flex-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Erik de Bruin <e...@ixsoftware.nl>
Subject Re: [FlexJS] Drawing API
Date Tue, 09 Sep 2014 18:39:12 GMT
Thanks Alex! The way you explain it helps me to (finally) understand how
this stuff fits together.

Would you mind if I put that information in the Wiki, for future reference
and instruction?

EdB



On Tue, Sep 9, 2014 at 7:48 PM, Alex Harui <aharui@adobe.com> wrote:

>
>
> On 9/9/14 9:51 AM, "Erik de Bruin" <erik@ixsoftware.nl> wrote:
> >Not to poke my nose to deep into what is shaping up to be one of those
> >nice
> >and informative legal threads, but I think I may have a relevant question:
> >if some bit of code is AL, is there a 'legal' way to rip it apart and put
> >it back together again, improved and upgraded and then use it for the
> >project?
> I do not claim to have authority to give a final answer, which is why we
> usually end up asking on legal-discuss, but my mental model is this:
>
> -Every line of code was written by somebody, and therefore copyrighted by
> that somebody (or their employer).
> -The Apache License says you can bundle those lines of code into some
> larger code base and modify or add to them.
> -Copyright law says that after some amount of modification, you own the
> lines you changed/added and somebody owns the lines you didn't touch.
>
> IMO, the law sort of stops there, then policy starts to take over:
>
> -There is an unwritten policy that says that Apache projects do not "take"
> code.  It must be "donated".
> -Apache projects are free to use code from other projects within the ASF.
> -AL-licensed code not outside the ASF is considered third-party.
> -Things not donated can be bundled as third-party.
> -Third-party headers should remain intact and not modified to the standard
> ASF header.
> -Copyrights in NOTICE files in bundled AL works get aggregated in the
> top-level NOTICE file
>
> And then there is a convention we learned about during the last installer
> release.
> -The LICENSE file should provide pointers to third-party works
>
> So, IMO, the answer to your question is "yes", but then we have to handle
> it properly afterwards.  If you take some code and totally rewrite it, I
> believe it is then all yours.  This would be the case when porting code
> from one language to another.
> It gets murky if you re-implement some functionality already in the same
> language.  For MD5Stream, I took the code from a third party, left the
> public function headers and some constants intact and rewrote the method
> bodies.  When done, I felt that there was no creative content left from
> the original so I considered it mine and "donated" it to the ASF.  In
> briefly looking at the code Om borrowed, it looked like lots of it was
> from the original so I would think it needs third-party handling.  IMO, if
> you think the end result is going to have a fair amount of original code
> in it, I would start from a copy of the original file and modify it, as
> opposed to starting a blank file and copying third-party code into it.
>
> -Alex
>
>
>


-- 
Ix Multimedia Software

Jan Luykenstraat 27
3521 VB Utrecht

T. 06-51952295
I. www.ixsoftware.nl

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message