[OE-core] [PATCH 2/2] wic: plugins: rawcopy: Add support to download the raw image from a http server

[Otavio Salvador]

On Mon, Dec 11, 2017 at 3:30 AM, Kevin Hao <kexin.hao at windriver.com> wrote:
> On Sun, Dec 10, 2017 at 10:53:43PM -0200, Otavio Salvador wrote:
>> On Sat, Dec 9, 2017 at 12:45 AM, Kevin Hao <kexin.hao at windriver.com> wrote:
>> > Some firmwares are critical for the basic functions of the board, and may
>> > be used by the bootloader. Due to the license issue, we can't integrate
>> > it. But we do need it when creating a booting image by using WIC.
>> > So add the support for the WIC to download a raw file from http
>> > server and write it to a specific part. In order to restrict the
>> > downloading behaviour, we introduce a "WKS_ALLOW_DOWNLOAD" variable and
>> > only do the downloading when this variable is set.
>> >
>> > Signed-off-by: Kevin Hao <kexin.hao at windriver.com>
>>
>> This does not make much sense.
>>
>> It does not allow to be downloaded? so build system can download it
>> and use it as a normal artifact.
>
> In some cases, it doesn't make sense to do so. Because:
> a) These firmwares are just raw binary files, they don't need any build or
>    process. They are only useful when we try to create a bootable image.

In any case, keep them on the download cache is a good thing as it
avoids build issues due network instability and avoids as well
undesired file content changes.

> b) There firmwares may be licensed under a proprietary license. We may not
>    integrate them to a fully open source build system. But we do want to provide
>    an easy way for the customer to build a bootable image.

Sure and I agree, but this is what layers are for.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750