On Nov 08 09:50:19, Jan Stary wrote:
> On Nov 07 19:21:07, srikant....@gmail.com wrote:
> > Jan Stary wrote:
> > > cat /var/db/pkg/$PACKAGE/+REQUIRING | xargs pkg_info -s
> >
> > Thats just the first level of dependencies. What about the
> > dependencies of the dependencies, and so on? It is a tree
> > structure. Recursion is needed if you want to know the
> > 'real collateral damage' :)
>
> Ah, recursively. Sorry.
>
>
> #!/bin/sh
>
> test $# -gt 0 || {
> echo usage: $0 package >&2
> exit 1
> }
>
> pkg=`pkg_info -I $1 2>/dev/null | awk '{print$1}'`
> test -n "$pkg" || {
> echo package $1 not recognized >&2
> exit 1
> }
>
> dir=/var/db/pkg/$pkg
> test -d "$dir" || {
> echo $dir does not exist >&2
> exit 1
> }
>
> {
> echo $pkg
> cat $dir/+REQUIRING 2>/dev/null | xargs -r -n1 $0
> } | sort -u
>
>
> This lists the dependencies recursively
> - just pipe the output through 'pkg_info -s'.
> (Damn, I like the "| xargs $0" bit a lot.)
>
> Am I reading pkg_info(1) wrong, or is there really
> not a trivial way to list the recursive dependencies
> of a given package (the opposite of -R) in pkg_info
> itself?
No really, what is the right way to recursively list the
dependencies of a given package? pkg_info doesn't seem to
do that natively (and the above attempt only works for
installed packages indeed). Is that a design decision,
say becuase of ambiguous dependencies?
Jan
