Re: Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2017-04-11 Thread mmrri...@gmail.com


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Re: Epoch usage conventions (was Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-05-04 Thread Guillem Jover
On Fri, 2013-04-05 at 13:09:51 +0100, Ian Jackson wrote:
 Guillem Jover writes (Epoch usage conventions (was Re: R 3.0.0 and required 
 rebuilds of all reverse Depends: of R)):
  Well, I strongly disagree that in general using epochs for packaging
  mistakes is a good practice (and I've thought so even before Ubuntu
  existed). The main purpose of epochs is to be able to handle mistakes
  or changes in the version numbering itself. Say upstream resets their
  versioning from v450 to 0.0.0, or from date based 20130404 to 0.0.0
  (although the packager could have avoided that by prefixing with 0.),
  or if they used something like 1.210 and they meant 1.2.10 (svgalib),
  or a package takes over another's name (git).
 
 I agree entirely with what Guillem says.
 
  Also, introducing an epoch where there was none in an NMU should be
  frowned upon, unfortunately I've seen multiple instances of these in
  the recent past, something I'd be very upset if it happened to any of
  the packages I maintain.
 
 I wonder if this should be explicitly stated in the dev ref.

Yeah, I guess, I'll try to come up with a patch in the next weeks
(added to my TODO list).

Thanks.
Guillem


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-23 Thread Goswin von Brederlow
On Fri, Apr 19, 2013 at 12:16:11PM +0300, Niko Tyni wrote:
 On Thu, Apr 18, 2013 at 10:56:34AM +0200, Goswin von Brederlow wrote:
  On Tue, Apr 02, 2013 at 02:28:23PM -0700, Russ Allbery wrote:
   Niko Tyni nt...@debian.org writes:
   
FWIW, I've done ABI-incompatible uploads of perl to experimental in the
past without changing the perlapi-* virtual package name or the libperl
SONAME.  The aim was to experiment with different configuration options,
particularly 64-bit integers and 128-bit long doubles.
   
I certainly didn't support upgrades from those versions to the same
extent as I'd have done for unstable. OTOH, the packages were pretty
close to uninstallable on any non-minimal systems anyway, as we didn't
offer corresponding rebuilt XS modules in experimental.
   
   Oh, that's a good point.  Yes, I hadn't thought about that specific case
   for testing ABI breakage in experimental.
  
  But then that simply is a broken upload. It will break horribly if you
  install the experimental perl but keep other perl packages from sid.
 
 Well, it wasn't installable with perl packages in sid at the time due to a
 major version upgrade, which is why I was experimenting with incompatible
 ABI changes in the first place. (This was around perl/5.12.0-1 or so.)

That was OK then. Just in general one should think about such things.

Note: This isn't an attack of you or that upload. You/perl just have
the horrible luck of being used as an example.
 
  You should have set the perlapi-* to include -experimental or
  something to make it differ from sid. Having the perlapi-* provides
  and depends makes this simple.
 
 First, this was against the policy at the time (since fixed with
 #579457.) Second, the ABI changes would also have required an extra
 libperl SONAME change with the implied NEW processing. That's
 too much overhead IMO.

Yeah, NEW queue processing can be bad. But if it realy is just
experimenting and the dependencies prevent mixed setups then I
wouldn't take the SONAME so serious. The SONAME change is there so old
and new stuff can coexist and migrate over time. That isn't applicable
to such an experimental situation.
 
  Imho experimental packages should be made with the hope that they
  could enter sid in the future. Sure they are for experimenting. But
  say the experiment is successfull shouldn't the package go to sid? If
  you have to redesign them at that point you will just introduce new
  bugs at that point and restart the testing process again.
 
 The experiment in this case was seeing if the test suite passes on
 all architectures or not. It did not because long doubles are weird on
 powerpc, so I reverted the change. I then uploaded the next try (again,
 to experimental of course) without changing the perlapi-* or the SONAME.
 
 I still think that expecting full-blown ABI change handling for iterations
 like this in experimental is too much.

Totaly. Not for every iteration anyway. As long as mixing/breaking sid
is prevented with an SONAME change or dependencies that is fine. I
think ftp-master would kill you if every experimental upload had to go
through NEW.


As a side note: What you did probably shouldn't have been using
experimental at all. This should have gone to the long proposed build
me this package buildd extension. All you wanted (it sounds like) was
to compile the package and see the results of the built time test
suite. It would be nice if someone would work on implementing this
idea. That way maintainers could upload sources for test builds on
selective archs.

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-23 Thread Goswin von Brederlow
On Fri, Apr 19, 2013 at 09:53:05AM +, Sune Vuorela wrote:
 On 2013-04-18, Goswin von Brederlow goswin-...@web.de wrote:
  Oh, that's a good point.  Yes, I hadn't thought about that specific case
  for testing ABI breakage in experimental.
 
  But then that simply is a broken upload. It will break horribly if you
  install the experimental perl but keep other perl packages from sid.
 
 Welcome to experimental. Stuff might break, stuff might be deliberately
 broken, ... 
 
 I might also not properly manage abi changes in libraries in
 experimental, especially when it is me packaging snapshots.
 
 /Sune

I sure hope you mean breakages between different experimental
versions. Not breakages compared to stable/testing/unstable versions.

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-23 Thread Vincent Lefevre
On 2013-04-23 14:23:57 +0200, Goswin von Brederlow wrote:
 On Fri, Apr 19, 2013 at 09:53:05AM +, Sune Vuorela wrote:
  On 2013-04-18, Goswin von Brederlow goswin-...@web.de wrote:
   Oh, that's a good point.  Yes, I hadn't thought about that specific case
   for testing ABI breakage in experimental.
  
   But then that simply is a broken upload. It will break horribly if you
   install the experimental perl but keep other perl packages from sid.
  
  Welcome to experimental. Stuff might break, stuff might be deliberately
  broken, ... 
  
  I might also not properly manage abi changes in libraries in
  experimental, especially when it is me packaging snapshots.
  
  /Sune
 
 I sure hope you mean breakages between different experimental
 versions. Not breakages compared to stable/testing/unstable versions.

You should also consider breakage between an experimental version
and a future unstable version.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-19 Thread Niko Tyni
On Thu, Apr 18, 2013 at 10:56:34AM +0200, Goswin von Brederlow wrote:
 On Tue, Apr 02, 2013 at 02:28:23PM -0700, Russ Allbery wrote:
  Niko Tyni nt...@debian.org writes:
  
   FWIW, I've done ABI-incompatible uploads of perl to experimental in the
   past without changing the perlapi-* virtual package name or the libperl
   SONAME.  The aim was to experiment with different configuration options,
   particularly 64-bit integers and 128-bit long doubles.
  
   I certainly didn't support upgrades from those versions to the same
   extent as I'd have done for unstable. OTOH, the packages were pretty
   close to uninstallable on any non-minimal systems anyway, as we didn't
   offer corresponding rebuilt XS modules in experimental.
  
  Oh, that's a good point.  Yes, I hadn't thought about that specific case
  for testing ABI breakage in experimental.
 
 But then that simply is a broken upload. It will break horribly if you
 install the experimental perl but keep other perl packages from sid.

Well, it wasn't installable with perl packages in sid at the time due to a
major version upgrade, which is why I was experimenting with incompatible
ABI changes in the first place. (This was around perl/5.12.0-1 or so.)

 You should have set the perlapi-* to include -experimental or
 something to make it differ from sid. Having the perlapi-* provides
 and depends makes this simple.

First, this was against the policy at the time (since fixed with
#579457.) Second, the ABI changes would also have required an extra
libperl SONAME change with the implied NEW processing. That's
too much overhead IMO.

 Imho experimental packages should be made with the hope that they
 could enter sid in the future. Sure they are for experimenting. But
 say the experiment is successfull shouldn't the package go to sid? If
 you have to redesign them at that point you will just introduce new
 bugs at that point and restart the testing process again.

The experiment in this case was seeing if the test suite passes on
all architectures or not. It did not because long doubles are weird on
powerpc, so I reverted the change. I then uploaded the next try (again,
to experimental of course) without changing the perlapi-* or the SONAME.

I still think that expecting full-blown ABI change handling for iterations
like this in experimental is too much.
-- 
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-19 Thread Sune Vuorela
On 2013-04-18, Goswin von Brederlow goswin-...@web.de wrote:
 Oh, that's a good point.  Yes, I hadn't thought about that specific case
 for testing ABI breakage in experimental.

 But then that simply is a broken upload. It will break horribly if you
 install the experimental perl but keep other perl packages from sid.

Welcome to experimental. Stuff might break, stuff might be deliberately
broken, ... 

I might also not properly manage abi changes in libraries in
experimental, especially when it is me packaging snapshots.

/Sune


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-18 Thread Goswin von Brederlow
On Sun, Apr 07, 2013 at 09:29:19PM +0800, Thomas Goirand wrote:
 On 04/02/2013 09:18 PM, Goswin von Brederlow wrote:
  Actually that hits another problem. Namely that the epoch does not
  appear in the binary package filename. While wheezy would have 1.2.3-1
  and unstable would have 1:1.2.3-1 they both produce the same
  foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
  the files won't be bit identical and checksums will differ. The
  archive can not handle that case.
 The fact that the epoch doesn't appear in the file name is the most
 annoying part of it. Perhaps at some point, we could change that fact,
 and solve the problem, maybe for Jessie?
 
 Thomas

Why wait? Well, ok, better not add changes to dpkg right now. :)

Has anyone tried patching dpkg to keep the epoch in the deb filename?
Anything break?

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-18 Thread Goswin von Brederlow
On Tue, Apr 02, 2013 at 02:28:23PM -0700, Russ Allbery wrote:
 Niko Tyni nt...@debian.org writes:
 
  FWIW, I've done ABI-incompatible uploads of perl to experimental in the
  past without changing the perlapi-* virtual package name or the libperl
  SONAME.  The aim was to experiment with different configuration options,
  particularly 64-bit integers and 128-bit long doubles.
 
  I certainly didn't support upgrades from those versions to the same
  extent as I'd have done for unstable. OTOH, the packages were pretty
  close to uninstallable on any non-minimal systems anyway, as we didn't
  offer corresponding rebuilt XS modules in experimental.
 
 Oh, that's a good point.  Yes, I hadn't thought about that specific case
 for testing ABI breakage in experimental.

But then that simply is a broken upload. It will break horribly if you
install the experimental perl but keep other perl packages from sid.
You should have set the perlapi-* to include -experimental or
something to make it differ from sid. Having the perlapi-* provides
and depends makes this simple.

Imho experimental packages should be made with the hope that they
could enter sid in the future. Sure they are for experimenting. But
say the experiment is successfull shouldn't the package go to sid? If
you have to redesign them at that point you will just introduce new
bugs at that point and restart the testing process again.

But that might just be me.

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-18 Thread Sven Joachim
On 2013-04-18 10:48 +0200, Goswin von Brederlow wrote:

 On Sun, Apr 07, 2013 at 09:29:19PM +0800, Thomas Goirand wrote:
 On 04/02/2013 09:18 PM, Goswin von Brederlow wrote:
  Actually that hits another problem. Namely that the epoch does not
  appear in the binary package filename. While wheezy would have 1.2.3-1
  and unstable would have 1:1.2.3-1 they both produce the same
  foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
  the files won't be bit identical and checksums will differ. The
  archive can not handle that case.
 The fact that the epoch doesn't appear in the file name is the most
 annoying part of it. Perhaps at some point, we could change that fact,
 and solve the problem, maybe for Jessie?
 
 Thomas

 Why wait? Well, ok, better not add changes to dpkg right now. :)

 Has anyone tried patching dpkg to keep the epoch in the deb filename?

Yes, Guillem did so one year ago but reverted it.

 Anything break?

Quite a few things, see the thread on
http://lists.debian.org/debian-dpkg/2012/04/threads.html#00024.

Cheers,
   Sven


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epoch in filenames for packages (was: Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-18 Thread Ansgar Burchardt
On 04/18/2013 10:48, Goswin von Brederlow wrote:
 On Sun, Apr 07, 2013 at 09:29:19PM +0800, Thomas Goirand wrote:
 On 04/02/2013 09:18 PM, Goswin von Brederlow wrote:
 Actually that hits another problem. Namely that the epoch does not
 appear in the binary package filename. While wheezy would have 1.2.3-1
 and unstable would have 1:1.2.3-1 they both produce the same
 foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
 the files won't be bit identical and checksums will differ. The
 archive can not handle that case.

It handles it by rejecting the later upload.

 The fact that the epoch doesn't appear in the file name is the most
 annoying part of it. Perhaps at some point, we could change that fact,
 and solve the problem, maybe for Jessie?
[...]
 Has anyone tried patching dpkg to keep the epoch in the deb filename?
 Anything break?

[1] and [2] include at least dpkg-genchanges and dpkg-source breaking.

  [1] http://bugs.debian.org/551323
  [2] http://bugs.debian.org/645895

Ansgar


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Re: epoch in filenames for packages (was: Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-18 Thread Goswin von Brederlow
On Thu, Apr 18, 2013 at 11:04:11AM +0200, Ansgar Burchardt wrote:
 On 04/18/2013 10:48, Goswin von Brederlow wrote:
  On Sun, Apr 07, 2013 at 09:29:19PM +0800, Thomas Goirand wrote:
  On 04/02/2013 09:18 PM, Goswin von Brederlow wrote:
  Actually that hits another problem. Namely that the epoch does not
  appear in the binary package filename. While wheezy would have 1.2.3-1
  and unstable would have 1:1.2.3-1 they both produce the same
  foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
  the files won't be bit identical and checksums will differ. The
  archive can not handle that case.
 
