[OE-core][PATCH] classes/image: Add hooks

[Joshua Watt <jpewhacker@gmail.com>]

Add variables to add arbitrary hooks into postfuncs and cleandirs. This
is required by SPDX to capture the files created in the image functions.
In addition, report the image type in a similar manner to subimages so
that the hooks can know the original image type

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
 meta/classes-recipe/image.bbclass | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/meta/classes-recipe/image.bbclass b/meta/classes-recipe/image.bbclass
index 28be6c63623..f5c8c8caeee 100644
--- a/meta/classes-recipe/image.bbclass
+++ b/meta/classes-recipe/image.bbclass
@@ -351,6 +351,9 @@ python setup_debugfs () {
     setup_debugfs_variables(d)
 }
 
+IMAGE_TASK_POSTFUNCS ?= ""
+IMAGE_TASK_CLEANDIRS ?= ""
+
 python () {
     vardeps = set()
     # We allow CONVERSIONTYPES to have duplicates. That avoids breaking
@@ -507,12 +510,15 @@ python () {
         d.setVar(task, '\n'.join(cmds))
         d.setVarFlag(task, 'func', '1')
         d.setVarFlag(task, 'fakeroot', '1')
+        d.setVarFlag(task, 'imagetype', realt)
 
         d.appendVarFlag(task, 'prefuncs', ' ' + debug + ' set_image_size')
         d.prependVarFlag(task, 'postfuncs', 'create_symlinks ')
         d.appendVarFlag(task, 'subimages', ' ' + ' '.join(subimages))
         d.appendVarFlag(task, 'vardeps', ' ' + ' '.join(vardeps))
         d.appendVarFlag(task, 'vardepsexclude', ' DATETIME DATE ' + ' '.join(vardepsexclude))
+        d.appendVarFlag(task, 'postfuncs', ' ' + d.getVar("IMAGE_TASK_POSTFUNCS"))
+        d.appendVarFlag(task, 'cleandirs', ' ' + d.getVar("IMAGE_TASK_CLEANDIRS"))
 
         bb.debug(2, "Adding task %s before %s, after %s" % (task, 'do_image_complete', after))
         bb.build.addtask(task, 'do_image_complete', after, d)
-- 
2.43.2