Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Florent Rougon
Hello,

I have a few questions regarding public domain and DEP-5-compliant
debian/copyright files:

1. I have files in a program with the following copyright statement:

 # Copyright (C) 2002-2010, 2013, 2014  ...
 # Copyright (C) 2000  ...
 #
 # This program is in the public domain.

   but, as I understand it, public domain is the absence of copyright...
   right? Would it be better to replace this with:

 # Contributors: 2002-2010, 2013, 2014  ...
 #   2000  ...
 #
 # This program is in the public domain.

   ?

2. With the following stanza in debian/copyright (DEP-5):

 Files: examples/*
 License: public-domain

   I get two lintian warnings, the first of which being
   missing-field-in-dep5-copyright for the Copyright field IIRC, and the
   second one being 'missing-license-paragraph-in-dep5-copyright
   public-domain'. I can silence the first warning by adding:

 Copyright: These files have been put in the public domain.

   to the stanza (is this correct?). However, I am reluctant to write
   more things in the License field (or to add a stand-alone license
   paragraph) only to make lintian happy, since the code is just in the
   public domain with no restrictions whatsoever. Quoting
   https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/:

 When the License field in a paragraph has the short name
 public-domain, the remaining lines of the field /must/ explain
 exactly what exemption the corresponding files for that paragraph
 have from default copyright restrictions.

   but there are no particular exemptions applying here AFAICT... What
   do you suggest?

Thanks in advance for your answers, please Cc me as I am not subscribed.

-- 
Florent


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Re: Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Charles Plessy
Le Tue, Sep 16, 2014 at 11:18:11AM +0200, Florent Rougon a écrit :
 
 1. I have files in a program with the following copyright statement:
 
  # Copyright (C) 2002-2010, 2013, 2014  ...
  # Copyright (C) 2000  ...
  #
  # This program is in the public domain.
 
but, as I understand it, public domain is the absence of copyright...
right? Would it be better to replace this with:
 
  # Contributors: 2002-2010, 2013, 2014  ...
  #   2000  ...
  #
  # This program is in the public domain.
 
?
 
 2. With the following stanza in debian/copyright (DEP-5):
 
  Files: examples/*
  License: public-domain
 
I get two lintian warnings, the first of which being
missing-field-in-dep5-copyright for the Copyright field IIRC, and the
second one being 'missing-license-paragraph-in-dep5-copyright
public-domain'.

Dear Florent,

for the first point, please do not modify the upstream copyright statements
unless you have the permission from the authors: it is more likely to create
new confusions than to clarify the situation.

For the entry in the machine-readable copyright file, since the information
available suggests that the authors claim a copyright, I would just consider
that “This program is in the public domain.” is the license of the file:

Files: examples/*
Copyright: (C) 2002-2010, 2013, 2014 author A
   (C) 2000 author B
License: says-public-domain
 This program is in the public domain.

Not elegant, but accurate.

Have a nice day,

-- 
Charles Plessy
Debian Med packaging team,
http://www.debian.org/devel/debian-med
Tsurumi, Kanagawa, Japan


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Re: Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Ben Finney
Florent Rougon f.rou...@free.fr writes:

 1. I have files in a program with the following copyright statement:

  # Copyright (C) 2002-2010, 2013, 2014  ...
  # Copyright (C) 2000  ...
  #
  # This program is in the public domain.

but, as I understand it, public domain is the absence of copyright...
right?

Right. The quoted statement is self-contradictory. It asserts copyright,
and gives no grounds for the “public domain” claim.

It also fails to grant license for any of the DFSG freedoms. So by
strict interpretation of the statement in view of rigid application of
copyright law, the work is effectively non-free software.

 Would it be better to replace this with:

  # Contributors: 2002-2010, 2013, 2014  ...
  #   2000  ...
  #
  # This program is in the public domain.

?

Even in the absence of a copyright statement, copyright still obtains in
any Berne Convention signatory jurisdiction. Merely stating that a work
is in the public domain does not clearly make it so.

Since it's nearly impossible to remove copyright in a work under most
jurisdictions, the best course is to write the copyright statement to
clearly attribute the copyright holders and years of publication.

What is needed, for this work to clearly be free software, is for the
copyright holders to explicitly grant license in the work, saying
unambiguously what freedoms all recipients have.