 It handles it by rejecting the later upload.

I wonder what would happen if one uploaded a foo_1.2.3-1_amd64.deb
with a new epoch but same hash. :)

  The fact that the epoch doesn't appear in the file name is the most
  annoying part of it. Perhaps at some point, we could change that fact,
  and solve the problem, maybe for Jessie?
 [...]
  Has anyone tried patching dpkg to keep the epoch in the deb filename?
  Anything break?
 
 [1] and [2] include at least dpkg-genchanges and dpkg-source breaking.
 
   [1] http://bugs.debian.org/551323
   [2] http://bugs.debian.org/645895
 
 Ansgar

Both of those are part of dpkg so they should have been patched too. I
ment does anything outside of dpkg break. But that is probably covered
in the thread mentioned in the last mail.

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-16 Thread Goswin von Brederlow
On Sat, Apr 06, 2013 at 01:08:49PM +0900, Charles Plessy wrote:
 Le Sun, Mar 31, 2013 at 07:02:15PM -0400, Scott Kitterman a écrit :
  
  Depends: r-base-core (= 3.0.0~20130327) , r-base-core ( 4) 
  
  or you could have an API virtual package:
  
  r-base-api-3.0 
 
 Hi Dirk and everybody,
 
 since we already have a substitution variable in most of the R packages
 (R:Depends), I think that we can use it to address the problem.
 
 First, let's define the problem: R broke backwards compatibility a couple of
 times since it has been packaged.  Rebuilding packages is usually done 
 swiftly,
 but there remains the problem of transitions to Testing and updates on the
 users computers.  There is usually a gap of some years between breakages,
 so we do not want an over-engeneered solution.
 
 I like the idea of an api virtual package, as it requires little work from the
 parties involved and solves most of the problem.  (The exception being that
 partial upgrades from Wheezy to Jessie will not be supported, but this is also
 the case in the current situation).

In short: That is not an exception but THE intention. It's the whole
point of having an api virtual package.

In long: The R package breaks compatibility in such a way that a
partial upgrade simply won't be functional. You either update them all
or none. Till now installing any package compiles against a newer R
API would pull in the newer r-base-core package to fullfill its
version requirement but would not force old R packages already
installed to also be updated. This leads to procken packages on
partial update. Introducing the api virtual package will enforce that
all R packages will be compiled against the same R API, against a
compatible r-base-core. Installing one package compiled against the
new R will force apt/aptitude to also update all the already installed
R packages, which is what is required.

  - /usr/share/R/debian/r-cran.mk, which is used in most R packages and 
 produces
the R:Depends substitution variable, would make packages depend on the 
 r-api
virtual package instead of requiring a version equal or superior to the 
 version
of r-base-core used at build time.

It might be enough to only depend on the api or you might need both,
the api virtual package and a versioned depends for a minimum version.
But that depends on the circumstances. Design it so that it is easy to
have both and so that you don't miss updating the minimum version when
required.
 
  - Next time R breaks backwards compatibility, Dirk would need to modify the
Provides: line in debian/control and voilà, the new R core package can not
be installed on a system without removing or upgrading the R library 
 packages
that were built with the old API.

It might make sense to have a single file r-api-virtual-version (or
so) in the source and generate the Provides: field and
/usr/share/R/debian/r-cran.mk from that single source.
 
 Let's discuss the details on #704805
 
 Have a nice week-end,

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-15 Thread Vincent Lefevre
On 2013-04-04 21:08:45 +0200, Philipp Kern wrote:
 On Thu, Apr 04, 2013 at 05:14:54PM +0200, Vincent Lefevre wrote:
  I wonder whether there are packaged extensions […]
 
 So you didn't actually look. EOT from me, it's wasting my time.

Sorry, I meant why instead of whether. As I've said in my message,
packaged extensions are useless IMHO, because Firefox can handle
upgrades gracefully.

   Multiple transitions then get entangled.
  I don't understand what you mean here. The freeze doesn't prevent
  that from happening in unstable.
 
 Our current freeze rules that apply to unstable prevent that in a
 social, not technical way.

So, transitions could be avoided in a social way. No need for a freeze.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-15 Thread Neil McGovern
On Mon, Apr 15, 2013 at 04:22:14PM +0200, Vincent Lefevre wrote:
 So, transitions could be avoided in a social way. No need for a freeze.
 

Let's see how well that works - look at the very first message in this
thread.

Neil
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-15 Thread Vincent Lefevre
On 2013-04-15 15:31:38 +0100, Neil McGovern wrote:
 On Mon, Apr 15, 2013 at 04:22:14PM +0200, Vincent Lefevre wrote:
  So, transitions could be avoided in a social way. No need for a freeze.
 
 Let's see how well that works - look at the very first message in this
 thread.

My point is that: whether there is a freeze or not, it doesn't work
well.

On the other hand, one could argue that without the freeze system,
it could have worked better: here the maintainer may have thought
that because of the freeze, uploading the package wouldn't have
hurt the next release.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-07 Thread Thomas Goirand
On 04/02/2013 09:18 PM, Goswin von Brederlow wrote:
 Actually that hits another problem. Namely that the epoch does not
 appear in the binary package filename. While wheezy would have 1.2.3-1
 and unstable would have 1:1.2.3-1 they both produce the same
 foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
 the files won't be bit identical and checksums will differ. The
 archive can not handle that case.
The fact that the epoch doesn't appear in the file name is the most
annoying part of it. Perhaps at some point, we could change that fact,
and solve the problem, maybe for Jessie?

Thomas


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-07 Thread Jonathan Nieder
Holger Levsen wrote:
 On Montag, 1. April 2013, Steve M. Robbins wrote:

 Rather than accept the harm, surely the release team could simply roll
 back the upload in some manner?

 As I understand it, only by introducing an epoch in the package version. 

Or by using the 9.0.0+really0.99-1 version convention, which IMHO for
is way better for cases of temporary backtracking like this.

But in this particular case, leaving it alone in unstable would be
better still.  The release is not that far away, and it is not
impossible to maintain packages in testing even when the package in
sid has moved on.

Regards,
Jonathan


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-06 Thread Andreas Tille
On Sat, Apr 06, 2013 at 01:08:49PM +0900, Charles Plessy wrote:
 
 I like the idea of an api virtual package, as it requires little work from the
 parties involved and solves most of the problem.

I do not only like this but IMHO it is perfectly needed (as for any
other language system we are packaging.
 
  - /usr/share/R/debian/r-cran.mk, which is used in most R packages and 
 produces
the R:Depends substitution variable, would make packages depend on the 
 r-api
virtual package instead of requiring a version equal or superior to the 
 version
of r-base-core used at build time.

As I said previously in bug #659163 when R:Depends was introduced to regard some
R api based on the expression

R --version | head -n1 | perl -ne 'print / +([0-9]\.[0-9]+\.[0-9])/'

which is independant from a certain package.  I do regard the currently
implemented solution as an unneeded restriction.  Compared to the
current implementation and the original suggestion in #659163 the r-api
suggestion above is certainly the cleanest and best possible solution
and I'm really in favour of this.

  - Next time R breaks backwards compatibility, Dirk would need to modify the
Provides: line in debian/control and voilà, the new R core package can not
be installed on a system without removing or upgrading the R library 
 packages
that were built with the old API.

+1 (or even +2)

 Let's discuss the details on #704805

In http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=704805#10 Dirk Eddelbuettel 
wrote:

 I am not (yet?) sold:
 
   -- there is only one provider or r-api-*

I can not parse whether this should be a question or a problem.
 
   -- we actually do have a greater than relation

This is the current implementation and this is not really helpful.

   -- the version numbers already solve this

No, they do not.  An API level is something else than a version number.

   -- this was needed three times in ten years

There is no point in properly solving a problem only because it does not
happen very frequently.  It can perfectly happen that it occures in a
bad timing and a clean solution is always the goal we should approach
inside Debian.

 I think we are overengineering this.   

I'm in great favour of the suggestion of Charles and IMHO it is far from
overengineering - just following the usual standard procedure as it is
implemented in all comparable situations in Debian.

Kind regards

   Andreas.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-05 Thread Julian Gilbey
On Sun, Mar 31, 2013 at 11:45:15AM -0500, Dirk Eddelbuettel wrote:
 
 A new major release R 3.0.0 will come out on Wednesday April 3rd, as usual
 according the the release plan and announcements [1]. 
 
 It contains major internal changes [2] and requires rebuilds of all R
 packages.  As I usually do, I started packaging pre-releases and rc
 candidates [3] based on March 24, 27 and 30 snapshots.
 
 Michael Rutter, who tirelessly backports (most of) my Debian R packages to
 Ubuntu, has also made builds of these R packages [4].  
 
 As for unstable, we have an issue as essentially all reverse-dependencies
 that are R packages will need to be rebuilt [5]. On testing, I get for
 158 packages from `apt-cache rdepends r-base-core | grep -c r-cran-`. 

I am a little unclear what is required; is a binary rebuild
sufficient, or is some change in the source code necessary?  If the
former, would it not be better just to ask the buildd administrators
for a binary rebuild as opposed to having a new source version just
for this?

   Julian


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-05 Thread Charles Plessy
Le Fri, Apr 05, 2013 at 08:53:52AM +0100, Julian Gilbey a écrit :
 On Sun, Mar 31, 2013 at 11:45:15AM -0500, Dirk Eddelbuettel wrote:
 
 I am a little unclear what is required; is a binary rebuild
 sufficient, or is some change in the source code necessary?  If the
 former, would it not be better just to ask the buildd administrators
 for a binary rebuild as opposed to having a new source version just
 for this?

Hi Julian,

for architecture-dependant packages, a binary rebuild is sufficient.  For
arch-independant packages, this facility is not available.  In addition, with
the Freeze, many of us had refrained from updating their packages, so this need
for rebuilds is a good opportunity for update now that the relase is getting
near.

Cheers,

-- 
Charles Plessy
Tsurumi, Kanagawa, Japan


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Epoch usage conventions (was Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-05 Thread Ian Jackson
Guillem Jover writes (Epoch usage conventions (was Re: R 3.0.0 and required 
rebuilds of all reverse Depends: of R)):
 Well, I strongly disagree that in general using epochs for packaging
 mistakes is a good practice (and I've thought so even before Ubuntu
 existed). The main purpose of epochs is to be able to handle mistakes
 or changes in the version numbering itself. Say upstream resets their
 versioning from v450 to 0.0.0, or from date based 20130404 to 0.0.0
 (although the packager could have avoided that by prefixing with 0.),
 or if they used something like 1.210 and they meant 1.2.10 (svgalib),
 or a package takes over another's name (git).

I agree entirely with what Guillem says.

 Also, introducing an epoch where there was none in an NMU should be
 frowned upon, unfortunately I've seen multiple instances of these in
 the recent past, something I'd be very upset if it happened to any of
 the packages I maintain.

I wonder if this should be explicitly stated in the dev ref.

Ian.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-05 Thread Charles Plessy
Le Sun, Mar 31, 2013 at 07:02:15PM -0400, Scott Kitterman a écrit :
 
 Depends: r-base-core (= 3.0.0~20130327) , r-base-core ( 4) 
 
 or you could have an API virtual package:
 
 r-base-api-3.0 

Hi Dirk and everybody,

since we already have a substitution variable in most of the R packages
(R:Depends), I think that we can use it to address the problem.

First, let's define the problem: R broke backwards compatibility a couple of
times since it has been packaged.  Rebuilding packages is usually done swiftly,
but there remains the problem of transitions to Testing and updates on the
users computers.  There is usually a gap of some years between breakages,
so we do not want an over-engeneered solution.

I like the idea of an api virtual package, as it requires little work from the
parties involved and solves most of the problem.  (The exception being that
partial upgrades from Wheezy to Jessie will not be supported, but this is also
the case in the current situation).

 - /usr/share/R/debian/r-cran.mk, which is used in most R packages and produces
   the R:Depends substitution variable, would make packages depend on the r-api
   virtual package instead of requiring a version equal or superior to the 
version
   of r-base-core used at build time.

 - Next time R breaks backwards compatibility, Dirk would need to modify the
   Provides: line in debian/control and voilà, the new R core package can not
   be installed on a system without removing or upgrading the R library packages
   that were built with the old API.

Let's discuss the details on #704805

Have a nice week-end,

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


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-04 Thread Tollef Fog Heen
]] Vincent Lefevre 

 On 2013-04-02 21:06:30 +0200, Tollef Fog Heen wrote:
  Just to expand slightly on this, the problem you're both poking at is
  that during a freeze, our incentives are directed towards fixing RC bugs
  (because then we can release, which means we can then do what we prefer
  to, which (as you can see in the unconstrained periods), is to package
  new software, new upstream versions and so on).  New code tends to be
  buggier than older, debugged code, so it's no surprise that we get more
  RC bugs in the non-freeze periods..
 
