yocto-check-layer: Allow OE-Core to be tested

For unknown reasons we've never seemingly run the check layer script
against OE-Core itself. This isn't entirely straightforward as the core
layer is a bit of a special case, we can't for example compare signatures
against ourselve and we can't remove core from bblayers.conf.

Core does have distro, machine and software components too, in the case
of distro, our fallback default settings. Whilst the qemu machines could
be split into a seperate layer directory, core wouldn't then parse at all
standalone due to the lack of any machine so it seems a bit pointless to
do that.

These changes tweak the script to handle core's special cases, specifically
to allow distro and machine directories and to account for the README placed
a directory level higher than other layers.

(From OE-Core rev: ba312ed228507d05f280aeb96819d671b01400b8)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/scripts/lib/checklayer/__init__.py b/scripts/lib/checklayer/__init__.py
index 78c74ca6ec..0a0db2f02a 100644
--- a/scripts/lib/checklayer/__init__.py
+++ b/scripts/lib/checklayer/__init__.py
@@ -16,6 +16,7 @@ class LayerType(Enum):
     BSP = 0
     DISTRO = 1
     SOFTWARE = 2
+    CORE = 3
     ERROR_NO_LAYER_CONF = 98
     ERROR_BSP_DISTRO = 99
 
@@ -106,7 +107,13 @@ def _detect_layer(layer_path):
         if distros:
             is_distro = True
 
-    if is_bsp and is_distro:
+    layer['collections'] = _get_layer_collections(layer['path'])
+
+    if layer_name == "meta" and "core" in layer['collections']:
+        layer['type'] = LayerType.CORE
+        layer['conf']['machines'] = machines
+        layer['conf']['distros'] = distros
+    elif is_bsp and is_distro:
         layer['type'] = LayerType.ERROR_BSP_DISTRO
     elif is_bsp:
         layer['type'] = LayerType.BSP
@@ -117,8 +124,6 @@ def _detect_layer(layer_path):
     else:
         layer['type'] = LayerType.SOFTWARE
 
-    layer['collections'] = _get_layer_collections(layer['path'])
-
     return layer
 
 def detect_layers(layer_directories, no_auto):