WIP new steps to download raspbian lite image and write to SD card

seqs/raspberry.sh

@@ -15,6 +15,64 @@ WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
 #  #. "$CONFIG_FILE"
 #}
 
+step_1_info() { echo "Download latest raspbian lite image from"
+echoinfo "$downUrl"; }
+step_1_alias() { ALIAS="setup"; }
+step_1() {
+  if [ ! -f "$downLoc" ] ; then
+    exe wget "$downUrl" -O "$downLoc"
+    echo -ne " [I] sha256 sum of download:\n     "
+    exe sha256sum "$downLoc"
+  fi
+  downImgName="${downDir}/$(zipinfo -1 "$downLoc")"
+  if [ ! -f "$downImgName" ] ; then
+    exe unzip "$downLoc" -d "$downDir"
+    endReturn -o $? "Unzip raspbian image failed"
+  fi
+}
+downUrl="https://downloads.raspberrypi.org/raspbian_lite_latest"
+downImgName=""
+downDay=$(date +%Y%m%d)
+downDir="/tmp"
+downLoc="${downDir}/raspbian_$downDay.zip"
+
+step_2_info() { echo -n "Write raspbian image to SD card "
+  if [ ! -z $2 ] ; then echo "$2"; else echo "[SD CARD DEVICE]"; fi }
+step_2_alias() { ALIAS="writesd"; }
+step_2() {
+  local sdDev=""
+  if [ "$downImgName" == "" ] ; then
+    # called again to make sure $downImgName is populated
+    step setup
+  fi
+  if [ ! -f "$downImgName" ] ; then
+    echoerr " [E] No raspian image found"
+    return 1
+  fi
+  if [ ! -z $2 ] && [ "$2" != "" ] ; then
+    sdDev="$2"
+  else
+    exe lsblk -p
+    exe read -p "Provide SD card device (e.g. /dev/sdb): " sdDev
+  fi
+  # check if device is a block special file
+  if [ ! -b "$sdDev" ] ; then
+    echoerr " [E] $sdDev not found"
+    return 1
+  fi
+  exe dd bs=4M if="$downImgName" of="$sdDev" conv=fsync
+  exe sync
+  #x TODO ? automatic remount
+  echoerr " [W] Please remove SD now and plug it back in."
+  exe read -p "     Press enter to contiue."
+}
+
+step_3_info() { echo "Prepare SD for first run"; }
+step_3() {
+  #TODO
+  echo exe touch "$partSdBoot"/ssh
+}
+
 step_20_info() { echo "Disable swap file and remove it"; }
 step_20_alias() { ALIAS="disableswap"; }
 step_20() {
@@ -53,5 +111,5 @@ resizeDevice="/dev/mmcblk0"
 resizePartNo=2
 resizePart="${resizeDevice}p${resizePartNo}"
 
-VERSION_SEQREV=8
+VERSION_SEQREV=9
 . /usr/local/bin/sequencer.sh