 In general, bug-fix releases (which are also blocked by the freeze)
 don't introduce new bugs.

Sometimes, they do, and except during this last stage of the freeze,
it's not been particularly hard to get bug fixes into wheezy.  As I
have written elsewhere, I've had unblock requests go through less than
five minutes after I filed the request.  It's a little bit of extra
book-keeping, sure, but it's not very onerous.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-04 Thread Philipp Kern
On Wed, Apr 03, 2013 at 10:29:26PM +0200, Vincent Lefevre wrote:
 It seems that most reverse dependencies for iceweasel are l10n
 packages and extensions, so that one can consider them as part
 of the upgrade. The remaining dependencies seem to have a form
 like iceweasel | www-browser. So, what would be wrong?

That the extensions also need to be updated, for the very least.

 Not also that in practice, many (most?) users will use a backport.
 So, if some real reverse dependency would be affected by a change
 in the iceweasel version, it rather needs to be fixed now.

I presume most users of a backport don't use packaged extensions at all.

 I mean the update of the package in testing. A RC bug is a way to
 block transitions from happening there; a freeze is not needed.

Multiple transitions then get entangled.

Kind regards
Philipp Kern


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-04 Thread Vincent Lefevre
On 2013-04-04 16:23:33 +0200, Philipp Kern wrote:
 On Wed, Apr 03, 2013 at 10:29:26PM +0200, Vincent Lefevre wrote:
  It seems that most reverse dependencies for iceweasel are l10n
  packages and extensions, so that one can consider them as part
  of the upgrade. The remaining dependencies seem to have a form
  like iceweasel | www-browser. So, what would be wrong?
 
 That the extensions also need to be updated, for the very least.

If they are really maintained, they should probably have been
updated already (that's one way to make sure that security
fixes are applied). Otherwise it would be better to drop them.

  Not also that in practice, many (most?) users will use a backport.
  So, if some real reverse dependency would be affected by a change
  in the iceweasel version, it rather needs to be fixed now.
 
 I presume most users of a backport don't use packaged extensions at all.

I wonder whether there are packaged extensions (and whether they
could conflict with extensions installed by the user). Automatic
handling by Firefox/Iceweasel works well.

  I mean the update of the package in testing. A RC bug is a way to
  block transitions from happening there; a freeze is not needed.
 
 Multiple transitions then get entangled.

I don't understand what you mean here. The freeze doesn't prevent
that from happening in unstable.

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Epoch usage conventions (was Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-04 Thread Guillem Jover
On Wed, 2013-04-03 at 20:18:44 +0200, Philipp Kern wrote:
 On Wed, Apr 03, 2013 at 03:33:30PM +0600, Andrey Rahmatullin wrote:
  On Tue, Apr 02, 2013 at 09:55:09PM +0200, Philipp Kern wrote:
And not, we do not have epochs to temporarily downgrade a package
after a botched upload.
   c.f. imagemagick
   I'm pretty sure we do.
  It seems we usually upload a 2really1 package to fix that particular
  mistake without introducing an epoch.
 
 Which is a new custom that comes from Ubuntu who cannot reasonably use
 epochs. We can.

Well, I strongly disagree that in general using epochs for packaging
mistakes is a good practice (and I've thought so even before Ubuntu
existed). The main purpose of epochs is to be able to handle mistakes
or changes in the version numbering itself. Say upstream resets their
versioning from v450 to 0.0.0, or from date based 20130404 to 0.0.0
(although the packager could have avoided that by prefixing with 0.),
or if they used something like 1.210 and they meant 1.2.10 (svgalib),
or a package takes over another's name (git).

Epochs are a necessary evil, but they are distracting and clutter the
version string, and if they can be avoided (by way of a 2really1 scheme)
then IMO that should be prefered, beucase that's just temporary, usually
until next Debian release. Also as it can be seen on the archive, once
a version has been tainted (!?), uploaders tend to lower their
resistance to increase the epoch even further.

Also, introducing an epoch where there was none in an NMU should be
frowned upon, unfortunately I've seen multiple instances of these in
the recent past, something I'd be very upset if it happened to any of
the packages I maintain.

Something else I disagree is good practice is bumping an epoch to win
the automatic upgradability against a downstream distribution version
or 3rd-party package repository, because that makes us dependant on
their practices.

Some recentish examples of what _seems_ like gratuituous epoch
introduction (there's probably many others):

  audit (NMU upload revert)
  clang (NMU upload revert, although with maintainer approval, because
 supposedly the package will get merged into llvm, but that
 only holds as long as the clang package disappears)
  file (NMU upload revert)
  fonts-ipafont-nonfree-jisx0208 (just for a tarball repack)
  ppl (no clear reason from the changelog?)
  usbutils (simply switching from 0.87 to 001 would have been fine)

Not to mention things like fonts-sil-gentium with its date-base epoch.

Something people seem to forget or be unware of, is that binary
packages can contain a different version than the source they come
from, so if you really need to bump the epoch for (say) a shared
library package, you could do it just for that one, which would
disappear when changing package name on the next SOVERSION bump. Or
that when renaming the source and package names the epoch can be reset.

Thanks,
Guillem


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Re: Epoch usage conventions (was Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-04 Thread Andrey Rahmatullin
On Thu, Apr 04, 2013 at 08:09:27PM +0200, Guillem Jover wrote:
 Also as it can be seen on the archive, once
 a version has been tainted (!?), uploaders tend to lower their
 resistance to increase the epoch even further.
But once an epoch has been added, there is (arguably?) no problems with
increasing it further.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-04 Thread Philipp Kern
On Thu, Apr 04, 2013 at 05:14:54PM +0200, Vincent Lefevre wrote:
 I wonder whether there are packaged extensions […]

So you didn't actually look. EOT from me, it's wasting my time.

  Multiple transitions then get entangled.
 I don't understand what you mean here. The freeze doesn't prevent
 that from happening in unstable.

Our current freeze rules that apply to unstable prevent that in a
social, not technical way.

Kind regards
Philipp Kern


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Re: Epoch usage conventions (was Re: R 3.0.0 and required rebuilds of all reverse Depends: of R)

2013-04-04 Thread Clint Adams
On Fri, Apr 05, 2013 at 01:00:52AM +0600, Andrey Rahmatullin wrote:
 But once an epoch has been added, there is (arguably?) no problems with
 increasing it further.

You're not really increasing ugliness in that case, but you are
still screwing with any extant versioned relationships.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-02 13:37:59 -0500, Peter Samuelson wrote:
 [Vincent Lefevre]
  I disagree. If the freeze occurred only once (almost) all RC bugs
  were fixed, there would be (almost) no delay. I suspect that the
  length of the freeze is due to the fact that the freeze occurred
  while too many RC bugs were already open.
 
 Agreed: in July 2012, many - too many - RC bugs were already open.
 So when, in your estimation, would have been a better time to freeze?

It depends on the rate these RC bugs are fixed. Only RC bugs affecting
testing should be considered here. The question is then: were there
many bugs affecting testing? If yes, why? Isn't the goal of unstable
to detect RC bugs (in particular) before packages enter testing? If
this fails too often, then something is wrong here.

Moreover, perhaps there should be different steps in the freeze.
Packages with a good history w.r.t. RC bugs (e.g. no RC bugs, or
RC bugs quickly fixed) should not be concerned by an initial freeze.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Andrey Rahmatullin
On Tue, Apr 02, 2013 at 09:55:09PM +0200, Philipp Kern wrote:
  And not, we do not have epochs to temporarily downgrade a package
  after a botched upload.
 
 c.f. imagemagick
 
 I'm pretty sure we do.
It seems we usually upload a 2really1 package to fix that particular
mistake without introducing an epoch.


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CUT and stable releases Was: Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Svante Signell
On Tue, 2013-04-02 at 17:24 +0100, Adam D. Barratt wrote:
 On 02.04.2013 16:35, Svante Signell wrote:
  The best solution would be having unstable _never_ frozen, at the 
  cost
  of another repository during the freeze period. This was proposed 
  some
  time ago, see 
  http://lists.debian.org/debian-devel/2013/01/msg00273.html
  repeated here for convenience:
 
 That's a contentious definition of best. You also appear to have 
 somewhat missed the point of my response to that original message, i.e. 
 URL:http://lists.debian.org/debian-devel/2013/01/msg00274.html

As I replied to you in
http://lists.debian.org/debian-devel/2013/01/msg00275.html
I did _not_ propose to remove testing!

  i) experimental being really for new stuff
  ii) unstable unfrozen always:
  - stable+1: if no freeze - testing after xx days as before
  - stable+1=unstable frozen at freeze time: if during freeze - 
  testing
  - stable
  - stable+2: if in freeze - unstable
 
  And the frozen unstable/testing repository could cover a subset of 
  the
  packages in unstable: The good ones. That would effectively reduce 
  the
  freeze period.
 
 I'm still struggling to see how this is fundamentally different from 
 the frozen suite which testing was introduced to replace, more than 
 a dozen years ago. As per my earlier message referenced above, see 
 URL:http://lists.debian.org/debian-devel/2000/08/msg00906.html for 
 some detail of why frozen didn't work.

It's not fundamentally different, but still different. And we can
easily achieve CUT too, see below :)

  As proposed in the thread the idea should be written down at
  http://wiki.debian.org/ReleaseProposals
  Since this idea is new as far as I could see it's time do do that.
 
 FSVO new.

I think it is new in the sense it adds a new dimension to the problem.
I'm repeating the proposal again here, a little differently compared to
before:

t is current time.
dt is the delay for packages to go from unstable to testing.
T0 is the time for a freeze leading to next release.
dT is the time from freeze to next stable release.
T1 is the time the last stable release was made.
RC0, RC1, ... are release candidates for next stable.

- experimental: 
as before: experimental(t)

- unstable:
never frozen = unstable(t): Here we have the CUT :) And packahing of new
upstream releases are not hindered by the freeze period.

- testing:
Case 1) No release: testing(t) = unstable(t-dt)
Case 2) Release: testing(T0) = new archive called e.g.
next_release_RC0, then RC1, ... until the last RC bug has been
squeezed out leading to next stable.

- stable: 
Case 1: No release: stable(t) = previous_release(T1) (of course with
security updates, etc.)
Case 2: Release: stable(t) = testing(T0+dT) (see above).

Of course a lot of details have to be squeezed out but the above covers
the main idea. What do you think?


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-02 09:50:23 -0700, Russ Allbery wrote:
 Vincent Lefevre vinc...@vinc17.net writes:
 
  There are various problems with experimental, in particular dependencies
  are not necessarily listed,
 
 Huh?  I have no clue what you could possibly be talking about, unless
 you're just saying that some packages in experimental are critically
 buggy.

This was said in some Debian mailing-list. Not sure whether this
is done on purpose or this was meant to be a bug.

  and upgrade from an experimental package is not supported (it generally
  works, but the maintainer doesn't have to take that into account).
 
 This is a bizarre statement to me.  Why would you not take that into
 account as a maintainer?  I always have for everything I've uploaded to
 experimental.

IIRC, this was about a package that took care of an upgrade in its
postinst script (something like that), but the maintainer didn't
consider upgrade from experimental versions.

There was also this bug:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=544480

which was closed immediately (and has never been fixed), just because
some package from experimental was installed. The user is required to
correct the installation manually.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-02 21:53:08 +0200, Philipp Kern wrote:
 Vincent,
 
 am Tue, Apr 02, 2013 at 05:07:27PM +0200 hast du folgendes geschrieben:
  I don't think that the status even of a big package like iceweasel
  is satisfactory.
 
 I pretty much agree. But what's the problem here? That xulrunner and
 iceweasel have rdeps in the archive that aren't necessarily
 compatible with a new version of iceweasel and hence introducing yet
 another transition whenever the targeted release changes.

I suppose that iceweasel could be built against the libraries from
testing. Then AFAIK, there remains a few rdeps problems, concerning
libmozjs and xulrunner (which must match the iceweasel version),
but this can be resolved by having both versions installed (this
is possible).

Having different versions of some libs installed at the same time
may not really be satisfactory, but a very old version of iceweasel
is worse, IMHO.

  And concerning transitions, you don't need a freeze to block them.
 
 As if it would be that easy. c.f. R, which this thread is about and which
 didn't change any package name.

You can see that concerning R, the freeze was pretty useless to avoid
some problems. Now, the freeze only concerns testing. And it is easy
to prevent packages from migrating to testing. A spurious RC bug is a
solution.

There is no need to freeze *all* the packages.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-02 09:48:34 -0700, Russ Allbery wrote:
 Vincent Lefevre vinc...@vinc17.net writes:
  On 2013-04-02 14:29:46 +0100, Neil Williams wrote:
 
  That is not how it actually works out. Policy changes are made which
  require old packages to build with new flags, compilers and toolchain
  packages get upgraded and introduce new failure modes, QA tools improve
  and catch more corner cases. Those things no longer happen during a
  freeze, so the bug count has a chance to go down.
 
  Look at the graphs on bugs.debian.org - the RC count rises steadily
  outside of a freeze.
 
  The graph is meaningless. Many RC bugs can be due to transitions, which
  are specific (the freeze applies to *all* packagse).
 
 I don't see how that makes the graph meaningless.  One of the points of a
 freeze is that we stop doing new transitions; in fact, that's one of the
 painful parts that everyone complaints about.  How do you plan on keeping
 transitions from introducing new RC bugs without freezing?