Since the apparent intent is to:

* Show attribution of the copyright holders.
* Permit every recipient a very free license.

I would recommend the copyright holders re-release the work clearly
marked with a license grant of broad attribution-only license
conditions; the Apache Software Foundation License 2.0
URL:http://directory.fsf.org/wiki/License:Apache2.0 is a good one IMO.

 Thanks in advance for your answers, please Cc me as I am not
 subscribed.

Done. I hope this helps.

-- 
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  `\  it ceases to be serious when people laugh.” —George Bernard Shaw |
_o__)  |
Ben Finney


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Re: Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Riley Baird
 I would recommend the copyright holders re-release the work clearly
 marked with a license grant of broad attribution-only license
 conditions; the Apache Software Foundation License 2.0
 URL:http://directory.fsf.org/wiki/License:Apache2.0 is a good one IMO.

If they really want public domain, though, then CC-0 is good [1].
(However, it isn't OSI approved because it explicitly does not grant
patent/trademark rights.)

[1] https://creativecommons.org/publicdomain/zero/1.0/


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Simple doubt about section to use

2014-09-16 Thread Eriberto Mota
Hi,

I am reviewing the package lutris (ITP #754129). From upstream[1]:

---
Lutris is an open source gaming platform for GNU/Linux. It makes
gaming on Linux easier by taking care of managing, installing and
providing optimal settings for games.

Lutris does not sell games, you have to provide your own copy of the
games unless they are Open Source or Freeware. The games can be
installed anywhere you want on your system, the tool does not impose
anything.
---

My doubt is if is a main or contrib program. I think in main, because
lutris can survive running DFSG games only. However, we have the
possibility to install proprietary and commercial games too. So, what
is the better section for lutris?

Thanks a lot in advance.

Regards,

Eriberto

[1] https://github.com/lutris/lutris


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Re: Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Ian Jackson
Ben Finney writes (Re: Public domain and DEP-5-compliant debian/copyright):
 Florent Rougon f.rou...@free.fr writes:
  1. I have files in a program with the following copyright statement:
   # Copyright (C) 2002-2010, 2013, 2014  ...
   # Copyright (C) 2000  ...
   #
   # This program is in the public domain.
 but, as I understand it, public domain is the absence of copyright...
 right?
 
 Right. The quoted statement is self-contradictory. It asserts copyright,
 and gives no grounds for the “public domain” claim.
 
 It also fails to grant license for any of the DFSG freedoms. So by
 strict interpretation of the statement in view of rigid application of
 copyright law, the work is effectively non-free software.

This is nonsense.  Courts are not computers.  When interpreting legal
documents such as licences, they read the intent of of the author.

In this case the author's intent is clear: the author wants to
disclaim the monopolies granted by copyright law.  The statement is to
be read as a permissive licence.  So no-one is in any danger of being
sued by the (purported) copyrightholder.

Obviously it would be better if the authors fixed this technical
defect, but it has no significant practical consequences.

Ian.


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Re: Simple doubt about section to use

2014-09-16 Thread Ian Jackson
Eriberto Mota writes (Simple doubt about section to use):
 I am reviewing the package lutris (ITP #754129). From upstream[1]:

This seems like a package manager.

 My doubt is if is a main or contrib program. I think in main, because
 lutris can survive running DFSG games only. However, we have the
 possibility to install proprietary and commercial games too. So, what
 is the better section for lutris?

At DC14 we had a conversation about the fact that at the moment it is
not possible for a user to say only once, when installing Debian, that
they only want free software.

I think the best situation would be if lutris could be made to offer
for installation only DFSG games, unless contrib or non-free is
enabled.  If you can do that then lutris could be in main, IMO.

Perhaps you could do this with a lutris-nonfree-library package in
contrib.

I assume that lutris is already written not to connect to any game
library without permission.

Ian.


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Re: Simple doubt about section to use

2014-09-16 Thread Eriberto
Thanks Ian!

Pierre, you need think about what to do.

Cheers,

Eriberto


2014-09-16 13:46 GMT-03:00 Ian Jackson ijack...@chiark.greenend.org.uk:
 At DC14 we had a conversation about the fact that at the moment it is
 not possible for a user to say only once, when installing Debian, that
 they only want free software.

 I think the best situation would be if lutris could be made to offer
 for installation only DFSG games, unless contrib or non-free is
 enabled.  If you can do that then lutris could be in main, IMO.

