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# Used by swupd-image.bbclass to generate additional images as
# configured by SWUPD_IMAGES.
#
# These additional images are virtual image recipes with
# empty do_rootfs and a do_image which merely copies the
# relevant content from the mega bundle.
#
# They do not get built by default. One has to request building
# them explictly. For example:
#
# SWUPD_BUNDLES = "foo"
# BUNDLE_CONTENTS[foo] = "foo-bar"
# SWUPD_IMAGES = "extended"
# SWUPD_IMAGES[extended] = "foo"
#
# $ bitbake core-image-minimal
# $ bitbake core-image-minimal-extended
python swupdimage_virtclass_handler () {
pn = e.data.getVar("PN", True)
cls = e.data.getVar("BBEXTENDCURR", True)
imageext = e.data.getVar("BBEXTENDVARIANT", True)
if cls != 'swupdimage':
return
if not imageext:
bb.fatal('swupdimage must be used with a parameter i.e. BBCLASSEXTEND="swupdimage:foo"')
# Rename the virtual recipe to create the desired image variant.
e.data.setVar("PN_BASE", pn)
pn_base = pn
pn = pn + '-' + imageext
e.data.setVar("PN", pn)
# Sanity check settings to catch errors already during parsing.
imagebundles = (e.data.getVarFlag('SWUPD_IMAGES', imageext, True) or '').split()
if not imagebundles:
bb.fatal('SWUPD_IMAGES[%s] is not set, this should list the bundles which are to be added to the base image.' % imageext)
bundles = (e.data.getVar('SWUPD_BUNDLES', True) or "").split()
for bundle in imagebundles:
if not bundle in bundles:
bb.fatal('%s from SWUPD_IMAGES[%s] is not the name of a bundle.' % (bundle, imageext))
if len(set(imagebundles)) != len(imagebundles):
bb.fatal('SWUPD_IMAGES[%s] contains duplicate entries' % imageext)
# Needed by do_image_append() in swupd-image.bbclass.
e.data.setVar("IMAGE_BUNDLE_NAME", imageext)
# We override the default methods such that they only copy from the mega rootfs.
e.data.setVar("do_image", " swupd_create_rootfs(d)\n")
# do_rootfs must not be empty, because empty tasks get skipped
# and we don't want that for do_rootfs because its cleandirs
# variable triggers the creation of the IMGDEPLOYDIR that we
# are going to write into.
e.data.setVar("do_rootfs", " pass")
# Depend on complete bundle generation in the base image.
dep = ' %s:do_swupd_update' % pn_base
e.data.appendVarFlag('do_image', 'depends', dep)
}
addhandler swupdimage_virtclass_handler
swupdimage_virtclass_handler[eventmask] = "bb.event.RecipePreFinalise"
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