Transitions can occur in unstable. But their migration to testing
would be blocked. This doesn't need a freeze.

  This is also due to the fact that more people are working on fixing RC
  bugs *now* instead of doing that before.
 
 Of course.  And the only thing that we've ever managed to do to get that
 behavior change is to freeze.
 
 If you could get everyone to work on RC bugs outside of a freeze so that
 the RC bug count doesn't spike and then grow continuously every time we
 unfreeze, then indeed we would have a much nicer release process.  Past
 experience tells us that's Hard; people work on RC bugs during the freeze
 and not to the same degree outside of the freeze.

Perhaps some kind of freeze should occur earlier, i.e. when RC bugs
start to become high, and unfreeze when the number of RC bugs is
low enough.

But I think one needs to differentiate:
  * RC bugs in testing and RC bugs in unstable only;
  * RC bugs from upstream (which shouldn't require much work from
Debian if upstream is active) and Debian-specific RC bugs.

  Again, you're missing the whole inter-dependency issue. A new piece of
  software can introduce / reveal bugs in previously working software. Or
  a previously working piece of software can start to fail because
  hardware has moved on and is able to push more data through the
  software than previously envisaged leading to complex threading /
  timing issues.
 
  But my point is that this is true only for some particular packages
 
 Which collectively amount to probably 75% of the archive, since among
 other things that includes pretty much any package that uses a shared
 library.

I don't understand what you mean here. If you mean that a shared
library is breaking many packages, then such a bug should be fixed
ASAP or the version should be reverted until the bug is fixed. The
package wouldn't probably have the time to migrate to testing anyway.

  and this doesn't prevent developers from fixing RC bugs.
 
 Nothing prevents developers from fixing RC bugs at any time.  They just
 don't in sufficient numbers to keep ahead of the incoming rate except
 during a freeze, both because the freeze drops the incoming rate (by,
 among other things, rejecting new transitions)

New transitions should be rejected in some other way, not by freezing
all the packages.

 and because more people actually work on RC bugs during a freeze.

Then perhaps call it a RC big fix period, where people should work
on RC bugs, but blocking new packages that fix bugs to experimental
or unstable is not a solution in particular if the freeze lasts a
long time.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-02 21:06:30 +0200, Tollef Fog Heen wrote:
 Just to expand slightly on this, the problem you're both poking at is
 that during a freeze, our incentives are directed towards fixing RC bugs
 (because then we can release, which means we can then do what we prefer
 to, which (as you can see in the unconstrained periods), is to package
 new software, new upstream versions and so on).  New code tends to be
 buggier than older, debugged code, so it's no surprise that we get more
 RC bugs in the non-freeze periods..

In general, bug-fix releases (which are also blocked by the freeze)
don't introduce new bugs.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Philipp Kern
On Wed, Apr 03, 2013 at 02:12:22PM +0200, Vincent Lefevre wrote:
 On 2013-04-02 21:06:30 +0200, Tollef Fog Heen wrote:
  Just to expand slightly on this, the problem you're both poking at is
  that during a freeze, our incentives are directed towards fixing RC bugs
  (because then we can release, which means we can then do what we prefer
  to, which (as you can see in the unconstrained periods), is to package
  new software, new upstream versions and so on).  New code tends to be
  buggier than older, debugged code, so it's no surprise that we get more
  RC bugs in the non-freeze periods..
 In general, bug-fix releases (which are also blocked by the freeze)
 don't introduce new bugs.

Case in point:
http://www.h-online.com/open/news/item/Security-updates-break-ownCloud-installations-1834507.html

We know from some projects that they have regression testing we deem
sufficient to trust that assertion. But I'm not sure it's generally
true.

Kind regards
Philipp Kern 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Philipp Kern
On Wed, Apr 03, 2013 at 01:28:58PM +0200, Vincent Lefevre wrote:
  I pretty much agree. But what's the problem here? That xulrunner and
  iceweasel have rdeps in the archive that aren't necessarily
  compatible with a new version of iceweasel and hence introducing yet
  another transition whenever the targeted release changes.
 I suppose that iceweasel could be built against the libraries from
 testing. Then AFAIK, there remains a few rdeps problems, concerning
 libmozjs and xulrunner (which must match the iceweasel version),
 but this can be resolved by having both versions installed (this
 is possible).

I said rdeps. Packages that depend on iceweasel and xulrunner. While the latter
is coinstallable, the former is not.

   And concerning transitions, you don't need a freeze to block them.
  As if it would be that easy. c.f. R, which this thread is about and which
  didn't change any package name.
 You can see that concerning R, the freeze was pretty useless to avoid
 some problems. Now, the freeze only concerns testing. And it is easy
 to prevent packages from migrating to testing. A spurious RC bug is a
 solution.

I interpreted your argument as being different:

 They should normally be detected when the package is uploaded in
 unstable.
 And concerning transitions, you don't need a freeze to block them.

Hence yes, we could block packages in unstable from being updated.
Transitions also happen for unstable which cause temporary
uninstallability, so I'm not sure what block you're talking about then.

Kind regards
Philipp Kern


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Philipp Kern
On Wed, Apr 03, 2013 at 03:33:30PM +0600, Andrey Rahmatullin wrote:
 On Tue, Apr 02, 2013 at 09:55:09PM +0200, Philipp Kern wrote:
   And not, we do not have epochs to temporarily downgrade a package
   after a botched upload.
  c.f. imagemagick
  I'm pretty sure we do.
 It seems we usually upload a 2really1 package to fix that particular
 mistake without introducing an epoch.

Which is a new custom that comes from Ubuntu who cannot reasonably use
epochs. We can.

Kind regards
Philipp Kern


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-03 20:14:32 +0200, Philipp Kern wrote:
 On Wed, Apr 03, 2013 at 02:12:22PM +0200, Vincent Lefevre wrote:
  In general, bug-fix releases (which are also blocked by the freeze)
  don't introduce new bugs.
 
 Case in point:
 http://www.h-online.com/open/news/item/Security-updates-break-ownCloud-installations-1834507.html

Of course, there are exceptions. But you can see that the problem
has been fixed very quickly (in less than 24 hours). If such a thing
happens in Debian, the intermediate broken versions wouldn't even
have the time to reach testing.

One may also wonder whether the broken versions have sufficiently
been tested. Perhaps not, to quickly fix a security problem. But
even in this case, this may be the right thing to do.

 We know from some projects that they have regression testing we deem
 sufficient to trust that assertion. But I'm not sure it's generally
 true.

Couldn't Debian packages have some field about the quality of
regression testing?

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-03 Thread Vincent Lefevre
On 2013-04-03 20:17:47 +0200, Philipp Kern wrote:
 On Wed, Apr 03, 2013 at 01:28:58PM +0200, Vincent Lefevre wrote:
   I pretty much agree. But what's the problem here? That xulrunner and
   iceweasel have rdeps in the archive that aren't necessarily
   compatible with a new version of iceweasel and hence introducing yet
   another transition whenever the targeted release changes.
  I suppose that iceweasel could be built against the libraries from
  testing. Then AFAIK, there remains a few rdeps problems, concerning
  libmozjs and xulrunner (which must match the iceweasel version),
  but this can be resolved by having both versions installed (this
  is possible).
 
 I said rdeps.

I know.

 Packages that depend on iceweasel and xulrunner. While the latter is
 coinstallable, the former is not.

It seems that most reverse dependencies for iceweasel are l10n
packages and extensions, so that one can consider them as part
of the upgrade. The remaining dependencies seem to have a form
like iceweasel | www-browser. So, what would be wrong?

Not also that in practice, many (most?) users will use a backport.
So, if some real reverse dependency would be affected by a change
in the iceweasel version, it rather needs to be fixed now.

And concerning transitions, you don't need a freeze to block them.
   As if it would be that easy. c.f. R, which this thread is about and which
   didn't change any package name.
  You can see that concerning R, the freeze was pretty useless to avoid
  some problems. Now, the freeze only concerns testing. And it is easy
  to prevent packages from migrating to testing. A spurious RC bug is a
  solution.
 
 I interpreted your argument as being different:
 
  They should normally be detected when the package is uploaded in
  unstable.
  And concerning transitions, you don't need a freeze to block them.
 
 Hence yes, we could block packages in unstable from being updated.
 Transitions also happen for unstable which cause temporary
 uninstallability, so I'm not sure what block you're talking about then.

I mean the update of the package in testing. A RC bug is a way to
block transitions from happening there; a freeze is not needed.

Concerning unstable, freeze or not, you can't really block updates
there (as this can be seen with R).

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Jukka Ruohonen
On Sun, Mar 31, 2013 at 05:39:05PM -0500, Dirk Eddelbuettel wrote:
 When I said peripheral I meant in the sense that none of the Depends are
 used by anything else beyond R. I know it is not small -- there are now
 4400 R packages on CRAN, and we have about 150 of those in Debian.

I think it must be asked: what is the rationale of trying to re-package
those for Debian? CRAN works.

- Jukka.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Danjean
Le 02/04/2013 08:40, Jukka Ruohonen a écrit :
 On Sun, Mar 31, 2013 at 05:39:05PM -0500, Dirk Eddelbuettel wrote:
 When I said peripheral I meant in the sense that none of the Depends are
 used by anything else beyond R. I know it is not small -- there are now
 4400 R packages on CRAN, and we have about 150 of those in Debian.
 
 I think it must be asked: what is the rationale of trying to re-package
 those for Debian? CRAN works.

As for perl, python, ruby, ... modules: only one software to install/upgrade/
fix security bug, ... : apt

When R packages exist in Debian, I always install them from Debian. So that,
I do not have to re-install them at each change of R version. I do not have
to check if new upstream versions are available neither. apt does it for me.

Now, as for perl (and probably other software with lots of modules), the
creation of a R Debian package from a R CRAN package should be as automatic
as possible (I did not check at all where we are on this point).

  Regards,
Vincent

 - Jukka.
 
 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Jonathan Dowland
On Mon, Apr 01, 2013 at 12:48:08AM +0300, Uoti Urpala wrote:
 IMO it's important to remember that it's fundamentally the release team
 that is at fault for problems here, not the R maintainer.

Can you please remind me what you do for Debian? Aside from flame debian-devel.
I've forgotten.

 Unstable has already been frozen for much longer than is in any way
 reasonable for either development of Debian, users of Debian unstable, or
 upstreams whose current software is either not being packaged at all or is
 only in experimental.

I agree with this, but the release team are not the people who are on the
critical path for getting us to release-ready, as per our current release
process.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Jonathan Dowland
On Mon, Apr 01, 2013 at 12:15:17AM +0200, Arno Töll wrote:
 So help speeding up the release process.

The universal rebuttal to all complaints about the release process. Sadly
it misses the point at the heart of most complaints: far too much work is
needed to become release-ready, and there is not enough resource to do it.

People who feel the release process is broken and care about Debian have
a duty to discuss it.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Jonathan Dowland
On Mon, Apr 01, 2013 at 07:57:50AM +0300, Faidon Liambotis wrote:
 I don't think the time for this discussion is now, so I'll restrain
 myself from saying more. The release is near, and there's going to
 be plenty of time until the next freeze :)

When the pain of the freeze will be a fast-fading memory, and we'll
not bother trying to reform the release process until we're in the
thick of it again, and if anyone dares suggest that the process is
flawed at that point they'll be labelled a pariah and shunned from
the village.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Jonathan Dowland
On Mon, Apr 01, 2013 at 04:45:19PM +0100, Neil McGovern wrote:
 You seem to believe that unstable is more important than stable
 releases. I do not. One of us is in the wrong project.

If, you are suggesting here, that the release process in Debian is utterly
set in stone and nobody may raise objections about it or try to work to
address the problems that people have with it, then I guess *I'm* in the
wrong project.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Josselin Mouette
Le mardi 02 avril 2013 à 09:15 +0100, Jonathan Dowland a écrit : 
 The universal rebuttal to all complaints about the release process. Sadly
 it misses the point at the heart of most complaints: far too much work is
 needed to become release-ready, and there is not enough resource to do it.
 
 People who feel the release process is broken and care about Debian have
 a duty to discuss it.

This is indeed Debian’s problem and needs discussion, but the roots lie
in upstreams. It mostly comes down to the fact that upstreams of a
growing number of projects are not able to synchronize their releases so
that a single set of versions can all work together.

Personally I think the best way to alleviate that problem would be to
reduce the set of packages that are included in a stable release (and
that also means in testing). But that is a high price to pay for the
sole benefit of making releases easier.

Cheers,
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-03-31 23:20:23 +0100, Neil Williams wrote:
 The length of the freeze is not the fault of the release team.
 
 The length of the freeze is down to all of the contributors to Debian
 not fixing enough RC bugs - I count myself in that, I've managed to get
 massively less done for this release than for previous ones. There are
 reasons, it doesn't change the reality that the freeze is still ongoing.

I disagree. If the freeze occurred only once (almost) all RC bugs
were fixed, there would be (almost) no delay. I suspect that the
length of the freeze is due to the fact that the freeze occurred
while too many RC bugs were already open.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-02 11:09:35 +0200, Josselin Mouette wrote:
 This is indeed Debian’s problem and needs discussion, but the roots lie
 in upstreams. It mostly comes down to the fact that upstreams of a
 growing number of projects are not able to synchronize their releases so
 that a single set of versions can all work together.
 
