Re: Getting DEB_HOST_MULTIARCH from maintscripts
On 12/16/2016 05:03 AM, Mathieu Parent (Debian) wrote:
> 2016-12-16 1:24 GMT+01:00 Christian Seiler <christian@iwakd.de>:
>> On 12/15/2016 10:50 PM, Mathieu Parent (Debian) wrote:
>>> I need to have access to $DEB_HOST_MULTIARCH in prerm and postinst to
>>> create the appropriate symlink with update-alternatives.
>>>
>>> What is the best way to do this?
>>
>> Generate them from .in files at the appropriate time, resolving
>> the variable manually. See for example:
>>
>> https://sources.debian.net/src/dietlibc/0.34~cvs20160606-3/debian/rules/#L107-L110
>> https://sources.debian.net/src/dietlibc/0.34%7Ecvs20160606-3/debian/dietlibc-dev.postinst.in/
>
> Thanks.
>
> This is what I've done:
>
> https://anonscm.debian.org/cgit/pkg-samba/cifs-utils.git/commit/?id=b0fa211e28982d471a988a7f91df32934da64f98
Small side note: in your case (single Arch: any package) I don't think
it's necessary to split -arch and -indep override targets (I only do
that in dietlibc because it also builds a Arch: all -doc package where
I don't want to run the full build), and you could just use a simple
override_dh_auto_install: and override_dh_auto_clean:. Doesn't really
hurt either, but makes debian/rules more complicated than necessary in
your case.
> NB: I was a bit confused that dh-exec was not called for maintscript.
What do you mean? Whenever I use dh-exec it's either a) for renaming
files in debian/*.install or b) for having substvars available in
debian/*.install. Ah, now I see, you thought that it might be able to
replace substvars in postinst... I don't believe that'll work, since
postinst isn't a regular debhelper conffile, but instead always has a
shebang - so debhelper will never try to execute it - in contrast to
things like debian/*.install, which by default are not executable, so
debhelper can distinguish between the "simple file" and "script that
produces the actual contents of that file" - it couldn't do that for
things that are supposed to be scripts.
Regards,
Christian
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