Thanks for the guidelines. Initially the question is about ASLv2 in general (sorry for the incorrect use of 'ASF2.0'). I will have a read of the section.
Both driver versions are under ASLv2. I'll point out the lack of citation to the orginal authors, and let them decide what to do. It may already be covered by some other agreement. DL -----Original Message----- From: Chip Childers [mailto:chip.child...@sungard.com] Sent: 10 December 2012 2:50 PM To: cloudstack-dev@incubator.apache.org Subject: Re: Under ASF2.0 can I copyright refactored code without adding the original author's copyright notice? On Mon, Dec 10, 2012 at 6:09 AM, Donal Lafferty <donal.laffe...@citrix.com> wrote: > Does anyone have a link describing the attribution requirements for code > licensed under ASF v2.0? > > I noticed some driver code on another CloudOS project that appears to be a > derivative of a previous version of the same driver in that code base. The > comments are unchanged and the structure very similar. Both versions of the > driver are ASF v2.0, but the derivative work lacks the original author's > copyright notice. > > Is this legit under ASF 2.0? > > I'd have thought at the very least you had to carry forward notice from the > original work. Take a look at section 4 of the ASLv2 license itself [1]. It lays out the rules of derivative work for ASLv2 licensed software. In our case, we would probably do the following: 1 - Retain the original copyright notice(s) at the top of the file(s) in question 2 - Add a comment to header of the source code files in question, noting that they have been modified from the original source project's version. 3 - Include the relevant contents of the source project's NOTICE file in our own This all assumes that the code in question is licensed under ASLv2, but specifics may lead to a slightly different interpretation. Are you asking for the purpose of a CloudStack code submission? Or are you asking more generally about ASLv2? -chip [1] http://www.apache.org/licenses/LICENSE-2.0.html
