Re: [Lensfun-users] New release of lensfun?

[Roman Lebedev]

On Thu, Dec 8, 2016 at 9:18 PM, Alexander Gruber  wrote:
> Hello together,
>
> I know that someone should not ask for ETA but as the last release of
> lensfun is now more than a year old I'm brave enough to do so. Is a new
> release planned anytime? As many programs rely on the stable releases of
> lensfun (e.g. darktable) their lens databases don't get updated till a
> new version is released. Many programs also don't seem to integrate the
> db update mechanism.

https://github.com/macports/macports-ports/commit/e9444ad6474543fe70f78e041227d100938deacb
macport for lensfun should now provide that upgrade script again.
hopefully our next darktable DMG will contain it.

> Thanks!
>
> Regards
>
> Alexander Gruber
Roman.

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Re: [Lensfun-users] New release of lensfun?

[Ulrich Pegelow]

Am 11.12.2016 um 15:52 schrieb Sebastian Kraft:
> On 11.12.2016 12:56, Roman Lebedev wrote:
>>> That's what we were thinking. Maybe Alexander can be a bit more specific
>>> about which platform he is working on and which application was missing
>>> support for the updates?
>> darktable on osx.
>> https://redmine.darktable.org/issues/11352
>> There is no python3, at least not in macports, so naturally, the
>> script does not work.
>> https://github.com/macports/macports-ports/blob/3eac5dbd0a35816dd3eb35bd058203af35da22bc/graphics/lensfun/Portfile#L42-L43
>>
>
> Roman and Ulrich, what is your opinion as an application developer how
> Lensfun can help to solve this problem?
>
> Is it necessary to improve the database update scripts? Or do you prefer
> to have frequent releases with an updated database?
>

As Roman said, it's of course all a question of available resources. 
Judging from the expectation level of a "normal" (Linux) user I'd assume 
that they would profit from more frequent releases. That's what most 
applications do if they have something new. I would not call myself a 
normal user but it has been before today that I realized something like 
lensfun-update-data does exist :)

Ulrich

>
>>> I think that the scripts are not working on Windows, but AFAIK there is
>>> no Windows application with Lensfun support, yet.
>> That would be surprising.
>>
>
> Well, not working means that the scripts are not prepared for a Windows
> folder structure and Python is not available on Windows by default.
>
> Sebastian
>
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Re: [Lensfun-users] New release of lensfun?

[Roman Lebedev]

On Sun, Dec 11, 2016 at 5:52 PM, Sebastian Kraft
 wrote:
> On 11.12.2016 12:56, Roman Lebedev wrote:
>>> That's what we were thinking. Maybe Alexander can be a bit more specific
>>> about which platform he is working on and which application was missing
>>> support for the updates?
>> darktable on osx.
>> https://redmine.darktable.org/issues/11352
>> There is no python3, at least not in macports, so naturally, the
>> script does not work.
>> https://github.com/macports/macports-ports/blob/3eac5dbd0a35816dd3eb35bd058203af35da22bc/graphics/lensfun/Portfile#L42-L43
>>
>
> Roman and Ulrich, what is your opinion as an application developer how
> Lensfun can help to solve this problem?

https://github.com/macports/macports-ports/commit/e9444ad6474543fe70f78e041227d100938deacb#commitcomment-20147948
Will see what is the reason in this case.
But there is python3 on osx.

> Is it necessary to improve the database update scripts? Or do you prefer
> to have frequent releases with an updated database?

As for the general question, both ways seem nice, and both are limited by
the free time available.

>>> I think that the scripts are not working on Windows, but AFAIK there is
>>> no Windows application with Lensfun support, yet.
>> That would be surprising.
>>
>
> Well, not working means that the scripts are not prepared for a Windows
> folder structure and Python is not available on Windows by default.
No, i understand that. My comment was more about "AFAIK there is no
Windows application with Lensfun support, yet."

> Sebastian
Roman.

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Re: [Lensfun-users] New release of lensfun?

[Sebastian Kraft]

On 11.12.2016 12:56, Roman Lebedev wrote:
>> That's what we were thinking. Maybe Alexander can be a bit more specific
>> about which platform he is working on and which application was missing
>> support for the updates?
> darktable on osx.
> https://redmine.darktable.org/issues/11352
> There is no python3, at least not in macports, so naturally, the
> script does not work.
> https://github.com/macports/macports-ports/blob/3eac5dbd0a35816dd3eb35bd058203af35da22bc/graphics/lensfun/Portfile#L42-L43
>

Roman and Ulrich, what is your opinion as an application developer how 
Lensfun can help to solve this problem?

Is it necessary to improve the database update scripts? Or do you prefer 
to have frequent releases with an updated database?


>> I think that the scripts are not working on Windows, but AFAIK there is
>> no Windows application with Lensfun support, yet.
> That would be surprising.
>

Well, not working means that the scripts are not prepared for a Windows 
folder structure and Python is not available on Windows by default.

Sebastian

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Re: [Lensfun-users] New release of lensfun?

