procd: nand: dont rely on boardname in nand_upgrade_tar

Kernel and rootfs in a subdirectory matching the userspace boardname,
was intended to use a single sysupgrade-tar archive for multiple boards
with different kernel/rootfs images. This feature was never used.

Use the first found directory in the tar archive instead of relying on
a directory named according to the userspace boardname.

It allows to change the boardname without adding another compatibility
layer - using the nand_board_name() function - for (sub)targets using
the metadata based image validation in favour to
nand_do_platform_check().

Signed-off-by: Mathias Kresin <dev@kresin.me>

diff --git a/package/base-files/files/lib/upgrade/nand.sh b/package/base-files/files/lib/upgrade/nand.sh
index 563db4c320ef24d9008be7015b57fedcf5a1498b..1c6b86bcaa73b13712826e18b46bb9c407aec0ca 100644 (file)
--- a/package/base-files/files/lib/upgrade/nand.sh
+++ b/package/base-files/files/lib/upgrade/nand.sh
@@ -250,19 +250,21 @@ nand_board_name() {
 
 nand_upgrade_tar() {
        local tar_file="$1"
-       local board_name="$(nand_board_name)"
        local kernel_mtd="$(find_mtd_index $CI_KERNPART)"
 
-       local kernel_length=`(tar xf $tar_file sysupgrade-$board_name/kernel -O | wc -c) 2> /dev/null`
-       local rootfs_length=`(tar xf $tar_file sysupgrade-$board_name/root -O | wc -c) 2> /dev/null`
+       local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
+       board_dir=${board_dir%/}
 
-       local rootfs_type="$(identify_tar "$tar_file" sysupgrade-$board_name/root)"
+       local kernel_length=`(tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null`
+       local rootfs_length=`(tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null`
+
+       local rootfs_type="$(identify_tar "$tar_file" ${board_dir}/root)"
 
        local has_kernel=1
        local has_env=0
 
        [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
-               tar xf $tar_file sysupgrade-$board_name/kernel -O | mtd write - $CI_KERNPART
+               tar xf $tar_file ${board_dir}/kernel -O | mtd write - $CI_KERNPART
        }
        [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel=0
 
@@ -271,12 +273,12 @@ nand_upgrade_tar() {
        local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
        [ "$has_kernel" = "1" ] && {
                local kern_ubivol="$(nand_find_volume $ubidev $CI_KERNPART)"
-               tar xf $tar_file sysupgrade-$board_name/kernel -O | \
+               tar xf $tar_file ${board_dir}/kernel -O | \
                        ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
        }
 
        local root_ubivol="$(nand_find_volume $ubidev rootfs)"
-       tar xf $tar_file sysupgrade-$board_name/root -O | \
+       tar xf $tar_file ${board_dir}/root -O | \
                ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
 
        nand_do_upgrade_success