[sbopkg-users] Show requirements in -g option

[Nick Coleman]

On Mon, 15 Dec 2014 22:35:49 +0000
sbopkg-users-request at sbopkg.org wrote:

> Date: Sun, 20 Apr 2014 15:32:30 -0300
> From: Alexandre Souza <aesouza.jvm at gmail.com>
> Subject: [sbopkg-users] Show requirements in -g option
> hi everyone...
> I'm think that can be useful when we use "sbopkg -g <pack/program>"
> show the requirements file.(e.g pip needs pysetuptools) What do you
> thinks?

Co-incidentally, I had been writing something for my own use.  This
shell function will do what you want.  I intended to release it to this
list soon, but was working to tidy it up to ignore already-installed
packages.  

Currently it produces a list including packages already
installed.  The list is in order of requirements; in other words it can
simply be cut and pasted after "sbopkg -i ".

Usage: sbodeps pip
Output:: "pysetuptools pip"

Put this function in .bashrc or similar.

If you change the name of the function, you also need to change the
name of function call 'get_dep "$dep"'.

For software engineers: WITNESS THE POWER OF THIS FULLY FUNCTIONAL AND
OPERATIONAL battle station... oops, recursive function. ;-0

#  Written by Nick Coleman  22/10/14
#  Licence:  "X11" 
#
#  Find all requirements, recursively all
#  deps on deps, for a SBo package.
#   Find path of package.
#   Find all requirements for that package.
#   If "" return.
#   Store values.
#   Recurse.

function get_dep () {
    if [ ! $1 ] ; then return ; fi
    dir=$(find /var/lib/sbopkg/SBo/14.1 -type d -iname $1)
    if [ -s "$dir" ] ; then
        deps=($(sed -n 's/^REQUIRES="\(.*\)"$/\1/p' "$dir/${1}.info"))
        for dep in ${deps[@]}  ; do
            echo "$dep "
            get_dep "$dep"
        done
    else
        echo "Can't find $1"
        return 1
    fi
}

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