[morty][PATCH] kernel.bbclass: Fix symlink creation when using externalsrc

[Stefan Stanacar <sstncr@gmail.com>]

do_unpack is by default in SRCTREECOVEREDTASKS so this append can't run, since
do_unpack gets removed by when externalsrc is enabled.

This was hidden because externalsrc does actually run do_fetch and do_unpack if
there are type=kmeta or file:// entries in the SRC_URI value of the kernel recipe.
(which is the case for linux-yocto).

Make this a separate task so that it actually gets run for kernel recipes with
no file:// or type=kmeta in SRC_URI.

Signed-off-by: Stefan Stanacar <sstncr@gmail.com>
---
 meta/classes/kernel.bbclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index f8318b8..3f2d796 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -102,7 +102,7 @@ inherit ${KERNEL_CLASSES}
 # the symlink.
 do_unpack[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}"
 do_clean[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}"
-base_do_unpack_append () {
+python do_symlink_staging_dir () {
     s = d.getVar("S", True)
     if s[-1] == '/':
         # drop trailing slash, so that os.symlink(kernsrc, s) doesn't use s as directory name and fail
@@ -119,6 +119,7 @@ base_do_unpack_append () {
             shutil.move(s, kernsrc)
             os.symlink(kernsrc, s)
 }
+addtask do_symlink_staging_dir after do_unpack before do_patch do_configure
 
 inherit kernel-arch deploy
 
-- 
2.7.4