Change src repository structure

# Treat DEVICE_LIST as DEVICE_LIST_<first_branch>

first_branch=$(cut -d ',' -f 1 <<< "$BRANCH_NAME")

if [ -n "$DEVICE_LIST" ]; then

  device_list_first_branch="DEVICE_LIST_$(sed 's/[^[:alnum:]]/_/g' <<< $first_branch)"

  device_list_first_branch="DEVICE_LIST_$(sed 's/.*-\([a-zA-Z]*\)$/\1/' <<< $first_branch)"

  device_list_first_branch=${device_list_first_branch^^}

  read $device_list_first_branch <<< "$DEVICE_LIST,${!device_list_first_branch}"

fi

# If needed, migrate from the old SRC_DIR structure

if [ -d "$SRC_DIR/.repo" ]; then

  branch_dir=$(repo info -o | sed -ne 's/Manifest merge branch: refs\/heads\///p' | sed 's/[^[:alnum:]]/_/g')

  branch_dir=${branch_dir^^}

  echo ">> [$(date)] WARNING: old source dir detected, moving source from \"\$SRC_DIR\" to \"\$SRC_DIR/$branch_dir\""

  if [ -d "$branch_dir" ] && [ -z "$(ls -A "$branch_dir")" ]; then

    echo ">> [$(date)] ERROR: $branch_dir already exists and is not empty; aborting"

  fi

  mkdir -p "$branch_dir"

  find . -maxdepth 1 ! -name "$branch_dir" ! -path . -exec mv {} "$branch_dir" \;

fi

sync_successful=true

if [ "$LOCAL_MIRROR" = true ]; then

fi

for branch in ${BRANCH_NAME//,/ }; do

  branch_dir=$(sed 's/[^[:alnum:]]/_/g' <<< $branch)

  branch_dir=$(sed 's/.*-\([a-zA-Z]*\)$/\1/' <<< $branch)

  branch_dir=${branch_dir^^}

  device_list_cur_branch="DEVICE_LIST_$branch_dir"

  devices=${!device_list_cur_branch}