[PATCH v6 13/13] rootfs: Handle failures when postprocess is rerun

[Vijai Kumar K <Vijaikumar_Kanagarajan@mentor.com>]

The apt state information in var/lib/apt/lists is cleared as
part of postprocessing. This makes apt-get calls in cache_deb_src
fail when rerunning the postprocess task.

Since we cannot run apt-get update again to refresh the state
information, copy the apt state information from the initial
bootstrapped image.

Signed-off-by: Vijai Kumar K <Vijaikumar_Kanagarajan@mentor.com>
---
 meta/classes/rootfs.bbclass | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
index ed43fb9..bebc0c4 100644
--- a/meta/classes/rootfs.bbclass
+++ b/meta/classes/rootfs.bbclass
@@ -190,6 +190,10 @@ cache_deb_src() {
         sudo mv "${ROOTFSDIR}"/etc/resolv.conf "${ROOTFSDIR}"/etc/resolv.conf.isar
     fi
     rootfs_install_resolvconf
+    # Note: ISAR updates the apt state information(apt-get update) only once during bootstrap and
+    # relies on that through out the build. Copy that state information instead of apt-get update
+    # which generates a new state from upstream.
+    sudo cp -Trpn "${BOOTSTRAP_SRC}/var/lib/apt/lists/" "${ROOTFSDIR}/var/lib/apt/lists/"
 
     deb_dl_dir_import ${ROOTFSDIR} ${ROOTFS_DISTRO}
     debsrc_download ${ROOTFSDIR} ${ROOTFS_DISTRO}
-- 
2.17.1