Many packages remove alternatives on upgrade, only to re-add them later,
potentially discarding manual choices of the user.


See also bug #71621.

--
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Le dimanche 23 septembre 2012 Ã* 13:49 +0200, Jakub Wilk a écrit :
> Many packages remove alternatives on upgrade, only to re-add them later,
> potentially discarding manual choices of the user.

Thanks for the report.

> Josselin Mouette <joss@debian.org>
> gedit (U)

I’ve fixed it in the SVN.

--
.'`. Josselin Mouette
: :' :
`. `'
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>>>>> Jakub Wilk <jwilk@debian.org> writes:

[Cross-posting to packages@qa, for elvis is maintained by the QA
group.]

> Many packages remove alternatives on upgrade, only to re-add them
> later, potentially discarding manual choices of the user.

> See also bug #71621.

[…]

> Debian QA Group <packages@qa.debian.org>
> elvis
> elvis-console
> elvis-tools
> ircii

[…]

BTW, do I understand it correctly that it's just a matter of
dropping the ‘upgrade’ case from .prerm? (Possible patch
MIME'd.)

TIA.

--
FSF associate member #7257

On 09/23/2012 08:40 AM, Ivan Shmakov wrote:
>>>>>> Jakub Wilk <jwilk@debian.org> writes:
>
> [Cross-posting to packages@qa, for elvis is maintained by the QA
> group.]
>
> > Many packages remove alternatives on upgrade, only to re-add them
> > later, potentially discarding manual choices of the user.
>
> > See also bug #71621.
>
> […]
>
> > Debian QA Group <packages@qa.debian.org>
> > elvis
> > elvis-console
> > elvis-tools
> > ircii
>
> […]
>
> BTW, do I understand it correctly that it's just a matter of
> dropping the ‘upgrade’ case from .prerm? (Possible patch
> MIME'd.)
>
> TIA.
>
>
>
>
> --- debian/elvis-console.prerm.~1~ 2012-09-23 13:34:49.000000000 +0000
> +++ debian/elvis-console.prerm 2012-09-23 15:24:02.000000000 +0000
> @@ -3,7 +3,7 @@
> set -e
>
> case "$1" in
> - upgrade|remove|deconfigure)
> + remove|deconfigure)
> for app in editor ex input vi view; do
> update-alternatives --quiet --remove "$app" /usr/bin/elvis
> done
> --- debian/elvis.prerm.~1~ 2012-09-23 13:34:49.000000000 +0000
> +++ debian/elvis.prerm 2012-09-23 15:24:02.000000000 +0000
> @@ -3,7 +3,7 @@
> set -e
>
> case "$1" in
> - upgrade|remove|deconfigure)
> + remove|deconfigure)
> for app in editor ex input vi view; do
> update-alternatives --quiet --remove "$app" /usr/bin/elvisnox
> done
> --- debian/elvis-tools.prerm.~1~ 2012-09-23 13:34:49.000000000 +0000
> +++ debian/elvis-tools.prerm 2012-09-23 15:24:02.000000000 +0000
> @@ -3,7 +3,7 @@
> set -e
>
> case "$1" in
> - upgrade|remove|deconfigure)
> + remove|deconfigure)
> update-alternatives --quiet --remove ctags /usr/bin/elvtags
> ;;
> failed-upgrade)

Can someone confirm that Ivan's proposed patch is the correct way to
deal with this problem? I have the same issue in some of my packages.

Thank you,
tony

tony mancill <tmancill@debian.org> writes:
> On 09/23/2012 08:40 AM, Ivan Shmakov wrote:

>> BTW, do I understand it correctly that it's just a matter of
>> dropping the ‘upgrade’ case from .prerm? (Possible patch
>> MIME'd.)

[...]

>> --- debian/elvis-tools.prerm.~1~ 2012-09-23 13:34:49.000000000 +0000
>> +++ debian/elvis-tools.prerm 2012-09-23 15:24:02.000000000 +0000
>> @@ -3,7 +3,7 @@
>> set -e
>>
>> case "$1" in
>> - upgrade|remove|deconfigure)
>> + remove|deconfigure)
>> update-alternatives --quiet --remove ctags /usr/bin/elvtags
>> ;;
>> failed-upgrade)

> Can someone confirm that Ivan's proposed patch is the correct way to
> deal with this problem? I have the same issue in some of my packages.

It's an improvement. Guillem makes a good argument that you should drop
deconfigure as well, which means that:

if [ "$1" = "remove" ] ; then
update-alternatives --remove <foo> <path-to-foo>
fi

is probably the best thing to use right now. See:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=71621

near the bottom for more discussion. (Note that while common, I've never
been fond of that case statement construction, since it means that we
can't introduce new maintainer script actions without modifying lots of
maintainer scripts that may not need to be modified otherwise.)

--
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>>>>> Russ Allbery <rra@debian.org> writes:

[…]

> It's an improvement. Guillem makes a good argument that you should
> drop deconfigure as well, which means that:

> if [ "$1" = "remove" ] ; then
> update-alternatives --remove <foo> <path-to-foo>
> fi

> is probably the best thing to use right now.

[…]

> (Note that while common, I've never been fond of that case statement
> construction, since it means that we can't introduce new maintainer
> script actions without modifying lots of maintainer scripts that may
> not need to be modified otherwise.)

? How is the ‘if’ statement above different to, say:

case "$1" in
(remove)
update-alternatives --remove <foo> <path-to-foo>
;;
esac

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Ivan Shmakov <oneingray@gmail.com> writes:

> ? How is the ‘if’ statement above different to, say:

> case "$1" in
> (remove)
> update-alternatives --remove <foo> <path-to-foo>
> ;;
> esac

It's not; what it *is* different from is the more common case
construction, which instead looks like:

case "$1" in
(remove)
update-alternatives --remove <foo> <path-to-foo>
;;
(upgrade|failed-upgrade|deconfigure)
;;
(*)
echo "Unknown call $@" >&2
exit 1
;;
esac

If the case doesn't have that default case, it doesn't have this problem,
but when you see the case statement, you usually see that form.

--
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