[Ulrich Pegelow]

Am 11.12.2016 um 12:50 schrieb Sebastian Kraft:
>> I'm sorry, i'm probably missing something obvious here, but wasn't
>> that already fixed by adding  lensfun-update-data  tool?
>>
>
> That's what we were thinking. Maybe Alexander can be a bit more specific
> about which platform he is working on and which application was missing
> support for the updates?
>
> I think that the scripts are not working on Windows, but AFAIK there is
> no Windows application with Lensfun support, yet.
>

Doesn't seem that they are supported well on Linux either. Here with 
openSUSE 13.2:

Traceback (most recent call last):
   File "/usr/bin/lensfun-update-data", line 46, in 
 import lensfun
ImportError: No module named 'lensfun'

There is no lensfun.py in neither of my installed packages:

lensfun-devel-0.3.2-26.1.x86_64
lensfun-doc-0.3.2-26.1.x86_64
lensfun-data-0.3.2-26.1.noarch
liblensfun0-0.3.1-12.1.x86_64
liblensfun1-0.3.2-26.1.x86_64

Ulrich



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Re: [Lensfun-users] New release of lensfun?

[Roman Lebedev]

On Sun, Dec 11, 2016 at 2:50 PM, Sebastian Kraft
 wrote:
> On 11.12.2016 12:44, Roman Lebedev wrote:
>>
>>> 1) Application developers take the latest stable release and bundle it
>>> with the backported database from master which can be downloaded here:
>>> http://lensfun.sourceforge.net/db/version_1.tar.bz2
>> So each app that uses lensfun should bundle it?
>> JFYI distributions really don't like such bundling, *especially* fedora...
>>
>
> Yes, that would only make sense for packaging Windows or OSX
> applications. Linux users should use the update scripts. That's why I
> would prefer this option.

>>
>> I'm sorry, i'm probably missing something obvious here, but wasn't
>> that already fixed by adding  lensfun-update-data  tool?
>>
>
> That's what we were thinking. Maybe Alexander can be a bit more specific
> about which platform he is working on and which application was missing
> support for the updates?
darktable on osx.
https://redmine.darktable.org/issues/11352
There is no python3, at least not in macports, so naturally, the
script does not work.
https://github.com/macports/macports-ports/blob/3eac5dbd0a35816dd3eb35bd058203af35da22bc/graphics/lensfun/Portfile#L42-L43

> I think that the scripts are not working on Windows, but AFAIK there is
> no Windows application with Lensfun support, yet.
That would be surprising.

> Sebastian
Roman.

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Re: [Lensfun-users] New release of lensfun?

[Sebastian Kraft]

On 11.12.2016 12:44, Roman Lebedev wrote:
>
>> 1) Application developers take the latest stable release and bundle it
>> with the backported database from master which can be downloaded here:
>> http://lensfun.sourceforge.net/db/version_1.tar.bz2
> So each app that uses lensfun should bundle it?
> JFYI distributions really don't like such bundling, *especially* fedora...
>

Yes, that would only make sense for packaging Windows or OSX 
applications. Linux users should use the update scripts. That's why I 
would prefer this option.

>
> I'm sorry, i'm probably missing something obvious here, but wasn't
> that already fixed by adding  lensfun-update-data  tool?
>

That's what we were thinking. Maybe Alexander can be a bit more specific 
about which platform he is working on and which application was missing 
support for the updates?

I think that the scripts are not working on Windows, but AFAIK there is 
no Windows application with Lensfun support, yet.

Sebastian


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Re: [Lensfun-users] New release of lensfun?

[Roman Lebedev]

On Sun, Dec 11, 2016 at 2:33 PM, Sebastian Kraft
 wrote:
> Hello Alexander,
>
>> I know that someone should not ask for ETA but as the last release of
>> lensfun is now more than a year old I'm brave enough to do so. Is a new
>> release planned anytime? As many programs rely on the stable releases of
>> lensfun (e.g. darktable) their lens databases don't get updated till a
>> new version is released.
>
> The Lensfun API in the master branch is currently undergoing some
> refactoring and is far away from a new stable release. It would be
> possible to create a bugfix release of the release_0.3.x branch.
> However, in July it was decided that new lens profiles only go to the
> master branch and new lens profiles are new features which should not go
> to a bugfix release.
>
> I think this is a good occasion to start a discussion how we can keep
> the database in a long-term development branch and a stable release
> branch synchronized. There are a few possibilities:

> 1) Application developers take the latest stable release and bundle it
> with the backported database from master which can be downloaded here:
> http://lensfun.sourceforge.net/db/version_1.tar.bz2
So each app that uses lensfun should bundle it?
JFYI distributions really don't like such bundling, *especially* fedora...

> 2) The lensfun team "squash merges" the backported database into the the
> release branch before a bugfix release. This will create an ugly history
> of database commits in the release branch but will keep the data bundled
> within an official release.

Doesn't that contradict the reasoning for NOT updating lens db for non-master?

(copied)
> However, in July it was decided that new lens profiles only go to the
> master branch and new lens profiles are new features which should not go
> to a bugfix release.

> How do you and the others think about that?

I'm sorry, i'm probably missing something obvious here, but wasn't
that already fixed by adding  lensfun-update-data  tool?

> Sebastian
Roman.

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