[2/2] fff-sysupgrade: fixes shellcheck errors and warnings

Signed-off-by: Tim Niemeyer <tim@tn-x.org>
---
Die Änderungen sind noch nicht auf einem Knoten getestet worden.

 .../fff/fff-sysupgrade/files/etc/sysupgrade.sh     | 54 +++++++++++++++-------
 1 file changed, 37 insertions(+), 17 deletions(-)

Reviewed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

> -----Original Message-----
> From: franken-dev [mailto:franken-dev-bounces@freifunk.net] On Behalf
> Of Tim Niemeyer
> Sent: Sonntag, 2. Juli 2017 10:42
> To: franken-dev@freifunk.net
> Subject: [PATCH 2/2] fff-sysupgrade: fixes shellcheck errors and warnings
> 
> Signed-off-by: Tim Niemeyer <tim@tn-x.org>
> ---
> Die Änderungen sind noch nicht auf einem Knoten getestet worden.
> 
>  .../fff/fff-sysupgrade/files/etc/sysupgrade.sh     | 54
+++++++++++++++-----
> --
>  1 file changed, 37 insertions(+), 17 deletions(-)
> 
> diff --git a/src/packages/fff/fff-sysupgrade/files/etc/sysupgrade.sh
> b/src/packages/fff/fff-sysupgrade/files/etc/sysupgrade.sh
> index 1680378..df9d519 100755
> --- a/src/packages/fff/fff-sysupgrade/files/etc/sysupgrade.sh
> +++ b/src/packages/fff/fff-sysupgrade/files/etc/sysupgrade.sh
> @@ -14,7 +14,8 @@ case $BOARD in
>      * )
>          SOC="ar71xx" ;;
>  esac
> -echo -ne "\nHardware: $BOARD\n"
> +echo ""
> +echo "Hardware: $BOARD"
> 
>  #rewrite BOARD
>  case $BOARD in
> @@ -36,22 +37,24 @@ esac
> 
>  wget "${UPGRADE_PATH}/release.nfo"
>  if [ ! -f release.nfo ]; then
> -  echo -ne "Latest release information not found. Please try to update
> manually.\n\n"
> +  echo "Latest release information not found. Please try to update
> manually."
> +  echo ""
>    exit 1
>  fi
> -VERSION=$(cat release.nfo|awk -F: '/VERSION:/ { print $2 }')
> +VERSION=$(awk -F: '/VERSION:/ { print $2 }' release.nfo)
>  rm -f release.nfo
> -echo -ne "Firmware found on server: $VERSION\n"
> +echo "Firmware found on server: $VERSION"
> 
> -if [ $VERSION -eq $FIRMWARE_VERSION ]; then
> -  echo -ne "The installed firmware version is already the current
> version.\n\n"
> +if [ "$VERSION" -eq "$FIRMWARE_VERSION" ]; then
> +  echo "The installed firmware version is already the current version."
> +  echo ""
> 
>    if [ "$1" = "--script" ]; then
>      exit 1
>    fi
> 
>    while true; do
> -    echo -ne "Do you want to reinstall the current version? [y/N]\n"
> +    echo "Do you want to reinstall the current version? [y/N]"
>      read DO_UPDATE
>      case $DO_UPDATE in
>        [yY]*|[Jj]*)
> @@ -67,33 +70,50 @@ if [ $VERSION -eq $FIRMWARE_VERSION ]; then
>    done
>  fi
> 
> -if [ "$FIRMWARE_COMMUNITY" == "franken" ]; then
> +if [ "$FIRMWARE_COMMUNITY" = "franken" ]; then
>      FIRMWARE_COMMUNITY="fff"
>  fi
> 
>  FILE="${FIRMWARE_COMMUNITY}-${VERSION}-${SOC}-g-${BOARD}-
> squashfs-sysupgrade.bin"
> -echo -ne "Downloading $FILE\n\n"
> +echo "Downloading $FILE"
> +echo ""
>  wget "${UPGRADE_PATH}/${FILE}"
>  wget "${UPGRADE_PATH}/${FILE}.sha256"
> 
> -echo -ne "\ndone. Comparing sha256 sums: "
> -sha256sum -c ${FILE}.sha256
> +sum=$(sha256sum -c "${FILE}.sha256")
>  ret=$?
> +echo ""
> +echo "done. Comparing sha256 sums: $sum"
>  echo
>  if [ $ret -ne 0 ]; then
> -  echo -ne "sha256 sums do not match. Try restarting this script to
> redownload the firmware.\n\n"
> -  rm -f ${FILE}*
> +  echo "sha256 sums do not match. Try restarting this script to
redownload
> the firmware."
> +  echo ""
> +  rm -f "${FILE}" "${FILE}.sha256"
>    exit 1
>  else
>    if [ "$1" = "--script" ]; then
> -    echo -ne "\nStarting firmware upgrade. Don't touch me until I
> reboot.\n\n\n"
> -    sysupgrade ${FILE}
> +    echo ""
> +    echo "Starting firmware upgrade. Don't touch me until I reboot."
> +    echo ""
> +    echo ""
> +    sysupgrade "${FILE}"
>    fi
>    while true; do
>      read -p "sha256 sums correct. Should I start upgrading the firmware
(y/N)?
> " yn
>      case $yn in
> -        [Yy]*|[Jj]*) echo -ne "\nStarting firmware upgrade. Don't touch
me
> until I reboot.\n\n\n"; sysupgrade ${FILE}; break;;
> -        *) echo -ne "\nAborting firmware upgrade.\n\n"; rm -f ${FILE}*;
exit 0;;
> +        [Yy]*|[Jj]*)
> +            echo ""
> +            echo "Starting firmware upgrade. Don't touch me until I
reboot."
> +            echo ""
> +            echo ""
> +            sysupgrade "${FILE}"
> +            break;;
> +        *)
> +            echo ""
> +            echo "Aborting firmware upgrade."
> +            echo ""
> +            rm -f "${FILE}" "${FILE}.sha256"
> +            exit 0;;
>      esac
>    done
>  fi
> --
> 2.1.4
> 
> --
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