[Ctk-developers] CTK license and copyright

Stephen Aylward stephen.aylward at kitware.com
Sun Jul 10 16:41:16 EDT 2011 

Hi J2 and JC,

Thanks for the attention you're paying to this.  It is important to get right...

Regarding links in code to licenses:

The code we are releasing "now" will always be under the Apache 2.0
license.  That is, if someone were to copy CTK today, they are bound
to the apache 2.0 license when using that code.

If we change the license in the future (e.g., to a future apache
license version) it would only impact copies of the code released from
that point in time forward.   The license change cannot be applied to
copies of code that people had previously downloaded (e.g., code
downloaded today).

So, the link in the current code should always point directly to the
official repository/place for the apache2.0 license.  It specifically
should not point to a link that isn't guaranteed to always contain the
Apache2.0 license.

Hope this helps clarify things.

Thanks,
Stephen

On Sat, Jul 9, 2011 at 8:26 PM, Julien Finet <julien.finet at kitware.com> wrote:
> It seems that redirecting on ctk licence was giving more flexibility,
>  just in case we want to change to apache 3 at some point :-)
>
> Julien.
> On Jul 9, 2011, at 7:22 PM, Jean-Christophe Fillion-Robin
> <jchris.fillionr at kitware.com> wrote:
>
> To be consistent across all files, just pushed commit 0d0ec63a1c on my topic
> branch
>
>   Use http://www.apache.org/licenses/LICENSE-2.0.txt instead of
> http://www.commontk.org/LICENSE
>
> See
> https://github.com/jcfr/CTK/commit/0d0ec63a1ca05b1509926d3091ffa13ed08e903a
>
> Does it still make sens to keep the following URL:
> http://commontk.org/LICENSE ?
>
> Should that URL redirect to http://www.apache.org/licenses/LICENSE-2.0.txt
> ?
>
> Thanks
> Jc
>
>
> On Sat, Jul 9, 2011 at 7:14 PM, Jean-Christophe Fillion-Robin
> <jchris.fillionr at kitware.com> wrote:
>>
>> Hi Folks,
>>
>> I added a license on all *.h and *.cpp files.
>>
>> See https://github.com/jcfr/CTK/compare/master...fix-license-header
>>
>> //-----------------------------------
>> Note: I added the appropriate license using the following script to
>> determine the first author.
>>
>>  for i in `cat headers.txt`; \
>>   do a=`git log --follow --format="%an" $i  | tail -n 1`;\
>>   echo "$a --- $i"; \
>> done
>>
>> //-----------------------------------
>> Few questions:
>>
>> * What is the best practice regarding python script ? How should we
>> integrate the license ? docstring, ... ?
>>
>> * The files authored by Steve Pieper mention "Kitware, Inc." in the
>> copyright.
>>
>> Steve> I believe the license in these files is a byproduct of copy/paste.
>> Do you want to keep it like that of should we change it ? Would you prefer
>> "Isomics, Inc." instead ?
>>
>> To get the list of files authored by Steve Pieper, the following could be
>> done:
>>
>> for i in `find . -type f -path '.git' -prune -o -print`; \
>>   do a=`git log --follow --format="%an" $i  | tail -n 1`; echo "$a ---
>> $i"; \
>> done | ack Pieper
>>
>> Thanks
>> Jc
>>
>> On Sat, Jul 9, 2011 at 2:39 PM, Dominique Belhachemi <domibel at debian.org>
>> wrote:
>>>
>>> Hi Jc,
>>>
>>> The license/copyright information for the files below is missing. Do
>>> you want to add those information?
>>>
>>> Thanks
>>> Dominique
>>>
>>>
>>>
>>> ./Plugins/org.commontk.dah.core/Testing/Cpp/ctkDicomObjectLocatorCacheTest1.cpp
>>>
>>> ./Plugins/org.commontk.dah.core/Testing/Cpp/ctkDicomAppHostingTypesTest1.cpp
>>>
>>> ./Plugins/org.commontk.qtmobility.service/ctkQtMobilityServiceActivator_p.h
>>>
>>> ./Plugins/org.commontk.qtmobility.service/ctkQtMobilityServiceActivator.cpp
>>> ./Plugins/org.commontk.eventbus/ctkEventBusImpl_p.h
