[OE-core] [PATCH] image_types: use compress framework to produce checksums for images

[Andre McCurdy]

On Thu, Mar 24, 2016 at 1:16 PM, Alexander D. Kanevskiy <kad at kad.name> wrote:
> Existing compress framework for producing various compressed versions
> of images is powerfull enough to be extended for other uses, e.g. to
> convert types of images.
>
> It is possible to use it also to produce image checksums at the time
> of image generation. This commit adds support for all supported
> at the moment coreutils hashing algorithms: md5, sha1, sha224,
> sha256, sha384 and sha512
>
> Usage:
> IMAGE_FSTYPES_append = " hddimg.sha256sum"

I guess a common requirement is for hashes of the compressed images,
not only the uncompressed image.

> Signed-off-by: Alexander D. Kanevskiy <kad at kad.name>
> ---
>  meta/classes/image_types.bbclass | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
> index 22719ad..3e98024 100644
> --- a/meta/classes/image_types.bbclass
> +++ b/meta/classes/image_types.bbclass
> @@ -259,13 +259,19 @@ IMAGE_TYPES = " \
>      wic wic.gz wic.bz2 wic.lzma \
>  "
>
> -COMPRESSIONTYPES = "gz bz2 lzma xz lz4 sum"
> +COMPRESSIONTYPES = "gz bz2 lzma xz lz4 sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum"
>  COMPRESS_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
>  COMPRESS_CMD_gz = "gzip -f -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
>  COMPRESS_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
>  COMPRESS_CMD_xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_THREADS} --check=${XZ_INTEGRITY_CHECK} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.xz"
>  COMPRESS_CMD_lz4 = "lz4c -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
>  COMPRESS_CMD_sum = "sumtool -i ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sum ${JFFS2_SUM_EXTRA_ARGS}"
> +COMPRESS_CMD_md5sum = "md5sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.md5sum"
> +COMPRESS_CMD_sha1sum = "sha1sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha1sum"
> +COMPRESS_CMD_sha224sum = "sha224sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha224sum"
> +COMPRESS_CMD_sha256sum = "sha256sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha256sum"
> +COMPRESS_CMD_sha384sum = "sha384sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha384sum"
> +COMPRESS_CMD_sha512sum = "sha512sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha512sum"
>  COMPRESS_DEPENDS_lzma = "xz-native"
>  COMPRESS_DEPENDS_gz = ""
>  COMPRESS_DEPENDS_bz2 = "pbzip2-native"
> --
> 2.7.4
>
> --
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