131,24 @@ state_hash=`cat state.gz | openssl sha1 -binary | openssl base64`
 mv state.gz ${OMAHA_DATA_DIR}
 echo "state: ${state_hash}"
 
-echo "
+popd > /dev/null
+
+if [ ${FLAGS_include_firmware} -eq ${FLAGS_TRUE} ] ; then
+  pushd ${FIRMWARE_DIR} > /dev/null
+
+  ./pack_firmware.sh | gzip -9 > firmware.gz
+  if [ "${PIPESTATUS[*]}" != "0 0" ]; then
+    echo "Failed to pack the firmware image."
+    exit 1
+  fi
+  firmware_hash=`cat firmware.gz | openssl sha1 -binary | openssl base64`
+  mv firmware.gz ${OMAHA_DATA_DIR}
+  echo "firmware: ${firmware_hash}"
+
+  popd > /dev/null
+fi
+
+echo -n "
 config = [
  {
    'qual_ids': set([\"${FLAGS_board}\"]),
@@ -141,12 +161,19 @@ config = [
    'efipartitionimg_image': 'efi.gz',
    'efipartitionimg_checksum': '${efi_hash}',
    'stateimg_image': 'state.gz',
-   'stateimg_checksum': '${state_hash}'
+   'stateimg_checksum': '${state_hash}'," > ${OMAHA_DIR}/miniomaha.conf
+
+if [ ! -z ${FLAGS_include_firmware} ] ; then
+  echo -n "
+   'firmware_image': 'firmware.gz',
+   'firmware_checksum': '${firmware_hash}'," >> ${OMAHA_DIR}/miniomaha.conf
+fi
+
+echo -n "
  },
 ]
-" > ${OMAHA_DIR}/miniomaha.conf
+" >> ${OMAHA_DIR}/miniomaha.conf
 
-popd
 echo "The miniomaha server lives in src/platform/dev"
 echo "to validate the configutarion, run:"
 echo "  python2.6 devserver.py --factory_config miniomaha.conf \