Re: [gentoo-dev] new package notification

[Marko Mikulicic]

Gregg wrote:
> Also, as per my last email with the other script that was being worked on.
>  Ive noticed that the find in that one is faster because of the min and
> max depth settings.  These 2 seem to be perfect for merging together then
> having exactly what we want, with it being quick and easy.

Ok. I'm merging the two. I've already implemented the "remove" feture. 
It outputs in red, for consistency, but I don't know if it makes sense.

For the -maxdepth -mindepth:
I'm working to implement the 
EXCLUDE="distfiles:files:eclass:licenses:profiles:scripts:metadata:packages"
feature, but if -maxdepth 2-mindepth 2 is used it is useless because
at this directory level all we have is *.ebuild directories.
  But if the portage system will be extended to have more than two levels
of directories (instead of the "-" trik, like in "x11-libs") we'll
have to switch back.
  Ok. so I drop the EXCLUDE feature.

However the performance gain is ridiculous 0.3 seconds with recursive
vs 0.03 sec with maxdepth 2, given that rsync often takes much much longer.

What about /var/cache for script output ?
Or should I leave /root as default ?

I thought it could be called "emerge-rsync", at least until
we integrate it in emerge itself :-) ok?

I've added command line passing to emerge rysnc (for --clean)
Tell me if you like it.
I will make an ebuild for it, but I cannot provide hosting. Where should 
I put it?

So here is the script:
<snip>
#!/bin/sh
BASE=/var/cache
USE_COLORS=yes

# end user configuration section
. /etc/make.globals
BEFORE=$BASE/ebuild-rsync.before
AFTER=$BASE/ebuild-rsync.after
NEW=$BASE/ebuild-rsync.new
REMOVED=$BASE/ebuild-rsync.removed

if [ "$USE_COLORS" == "yes" ]; then
  RED="\033[;31m"
  GREEN="\033[;32m"
  NORMAL="\033[m"
fi

function portagetree () {
  find $PORTDIR -type d -mindepth 2 -maxdepth 2
}

# do it
portagetree >$BEFORE
emerge $@ rsync
portagetree >$AFTER
diff $BEFORE $AFTER | grep ">" | sed "s/> //g" > $NEW
diff $BEFORE $AFTER | grep "<" | sed "s/< //g" > $REMOVED

# cleanup
rm $BEFORE $AFTER

# display new ebuilds
if ! diff -q $NEW /dev/null >/dev/null; then
  echo
  echo New ebuilds:
  for i in $(cat $NEW); do
   . $(ls $i/*.ebuild --sort=time | head -n 1)
   echo -e $GREEN${i##$PORTDIR/}$NORMAL: $DESCRIPTION
  done
fi

# display removed ebuilds
if ! diff -q $REMOVED /dev/null >/dev/null; then
  echo
  echo Removed ebuilds:
   for i in $(cat $REMOVED); do
      echo -e $RED${i##$PORTDIR/}$NORMAL
   done
fi
</snip>