 Personally I think the best way to alleviate that problem would be to
 reduce the set of packages that are included in a stable release (and
 that also means in testing). But that is a high price to pay for the
 sole benefit of making releases easier.

If neither upstream nor the Debian maintainer of some package is
active and the package is rather buggy (e.g. with RC bugs not easy
to fix), I don't think that the package should be in stable.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Samuel Thibault
Vincent Lefevre, le Tue 02 Apr 2013 14:52:35 +0200, a écrit :
 On 2013-03-31 23:20:23 +0100, Neil Williams wrote:
  The length of the freeze is not the fault of the release team.
  
  The length of the freeze is down to all of the contributors to Debian
  not fixing enough RC bugs - I count myself in that, I've managed to get
  massively less done for this release than for previous ones. There are
  reasons, it doesn't change the reality that the freeze is still ongoing.
 
 I disagree. If the freeze occurred only once (almost) all RC bugs
 were fixed,

Problem is: until you freeze, new RC bugs keep getting introduced.

Samuel


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Adam D. Barratt

On 02.04.2013 13:52, Vincent Lefevre wrote:

I suspect that the
length of the freeze is due to the fact that the freeze occurred
while too many RC bugs were already open.


If so, there was a good reason for that (i.e. pre-announced time-based 
freeze). As others have said (although ymmv) I don't think this is the 
appropriate time to get in to the pros / cons of that decision.


Regards,

Adam


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Neil Williams
On Tue, 2 Apr 2013 14:52:35 +0200
Vincent Lefevre vinc...@vinc17.net wrote:

 On 2013-03-31 23:20:23 +0100, Neil Williams wrote:
  The length of the freeze is not the fault of the release team.
  
  The length of the freeze is down to all of the contributors to Debian
  not fixing enough RC bugs - I count myself in that, I've managed to get
  massively less done for this release than for previous ones. There are
  reasons, it doesn't change the reality that the freeze is still ongoing.
 
 I disagree. If the freeze occurred only once (almost) all RC bugs
 were fixed, there would be (almost) no delay. I suspect that the
 length of the freeze is due to the fact that the freeze occurred
 while too many RC bugs were already open.

The release happens when (almost) all RC bugs are fixed, the freeze is
to allow the existing bugs to be fixed whilst *protecting* the other
packages from breakage caused by new software being uploaded.

The RC bug count only ever comes down once a freeze is in place.

New software causes new bugs, that's inescapable. To reduce the bug
count, existing software must be fixed without allowing new software to
continue breaking things and whilst making the absolute minimal
changes to the software which is still working. *That* is the freeze.

-- 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-02 15:09:43 +0200, Samuel Thibault wrote:
 Vincent Lefevre, le Tue 02 Apr 2013 14:52:35 +0200, a écrit :
  I disagree. If the freeze occurred only once (almost) all RC bugs
  were fixed,
 
 Problem is: until you freeze, new RC bugs keep getting introduced.

But I would say, not many. Or RC bugs also apply to old versions
of the package.

Moreover really new RC bugs are introduced on packages where
upstream is active (since the version is new), so that they
have a better chance to be fixed quickly.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Goswin von Brederlow
On Mon, Apr 01, 2013 at 01:13:29PM +0100, Neil Williams wrote:
 On Mon, 1 Apr 2013 17:42:29 +0600
 Andrey Rahmatullin w...@wrar.name wrote:
 
  On Mon, Apr 01, 2013 at 12:33:15AM -0500, Steve M. Robbins wrote:
Thanks for trading the R release cycle with Debian's and for
delaying the release. The harm has already been done, so somebody
should probably go and create a transition tracker for it?
   
   Rather than accept the harm, surely the release team could simply roll
   back the upload in some manner?
  Only by uploading older versions with bumped version numbers, and that
  still will cause testing and unstable to have different binaries.
 
 That is why we have epochs - an epoch is ignored for the purposes of
 the binary packages, see zlib1g and other packages using epochs. The
 existing tools have sane support for epochs, exactly to avoid these
 problems.
 
 http://packages.debian.org/sid/zlib1g
 1:1.2.7.dfsg-13
 
 http://ftp.uk.debian.org/debian/pool/main/z/zlib/zlib1g_1.2.7.dfsg-13_amd64.deb
 
 dpkg -l | grep ':'
 
 The version currently in wheezy could be re-uploaded with a single
 change to the changelog to start using an epoch and using the version
 string currently in wheezy for the post-epoch string of the new version.
 
 If wheezy had foo 1.2.3-1 and unstable 2.0.0-1, the epoch version of
 1.2.3 would be 1:1.2.3-1 which is newer than 2.0.0-1 but be compatible
 with 1.2.3-1 already in wheezy.

Actually that hits another problem. Namely that the epoch does not
appear in the binary package filename. While wheezy would have 1.2.3-1
and unstable would have 1:1.2.3-1 they both produce the same
foo_1.2.3-1_amd64.deb. But for certain the file contents will differ,
the files won't be bit identical and checksums will differ. The
archive can not handle that case.

You would have to upload foo 1:1.2.3-2 to avoid the name clash.


And not, we do not have epochs to temporarily downgrade a package
after a botched upload. Esspecially when the package doesn't yet have
a epoch.

MfG
Goswin


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Neil Williams
On Tue, 2 Apr 2013 15:09:33 +0200
Vincent Lefevre vinc...@vinc17.net wrote:

 On 2013-04-02 11:09:35 +0200, Josselin Mouette wrote:
  This is indeed Debian’s problem and needs discussion, but the roots lie
  in upstreams. It mostly comes down to the fact that upstreams of a
  growing number of projects are not able to synchronize their releases so
  that a single set of versions can all work together.
  
  Personally I think the best way to alleviate that problem would be to
  reduce the set of packages that are included in a stable release (and
  that also means in testing). But that is a high price to pay for the
  sole benefit of making releases easier.
 
 If neither upstream nor the Debian maintainer of some package is
 active and the package is rather buggy (e.g. with RC bugs not easy
 to fix), I don't think that the package should be in stable.

Whilst there are packages which are in that state and some of those can
be removed, it isn't possible to remove such packages when there are
multiple reverse dependencies. We cannot remove every package where
both the maintainer and the upstream are inactive without also removing
a lot of packages which have active teams. Equally, active teams don't
have the bandwidth to take on the workload of all of their inactive
dependencies.

-- 


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=
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Samuel Thibault
Vincent Lefevre, le Tue 02 Apr 2013 15:15:38 +0200, a écrit :
 On 2013-04-02 15:09:43 +0200, Samuel Thibault wrote:
  Vincent Lefevre, le Tue 02 Apr 2013 14:52:35 +0200, a écrit :
   I disagree. If the freeze occurred only once (almost) all RC bugs
   were fixed,
  
  Problem is: until you freeze, new RC bugs keep getting introduced.
 
 But I would say, not many.

Yes, many. See some other reply: the RC bug count only really goes down
during freezes.

 Moreover really new RC bugs are introduced on packages where
 upstream is active (since the version is new), so that they
 have a better chance to be fixed quickly.

RC bugs are not only about upstream, it's also about packaging,
transitions, etc. It can easily become an intractable mess if things
keep getting changed. That's what the freeze it meant to avoid.

Samuel


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Neil Williams
On Tue, 2 Apr 2013 15:15:38 +0200
Vincent Lefevre vinc...@vinc17.net wrote:

 On 2013-04-02 15:09:43 +0200, Samuel Thibault wrote:
  Vincent Lefevre, le Tue 02 Apr 2013 14:52:35 +0200, a écrit :
   I disagree. If the freeze occurred only once (almost) all RC bugs
   were fixed,
  
  Problem is: until you freeze, new RC bugs keep getting introduced.
 
 But I would say, not many. Or RC bugs also apply to old versions
 of the package.

That is not how it actually works out. Policy changes are made which
require old packages to build with new flags, compilers and toolchain
packages get upgraded and introduce new failure modes, QA tools improve
and catch more corner cases. Those things no longer happen during a
freeze, so the bug count has a chance to go down.

Look at the graphs on bugs.debian.org - the RC count rises steadily
outside of a freeze.

 Moreover really new RC bugs are introduced on packages where
 upstream is active (since the version is new), so that they
 have a better chance to be fixed quickly.

Again, you're missing the whole inter-dependency issue. A new piece of
software can introduce / reveal bugs in previously working software. Or
a previously working piece of software can start to fail because
hardware has moved on and is able to push more data through the
software than previously envisaged leading to complex threading /
timing issues.

Even during a freeze, there are many many RC bugs opened for the first
time and a lot of those are not in packages which have changed since
the freeze began.

No package is an island.

-- 


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=
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-01 02:34:41 +0200, Samuel Thibault wrote:
 Uoti Urpala, le Mon 01 Apr 2013 03:07:25 +0300, a écrit :
  Having latest upstream versions easily available to users is important
  for the development of many projects,
 
 That's what experimental is for.

There are various problems with experimental, in particular
dependencies are not necessarily listed, and upgrade from an
experimental package is not supported (it generally works,
but the maintainer doesn't have to take that into account).
In short, experimental is not for the end user.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-02 14:17:17 +0100, Neil Williams wrote:
 The release happens when (almost) all RC bugs are fixed, the freeze is
 to allow the existing bugs to be fixed whilst *protecting* the other
 packages from breakage caused by new software being uploaded.

You can still fix bugs while new software is uploaded, and more
generally RC bugs should be fixed ASAP.

 The RC bug count only ever comes down once a freeze is in place.

Developers should not wait for the freeze to fix RC bugs.

 New software causes new bugs, that's inescapable.

But new software also causes existing bugs to be fixed. The number of
bugs tend to decrease, in particular in bug-fix releases (note that
such releases are also blocked by the freeze).

 To reduce the bug count, existing software must be fixed without
 allowing new software to continue breaking things and whilst making
 the absolute minimal changes to the software which is still working.
 *That* is the freeze.

No, buggy new software that breaks things should not enter testing
in the first place. That's what unstable/testing is for. New buggy
packages should remain in unstable while new versions of good
packages could still enter testing for the next release.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-02 15:23:18 +0200, Samuel Thibault wrote:
 Vincent Lefevre, le Tue 02 Apr 2013 15:15:38 +0200, a écrit :
  On 2013-04-02 15:09:43 +0200, Samuel Thibault wrote:
   Vincent Lefevre, le Tue 02 Apr 2013 14:52:35 +0200, a écrit :
I disagree. If the freeze occurred only once (almost) all RC bugs
were fixed,
   
   Problem is: until you freeze, new RC bugs keep getting introduced.
  
  But I would say, not many.
 
 Yes, many. See some other reply: the RC bug count only really goes down
 during freezes.

But many packages don't have new RC bugs. They are still blocked
by the freeze.

I don't think that the status even of a big package like iceweasel
is satisfactory.

  Moreover really new RC bugs are introduced on packages where
  upstream is active (since the version is new), so that they
  have a better chance to be fixed quickly.
 
 RC bugs are not only about upstream, it's also about packaging,
 transitions, etc. It can easily become an intractable mess if things
 keep getting changed. That's what the freeze it meant to avoid.

They should normally be detected when the package is uploaded in
unstable.

And concerning transitions, you don't need a freeze to block them.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Vincent Lefevre
On 2013-04-02 14:29:46 +0100, Neil Williams wrote:
 That is not how it actually works out. Policy changes are made which
 require old packages to build with new flags, compilers and toolchain
 packages get upgraded and introduce new failure modes, QA tools improve
 and catch more corner cases. Those things no longer happen during a
 freeze, so the bug count has a chance to go down.
 
 Look at the graphs on bugs.debian.org - the RC count rises steadily
 outside of a freeze.

The graph is meaningless. Many RC bugs can be due to transitions,
which are specific (the freeze applies to *all* packagse). This is
also due to the fact that more people are working on fixing RC bugs
*now* instead of doing that before.

 Again, you're missing the whole inter-dependency issue. A new piece of
 software can introduce / reveal bugs in previously working software. Or
 a previously working piece of software can start to fail because
 hardware has moved on and is able to push more data through the
 software than previously envisaged leading to complex threading /
 timing issues.

But my point is that this is true only for some particular packages
and this doesn't prevent developers from fixing RC bugs.

-- 
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100% accessible validated (X)HTML - Blog: http://www.vinc17.net/blog/
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Samuel Thibault
Vincent Lefevre, le Tue 02 Apr 2013 17:20:52 +0200, a écrit :
 This is also due to the fact that more people are working on fixing RC
 bugs *now* instead of doing that before.

Which is one of the goals of freezing.

I'm just tired of argumenting over something that was already
discussed.  Let's just work on the actual release at stake...

Samuel


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Svante Signell
On Tue, 2013-04-02 at 16:29 +0200, Vincent Lefevre wrote:
 On 2013-04-01 02:34:41 +0200, Samuel Thibault wrote:
  Uoti Urpala, le Mon 01 Apr 2013 03:07:25 +0300, a écrit :
   Having latest upstream versions easily available to users is important
   for the development of many projects,
  
  That's what experimental is for.
 