>>> ./Plugins/org.commontk.eventbus/ctkEventBusImpl.cpp
>>> ./Plugins/org.commontk.eventbus/ctkEventBusPlugin_p.h
>>> ./Plugins/org.commontk.eventbus/ctkEventHandlerWrapper_p.h
>>> ./Plugins/org.commontk.eventbus/ctkEventBusPlugin.cpp
>>
>> => Done
>>
>>>
>>> ./Libs/Visualization/VTK/Core/vtkLightBoxRendererManager.h
>>>
>>>
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/ctkVTKObjectEventsObserverTest1.cpp
>>>
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/vtkLightBoxRendererManagerTest1.cpp
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/ctkVTKObjectTestHelper.cpp
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/ctkVTKConnectionTest1.cpp
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/ctkVTKObjectTestHelper.h
>>> ./Libs/Visualization/VTK/Core/Testing/Cpp/ctkVTKObjectTest1.cpp
>>> ./Libs/Visualization/VTK/Core/vtkLightBoxRendererManager.cpp
>>
>> => Done
>>
>>
>>>
>>> ./Libs/Scripting/Python/Core/Python/qt/__init__.py
>>
>> => No license added ... not sure it if make sens to add one ...
>>
>>>
>>> ./Libs/Core/CMake/TestBFD/TestBFD.cpp
>>>
>>> ./Libs/Core/ctkCommandLineParser.cpp
>>>
>>> ./Libs/Core/Testing/Cpp/ctkBinaryFileDescriptorTestHelper.cpp
>>> ./Libs/Core/Testing/Cpp/ctkCommandLineParserTest1.cpp
>>> ./Libs/Core/ctkPimpl.h
>>> ./Libs/Core/ctkCommandLineParser.h
>>
>> => Done
>>
>>>
>>> ./Libs/DICOM/Widgets/ctkDICOMQueryWidget.cpp
>>> ./Libs/DICOM/Widgets/Testing/Cpp/ctkDICOMImageTest1.cpp
>>> ./Libs/DICOM/Core/ctkDICOMPersonName.h
>>> ./Libs/DICOM/Core/ctkDICOMDataset.cpp
>>> ./Libs/DICOM/Core/Testing/Cpp/ctkDICOMTest1.cpp
>>> ./Libs/DICOM/Core/Testing/Cpp/ctkDICOMTesterTest2.cpp
>>> ./Libs/DICOM/Core/Testing/Cpp/ctkDICOMTesterTest1.cpp
>>> ./Libs/DICOM/Core/ctkDICOMPersonName.cpp
>>
>> => Done
>>
>>>
>>> ./Applications/Testing/Cpp/ctkDICOMApplicationTest1.cpp
>>>
>>> ./Applications/ctkSimplePythonShell/ctkSimplePythonShellMain.cpp
>>> ./Applications/ctkSimplePythonShell/ctkSimplePythonQtDecorators.h
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedQInvokable.h
>>> ./Applications/ctkSimplePythonShell/ctkSimplePythonManager.h
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedQListOfVTKObject.h
>>
>> => Done
>>
>>>
>>> ./Applications/ctkSimplePythonShell/Testing/Python/derivedQWidgetTest.py
>>> ./Applications/ctkSimplePythonShell/Testing/Python/wrappedVTKSlotTest.py
>>>
>>> ./Applications/ctkSimplePythonShell/Testing/Python/wrappedQPropertyTest.py
>>> ./Applications/ctkSimplePythonShell/Testing/Python/vtkPythonSmoke.py
>>>
>>> ./Applications/ctkSimplePythonShell/Testing/Python/wrappedQInvokableTest.py
>>> ./Applications/ctkSimplePythonShell/Testing/Python/wrappedSlotTest.py
>>> ./Applications/ctkSimplePythonShell/Testing/Python/ctkWidgetsTest.py
>>>
>>> ./Applications/ctkSimplePythonShell/Testing/Python/wrappedVTKQInvokableTest.py
>>
>> => No license added ... not sure it if make sens to add one ...
>>
>>>
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedSlot.h
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedVTKSlot.h
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedQProperty.h
>>> ./Applications/ctkSimplePythonShell/Python/ctkSimplePythonShell.py
>>> ./Applications/ctkSimplePythonShell/ctkTestWrappedVTKQInvokable.h
>>
>> => Done
>>>
>>>
>>> On Sat, Jul 9, 2011 at 11:52 AM, Jean-Christophe Fillion-Robin
>>> <jchris.fillionr at kitware.com> wrote:
>>> > Hi Dominique,
>>> >
>>> > Please review the following topic:
>>> >   https://github.com/jcfr/CTK/compare/master...fix-license-header
>>> >
>>> > 788f261 Use URL to refer to ParaView license version 1.2
>>> > d4b55ab Fix indent in "Module" attribute associated with Paraview
>>> > license
>>> > header
>>> > 681c958 ctkBinaryFileDescriptor - Remove BWH Copyright year and fix
