kernel-yocto: fix non-git builds

The ability to build non-git repositories was broken by two changes:

 - The existence of an empty 'patches' directory created during the
   unpack phase. This dir was incorrectly identified as a valid meta
   directory and broke the build. By ensuring that it is removed before
   creating the empty repository, it will no longer be found instead of
   the real meta directory.

 - The attempt to reset the git repository to a specific SRCREV when
   no SRCREV was provided. By checking for a SRCREV of 'INVALID', we
   avoid any processing and failed git operations.

(From OE-Core rev: d5451dda1b8cfbbe8b6a779b0cd9b1397ebf1a07)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 45bdc9670a..5706a9e4e3 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -179,9 +179,11 @@ do_kernel_checkout() {
                         bberror "S is not set to the linux source directory. Check "
                         bbfatal "the recipe and set S to the proper extracted subdirectory"
                 fi
+                rm -f .gitignore
                 git init
                 git add .
                 git commit -q -m "baseline commit: creating repo for ${PN}-${PV}"
+                git clean -d -f
         fi
         # end debare
 
@@ -287,7 +289,7 @@ do_validate_branches() {
         if [ "${machine_srcrev}" = "AUTOINC" ]; then
                 bbnote "SRCREV validation is not required for AUTOREV"
         elif [ "${machine_srcrev}" = "" ]; then
-                if [ "${SRCREV}" != "AUTOINC" ]; then
+                if [ "${SRCREV}" != "AUTOINC" ] && [ "${SRCREV}" != "INVALID" ]; then
                        # SRCREV_machine_<MACHINE> was not set. This means that a custom recipe
                        # that doesn't use the SRCREV_FORMAT "machine_meta" is being built. In
                        # this case, we need to reset to the give SRCREV before heading to patching