 There are various problems with experimental, in particular
 dependencies are not necessarily listed, and upgrade from an
 experimental package is not supported (it generally works,
 but the maintainer doesn't have to take that into account).
 In short, experimental is not for the end user.

The best solution would be having unstable _never_ frozen, at the cost
of another repository during the freeze period. This was proposed some
time ago, see http://lists.debian.org/debian-devel/2013/01/msg00273.html
repeated here for convenience:

i) experimental being really for new stuff
ii) unstable unfrozen always:
- stable+1: if no freeze - testing after xx days as before
- stable+1=unstable frozen at freeze time: if during freeze - testing
- stable
- stable+2: if in freeze - unstable

And the frozen unstable/testing repository could cover a subset of the
packages in unstable: The good ones. That would effectively reduce the
freeze period.

As proposed in the thread the idea should be written down at
http://wiki.debian.org/ReleaseProposals
Since this idea is new as far as I could see it's time do do that.

The details can be discussed later on, when Wheezy is released.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Adam D. Barratt

On 02.04.2013 16:35, Svante Signell wrote:
The best solution would be having unstable _never_ frozen, at the 
cost
of another repository during the freeze period. This was proposed 
some
time ago, see 
http://lists.debian.org/debian-devel/2013/01/msg00273.html

repeated here for convenience:


That's a contentious definition of best. You also appear to have 
somewhat missed the point of my response to that original message, i.e. 
URL:http://lists.debian.org/debian-devel/2013/01/msg00274.html



i) experimental being really for new stuff
ii) unstable unfrozen always:
- stable+1: if no freeze - testing after xx days as before
- stable+1=unstable frozen at freeze time: if during freeze - 
testing

- stable
- stable+2: if in freeze - unstable

And the frozen unstable/testing repository could cover a subset of 
the
packages in unstable: The good ones. That would effectively reduce 
the

freeze period.


I'm still struggling to see how this is fundamentally different from 
the frozen suite which testing was introduced to replace, more than 
a dozen years ago. As per my earlier message referenced above, see 
URL:http://lists.debian.org/debian-devel/2000/08/msg00906.html for 
some detail of why frozen didn't work.



As proposed in the thread the idea should be written down at
http://wiki.debian.org/ReleaseProposals
Since this idea is new as far as I could see it's time do do that.


FSVO new.

Regards,

Adam


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Don Armstrong
On Tue, 02 Apr 2013, Jukka Ruohonen wrote:
 On Sun, Mar 31, 2013 at 05:39:05PM -0500, Dirk Eddelbuettel wrote:
  When I said peripheral I meant in the sense that none of the Depends are
  used by anything else beyond R. I know it is not small -- there are now
  4400 R packages on CRAN, and we have about 150 of those in Debian.
 
 I think it must be asked: what is the rationale of trying to
 re-package those for Debian? CRAN works.

CRAN works, but it's not optimal.

There's a reason why those packages are packaged, and why
http://debian-r.debian.net exists.
 

Don Armstrong

-- 
Sometimes I wish I could take back all my mistakes
but then I think
what if my mother could take back hers?
 -- a softer world #498
http://www.asofterworld.com/index.php?id=498

http://www.donarmstrong.com  http://rzlab.ucr.edu


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Russ Allbery
Jonathan Dowland j...@debian.org writes:
 On Mon, Apr 01, 2013 at 07:57:50AM +0300, Faidon Liambotis wrote:

 I don't think the time for this discussion is now, so I'll restrain
 myself from saying more. The release is near, and there's going to be
 plenty of time until the next freeze :)

 When the pain of the freeze will be a fast-fading memory, and we'll not
 bother trying to reform the release process until we're in the thick of
 it again, and if anyone dares suggest that the process is flawed at that
 point they'll be labelled a pariah and shunned from the village.

I really don't think this is true.  If someone tries to do that in a later
discussion, I at least promise to point out that the freeze is long and
uncomfortable and that, if we can come up with a better solution, we would
definitely benefit.

-- 
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Russ Allbery
Vincent Lefevre vinc...@vinc17.net writes:
 On 2013-04-02 14:29:46 +0100, Neil Williams wrote:

 That is not how it actually works out. Policy changes are made which
 require old packages to build with new flags, compilers and toolchain
 packages get upgraded and introduce new failure modes, QA tools improve
 and catch more corner cases. Those things no longer happen during a
 freeze, so the bug count has a chance to go down.

 Look at the graphs on bugs.debian.org - the RC count rises steadily
 outside of a freeze.

 The graph is meaningless. Many RC bugs can be due to transitions, which
 are specific (the freeze applies to *all* packagse).

I don't see how that makes the graph meaningless.  One of the points of a
freeze is that we stop doing new transitions; in fact, that's one of the
painful parts that everyone complaints about.  How do you plan on keeping
transitions from introducing new RC bugs without freezing?

 This is also due to the fact that more people are working on fixing RC
 bugs *now* instead of doing that before.

Of course.  And the only thing that we've ever managed to do to get that
behavior change is to freeze.

If you could get everyone to work on RC bugs outside of a freeze so that
the RC bug count doesn't spike and then grow continuously every time we
unfreeze, then indeed we would have a much nicer release process.  Past
experience tells us that's Hard; people work on RC bugs during the freeze
and not to the same degree outside of the freeze.

 Again, you're missing the whole inter-dependency issue. A new piece of
 software can introduce / reveal bugs in previously working software. Or
 a previously working piece of software can start to fail because
 hardware has moved on and is able to push more data through the
 software than previously envisaged leading to complex threading /
 timing issues.

 But my point is that this is true only for some particular packages

Which collectively amount to probably 75% of the archive, since among
other things that includes pretty much any package that uses a shared
library.

 and this doesn't prevent developers from fixing RC bugs.

Nothing prevents developers from fixing RC bugs at any time.  They just
don't in sufficient numbers to keep ahead of the incoming rate except
during a freeze, both because the freeze drops the incoming rate (by,
among other things, rejecting new transitions) and because more people
actually work on RC bugs during a freeze.

That's the fundamental constraint that any new release process needs to
work with.

-- 
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Russ Allbery
Vincent Lefevre vinc...@vinc17.net writes:

 There are various problems with experimental, in particular dependencies
 are not necessarily listed,

Huh?  I have no clue what you could possibly be talking about, unless
you're just saying that some packages in experimental are critically
buggy.

 and upgrade from an experimental package is not supported (it generally
 works, but the maintainer doesn't have to take that into account).

This is a bizarre statement to me.  Why would you not take that into
account as a maintainer?  I always have for everything I've uploaded to
experimental.

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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Peter Samuelson

[Jonathan Dowland]
 On Mon, Apr 01, 2013 at 04:45:19PM +0100, Neil McGovern wrote:
  You seem to believe that unstable is more important than stable
  releases. I do not. One of us is in the wrong project.
 
 If, you are suggesting here, that the release process in Debian is utterly
 set in stone and nobody may raise objections about it or try to work to
 address the problems that people have with it

ECHAN?  Did you quote the wrong text, or reply to the wrong message or
even the wrong sender?  Because your paraphrase seems to have nothing
to do with the text you quoted.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Peter Samuelson

[Vincent Lefevre]
 I disagree. If the freeze occurred only once (almost) all RC bugs
 were fixed, there would be (almost) no delay. I suspect that the
 length of the freeze is due to the fact that the freeze occurred
 while too many RC bugs were already open.

Agreed: in July 2012, many - too many - RC bugs were already open.
So when, in your estimation, would have been a better time to freeze?


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Tollef Fog Heen
]] Russ Allbery 

  and this doesn't prevent developers from fixing RC bugs.
 
 Nothing prevents developers from fixing RC bugs at any time.  They just
 don't in sufficient numbers to keep ahead of the incoming rate except
 during a freeze, both because the freeze drops the incoming rate (by,
 among other things, rejecting new transitions) and because more people
 actually work on RC bugs during a freeze.

Just to expand slightly on this, the problem you're both poking at is
that during a freeze, our incentives are directed towards fixing RC bugs
(because then we can release, which means we can then do what we prefer
to, which (as you can see in the unconstrained periods), is to package
new software, new upstream versions and so on).  New code tends to be
buggier than older, debugged code, so it's no surprise that we get more
RC bugs in the non-freeze periods..

-- 
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UNIX is user friendly, it's just picky about who its friends are


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Philipp Kern
Vincent,

am Tue, Apr 02, 2013 at 05:07:27PM +0200 hast du folgendes geschrieben:
 I don't think that the status even of a big package like iceweasel
 is satisfactory.

I pretty much agree. But what's the problem here? That xulrunner and iceweasel
have rdeps in the archive that aren't necessarily compatible with a new version
of iceweasel and hence introducing yet another transition whenever the
targeted release changes.

 And concerning transitions, you don't need a freeze to block them.

As if it would be that easy. c.f. R, which this thread is about and which
didn't change any package name.

Kind regards
Philipp Kern


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Philipp Kern
Goswin,

am Tue, Apr 02, 2013 at 03:18:24PM +0200 hast du folgendes geschrieben:
 And not, we do not have epochs to temporarily downgrade a package
 after a botched upload.

c.f. imagemagick

I'm pretty sure we do.

SCNR
Philipp Kern 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Niko Tyni
On Tue, Apr 02, 2013 at 09:50:23AM -0700, Russ Allbery wrote:
 Vincent Lefevre vinc...@vinc17.net writes:
 
  and upgrade from an experimental package is not supported (it generally
  works, but the maintainer doesn't have to take that into account).
 
 This is a bizarre statement to me.  Why would you not take that into
 account as a maintainer?  I always have for everything I've uploaded to
 experimental.

FWIW, I've done ABI-incompatible uploads of perl to experimental in the
past without changing the perlapi-* virtual package name or the libperl
SONAME.  The aim was to experiment with different configuration options,
particularly 64-bit integers and 128-bit long doubles.

I certainly didn't support upgrades from those versions to the same
extent as I'd have done for unstable. OTOH, the packages were pretty
close to uninstallable on any non-minimal systems anyway, as we didn't
offer corresponding rebuilt XS modules in experimental.
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-02 Thread Russ Allbery
Niko Tyni nt...@debian.org writes:

 FWIW, I've done ABI-incompatible uploads of perl to experimental in the
 past without changing the perlapi-* virtual package name or the libperl
 SONAME.  The aim was to experiment with different configuration options,
 particularly 64-bit integers and 128-bit long doubles.

 I certainly didn't support upgrades from those versions to the same
 extent as I'd have done for unstable. OTOH, the packages were pretty
 close to uninstallable on any non-minimal systems anyway, as we didn't
 offer corresponding rebuilt XS modules in experimental.

Oh, that's a good point.  Yes, I hadn't thought about that specific case
for testing ABI breakage in experimental.

-- 
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Philipp Kern
On Mon, Apr 01, 2013 at 05:23:08AM +0600, Andrey Rahmatullin wrote:
 And even a month ago [1] there were no RC bugs that could be helped with
 by a random contributor, and that was the case for some time already.
 So I think it is unfair to say that random contributors are responsible
 for the freeze delay. 
 [1]: http://lists.debian.org/20130301092949.gf7...@an3as.eu

But the freeze was longer than two months and a few helping hands earlier
could've speeded it up. ;-)

Sure, at this point, we're almost there hence one gets the tricky problems.

Kind regards
Philipp Kern


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Holger Levsen
Hi,

On Montag, 1. April 2013, Steve M. Robbins wrote:
 Rather than accept the harm, surely the release team could simply roll
 back the upload in some manner?

As I understand it, only by introducing an epoch in the package version. 
Which, understandably, is often frowned upon as an epoch never goes away and 
looks ugly. (For those caring about the look of version numbers.)

Which is actually sane: you dont want versions to vanish, same versions pop up 
with different content, etc pp.

So, also here: once you put something on the internet, it's out there and you 
cannot get it back.


cheers,
Holger


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Sun, 31 Mar 2013 17:45:15 -0500
Dirk Eddelbuettel e...@debian.org wrote:

 On 1 April 2013 at 00:16, Josselin Mouette wrote:
 | I don’t understand how you can say it “worked before”.
 | Let’s say you backport a R package from wheezy to squeeze (something we
 | tried recently at work). The new R will install without a dependency
 | problem, and… all modules will stop working.
 | 
 |  Testing is fine, but within unstable the transition has to be done.
 | 
 | Testing is not fine. The new R version could migrate to testing without
 
 Not if we blocked it. That's what I was trying to suggest.

So you are relying on the release process to provide the block?

Having the new version in unstable is much more likely to cause
problems with backports as other packages will change to match the new
API and then need those changes undone to be backportable.

 r-base_3.0.0~20130330 is one day old, there should be a new r-base_3.0.0-1 
 come
 April 3. 

... or an epoch could be used to put unstable back to what is in
testing and 3.0.0 could go into experimental, introducing the maximum
version limitation and API versioning at the same time.

 | There are reasons why other interpreters have complex dependency
 | schemes: previously to avoid that. Not only your reverse dependencies
 | should only depend on the *sufficient* version of R (in this case,
 | certainly not the R version used to compile the package, which will lead
 | to transition blockades to testing), but they should stop installing
 | when the version of R becomes incompatible, and so far nothing
 | guarantees that.
 | 
 | Perl has a perlapi-X.Y virtual package to avoid that.
 | Python generates python ( X.Y) dependencies to avoid that.
 | There are tons of similar schemes used across the Debian archive to
 | avoid such problems, from virtual packages, through autogenerated
 | dependencies, to package renames.
 | 
 | It’s OK if you don’t know the best way to do that for your package. This
 
 We did not need for the previous 15 years that R has been part of Debian. 

