[RFC PATCH 2/3] meta/classes/image: added isar_bootstrap_tarball task

[claudius.heine.ext@siemens.com]

From: Claudius Heine <ch@denx.de>

This patch adds the 'isar_bootstrap_tarball' task to the image bbclass.

This task creates a tarball of the isar-bootstrap file system after the
image was generated. This tarball can be later used to regenerate the
image from within isar.

Signed-off-by: Claudius Heine <ch@denx.de>
---
 meta/classes/image.bbclass | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 3bdcb2f..5276825 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -71,3 +71,13 @@ do_copy_boot_files() {
 addtask copy_boot_files before do_build after do_rootfs
 do_copy_boot_files[dirs] = "${DEPLOY_DIR_IMAGE}"
 do_copy_boot_files[stamp-extra-info] = "${DISTRO}-${MACHINE}"
+
+do_isar_bootstrap_tarball() {
+    DEBOOTSTRAP_DIR="${DEPLOY_DIR_IMAGE}/isar-bootstrap-${DISTRO}-${DISTRO_ARCH}/"
+    ISAR_BOOTSTRAP_TARBALL="${DEPLOY_DIR_IMAGE}/isar-bootstrap-${DISTRO}-${DISTRO_ARCH}-${PN}-${MACHINE}.tgz"
+    sudo tar -czf "${ISAR_BOOTSTRAP_TARBALL}" -C ${DEBOOTSTRAP_DIR} \
+        --exclude='./dev/*' --exclude='./proc/*' --exclude='./sys/*' .
+}
+addtask isar_bootstrap_tarball before do_build after do_rootfs
+do_isar_bootstrap_tarball[dirs] = "${DEPLOY_DIR_IMAGE}"
+do_isar_bootstrap_tarball[stamp-extra-info] = "${DISTRO}-${MACHINE}"
-- 
2.17.0