Auto-Generating ChangeLog and AUTHORS for projects in a version tracking system?

2014-10-29 Thread Arne Babenhauserheide (IMK)
Dear GNU Hackers,


In quite a few guides I saw people suggest using the foreign automake
style to avoid having to create the required text files.

The goal of this email is to get more people to use the GNU style, so
the interface for understanding an autotools project becomes more
consistent again: GNU style should become standard for all guides.


Among the required files, NEWS is easy to create but cannot be guessed
automatically because it is intended for humans, and README is becoming
standard (again) due to most code hosting sites using it as the summary
page. AUTHORS and ChangeLog normally only contain information which
already available in most version tracking systems - and can be created
easily from that.

If autotools did this automatically, the barrier for using GNU style in
the autotools with a version tracking system would be much smaller: Just
write README and NEWS.


I initially planned to just send a small example script, but that
matured faster than I had expected, so you can now find it at


https://bitbucket.org/ArneBab/autochangelog/src/tip/create-or-update-changelog-and-authors.sh

If someone with git-foo could cleanup the git ChangeLog creation to
conform with the GNU ChangeLog standard, that script should be a good
working example.

The script only touches files which were created by the script or are
missing.


Best wishes,
Arne

PS: I initially sent this mail to the autoconf list. The original
discussion is at [1] and includes the gnulib script which roughly does
for git what I propose here. Doing this in automake would have the
advantage that all users benefit from the lower barrier of entry to the
consistent GNU style.

[1]: http://lists.gnu.org/archive/html/autoconf/2014-10/msg0.html

-- 
Doktorand
Gruppe: GHG

Raum: 435/410
Tel.: +49 721 608-22885
arne.babenhauserhe...@kit.edu

Karlsruher Institut für Technologie
IMK-ASF
Postfach 36 40
76021 Karlsruhe





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Re: Auto-Generating ChangeLog and AUTHORS for projects in a version tracking system?

2014-10-29 Thread Diego Elio Pettenò
Can't we just say that gnu-flavour automake is pointless and foreign should
be the default? Or am I too opinionated on that?

Diego Elio Pettenò — Flameeyes
flamee...@flameeyes.eu — http://blog.flameeyes.eu/

On 29 October 2014 15:27, Arne Babenhauserheide (IMK) <
arne.babenhauserhe...@kit.edu> wrote:

> Dear GNU Hackers,
>
>
> In quite a few guides I saw people suggest using the foreign automake
> style to avoid having to create the required text files.
>
> The goal of this email is to get more people to use the GNU style, so
> the interface for understanding an autotools project becomes more
> consistent again: GNU style should become standard for all guides.
>
>
> Among the required files, NEWS is easy to create but cannot be guessed
> automatically because it is intended for humans, and README is becoming
> standard (again) due to most code hosting sites using it as the summary
> page. AUTHORS and ChangeLog normally only contain information which
> already available in most version tracking systems - and can be created
> easily from that.
>
> If autotools did this automatically, the barrier for using GNU style in
> the autotools with a version tracking system would be much smaller: Just
> write README and NEWS.
>
>
> I initially planned to just send a small example script, but that
> matured faster than I had expected, so you can now find it at
>
>
>
> https://bitbucket.org/ArneBab/autochangelog/src/tip/create-or-update-changelog-and-authors.sh
>
> If someone with git-foo could cleanup the git ChangeLog creation to
> conform with the GNU ChangeLog standard, that script should be a good
> working example.
>
> The script only touches files which were created by the script or are
> missing.
>
>
> Best wishes,
> Arne
>
> PS: I initially sent this mail to the autoconf list. The original
> discussion is at [1] and includes the gnulib script which roughly does
> for git what I propose here. Doing this in automake would have the
> advantage that all users benefit from the lower barrier of entry to the
> consistent GNU style.
>
> [1]: http://lists.gnu.org/archive/html/autoconf/2014-10/msg0.html
>
> --
> Doktorand
> Gruppe: GHG
>
> Raum: 435/410
> Tel.: +49 721 608-22885
> arne.babenhauserhe...@kit.edu
>
> Karlsruher Institut für Technologie
> IMK-ASF
> Postfach 36 40
> 76021 Karlsruhe
>
>
>
>


Re: Auto-Generating ChangeLog and AUTHORS for projects in a version tracking system?

2014-10-29 Thread Eric Blake
On 10/29/2014 04:29 PM, Diego Elio Pettenò wrote:

[we tend to avoid top-posting on technical lists]

> Can't we just say that gnu-flavour automake is pointless and foreign should
> be the default? Or am I too opinionated on that?

