[Fuego] [PATCH v2] need_check: add linux distro automatic detection

[Tim.Bird at sony.com]

OK - it should be obvious by now that I'm going back and catching
up on old e-mails that I should have applied weeks ago.

Sorry for the delay.  Some of these outstanding patches fell through
the cracks.

This is now applied.
Thanks,
 -- Tim


> -----Original Message-----
> From: Daniel Sangorrin on Thursday, January 11, 2018 5:53 PM
> 
> This function can be used by tests that need to know the
> distribution in the target board. The automatic detection
> can be disabled/overriden by manually setting the variables
> BOARD_DISTRO_ID and BOARD_DISTRO_VERSION_ID in the board
> file.
> 
> IMPORTANT: this is not a substitute for individual command
> checks. For example, even if the BOARD_DISTRO_ID is "debian"
> test writers should still check for the existance of "apt-get"
> in case they want to use it.
> 
> Signed-off-by: Daniel Sangorrin <daniel.sangorrin at toshiba.co.jp>
> ---
>  engine/scripts/need_check.sh | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/engine/scripts/need_check.sh b/engine/scripts/need_check.sh
> index 1fd6d6d..2b00d46 100755
> --- a/engine/scripts/need_check.sh
> +++ b/engine/scripts/need_check.sh
> @@ -123,6 +123,33 @@ function get_free_storage {
>    echo $result
>  }
> 
> +# This function detects the Linux distribution used on the target board and
> +# exports the following variables:
> +#    BOARD_DISTRO_ID (e.g. ubuntu, debian, centos)
> +#    BOARD_DISTRO_VERSION_ID (e.g. "16.04", "8", "7")
> +#
> +# If the distribution cannot be automatically detected it will return 1.
> +# Defining BOARD_DISTRO_ID and BOARD_DISTRO_VERSION_ID on the
> board file
> +# disables automatic detection.
> +function check_distro {
> +    if [ -z "$BOARD_DISTRO_ID" ] || [ -z "$BOARD_DISTRO_VERSION_ID" ];
> then
> +        os_release_tmpfile=$(mktemp)
> +        if get "/etc/os-release" $os_release_tmpfile ; then
> +            export BOARD_DISTRO_ID="$(grep ^ID= $os_release_tmpfile | cut -c
> 4-)"
> +            export BOARD_DISTRO_VERSION_ID="$(grep ^VERSION_ID=
> $os_release_tmpfile | cut -c 12-)"
> +        fi
> +        rm $os_release_tmpfile
> +    fi
> +
> +    if [ -z "$BOARD_DISTRO_ID" ] || [ -z "$BOARD_DISTRO_VERSION_ID" ];
> then
> +            echo "ERROR: could not detect the distribution running on the board."
> +            echo "Define BOARD_DISTRO_ID and BOARD_DISTRO_VERSION_ID in
> your board file."
> +            return 1
> +    else
> +        echo "Board distribution is $BOARD_DISTRO_ID
> $BOARD_DISTRO_VERSION_ID"
> +    fi
> +}
> +
>  # $1 has a single string holding a space-separated args:
>  #   arg1 = size
>  #   arg2 = directory to check
> --
> 2.7.4
> 
> 
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