Well, I had not considered that option. I can’t say I am to keen on having wrapper classes with the same name as the upstream classes as I think it leads to confusion. And the solution doesn’t scale very well (what if two layers want to override the same class?). But on the positive side it works for any class without requiring changes to OE-Core. And I guess the latter wins. I wish there was a more bitbakey way to add to classes though (bbclassappend anyone? 😉).
//Peter From: Jose Quaresma <[email protected]> Sent: den 19 oktober 2021 19:15 To: Peter Kjellerstedt <[email protected]> Cc: OE-core <[email protected]> Subject: Re: [OE-core] [PATCH] externalsrc.bbclass: Allow externalsrc to be extended with extra classes Hi Peter, require the class on the new one will do the same and we don't need any changes for that but I may not be seeing everything require ${COREBASE}/meta/classes/externalsrc.bbclass Jose Peter Kjellerstedt <[email protected]<mailto:[email protected]>> escreveu no dia terça, 19/10/2021 à(s) 18:03: The EXTERNALSRC_EXTENSIONS variable holds a list of additional classes that will be inherited when externalsrc is inherited. Signed-off-by: Peter Kjellerstedt <[email protected]<mailto:[email protected]>> --- We have had a local copy of this class for a long time since we need to make it suppport a local class when checking BBCLASSEXTEND. And now we wanted to add some more functionality that should be active when externalsrc is in use. So instead of forking the class even more, I thought it would be better to make the upstream class extendable. The solution was inspired by USERADDEXTENSION in useradd.bbclass. meta/classes/externalsrc.bbclass | 5 +++++ meta/conf/documentation.conf | 1 + 2 files changed, 6 insertions(+) diff --git a/meta/classes/externalsrc.bbclass b/meta/classes/externalsrc.bbclass index abfe24bace..488d75760f 100644 --- a/meta/classes/externalsrc.bbclass +++ b/meta/classes/externalsrc.bbclass @@ -265,3 +265,8 @@ def srctree_configure_hash_files(d): return ' '.join(out_items) EXPORT_FUNCTIONS do_buildclean + +# Use the following to extend externalsrc with custom functionality +EXTERNALSRC_EXTENSIONS ??= "" + +inherit ${EXTERNALSRC_EXTENSIONS} diff --git a/meta/conf/documentation.conf b/meta/conf/documentation.conf index 80ad8e10d5..6d5b734b02 100644 --- a/meta/conf/documentation.conf +++ b/meta/conf/documentation.conf @@ -160,6 +160,7 @@ EXTENDPE[doc] = "Used with file and pathnames to create a prefix for a recipe's EXTENDPKGV[doc] = "The full package version specification as it appears on the final packages produced by a recipe." EXTERNALSRC[doc] = "If externalsrc.bbclass is inherited, this variable points to the source tree, which is outside of the OpenEmbedded build system." EXTERNALSRC_BUILD[doc] = "If externalsrc.bbclass is inherited, this variable points to the directory in which the recipe's source code is built, which is outside of the OpenEmbedded build system." +EXTERNALSRC_EXTENSIONS[doc] = "A list of additional classes that will be inherited when externalsrc is inherited." EXTRA_IMAGE_FEATURES[doc] = "The list of additional features to include in an image. Configure this variable in the conf/local.conf file in the Build Directory." EXTRA_IMAGEDEPENDS[doc] = "A list of recipes to build that do not provide packages for installing into the root filesystem. Use this variable to list recipes that are required to build the final image, but not needed in the root filesystem." EXTRA_OECMAKE[doc] = "Additional cmake options." -- Best regards, José Quaresma
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