I have found some of the tools of portage a little opaque and confusing.
Once
I found eix, I put together a little set of shell scripts to make lists
of the
packages in portage.
The script 'makeeixall' goes through and does an eix update and then
generates
a set of lists of packages: all, installed, new (not installed) and updates.
The script 'eixall' and its aliases 'eixupdate' 'eixnew' and 'eixinst' grep
the associated lists and print matches to the standard out.
You will need to make the '/usr/local/tmp' directory or point EIXDIR to
some other location.
------------------------------------------------------------------------------
#!/bin/bash
# script to create a database of packages for quick reference
# 27 June 2013 version to make system-wide db
# 05 Aug 2013 add "downgrades" to the eixupdate listing
EIXDIR="/usr/local/tmp"
EIXALL="$EIXDIR/eix-all.txt"
EIXINST="$EIXDIR/eix-installed.txt"
EIXUPD="$EIXDIR/eix-updates.txt"
EIXNEW="$EIXDIR/eix-new.txt"
# first: get rid of the old db
rm $EIXALL
# second: have EIX update its binary db
eix-update
# third: run through the categories and build the eix-all text file
echo -n "Prepping files: all..."
cd /usr/portage
cat profiles/categories | while read dname
do
eix --care -c -x -C $dname
done >>$EIXALL
# fourth: make some utility text databases
# the installed packages
echo -n "install..."
grep -F '[I]' $EIXALL >$EIXINST
# the upgradeable packages
# be careful to append the "downgrades"
echo -n "updates..."
grep -F '[U]' $EIXALL >$EIXUPD
grep -F '[D]' $EIXALL >>$EIXUPD
grep -F '[UD]' $EIXALL >>$EIXUPD
# these files are also "installed", append to inst file
cat $EIXUPD >>$EIXINST
# the "new" uninstalled packages
echo "not-installed (new)"
grep -F '[N]' $EIXALL >$EIXNEW
# fifth: make the text file readable by anyone
chmod 0444 /usr/local/tmp/eix*.txt
exit 0
-------------------------------------------------------------------------------
The script 'eixall' is for searching the outputs of 'makeeixall'
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#!/bin/bash
# script to search a database of packages for quick reference (see
makeeixall)
# 27 June 2013 version 1: to use system-wide db
EIXDIR="/usr/local/tmp"
EIXALL="$EIXDIR/eix-all.txt"
EIXINST="$EIXDIR/eix-installed.txt"
EIXUPD="$EIXDIR/eix-updates.txt"
EIXNEW="$EIXDIR/eix-new.txt"
# first: do we have an argument to search for?
if [ $# -eq 0 ]
then
echo "usage: $0 [<grep-options>] <pattern>"
exit 1
fi
# second: find out which database we want to search
EIXNAME=`basename $0`
case $EIXNAME in
eixall )
EIXDB=$EIXALL
;;
eixinst )
EIXDB=$EIXINST
;;
eixupdates )
EIXDB=$EIXUPD
;;
eixnew )
EIXDB=$EIXNEW
;;
* )
echo "usage: $0 [<grep-options>] <pattern>"
exit 1
;;
esac
# third: is the database in existence and readable?
if [ ! -r "$EIXDB" ]
then #no - run makeixall to make dbs
sudo -E makeeixall
fi
# third: do the search
grep "$@" $EIXDB
exit $?
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Once eixall is in place, symlink the script to the aliases.
-----------------------------------------------------------------------------
cd /usr/local/bin
ln -s eixall eixnew
ln -s eixall eixinst
ln -s eixall eixupdate
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Typical usage would be:
1. emerge --sync
2. makeeixall
3. eixupdates . | less
and then do whatever to update your packages.
These scrips written by me are placed in the public domain, enjoy!
Gregory "Wolfe" Woodbury 14 Dec 2013
[email protected]
