mirror of
https://github.com/moparisthebest/pacman
synced 2024-11-15 22:05:02 -05:00
3559306546
Address the issue of our scripts not working so great when gettext is not available. This has come up in multiple bug reports, and is relatively easy to address by adding a simple check and a stub function if gettext was not found that simply echos the original message. Addresses concerns from FS#9214 and FS#9607. Signed-off-by: Dan McGee <dan@archlinux.org>
172 lines
4.7 KiB
Bash
172 lines
4.7 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, see <http://www.gnu.org/licenses/>.
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#
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# gettext initialization
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export TEXTDOMAIN='pacman'
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export TEXTDOMAINDIR='@localedir@'
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myver='@PACKAGE_VERSION@'
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dbroot='@localstatedir@/lib/pacman/'
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lockfile="${dbroot}db.lck"
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msg() {
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local mesg=$1; shift
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printf "==> ${mesg}\n" "$@" >&2
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}
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error () {
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local mesg=$1; shift
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printf "==> ERROR: ${mesg}\n" "$@" >&2
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}
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usage() {
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printf "pacman-optimize (pacman) %s\n\n" "$myver"
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printf "$(gettext "Usage: %s [pacman_db_root]")\n\n" "$0"
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printf "$(gettext "\
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pacman-optimize is a little hack that should improve the performance\n\
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of pacman when reading/writing to its filesystem-based database.\n\n")"
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printf "$(gettext "\
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Because pacman uses many small files to keep track of packages,\n\
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there is a tendency for these files to become fragmented over time.\n\
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This script attempts to relocate these small files into one\n\
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continuous location on your hard drive. The result is that the hard\n\
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drive should be able to read them faster, since the hard drive head\n\
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does not have to move around the disk as much.\n")"
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}
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version() {
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printf "pacman-optimize (pacman) %s\n" "$myver"
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printf "$(gettext "\
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Copyright (C) 2002-2007 Judd Vinet <jvinet@zeroflux.org>.\n\n\
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This is free software; see the source for copying conditions.\n\
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There is NO WARRANTY, to the extent permitted by law.\n")"
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}
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die() {
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error "$@"
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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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# PROGRAM START
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# determine whether we have gettext; make it a no-op if we do not
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if [ ! $(type -t gettext) ]; then
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gettext() {
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echo "$@"
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}
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fi
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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="$1"
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fi
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# make sure diff is installed
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if ! type diff >/dev/null 2>&1; then
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die "$(gettext "diff tool was not found, please install diffutils.")"
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fi
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# make sure pacman isn't running
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if [ -f "$lockfile" ]; then
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die "$(gettext "Pacman lock file was found. Cannot run while pacman is running.")"
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fi
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if [ ! -d "$dbroot" ]; then
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die "$(gettext "%s does not exist or is not a directory.")" "$dbroot"
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fi
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if [ ! -w "$dbroot" ]; then
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die "$(gettext "You must have correct permissions to optimize the database.")"
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fi
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workdir=$(mktemp -d /tmp/pacman-optimize.XXXXXXXXXX) ||
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die_r "$(gettext "ERROR: Can not create temp directory for database building.")\n" >&2
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# do not let pacman run while we do this
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touch "$lockfile"
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# step 1: sum the old db
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msg "$(gettext "MD5sum'ing the old database...")"
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find "$dbroot" -type f | sort | xargs md5sum > "$workdir/pacsums.old"
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# step 2: tar it up
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msg "$(gettext "Tar'ing up %s...")" "$dbroot"
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cd "$dbroot"
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bsdtar -czf "$workdir/pacmanDB.tgz" ./
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if [ $? -ne 0 ]; then
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rm -rf "$workdir"
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die_r "$(gettext "Tar'ing up %s failed.")" "$dbroot"
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fi
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# step 3: make and sum the new db
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msg "$(gettext "Making and MD5sum'ing the new db...")"
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mkdir "$dbroot.new"
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bsdtar -zxpf "$workdir/pacmanDB.tgz" -C "$dbroot.new/"
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if [ $? -ne 0 ]; then
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rm -rf "$workdir"
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die_r "$(gettext "Untar'ing %s failed.")" "$dbroot"
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fi
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find "$dbroot.new" -type f | sort | \
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xargs md5sum | sed 's#.new/##' > "$workdir/pacsums.new"
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# step 4: compare the sums
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msg "$(gettext "Checking integrity...")"
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diff "$workdir/pacsums.old" "$workdir/pacsums.new" >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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# failed
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# leave /tmp/pacsums.old and .new for checking to see what doesn't match up
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rm -rf "$dbroot.new"
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die_r "$(gettext "Integrity check FAILED, reverting to old database.")"
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fi
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# step 5: remove the new temporary database and the old one
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# and use the .tgz to replace the old one
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msg "$(gettext "Putting the new database in place...")"
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rm -rf "$dbroot.new" "$dbroot"/*
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bsdtar -zxpf "$workdir/pacmanDB.tgz" -C "$dbroot/"
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# remove the lock file, sum files, and .tgz of database
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rm -f "$lockfile"
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rm -rf "$workdir"
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echo
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msg "$(gettext "Finished. Your pacman database has been optimized.")"
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msg "$(gettext "For full benefits of pacman-optimize, run 'sync' now.")"
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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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