How many R transitions have been done during a release freeze?

How many at this perilously late stage of a release freeze?

A lot of things can be done early in a release freeze and only cause a
slight delay, if any. It is simply not possible to handle API changes
in unstable at this stage of a release without *directly* delaying that
release. The discussion of the rebuild request alone has required the
attention of people from the FTP team, wanna-build team, release team
and other DD's actively working on the release.

Just because it hasn't caused a big discussion before doesn't mean that
it wasn't a problem, just that it wasn't a big enough problem for lots
of people to get involved.

 If
 the release team strongly insists that I ought to add this, I can.  It has
 not been needed before.
 
 And Perl is an odd example as there are multiple APIs / versions used in
 parallel. We don't usually do that with R.

Unstable now has a different API and version to testing, yes?

Testing has a different API to stable (squeeze)? (I'm not sure)

Wheezy will definitely have a different API to Jessie, so backporters
will clearly need this kind of API version support.

Looks like multiple APIs / versions are inevitable, block or no block.

If multiple APIs / versions are never going to happen, then the API
version support can be avoided. If there is any situation (i.e. as now)
where multiple versions are desirable from your perspective (clearly not
desirable from the release perspective, right now) then your own
requirements mandate a change.

Personally, I agree with Josselin - R looks like it needs precisely the
same kind of API version limits as python or perl. Packages built for
the old API must not allow installation of a version of the interpreter
which breaks the API required by those packages until those packages
have been rebuilt and have a dependency suitable for the new API.

-- 


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=
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Samuel Thibault
Uoti Urpala, le Mon 01 Apr 2013 05:12:46 +0300, a écrit :
 Distributions that make latest
 software available are necessary for free software development.

Again, that's one of the things experimental is for.

Samuel


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Re: Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Andrey Rahmatullin
On Mon, Apr 01, 2013 at 12:33:15AM -0500, Steve M. Robbins wrote:
  Thanks for trading the R release cycle with Debian's and for
  delaying the release. The harm has already been done, so somebody
  should probably go and create a transition tracker for it?
 
 Rather than accept the harm, surely the release team could simply roll
 back the upload in some manner?
Only by uploading older versions with bumped version numbers, and that
still will cause testing and unstable to have different binaries.

-- 
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Uoti Urpala
Samuel Thibault wrote:
 Uoti Urpala, le Mon 01 Apr 2013 05:12:46 +0300, a écrit :
  Distributions that make latest
  software available are necessary for free software development.
 
 Again, that's one of the things experimental is for.

It is not. You can't reasonably install things from experimental rather
than unstable by default, nor is there a flag for this really should be
in unstable if not for badly managed release which would allow
autoinstalling those packages. Consider the GDB example I mentioned
earlier; GDB 4.5 should be installed by default for users of unstable,
rather than expecting them to notice that their system has become too
outdated, investigate it and find out which package to manually update.
It is unreasonable to tell the users and upstreams that Debian is going
to keep users on a known inferior version by default for a long time,
just in case more testing is needed to discover problems in the release
version (often in addition to multiple already discovered problems that
Debian is intentionally leaving for users to suffer from, as the most
natural way to fix them would be to update to a newer upstream version).

Also, many things don't get separately packaged in experimental, like
GDB 4.5 isn't (I don't know whether this particular case is due to
release or maintainer otherwise not keeping it up to date, but there are
lots of extra issues due to release, and most of them are unlikely to be
because of maintainer being too busy with other release work).




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[OT] Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Charles Plessy
Hi all,

while this thread may have the outcome of having Debian's R packages following
a similar convention as with the perl-api package (why not, it does not seem to
cost much), I hope that it is fairly clear for everyone that it will not change
how we release or how we use experimental: this part of the thread is chatting,
not focusing on getting something achieved.

So please, let's use debian-devel for real attempts at developing Debian, not
for chatting, however interseting it may be to those who do not mind reading
long threads.

Cheers,

-- 
Charles Plessy
Tsurumi, Kanagawa, Japan


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 17:42:29 +0600
Andrey Rahmatullin w...@wrar.name wrote:

 On Mon, Apr 01, 2013 at 12:33:15AM -0500, Steve M. Robbins wrote:
   Thanks for trading the R release cycle with Debian's and for
   delaying the release. The harm has already been done, so somebody
   should probably go and create a transition tracker for it?
  
  Rather than accept the harm, surely the release team could simply roll
  back the upload in some manner?
 Only by uploading older versions with bumped version numbers, and that
 still will cause testing and unstable to have different binaries.

That is why we have epochs - an epoch is ignored for the purposes of
the binary packages, see zlib1g and other packages using epochs. The
existing tools have sane support for epochs, exactly to avoid these
problems.

http://packages.debian.org/sid/zlib1g
1:1.2.7.dfsg-13

http://ftp.uk.debian.org/debian/pool/main/z/zlib/zlib1g_1.2.7.dfsg-13_amd64.deb

dpkg -l | grep ':'

The version currently in wheezy could be re-uploaded with a single
change to the changelog to start using an epoch and using the version
string currently in wheezy for the post-epoch string of the new version.

If wheezy had foo 1.2.3-1 and unstable 2.0.0-1, the epoch version of
1.2.3 would be 1:1.2.3-1 which is newer than 2.0.0-1 but be compatible
with 1.2.3-1 already in wheezy.

-- 


Neil Williams
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Wouter Verhelst
On 01-04-13 13:38, Uoti Urpala wrote:
 Samuel Thibault wrote:
 Uoti Urpala, le Mon 01 Apr 2013 05:12:46 +0300, a écrit :
 Distributions that make latest
 software available are necessary for free software development.

 Again, that's one of the things experimental is for.
 
 It is not. You can't reasonably install things from experimental rather
 than unstable by default,

Of course you can. Just add a file to /etc/apt/preferences.d that says

Package: *
Pin: release a=experimental
Pin-Priority: 500

and packages will be pulled from experimental by default. Whether you'd
want that is a different matter, of course.

 nor is there a flag for this really should be
 in unstable if not for badly managed release which would allow
 autoinstalling those packages. Consider the GDB example I mentioned
 earlier; GDB 4.5 should be installed by default for users of unstable,
 rather than expecting them to notice that their system has become too
 outdated, investigate it and find out which package to manually update.
 It is unreasonable to tell the users and upstreams that Debian is going
 to keep users on a known inferior version by default for a long time,

No, that is not unreasonable. It is unreasonable to expect Debian will
see the latest and greatest of everything at any given time. That is not
our way. That's not to say that distributions which do such a thing are
useless, or that their developers are idiots. They just have a different
focus.

You'll also see that once the freeze is over, newer versions will be
uploaded, and this problem will be gone.

-- 
Copyshops should do vouchers. So that next time some bureaucracy
requires you to mail a form in triplicate, you can mail it just once,
add a voucher, and save on postage.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil McGovern
On Mon, Apr 01, 2013 at 02:38:51PM +0300, Uoti Urpala wrote:
 It is not. You can't reasonably install things from experimental rather
 than unstable by default, nor is there a flag for this really should be
 in unstable if not for badly managed release

I'm getting rather annoyed by this accusations of a badly managed
release, and the continual diatrade from yourself blaming me and the
rest of the release team.

 It is unreasonable to tell the users and upstreams that Debian is
 going to keep users on a known inferior version by default for a long
 time, just in case more testing is needed to discover problems in the
 release version (often in addition to multiple already discovered
 problems that Debian is intentionally leaving for users to suffer
 from, as the most natural way to fix them would be to update to a
 newer upstream version).
 

You may consider it most natural, the rest of the project values
stability and not introducing untested new features. Perhaps you may
feel more at home in a different distribution which aligns with your
priorities more.

As it happens, I'm currently canvassing a release weekend when everyone
who needs to do work on the day can make it. Messages such as the above
do not help in any way, shape or form.

Neil


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Rene Engelhard
Hi,

On Mon, Apr 01, 2013 at 11:47:10AM +0200, Samuel Thibault wrote:
 Uoti Urpala, le Mon 01 Apr 2013 05:12:46 +0300, a écrit :
  Distributions that make latest
  software available are necessary for free software development.
 
 Again, that's one of the things experimental is for.

Which does not work either with a (almost) non-processed NEW. New software
might need packaging changed and/or new libraries etc

Regards,

Rene


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 14:26:58 +0200
Rene Engelhard r...@debian.org wrote:

 Hi,
 
 On Mon, Apr 01, 2013 at 11:47:10AM +0200, Samuel Thibault wrote:
  Uoti Urpala, le Mon 01 Apr 2013 05:12:46 +0300, a écrit :
   Distributions that make latest
   software available are necessary for free software development.
  
  Again, that's one of the things experimental is for.
 
 Which does not work either with a (almost) non-processed NEW. New software
 might need packaging changed and/or new libraries etc

... and those uploads go into experimental as well. What's wrong with that?

-- 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Rene Engelhard
On Mon, Apr 01, 2013 at 01:47:10PM +0100, Neil Williams wrote:
 ... and those uploads go into experimental as well. What's wrong with that?

That non-processed NEW for packages which in turn is needed for other
packages to go to experimental for getting them tested blocks those packages
from being able to be uploaded/tested?

If the time then comes when this all works out itself either the package
gets delayed or it gets uploaded to unstable quite (it can be tested
in experimental for those who use/want it) untested.

(Or the packages itself being blocked, but that example was just uploaded
on Thursday just before easter, so I understand it not being processed yet.

Regards,

Rene


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 14:59:14 +0200
Rene Engelhard r...@debian.org wrote:

 On Mon, Apr 01, 2013 at 01:47:10PM +0100, Neil Williams wrote:
  ... and those uploads go into experimental as well. What's wrong with that?
 
 That non-processed NEW for packages which in turn is needed for other
 packages to go to experimental for getting them tested blocks those packages
 from being able to be uploaded/tested?

NEW processing happens whether the new package is meant for unstable or
experimental. Whether the package is in unstable or experimental does
not change how that package gets tested. It can affect how that package
affects the release.

Having packages in experimental does not block the ability to test or
upload other packages which depend on functionality in those new
versions - you just need an appropriate setup, maybe a chroot.

Even if you think there are a few days between the time taken to process
NEW for experimental vs NEW for unstable, I've seen no evidence of that
and it's not as if a few days are really going to matter. (If it's that
critical, find a webhost running Debian and install reprepro.)

 If the time then comes when this all works out itself either the package
 gets delayed or it gets uploaded to unstable quite (it can be tested
 in experimental for those who use/want it) untested.

Compared to going into unstable completely untested directly from
incoming? Packages don't go into testing directly from experimental,
freeze or no freeze.

Experimental packages get more testing than unstable, simply because
the package has to go through unstable after the release anyway. At
least the version you want tested is in the archive and it has no
bearing on the release.

During a release, maintainers need to take extra steps to not get in
the way of the release:

$ dch -D experimental -i the 'No RC bugs to fix' upload.

Secondary to that, maintainers may also need to run debootstrap and
manually tweak the apt config to pull in experimental as already
described here by others.

What's so hard about that with the R packages?

We are trying to release, that means that *everyone* has some extra
work to do either directly to help or at the absolute minimum to not get
in the way of those who are helping.

-- 


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Rene Engelhard
On Mon, Apr 01, 2013 at 02:23:36PM +0100, Neil Williams wrote:
 NEW processing happens whether the new package is meant for unstable or
 experimental. Whether the package is in unstable or experimental does

True.

 not change how that package gets tested. It can affect how that package
 affects the release.

Yes, also true.

 Having packages in experimental does not block the ability to test or
 upload other packages which depend on functionality in those new
 versions - you just need an appropriate setup, maybe a chroot.

Wrong. When I upload something which depends on a package which
isn't available this is uninstallable - useless.

And testing is not only local machine but testing in experimental.
(see above.) By *real usage*. (There have already been
upgrade bugs found by people using my packages in experimental)

 Even if you think there are a few days between the time taken to process
 NEW for experimental vs NEW for unstable, I've seen no evidence of that
 and it's not as if a few days are really going to matter. (If it's that
 critical, find a webhost running Debian and install reprepro.)

A few days? There's stuff there *for months*?

And yes, I do people.debian.org. That's not the same as experimental.
(E.g. builds on the majority of architectures will be untested.
People will not look there, etc.)

 What's so hard about that with the R packages?

Read and think again, please.

I am not caring about R and I am not defeinibg Direk. In contrast,
he should have known that he shouldn't upload.

I am telling about the general case.

That your simple toy packages are not affected by this because they don't
have as much r-deps as e.g. libreoffice. fine. But that doesn't make
the problem go non-existant.

Regards,

Rene


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 15:46:44 +0200
Rene Engelhard r...@debian.org wrote:

 On Mon, Apr 01, 2013 at 02:23:36PM +0100, Neil Williams wrote:
  Having packages in experimental does not block the ability to test or
  upload other packages which depend on functionality in those new
  versions - you just need an appropriate setup, maybe a chroot.
 
 Wrong. When I upload something which depends on a package which
 isn't available this is uninstallable - useless.

