On 30 Aug 2006, at 04:56, Koen van der Drift wrote:
> Is there a command that shows which packages either depend or
> builddepend on another package (xorg and xorg-shlibs in this case) ?
There might be a play with apt or fink rm -r if they have something
like a 'dry-run' option..
But the "either depend or builddepends" makes me want to be more
cautious about the formulation :
On this machine I use to get recursive (bld-)deps the no-brainers :
:~ root# ls -l ~/bin|grep rec_
-rwxr-xr-x 4 root wheel 1454 Aug 23 00:23 rec_fb
-rwxr-xr-x 4 root wheel 1454 Aug 23 00:23 rec_fd
-rwxr-xr-x 4 root wheel 1454 Aug 23 00:23 rec_pb
-rwxr-xr-x 4 root wheel 1454 Aug 23 00:23 rec_pd
which, as you can see, are all the same file:
_______________________________________________
:~ root# cat ~/bin/rec_pd
#!/sw/bin/bash
# rec-pd : recursive depends of pkgs (= parameters)
# rec_pb : recursive depends and builddepends of pkgs
# rec_fd : recursive depends of the families of pkgs
# rec_fb : recursive depends and builddepends of the families of pkgs
# the output is always net of the (families of the) parameters
if [[ `cut -c5<<<"$0"` = "f" ]]
then ls=`fink dumpinfo -ffamily $@|sed -r -e 's,^family:
*,,' -e 's, +$,,' -e 's; *, *;\n;g'|sort -u`
else ls=`sed -r -e 's,( |\t)+,\n,g'<<<"$*"`
fi
ls0=$ls
totls=$ls
if [[ `cut -c6<<<"$0"` = "d" ]] ; then cmd="-fdepends" ; else cmd="-
fdepends -fbuilddepends" ; fi
until [[ `echo -n $ls|wc -w` -eq 0 ]] ; do
ls1=`fink dumpinfo $cmd $ls|sed -r -e 's,^(|build)depends: ,,' -e 's,
*\([^)]*\) *, ,g' -e 's,[[:space:]]+$,,' -e 's; *, *;\n;g'|sort -u|
sed -r -e 's,vfs2\-ssl,vfs2-unified,g' -e 's,vfs2( |$|\-sh),vfs2-
unified\1,g' -e 's,db44(|$|\-[bds]),db44-aes\1,g' -e 's,([-+a-z0-9]+)
[[:space:]]*\|[[:space:]]*\1,\1,g' -e 's,x11\-dev,xorg,' -e
's,x11,xorg,'|sort -u`
if [[ -n "`echo $ls1`" ]]
then ls=`fink list -t $ls1|fgrep -v '[virtual package'|cut -
f2|fgrep -x "$ls1"|fgrep -vx "$totls"`
else ls=$ls1
fi
# algorithm for removing alternatives is no good. Thus keep the
following echo
# here, to check for remaining alternatives at each stage, and
eventually to
# remove them manually (and to improve the algorithm itself each time):
echo "$ls"|fgrep '|' || :
totls=`echo $totls $ls|tr ' ' '\n'|sort -u`
done
totls=`echo "$totls"|fgrep -vx "$ls0"`
echo $totls
____________________________
on my office desktop, I use a conceptually completely different _ and
much heavier,
with no room for heuristics like above (takes into account all
provides, all sorts of virtual pkgs,
and all versionings, etc) _ set of tools...
The above does only "recursive" dependency analysis _ and even there,
<< referring here to my initial question about the formulation >>
you have to be quite careful whether you want to apply one of those
commands
to a (set of) pkg, or to their families, or _ whichever be that
choice _ to
their deps, or to their builddeps, or to the conjunction of both.
________________
Reverse recursive deps, as you want, are conceptually similar as above,
but "fink dumpinfo" doesn't seem geared towards it; I would rather be
thinking of tools
like 'dpkg-awk' for this type of job (ie, until 'fink dumpinfo'
gives us a similar language...
wishfull thinking <sigh>...).
The main drawback would be that dpkg-awk limits you to already built
pkgs...
JF
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