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

[Laurentiu Palcu]

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 ${WORKDIR}/intercept_scripts
+	fi
+
 	rootfs_${IMAGE_PKGTYPE}_do_rootfs
 
 	insert_feed_uris
-- 
1.7.9.5