It is installable from experimental if the local setup is correct. It's
only a change to apt sources and preferences, in a chroot if necessary.
How trivial do you want it?

All uploads not destined for wheezy go into experimental, all packages
in unstable and experimental are available for builds within
experimental. New stuff which would break things in unstable goes into
experimental. What's so hard about that?

It's not as if you're trying to mix Debian and Ubuntu using MultiArch
across three architectures to try and debug assembly code for a new
architecture for which there is currently no hardware... just for
example.

  Even if you think there are a few days between the time taken to process
  NEW for experimental vs NEW for unstable, I've seen no evidence of that
  and it's not as if a few days are really going to matter. (If it's that
  critical, find a webhost running Debian and install reprepro.)
 
 A few days? There's stuff there *for months*?

That's not my experience and hasn't been for a few years now. There
again, the FTP team are busy with the release too. Live with it or
find some way to help that team. Why should that excuse interrupting
the release team and making things *worse*?

  What's so hard about that with the R packages?
 
 Read and think again, please.

So there's nothing different in how R packages need to do this, so
there's no problem.
 
 I am not caring about R and I am not defeinibg Direk. In contrast,
 he should have known that he shouldn't upload.
 
 I am telling about the general case.
 
 That your simple toy packages are not affected by this because they don't
 have as much r-deps as e.g. libreoffice. fine. But that doesn't make
 the problem go non-existant.

I've worked on quite a few packages with this method over the years,
some core stuff like curl, cairo, ldap, cups, etc. and then there's all
the cross-build, multiarch stuff which is often dealing with toolchains
and low level libraries. Don't lecture me about rdeps and dismiss the
advice of your peers as the ramblings of fly-by-night maintainers of
toy packages. Everything related to R is a toy project to me, why
should your toy project interfere with my development time?

We're in the late stages of a release, that *requires* changes in how
your R packages are handled.

It requires some effort: yes
It requires a little thought: yes
It requires that you think about teams other than your own: YES!
It works: yes
It disturbs your workflow: yes - don't expect apologies for that.

Deal with it and don't expect everyone else to pick up the mess when
you can't be bothered to think of those working on the release or in
other teams who are also desperately trying to hold things together in
the hope that the release will happen *real soon* now and make our
lives easier too.

There are more people involved in this than your pet R project and
more than just the release team and the FTP team. Most of us are
quietly doing the right thing and using experimental or external
repositories but we're still getting the work done. Please, stop
getting in the way! It really isn't hard.

Just upload the epoch version to unstable to match testing, 1:3.0.0 to
experimental and move on. We've all wasted enough time on this already.

-- 


Neil Williams
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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Rene Engelhard
On Mon, Apr 01, 2013 at 03:36:35PM +0100, Neil Williams wrote:
 It is installable from experimental if the local setup is correct. It's
 only a change to apt sources and preferences, in a chroot if necessary.

This Debian. It is uninstallable there. And people (NOT ME!) can't install
it. Which is the point.

Or it even cannot be built.

It defeats the purpose of experimental when someone who want to use a package
from there need to go looking up some place where he can get the depencencies
from.

This is a RC bug the same way as it was in unstable or anywhere else.


 How trivial do you want it?

How much do you want to go against Debians policies?

  A few days? There's stuff there *for months*?
 
 That's not my experience and hasn't been for a few years now. There
 again, the FTP team are busy with the release too. Live with it or

Obviously you didn't even dare to look. I was not making this up:
http://ftp-master.debian.org/new.html

  I am not caring about R and I am not defeinibg Direk. In contrast,
^
  he should have known that he shouldn't upload.
^^
  
  I am telling about the general case.


 I've worked on quite a few packages with this method over the years,
 some core stuff like curl, cairo, ldap, cups, etc. and then there's all
 the cross-build, multiarch stuff which is often dealing with toolchains
 and low level libraries. Don't lecture me about rdeps and dismiss the

So you uploaded non-bbuildab le, non-installable packages to experimental?
Oh my.

For your own repoitories you were right, but this is about Debian
and it's distro.

 advice of your peers as the ramblings of fly-by-night maintainers of
 toy packages. Everything related to R is a toy project to me, why
 should your toy project interfere with my development time?
 
 We're in the late stages of a release, that *requires* changes in how
 your R packages are handled.
[..,]
 Just upload the epoch version to unstable to match testing, 1:3.0.0 to
 experimental and move on. We've all wasted enough time on this already.

Obviously you can't read (or you don't want to, which this is more
probable) but I am not talking abouut R but the general case.
I highlighted it above again for you.

Rgards,

Rene


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 15:36:35 +0100
Neil Williams codeh...@debian.org wrote:

 On Mon, 1 Apr 2013 15:46:44 +0200
 Rene Engelhard r...@debian.org wrote:

Apologies Rene, got you mixed up with Dirk re the R packages.

The bit about the epoch and the upload was intended for the R
maintainers.

  On Mon, Apr 01, 2013 at 02:23:36PM +0100, Neil Williams wrote:
  
  It is installable from experimental if the local setup is correct. It's
  only a change to apt sources and preferences, in a chroot if necessary.
  How trivial do you want it?
  
  All uploads not destined for wheezy go into experimental, all packages
  in unstable and experimental are available for builds within
  experimental. New stuff which would break things in unstable goes into
  experimental. What's so hard about that?

  I am telling about the general case.
  
  That your simple toy packages are not affected by this because they don't
  have as much r-deps as e.g. libreoffice. fine. But that doesn't make
  the problem go non-existant.

It may require a little preparation, yes, but it clearly does work.

 I've worked on quite a few packages with this method over the years,
 some core stuff like curl, cairo, ldap, cups, etc. and then there's all
 the cross-build, multiarch stuff which is often dealing with toolchains
 and low level libraries. Don't lecture me about rdeps and dismiss the
 advice of your peers as the ramblings of fly-by-night maintainers of
 toy packages.

I'm going to stop here before I dig myself an even bigger hole...

-- 


Neil Williams
=
http://www.linux.codehelp.co.uk/



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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Uoti Urpala
Neil McGovern wrote:
 On Mon, Apr 01, 2013 at 02:38:51PM +0300, Uoti Urpala wrote:
  It is unreasonable to tell the users and upstreams that Debian is
  going to keep users on a known inferior version by default for a long
  time, just in case more testing is needed to discover problems in the
  release version (often in addition to multiple already discovered
  problems that Debian is intentionally leaving for users to suffer
  from, as the most natural way to fix them would be to update to a
  newer upstream version).
  
 
 You may consider it most natural, the rest of the project values
 stability and not introducing untested new features.

I think you misunderstood that as saying I wanted to change packages in
stable; the above was from the perspective of unstable (the natural way
to fix known issues in unstable would be to upload a new upstream
version). I do not believe there is any project-wide consensus to avoid
newer versions in unstable.

 Perhaps you may
 feel more at home in a different distribution which aligns with your
 priorities more.

I think unstable works reasonably well outside release problems (there
are sometimes issues with new enough packages not being available, but I
think those are mostly due to activity of individual maintainers, not
project priorities). And I don't believe it to be a shared view of all
Debian maintainers that only stable releases matter, and users of
unstable are only tools to use to polish stable. Nor do I believe that
all other users of unstable are only trying to help create stable
releases for others to use, intentionally sacrificing their own
experience to do so. And whatever distro I personally choose, as
upstream of packaged software I certainly do not approve of Debian
leaving its upstable users at a known inferior version during long
release freezes.


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil Williams
On Mon, 1 Apr 2013 16:42:26 +0200
Rene Engelhard r...@debian.org wrote:

 On Mon, Apr 01, 2013 at 03:36:35PM +0100, Neil Williams wrote:
  It is installable from experimental if the local setup is correct. It's
  only a change to apt sources and preferences, in a chroot if necessary.
 
 This Debian. It is uninstallable there. And people (NOT ME!) can't install
 it. Which is the point.

Packages in experimental are installable for anyone using Debian, with
the appropriate tweaks to apt config.

Chroots and adapted apt config are perfectly acceptable for Debian -
it's the established method of using experimental.

 Or it even cannot be built.

Packages in experimental can be built trivially when the chroots used
are also tweaked to see experimental.
 
 It defeats the purpose of experimental when someone who want to use a package
 from there need to go looking up some place where he can get the depencencies
 from.

True but it can be useful in intermediate stages. However, I was only
talking about uploading outside Debian as the last resort, not the
recommended fix and certainly not making packages in experimental
depend on external repos, that's the wrong way around.

 How much do you want to go against Debians policies?

You're misunderstanding what I was trying to get at. Experimental is a
suitable target for this work and when combined with unstable, it needs
to be self-contained - correct. 

If a package in experimental needs a dependency, then that dependency
upload also goes into experimental.

The benefit is that if that goes wrong and the packages are
uninstallable then first, that can be fixed in experimental and second,
the RC bug does not affect the release (or other teams).

  I've worked on quite a few packages with this method over the years,
  some core stuff like curl, cairo, ldap, cups, etc. and then there's all
  the cross-build, multiarch stuff which is often dealing with toolchains
  and low level libraries. Don't lecture me about rdeps and dismiss the
 
 So you uploaded non-bbuildab le, non-installable packages to experimental?
 Oh my.

No. Those I upload to personal reprepro instances, if at all.

We're at cross-purposes here - I'm not advising uploading unfinished or
interim/broken packages to experimental. However, merely using
experimental for uploads during a freeze in no way makes an otherwise
correct package uninstallable or FTBFS. r-deps are just a bit of extra
work but that is *not* insurmountable.

-- 


Neil Williams
=
http://www.linux.codehelp.co.uk/



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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Neil McGovern
On Mon, Apr 01, 2013 at 05:48:13PM +0300, Uoti Urpala wrote:
 Neil McGovern wrote:
  On Mon, Apr 01, 2013 at 02:38:51PM +0300, Uoti Urpala wrote:
   It is unreasonable to tell the users and upstreams that Debian is
   going to keep users on a known inferior version by default for a long
   time, just in case more testing is needed to discover problems in the
   release version (often in addition to multiple already discovered
   problems that Debian is intentionally leaving for users to suffer
   from, as the most natural way to fix them would be to update to a
   newer upstream version).
   
  
  You may consider it most natural, the rest of the project values
  stability and not introducing untested new features.
 
 I think you misunderstood that as saying I wanted to change packages in
 stable; the above was from the perspective of unstable (the natural way
 to fix known issues in unstable would be to upload a new upstream
 version). I do not believe there is any project-wide consensus to avoid
 newer versions in unstable.
 

http://wiki.debian.org/DebianStability. Also see dev-ref 3.1. And the
huge amount of discussion that lead to
http://wiki.debian.org/ReleaseProposals in 2005.

As for consensus, have a read over this thread to see if there's anyone
supporting your views.

  Perhaps you may
  feel more at home in a different distribution which aligns with your
  priorities more.
 
 I think unstable works reasonably well outside release problems (there
 are sometimes issues with new enough packages not being available, but I
 think those are mostly due to activity of individual maintainers, not
 project priorities).
 And I don't believe it to be a shared view of all Debian maintainers
 that only stable releases matter, and users of unstable are only tools
 to use to polish stable.
 Nor do I believe that all other users of unstable are only trying to
 help create stable releases for others to use, intentionally
 sacrificing their own experience to do so.
 And whatever distro I personally choose, as upstream of packaged
 software I certainly do not approve of Debian leaving its upstable
 users at a known inferior version during long release freezes.
 

Wow.

I would have liked to find a source in dev-ref or something which
pointed out explicitly the commitment to releases. But I can't because
we've been doing releases for NEARLY 20 YEARS.

You seem to believe that unstable is more important than stable
releases. I do not. One of us is in the wrong project.

Neil


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Michael Banck
Hi,

On Mon, Apr 01, 2013 at 04:45:19PM +0100, Neil McGovern wrote:
 On Mon, Apr 01, 2013 at 05:48:13PM +0300, Uoti Urpala wrote:
 You seem to believe that unstable is more important than stable
 releases. I do not. One of us is in the wrong project.

That's easy to answer:  It must be you, because Uoti Urpala does not
appear to be a DD or DM, AFAICT.



Michael


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Re: R 3.0.0 and required rebuilds of all reverse Depends: of R

2013-04-01 Thread Don Armstrong
On Sun, 31 Mar 2013, Dirk Eddelbuettel wrote:
 It really does not add much as well already have a, say, Dependds:
 r-base-core (= 3.0.0~20130327) so we are really just trading one
 for the other as far as I can tell.

The difference is that you can do the following:

r-base-core Provides: r-base-api-3

and all cran depends on r-base-api-3.

When the API changes incompatibly, and an entire rebuild is required,
you change the api, so that r-base-core now Provides r-base-api-4.
 
Now, all cran packages have to be upgraded in lockstep with R, and you
cannot have R packages installed which are incompatible with the R
interpreter.

The version number attached to the API only increments when the API
changes incompatibly. If the API changes in a complex way, you could
also conceivably provide multiple versions of the API in the base
package.


Don Armstrong

-- 
Tell me something interesting about yourself.
Lie if you have to.
 -- hugh macleod http://www.gapingvoid.com/archives/batch20.php

http://www.donarmstrong.com  http://rzlab.ucr.edu


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