Re: URL to source file

From	Vincent Lefevre <vincent@vinc17.net>
Newsgroups	linux.debian.user
Subject	Re: URL to source file
Date	2021-01-27 12:40 +0100
Message-ID	<BBRkZ-41M-3@gated-at.bofh.it> (permalink)
References	(2 earlier) <BBPMd-31u-3@gated-at.bofh.it> <BBPVU-3jT-3@gated-at.bofh.it> <BBQ5z-3n5-1@gated-at.bofh.it> <BBQyC-3wL-3@gated-at.bofh.it> <BBQRZ-3Su-23@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2021-01-27 12:02:53 +0100, Emanuel Berg wrote:
> > Or even better, with dpkg-query(1)
> >
> > file-url () {
> >     local debian=https://sources.debian.org/src
> >     local pack=$1
> >     local ver=$(dpkg-query -f '${Version}\n' -W $pack)
> >     local file=$2
> >     local url=$debian/$pack/$ver/$file
> >     echo $url
> > }
> 
> Advantage compared to previous version: more stable with
> dpkg-query, it also saves a fork (no pipe).

But dpkg-query will work only if the package is installed.

With zsh, you can avoid the pipe with zsh expansions:

  local ver=${${(M)${(f)"$(aptitude show $pack)"}:#Version:*}#* }

or with apt-cache (which is faster than aptitude):

  local ver=${${(M)${(f)"$(apt-cache show --no-all-versions $pack)"}:#Version:*}#* }

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

Thread

URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 10:30 +0100
  Re: URL to source file <tomas@tuxteam.de> - 2021-01-27 10:40 +0100
    Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 11:00 +0100
      Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 11:10 +0100
        Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 11:20 +0100
          Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 11:50 +0100
            Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 12:10 +0100
              Re: URL to source file Vincent Lefevre <vincent@vinc17.net> - 2021-01-27 12:40 +0100
                Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 14:50 +0100
                Re: URL to source file Vincent Lefevre <vincent@vinc17.net> - 2021-01-28 02:30 +0100
                Re: URL to source file Greg Wooledge <wooledg@eeg.ccf.org> - 2021-01-28 14:20 +0100
                Re: URL to source file Vincent Lefevre <vincent@vinc17.net> - 2021-01-28 15:40 +0100
                Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-29 05:00 +0100
                Re: URL to source file Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-27 17:10 +0100
      Re: URL to source file <tomas@tuxteam.de> - 2021-01-27 11:30 +0100
      Re: URL to source file Stefan Monnier <monnier@iro.umontreal.ca> - 2021-01-27 16:00 +0100
        Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 16:20 +0100
        Re: URL to source file Emanuel Berg <moasenwood@zoho.eu> - 2021-01-27 16:30 +0100

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