image_types: Refactor compression code into a generic compression solution

The current approach of adding each different compressed image type doesn't
scale. This patch changes the code so compressed images for each form are
automatically available using the form <type>.<compression type> in
IMAGE_FSTYPES. This doesn't change any existing externally visible behaviour
and the image generation process becomes more efficient as a result too.

(From OE-Core rev: b7e4ed41ee480f00b7265341e9e2d2c2b9135143)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 54ab157a44..4db55ff779 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -75,9 +75,7 @@ inherit image-${IMAGE_TYPE}
 
 python () {
     deps = d.getVarFlag('do_rootfs', 'depends') or ""
-    for type in (d.getVar('IMAGE_FSTYPES', True) or "").split():
-        for dep in ((d.getVar('IMAGE_DEPENDS_%s' % type) or "").split() or []):
-            deps += " %s:do_populate_sysroot" % dep
+    deps += imagetypes_getdepends(d)
     for dep in (d.getVar('EXTRA_IMAGEDEPENDS', True) or "").split():
         deps += " %s:do_populate_sysroot" % dep
     d.setVarFlag('do_rootfs', 'depends', deps)