>>> > indent
>>> > 20cc5c8 Update license header associated with ctkVTKThumbnailViewTest1
>>> > 56041fa Update license header associated with PythonQtDecorators
>>> >
>>> > Thanks
>>> > Jc
>>> >
>>> >
>>> >
>>> > On Sat, Jul 9, 2011 at 11:35 AM, Stephen Aylward
>>> > <stephen.aylward at kitware.com> wrote:
>>> >>
>>> >> Hi Dominique,
>>> >>
>>> >> Thanks for asking and checking the files.
>>> >>
>>> >> All of CTK is suppose to be under the Apache 2.0 license.   If you
>>> >> find files with any other licence, please let us know.   We will fix
>>> >> them immediately.
>>> >>
>>> >> Regarding the holder of the copyright - I believe we decided that
>>> >> there would be no single copyright holder for CTK.  The files are held
>>> >> by the individual contributors and/or their institutions.   This is
>>> >> not how I would prefer things, because it creates an impression of
>>> >> complex ownership (whereas the Apache license assures the code will
>>> >> always be free for commercial and non-commercial use, and without
>>> >> patent restrictions to the best of our knowledge).
>>> >>
>>> >> The CTK members should probably re-address copyright assignments.   I
>>> >> suggest we have the assignment go to the Insight Software Consortium
>>> >> (ISC) or some other independent entity.   Hans Johnson at U of Iowa is
>>> >> the current president of the ISC, and he could ask the ISC board to
>>> >> accept CTK as an ISC-sponsored toolkit.   More info on the ISC is at:
>>> >> http://insightsoftwareconsortium.org/
>>> >>
>>> >> Stephen
>>> >>
>>> >>
>>> >>
>>> >> On Sat, Jul 9, 2011 at 11:14 AM, Dominique Belhachemi
>>> >> <domibel at debian.org> wrote:
>>> >> > Hi,
>>> >> >
>>> >> > I try to figure out whether or not the CTK source code can be
>>> >> > distributed. Now I am having a couple of questions.
>>> >> >
>>> >> > - Some files in the CTK repository are covered by the ParaView
>>> >> > license
>>> >> > version 1.2. Is it possible to add the referenced file
>>> >> > 'License_v1.2.txt' to the repository?
>>> >> >
>>> >> > - The Slicer license is missing as well. I found some statements
>>> >> > which
>>> >> > points to dead links:
>>> >> >  "See Doc/copyright/copyright.txt
>>> >> >  or http://www.slicer.org/copyright/copyright.txt for details."
>>> >> >
>>> >> > - Who is the main copyright holder of CTK?
>>> >> >
>>> >> > Thanks
>>> >> > Dominique
>>> >> > _______________________________________________
>>> >> > Ctk-developers mailing list
>>> >> > Ctk-developers at commontk.org
>>> >> > http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
>>> >> >
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >>
>>> >> ==============================
>>> >> Stephen R. Aylward, Ph.D.
>>> >> Director of Medical Imaging Research
>>> >> Kitware, Inc. - North Carolina Office
>>> >> http://www.kitware.com
>>> >> stephen.aylward (Skype)
>>> >> (919) 969-6990 x300
>>> >> _______________________________________________
>>> >> Ctk-developers mailing list
>>> >> Ctk-developers at commontk.org
>>> >> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
>>> >
>>> >
>>> >
>>> > --
>>> > +1 919 869 8849
>>> >
>>> >
>>> _______________________________________________
>>> Ctk-developers mailing list
>>> Ctk-developers at commontk.org
>>> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
>>
>>
>>
>> --
>> +1 919 869 8849
>>
>
>
>
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>
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>



-- 

==============================
Stephen R. Aylward, Ph.D.
Director of Medical Imaging Research
Kitware, Inc. - North Carolina Office
http://www.kitware.com
stephen.aylward (Skype)
(919) 969-6990 x300

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