 Perhaps you could do this with a lutris-nonfree-library package in
 contrib.

 I assume that lutris is already written not to connect to any game
 library without permission.


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Re: Simple doubt about section to use

2014-09-16 Thread Eriberto
2014-09-16 14:53 GMT-03:00 Pierre Rudloff cont...@rudloff.pro:
 Unfortunately, Lutris does not provide any information about the games'
 licence.
 So I guess we should add it to contrib ?

I think that it is the better way.

Eriberto


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Re: Simple doubt about section to use

2014-09-16 Thread Pierre Rudloff
Unfortunately, Lutris does not provide any information about the games' 
licence.

So I guess we should add it to contrib ?

Regards,

Le 16/09/2014 19:18, Eriberto a écrit :

Thanks Ian!

Pierre, you need think about what to do.

Cheers,

Eriberto


2014-09-16 13:46 GMT-03:00 Ian Jackson ijack...@chiark.greenend.org.uk:

At DC14 we had a conversation about the fact that at the moment it is
not possible for a user to say only once, when installing Debian, that
they only want free software.

I think the best situation would be if lutris could be made to offer
for installation only DFSG games, unless contrib or non-free is
enabled.  If you can do that then lutris could be in main, IMO.

Perhaps you could do this with a lutris-nonfree-library package in
contrib.

I assume that lutris is already written not to connect to any game
library without permission.



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Re: Simple doubt about section to use

2014-09-16 Thread Ian Jackson
Pierre Rudloff writes (Re: Simple doubt about section to use):
 Unfortunately, Lutris does not provide any information about the games' 
 licence.
 So I guess we should add it to contrib ?

I think so, I'm afraid.

Maybe there is part of it that doesn't involve the library feature, or
in other ways download non-free stuff, which could go in main.

Ian.


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Re: Public domain and DEP-5-compliant debian/copyright

2014-09-16 Thread Ben Finney
Ian Jackson ijack...@chiark.greenend.org.uk writes:

 This is nonsense. Courts are not computers. When interpreting legal
 documents such as licences, they read the intent of of the author.

We would hope so, yes. They also take into account the intent of the
*current* copyright holder.

Courts are also not infallible guardians of the public interest; a
hostile future copyright holder can wield the lack of a clear grant of
license to cause a lot more trouble for recipients than would be the
case if the license grant were clear.

We have ample instances of that having been done in the past, enough to
be cautious in treating ambiguous and contradictory copyright
statements.

 In this case the author's intent is clear: the author wants to
 disclaim the monopolies granted by copyright law. The statement is to
 be read as a permissive licence. So no-one is in any danger of being
 sued by the (purported) copyrightholder.

On this I can't see why you modify “copyright holder”. You think this is
an effective divestment of copyright in the work? In all Berne
Convention jurisdictions where Debian recipients will operate?

I don't. It seems clear to me that “This work is in the public domain”
is *not* an effective way to cause a work to have no copyright holder.
That work is still restricted under copyright law, despite the intent of
that statement.

 Obviously it would be better if the authors fixed this technical
 defect

I'm glad that's a point of agreement.

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_o__)   opposite view.” —Douglas Adams |
Ben Finney


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Re: Simple doubt about section to use

2014-09-16 Thread Mark Weyer
On Tue, Sep 16, 2014 at 11:10:53AM -0300, Eriberto Mota wrote:
 Hi,
 
 I am reviewing the package lutris (ITP #754129). [...]

 My doubt is if is a main or contrib program. I think in main, because
 lutris can survive running DFSG games only. However, we have the
 possibility to install proprietary and commercial games too. So, what
 is the better section for lutris?

I agree. And I strongly disagree with Ian's suggestion to demote it to contrib.
As I understand it, lutris is usable with software in main via the ScummVM
runner and the two ScummVM games in main. And lutris only installs stuff if
the user explicitly asks it to. So the possibility to work with non-DSFG
content is not a problem. Unless Debian also decides to move to contrib:
- Any compiler which does not check for DSFG-freeness of the code it compiles.
- Any emulator which does not likewise check the thing emulated.
- Any web browser which does not decline to show non-DSFG-free content.

Disclaimer: I am not a member of the Debian project.

Best regards,

  Mark Weyer


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