[OE-core] [RFC 2/7] image.bbclass: run postinst scripts once, at rootfs time

[Richard Purdie]

On Wed, 2012-09-19 at 14:49 +0300, Laurentiu Palcu wrote:
> This patch will allow the repeating postinst scriptlets to be run
> only once, on host, at do_rootfs time. This will lower the time for
> rootfs generation and, also, instead of running some time consuming
> scriptlets at target's first boot, we will do on the host.
> 
> Signed-off-by: Laurentiu Palcu <laurentiu.palcu at intel.com>
> ---
>  meta/classes/image.bbclass |   24 +++++++++++++++++++++++-
>  1 file changed, 23 insertions(+), 1 deletion(-)
> 
> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
> index ab212b3..4889260 100644
> --- a/meta/classes/image.bbclass
> +++ b/meta/classes/image.bbclass
> @@ -155,7 +155,7 @@ inherit ${IMAGE_CLASSES}
>  
>  IMAGE_POSTPROCESS_COMMAND ?= ""
>  MACHINE_POSTPROCESS_COMMAND ?= ""
> -ROOTFS_POSTPROCESS_COMMAND ?= ""
> +ROOTFS_POSTPROCESS_COMMAND ?= "run_intercept_scriptlets"
>  
>  # some default locales
>  IMAGE_LINGUAS ?= "de-de fr-fr en-gb"
> @@ -174,6 +174,21 @@ do_build[nostamp] = "1"
>  # task, so that we have a single fakeroot context for the whole process.
>  do_rootfs[umask] = "022"
>  
> +
> +run_intercept_scriptlets () {
> +	echo $D >> test.txt
> +	if [ -d ${WORKDIR}/intercept_scripts ]; then
> +		cd ${WORKDIR}/intercept_scripts
> +		echo "Running intercept scripts:"
> +		for script in *; do
> +			if [ "$script" = "*" ]; then break; fi
> +			echo "> Executing $script"
> +			chmod +x $script
> +			./$script
> +		done
> +	fi
> +}
> +
>  fakeroot do_rootfs () {
>  	#set -x
>  	# When use the rpm incremental image generation, don't remove the rootfs
> @@ -202,6 +217,13 @@ fakeroot do_rootfs () {
>  		done
>  	fi
>  
> +	if [ -d ${WORKDIR}/intercept_scripts ]; then
> +		# clean-up old intercept scripts
> +		rm -f ${WORKDIR}/intercept_scripts/*
> +	else
> +		mkdir ${WORKDIR}/intercept_scripts
> +	fi

You can achieve this piece with:

do_rootfs[cleandirs] += "${WORKDIR}/intercept_scripts"

Cheers,

Richard