mirror of
https://github.com/moparisthebest/pacman
synced 2024-12-23 00:08:50 -05:00
b6387b954f
This should finally get the path replacement in our scripts right. This is the way the autoconf package itself does it and should not need much further tweaking. Threw in a few trailing whitespace corrections from the scripts as well. Signed-off-by: Dan McGee <dan@archlinux.org>
163 lines
4.3 KiB
Bash
163 lines
4.3 KiB
Bash
#!/bin/bash
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#
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# pacman-optimize
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# @configure_input@
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#
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# Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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# USA.
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#
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myver='@PACKAGE_VERSION@'
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dbroot='@ROOTDIR@@DBPATH@'
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lockfile='@ROOTDIR@@LOCKFILE@'
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error() {
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if [ "$USECOLOR" = "YES" -o "$USECOLOR" = "yes" ]; then
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echo -e "\033[1;31m:: ERROR:\033[1;0m \033[1;1m$@\033[1;0m" >&2
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else
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echo ":: ERROR: $@" >&2
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fi
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}
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# determine current USECOLOR setting
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[ -f "/etc/rc.conf" ] && source /etc/rc.conf
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[ -f "/etc/rc.d/functions" ] && source /etc/rc.d/functions
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usage() {
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echo "pacman-optimize (pacman) $myver"
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echo "usage: $0 [pacman_db_root]"
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echo
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echo "pacman-optimize is a little hack that should improve the performance"
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echo "of pacman when reading/writing to its filesystem-based database."
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echo
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echo "Because pacman uses many small files to keep track of packages,"
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echo "there is a tendency for these files to become fragmented over time."
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echo "This script attempts to relocate these small files into one"
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echo "continuous location on your hard drive. The result is that the hard"
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echo "drive should be able to read them faster, since the hard drive head"
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echo "does not have to move around the disk as much."
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echo
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}
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version() {
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printf "pacman-optimize (pacman) %s\n" "$myver"
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printf "Copyright (C) 2002-2007 Judd Vinet <jvinet@zeroflux.org>.\n"
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echo
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printf "This is free software; see the source for copying conditions.\n"
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printf "There is NO WARRANTY, to the extent permitted by law.\n"
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echo
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}
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die() {
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error $@
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exit 1
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}
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die_r() {
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rm -f $lockfile
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die $@
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}
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if [ "$1" = "-h" -o "$1" = "--help" ]; then
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usage
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exit 0
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fi
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if [ "$1" = "-V" -o "$1" = "--version" ]; then
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version
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exit 0
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fi
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if [ "$1" != "" ]; then
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dbroot="$1"
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fi
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# make sure pacman isn't running
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if [ -f $lockfile ]; then
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die "Pacman lockfile was found. Cannot run while pacman is running."
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fi
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if [ ! -d "$dbroot" ]; then
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die "$dbroot does not exist or is not a directory"
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fi
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if [ ! -w "$dbroot" ]; then
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die "You must have correct permissions to optimize the database"
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fi
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# do not let pacman run while we do this
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touch $lockfile
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# step 1: sum the old db
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stat_busy "Md5sum'ing the old database"
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find $dbroot -type f | sort | xargs md5sum > /tmp/pacsums.old
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stat_done
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# step 2: tar it up
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stat_busy "Tar'ing up $dbroot"
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cd $dbroot
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tar -czf /tmp/pacmanDB.tgz ./
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if [ $? -ne 0 ]; then
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stat_fail
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rm -f /tmp/pacmanDB.tgz /tmp/pacsums.old
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die_r "tar'ing up $dbroot failed"
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fi
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stat_done
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# step 3: make and sum the new db
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stat_busy "Making and md5sum'ing the new db"
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mkdir $dbroot.new
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tar -zxpf /tmp/pacmanDB.tgz -C $dbroot.new/
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if [ $? -ne 0 ]; then
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rm -f /tmp/pacmanDB.tgz /tmp/pacsums.old
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rm -rf "$dbroot.new"
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die_r "untar'ing $dbroot failed"
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fi
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find "$dbroot.new" -type f | sort | sed -e 's/pacman.new/pacman/g' |\
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xargs md5sum > /tmp/pacsums.new
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stat_done
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# step 4: compare the sums
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stat_busy "Checking integrity"
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diff /tmp/pacsums.old /tmp/pacsums.new >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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# failed
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stat_fail
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# leave /tmp/pacsums.old and .new for checking to see what doesn't match up
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rm -rf "$dbroot.new" $lockfile /tmp/pacmanDB.tgz
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die_r "integrity check FAILED, reverting to old database"
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fi
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stat_done
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# step 5: remove the new temporary database and the old one
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# and use the .tgz to replace the old one
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stat_busy "Putting the new database in place"
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rm -rf "$dbroot.new" "$dbroot"/*
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tar -zxpf /tmp/pacmanDB.tgz -C "$dbroot"/
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stat_done
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# remove the lock file, sum files, and .tgz of database
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rm -f $lockfile /tmp/pacsums.old /tmp/pacsums.new /tmp/pacmanDB.tgz
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echo
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echo "Finished. Your pacman database has been optimized."
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echo
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exit 0
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# vim: set ts=2 sw=2 noet:
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