[PATCH 1/1] sstate: compress rootfs sstate files

[Uladzimir Bely <ubely@ilbers.de>]

This saves about 1-2 GiB per multiconfig, at the expense of
approximately 20-40 seconds for packing the files.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
---
 meta/classes/rootfs.bbclass                         | 4 ++--
 meta/recipes-core/isar-bootstrap/isar-bootstrap.inc | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
index 2bdb3b6d..15e87bec 100644
--- a/meta/classes/rootfs.bbclass
+++ b/meta/classes/rootfs.bbclass
@@ -298,13 +298,13 @@ do_rootfs_install[sstate-interceptfuncs] = "rootfs_install_sstate_prepare"
 # the buildchroot is owned by root, so we need some sudoing to pack and unpack
 rootfs_install_sstate_prepare() {
     sudo mount --bind ${WORKDIR}/rootfs ${WORKDIR}/mnt/rootfs -o ro
-    sudo tar -C ${WORKDIR}/mnt -cpf ${ROOTFS_SSTATE}/rootfs.tar --one-file-system rootfs
+    sudo tar -C ${WORKDIR}/mnt -cpzf ${ROOTFS_SSTATE}/rootfs.tar.gz --one-file-system rootfs
     sudo umount ${WORKDIR}/mnt/rootfs
 }
 do_rootfs_install_sstate_prepare[lockfiles] = "${REPO_ISAR_DIR}/isar.lock"
 
 rootfs_install_sstate_finalize() {
-    sudo tar -C ${WORKDIR} -xpf ${ROOTFS_SSTATE}/rootfs.tar
+    sudo tar -C ${WORKDIR} -xpzf ${ROOTFS_SSTATE}/rootfs.tar.gz
 }
 
 python do_rootfs_install_setscene() {
diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
index 2f483f5a..99d1d945 100644
--- a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
+++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
@@ -402,11 +402,11 @@ do_bootstrap[sstate-plaindirs] = "${BOOTSTRAP_SSTATE}"
 do_bootstrap[sstate-interceptfuncs] = "bootstrap_sstate_prepare"
 
 bootstrap_sstate_prepare() {
-    sudo tar -C $(dirname "${ROOTFSDIR}") -cpf ${BOOTSTRAP_SSTATE}/bootstrap.tar --one-file-system $(basename "${ROOTFSDIR}")
+    sudo tar -C $(dirname "${ROOTFSDIR}") -cpzf ${BOOTSTRAP_SSTATE}/bootstrap.tar.gz --one-file-system $(basename "${ROOTFSDIR}")
 }
 
 bootstrap_sstate_finalize() {
-    sudo tar -C $(dirname "${ROOTFSDIR}") -xpf ${BOOTSTRAP_SSTATE}/bootstrap.tar
+    sudo tar -C $(dirname "${ROOTFSDIR}") -xpzf ${BOOTSTRAP_SSTATE}/bootstrap.tar.gz
     sudo ln -Tfsr "${ROOTFSDIR}" "${DEPLOY_ISAR_BOOTSTRAP}"
 }
 
-- 
2.20.1