image_builder: split image_config.sh & standardization headers

image_builder/get_new_image.sh

@@ -0,0 +1,32 @@
+#! /usr/bin/env bash
+
+#
+# Script for image configure
+# @urpylka Artem Smirnov
+# @dvornikov-aa Andrey Dvornikov
+#
+
+# Exit immidiately on non-zero result
+set -e
+
+source echo_stamp.sh
+
+get_image() {
+  # TEMPLATE: get_image <IMAGE_PATH> <RPI_DONWLOAD_URL> 
+  local BUILD_DIR=$(dirname $1)
+  local RPI_ZIP_NAME=$(basename $2)
+  if [ ! -e "${BUILD_DIR}/${RPI_ZIP_NAME}" ];
+  then
+    echo_stamp "1. Downloading original Linux distribution"
+    wget -nv -O ${BUILD_DIR}/${RPI_ZIP_NAME} $2 > /dev/null \
+    && echo_stamp "Downloading complete" "SUCCESS"
+  else
+    echo_stamp "1. Linux distribution already donwloaded"
+  fi
+  echo_stamp "2. Unzipping Linux distribution image"
+  local RPI_IMAGE_NAME=$(echo ${RPI_ZIP_NAME} | sed 's/zip/img/')
+  unzip -p ${BUILD_DIR}/${RPI_ZIP_NAME} ${RPI_IMAGE_NAME} > $1
+  echo_stamp "Unzipping complete" "SUCCESS"
+}
+
+get_image $1 $2