rootfs_*.bbclass: add some helper functions

This patch adds the following helper functions:
 * delayed_postinsts - outputs the list of delayed postinstalls;
 * save_postinsts - this will save the delayed postinstalls for ipk/deb
   in /etc/(ipk|deb)_postinsts;
 * rootfs_remove_packages - removes packages from an image;

Additionaly, this patch will remove a piece of code in
rootfs_ipk_do_rootfs which will be moved to image.bbclass and used for
all backends;

[YOCTO #4484]

(From OE-Core rev: 928df79cd3964f775c4c6e4283ef84b8882f9328)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 25 insertions, 2 deletions

diff --git a/meta/classes/rootfs_rpm.bbclass b/meta/classes/rootfs_rpm.bbclass
index d373dab408..4194c5621c 100644
--- a/meta/classes/rootfs_rpm.bbclass
+++ b/meta/classes/rootfs_rpm.bbclass
@@ -114,8 +114,8 @@ fakeroot rootfs_rpm_do_rootfs () {
         ${ROOTFS_POSTPROCESS_COMMAND}
 
         if ${@base_contains("IMAGE_FEATURES", "read-only-rootfs", "true", "false" ,d)}; then
-                if [ -d ${IMAGE_ROOTFS}/etc/rpm-postinsts ] ; then
-                        if [ "`ls -A ${IMAGE_ROOTFS}/etc/rpm-postinsts`" != "" ] ; then
+                if [ -d ${IMAGE_ROOTFS}${sysconfdir}/rpm-postinsts ] ; then
+                        if [ "`ls -A ${IMAGE_ROOTFS}${sysconfdir}/rpm-postinsts`" != "" ] ; then
                                 bberror "Some packages could not be configured offline and rootfs is read-only."
                                 exit 1
                         fi
@@ -135,6 +135,20 @@ fakeroot rootfs_rpm_do_rootfs () {
         log_check rootfs
 }
 
+rootfs_rpm_do_rootfs[vardeps] += "delayed_postinsts"
+
+delayed_postinsts() {
+        if [ -d ${IMAGE_ROOTFS}${sysconfdir}/rpm-postinsts ]; then
+                ls ${IMAGE_ROOTFS}${sysconfdir}/rpm-postinsts
+        fi
+}
+
+save_postinsts() {
+        # this is just a stub. For RPM, the failed postinstalls are already saved in
+        # /etc/rpm-postinsts
+        true
+}
+
 remove_packaging_data_files() {
         # Save the rpmlib for increment rpm image generation
         t="${T}/saved_rpmlib/var/lib"
@@ -165,6 +179,15 @@ rootfs_install_packages() {
         package_install_internal_rpm
 }
 
+rootfs_remove_packages() {
+        rpm -e --nodeps --root=${IMAGE_ROOTFS} --dbpath=/var/lib/rpm\
+                --define='_cross_scriptlet_wrapper ${WORKDIR}/scriptlet_wrapper'\
+                --define='_tmppath /install/tmp' $@
+
+        # remove temp directory
+        rm -rf ${IMAGE_ROOTFS}/install
+}
+
 python () {
     if d.getVar('BUILD_IMAGES_FROM_FEEDS', True):
         flags = d.getVarFlag('do_rootfs', 'recrdeptask')