Re: [PATCH] image.bbclass: Ensure IMAGE_FSTYPES is fully evaluated before live/live logic

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Thu, 2014-06-26 at 08:27 -0400, Tom Rini wrote:
> Incase we have overrides applied to IMAGE_FSTYPES we need to make sure
> that we evaluate it fully before performing the live and vmdk logic
> checks.
> 
> Signed-off-by: Tom Rini <tom.rini@gmail.com>
> ---
>  meta/classes/image.bbclass | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
> index 79de5a2..ccfa1b1 100644
> --- a/meta/classes/image.bbclass
> +++ b/meta/classes/image.bbclass
> @@ -78,10 +78,11 @@ do_rootfs[vardeps] += "BAD_RECOMMENDATIONS NO_RECOMMENDATIONS"
>  
>  do_build[depends] += "virtual/kernel:do_deploy"
>  
> +EVALED_IMAGE_FSTYPES := "${IMAGE_FSTYPES}"
>  def build_live(d):
> -    if base_contains("IMAGE_FSTYPES", "live", "live", "0", d) == "0": # live is not set but hob might set iso or hddimg
> -        d.setVar('NOISO', base_contains('IMAGE_FSTYPES', "iso", "0", "1", d))
> -        d.setVar('NOHDD', base_contains('IMAGE_FSTYPES', "hddimg", "0", "1", d))
> +    if base_contains("EVALED_IMAGE_FSTYPES", "live", "live", "0", d) == "0": # live is not set but hob might set iso or hddimg
> +        d.setVar('NOISO', base_contains('EVALED_IMAGE_FSTYPES', "iso", "0", "1", d))
> +        d.setVar('NOHDD', base_contains('EVALED_IMAGE_FSTYPES', "hddimg", "0", "1", d))
>          if d.getVar('NOISO', True) == "0" or d.getVar('NOHDD', True) == "0":
>              return "image-live"
>          return ""

The trouble is this doesn't add up. 

EVALED_IMAGE_FSTYPES := "${IMAGE_FSTYPES}"

basically sets EVALED_... to the expanded value of IMAGE_FSTYPES

base_contains() also expands the variable its passed.

I'm a little concerned as to why those two expansions of the same thing
should result in something different.

From your later explaination, it would appear the use of the override is
causing problems but I don't understand how immediate expansion would
work around that :/.

So before this merges, more investigation is needed as there is
something not adding up...

Cheers,

Richard


> @@ -90,7 +91,7 @@ def build_live(d):
>  IMAGE_TYPE_live = "${@build_live(d)}"
>  
>  inherit ${IMAGE_TYPE_live}
> -IMAGE_TYPE_vmdk = '${@base_contains("IMAGE_FSTYPES", "vmdk", "image-vmdk", "", d)}'
> +IMAGE_TYPE_vmdk = '${@base_contains("EVALED_IMAGE_FSTYPES", "vmdk", "image-vmdk", "", d)}'
>  inherit ${IMAGE_TYPE_vmdk}
>  
>  python () {
> -- 
> 1.9.3
>