[yocto] Using A Proprietary Closed License Inside A Layer & Its Recipes

[Joshua Watt]

On Fri, 2017-06-16 at 11:00 -0700, Khem Raj wrote:
> On 6/16/17 6:14 AM, Joshua Watt wrote:
> > On Fri, 2017-06-16 at 09:12 +0000, Thomas Thorne wrote:
> > > > > Is it only possible to use the special
> > > > > LICENSE = "CLOSED"
> > > > > license for licenses not already placed in the main license
> > > 
> > > directory?
> > > > 
> > > > Yes, there's special-case logic for 'CLOSED'.  Can you not just
> > > > use
> > > 
> > > that for your internal pieces?  It's special-cased in a few
> > > places.
> > >  
> > > I can use CLOSED.  I just wanted to ensure I was following the
> > > recommended or best practice. 
> > >  
> > > As this is an internal thing it should be OK for now.  I was
> > > wondering what would happen if a closed licenses was updated, as
> > > nothing would currently note the md5 change. 
> > 
> > FWIW: We created a proprietary license file called files/common-
> > licenses/company.txt in our proprietary layer, then added the
> > following
> > to layer.conf:
> > 
> >  COMPANY_COMMON_LICENSES := '${@os.path.normpath("${LAYERDIR}/files
> > /com
> > mon-licenses")}'
> >  BB_HASHBASE_WHITELIST_append = " COMPANY_COMMON_LICENSES"
> > 
> > Then a recipe can get the "standard" proprietary license by doing:
> > 
> >  LIC_FILES_CHKSUM =
> > "file://${COMPANY_COMMON_LICENSES}/company.txt;md5=9b1139fa1fcb8690
> > 69db
> > eecca44350a5"
> > 
> > It works pretty well and also make it clear what license the recipe
> > is
> > under. I believe that the BB_HASHBASE_WHITELIST was necessary at
> > the
> > time to prevent changes in the project working path from causing a
> > full
> > rebuild of the all proprietary packages and so that the sstate
> > signatures would match regardless, but I might be wrong about it
> > being
> > necessary.
> 
> is this still the case with latest master ?

I don't actually know, and I don't think I should hazard a guess. We
made this change all the way back in 1.6 (which was embarrassingly
recent for us) and I haven't bother to check (mostly because I forgot
about it until now).

Also as an aside, I think someone would probably tell me to use
BB_HASHBASE_WHITELIST += "COMPANY_COMMON_LICENSES" these days instead
of _append. When I was younger I had trouble knowing when to use one or
the other ;)

>