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

[Andre McCurdy]

On Thu, Mar 24, 2016 at 1:45 PM, Alexander Kanevskiy <kad at kad.name> wrote:
> On Thu, Mar 24, 2016 at 10:32 PM, Andre McCurdy <armccurdy at gmail.com> wrote:
>>
>> 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.
>
> you can easily chain them.
> " hddimg.sha256sum hddimg.xz hddimg.xz.sha256sum"

OK. Great. Didn't realise that was going to work!

> --
> br, Alexander Kanevskiy