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 <vinc...@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)
