classes/image*: Revamp creation of live images

This creates a live image as an IMAGE_FSTYPES, thus removing the
need to have additional -live.bb recipes.  To create a live image
one just needs to add live to the IMAGE_FSTYPES list

(From OE-Core rev: b3ff63796cd6629975ff0a726ba18cc168e0a2b2)

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

1 files changed, 3 insertions, 0 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index edfb2d68c5..79a56f0408 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -29,6 +29,9 @@ LDCONFIGDEPEND_libc-uclibc = ""
 do_rootfs[depends] += "makedevs-native:do_populate_sysroot virtual/fakeroot-native:do_populate_sysroot ${LDCONFIGDEPEND}"
 do_rootfs[depends] += "virtual/update-alternatives-native:do_populate_sysroot update-rc.d-native:do_populate_sysroot"
 
+IMAGE_TYPE = ${@base_contains("IMAGE_FSTYPES", "live", "live", "empty", d)}
+inherit image-${IMAGE_TYPE}
+
 python () {
     deps = bb.data.getVarFlag('do_rootfs', 'depends', d) or ""
     for type in (bb.data.getVar('IMAGE_FSTYPES', d, True) or "").split():