For GNU projects, the 'gnu' flavor still makes sense, even if it could
use a little modernization such as easier automation of generating
ChangeLog from version control.  And while these days, automake is
probably used by more non-gnu projects (where 'foreign' may make more
sense) than GNU projects, that's still not a good reason to toggle the
default.  I like what the GNU Coding Standards represent, and deviating
from them deserves a mention in configure.ac to make it apparent that
you thought about it.

-- 
Eric Blake   eblake redhat com+1-919-301-3266
Libvirt virtualization library http://libvirt.org



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Re: Auto-Generating ChangeLog and AUTHORS for projects in a version tracking system?

2014-10-29 Thread Diego Elio Pettenò
On 29 October 2014 22:39, Eric Blake  wrote:
>
> [we tend to avoid top-posting on technical lists]


Sorry, me sleepy and not paying enough attention.

>
> > Can't we just say that gnu-flavour automake is pointless and foreign should
> > be the default? Or am I too opinionated on that?
>
> For GNU projects, the 'gnu' flavor still makes sense, even if it could
> use a little modernization such as easier automation of generating
> ChangeLog from version control.  And while these days, automake is
> probably used by more non-gnu projects (where 'foreign' may make more
> sense) than GNU projects, that's still not a good reason to toggle the
> default.  I like what the GNU Coding Standards represent, and deviating
> from them deserves a mention in configure.ac to make it apparent that
> you thought about it.


All good and well, but then I may have misunderstood Arne's original
point. If he's trying to get the GNU style to be "good enough" for
more projects, I think that's a moot point because as you said most
projects use it outside of GNU, and they would probably still find
enough issues with it that they wouldn't use it — and they would
probably still complain about bad autotools doing bad things because
they copy-paste from the wrong project.

If we're talking of making life easier for GNU maintainers, I have no
opinion because I have no stakes on the matter at all.

Diego Elio Pettenò — Flameeyes
flamee...@flameeyes.eu — http://blog.flameeyes.eu/



Re: Auto-Generating ChangeLog and AUTHORS for projects in a version tracking system?

2014-10-29 Thread Arne Babenhauserheide (IMK)
Hi Flameeyes,


Am 30.10.2014 00:43, schrieb Diego Elio Pettenò:
> All good and well, but then I may have misunderstood Arne's original
> point. If he's trying to get the GNU style to be "good enough"

That means I did not make my point clear enough. Second try:


I don’t want to change the GNU style. I want to have an easier way to
*adhere to* the existing GNU style by providing default tool support for
creating the ChangeLog and AUTHORS file from versiontracking systems.

Having NEWS, README, ChangeLog and AUTHORS in a release tarball makes a
lot of sense, and having NEWS and README also makes a lot of sense in a
version tracking system (I see that every time I try to use a project
which does not have them).

It’s just that when using a version tracking system, the ChangeLog and
AUTHORS file mostly duplicate information which is already in the
version tracking system.

This isn’t true for all projects. With complicated history a generated
ChangeLog can become useless and when committing patches from others and
forgetting to change the user, an autogenerated AUTHORS file can simply
be wrong. But for most projects they should be valid.


Additional motivation for this: If I want to teach someone to switch
from a simple Makefile to autotools, I have to talk about

- configure.ac (this is mostly copy-paste, adjusting name and version)
- Makefile.am (copy-paste from a similar project or adapt a Makefile)

- autoreconf -i; ./configure; make (“copy this into the README”)
- NEWS (“put the newest version at the top”)
- README (“describe how to use the project and how to contribute”)

- AUTHORS (“name all people who contributed”)
- ChangeLog (describe the changes in GNU style. This means:
  - first line: date and author:
https://www.gnu.org/prep/standards/html_node/Style-of-Change-Logs.html
  - changes indented.
- Start each changed file with a star (* file).
- optionally name the function.
- (a few special cases).
- Description after a colon and in following lines, also indented.
  - empty line between independent changes?


As you can see, how to write a conforming ChangeLog takes roughly as
much explanation as writing the configure.ac. And every new contributor
will have to learn how to do that (while the other topics are only
needed for the initial setup or for the maintainer).


Best wishes,
Arne

PS: I consider make distcheck as the gold standard for distributing
projects. I did not yet find a tool which gets close to matching that.
-- 
Doktorand
Gruppe: GHG

Raum: 435/410
Tel.: +49 721 608-22885
arne.babenhauserhe...@kit.edu

Karlsruher Institut für Technologie
IMK-ASF
Postfach 36 40
76021 Karlsruhe


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