[OE-core] [PATCH] Allow different filesystems to be used for VM images.

[Richard Purdie]

On Thu, 2016-04-28 at 15:21 -0400, Ian Reinhart Geiser wrote:
> This allows for things like btrfs to be used vs just ext4.
> The default value of ext4 is kept so there is no functional
> change unless ROOTFS_TYPE is set in the inherting recipe.
> 
> Signed-off-by: Ian Reinhart Geiser <geiseri at geekcentral.pub>
> ---
>  meta/classes/image-vm.bbclass | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)


This seems reasonable but could I ask you to use a variable name with
"VM" in the name please?

I appreciate some of the existing ones don't do this but moving forward
we need to try and better namespace some of these class specific
variables and this seems like a good place to start.

VM_ROOTFS_TYPE would be better for example (or VMIMG_ROOTFS_TYPE).

Cheers,

Richard

> diff --git a/meta/classes/image-vm.bbclass b/meta/classes/image
> -vm.bbclass
> index 47f7326..50d93d5 100644
> --- a/meta/classes/image-vm.bbclass
> +++ b/meta/classes/image-vm.bbclass
> @@ -23,16 +23,17 @@ do_bootdirectdisk[depends] += "dosfstools
> -native:do_populate_sysroot \
>                                 syslinux-native:do_populate_sysroot \
>                                 parted-native:do_populate_sysroot \
>                                 mtools-native:do_populate_sysroot \
> -                               ${PN}:do_image_ext4 \
> +                               ${PN}:do_image_${ROOTFS_TYPE} \
>                                 "
>  
> -IMAGE_TYPEDEP_vmdk = "ext4"
> -IMAGE_TYPEDEP_vdi = "ext4"
> -IMAGE_TYPEDEP_qcow2 = "ext4"
> -IMAGE_TYPEDEP_hdddirect = "ext4"
> +IMAGE_TYPEDEP_vmdk = "${ROOTFS_TYPE}"
> +IMAGE_TYPEDEP_vdi = "${ROOTFS_TYPE}"
> +IMAGE_TYPEDEP_qcow2 = "${ROOTFS_TYPE}"
> +IMAGE_TYPEDEP_hdddirect = "${ROOTFS_TYPE}"
>  IMAGE_TYPES_MASKED += "vmdk vdi qcow2 hdddirect"
>  
> -ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.ext4"
> +ROOTFS_TYPE ?= "ext4"
> +ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${ROOTFS_TYPE}"
>  
>  # Used by bootloader
>  LABELS_VM ?= "boot"
> -- 
> 2.8.0.rc3
> 
>