Tue Feb 18 01:56:27 UTC 2014

1 files changed, 108 insertions, 0 deletions

diff --git a/pcr/pactools/pt-pacman-uncage b/pcr/pactools/pt-pacman-uncage
new file mode 100644
index 000000000..12b7e41d3
--- /dev/null
+++ b/pcr/pactools/pt-pacman-uncage
@@ -0,0 +1,108 @@
+
+#!/bin/bash
+#
+#   pacman-uncage
+#
+#   Copyright (c) 2002-2006 by Andrew Rose <rose.andrew@gmail.com>
+#   I used Judds pacman-optimise as a framework.
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+#   USA.
+#
+
+myver='2.9.8'
+dbroot="/var/lib/pacman"
+tmproot="/var/lib/pacman.new"
+pacmandb="/var/lib/pacman.db"
+
+usage() {
+        echo "pacman-uncage $myver"
+        echo "usage: $0 [pacman_db_root]"
+        echo
+        echo "pacman-uncage returns your pacman db to the generic style."
+        echo
+}
+
+die() {
+        echo "pacman-uncage: $*" >&2
+        exit 1
+}
+
+die_r() {
+        rm -f /tmp/pacman.lck
+        die $*
+}
+
+if [ "$1" != "" ]; then
+        if [ "$1" = "-h" -o "$1" = "--help" ]; then
+                usage
+                exit 0
+        fi
+        dbroot=$1
+fi
+
+if [ "`id -u`" != 0 ]; then
+        die "You must be root to uncage the database"
+fi
+
+# make sure pacman isn't running
+if [ -f /tmp/pacman.lck ]; then
+        die "Pacman lockfile was found.  Cannot run while pacman is running."
+fi
+
+if [ ! -d $dbroot ]; then
+        die "$dbroot does not exist or is not a directory"
+fi
+
+# don't let pacman run while we do this
+touch /tmp/pacman.lck
+
+# step 1: sum the old db
+echo "==> md5sum'ing the old database..."
+find $dbroot -type f | sort | xargs md5sum >/tmp/pacsums.old
+
+echo "==> copying pacman.db contents back, note: the time needed to get a brew is now."
+mkdir $tmproot
+cp -a $dbroot/. $tmproot
+
+echo "==> unmounting old dbroot and moving new one in"
+umount $dbroot
+rmdir $dbroot
+mv $tmproot $dbroot
+
+echo "==> md5sum'ing the new database..."
+find $dbroot -type f | sort | xargs md5sum >/tmp/pacsums.new
+
+echo "==> checking integrity..."
+diff /tmp/pacsums.old /tmp/pacsums.new >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+        # failed, move the old one back into place
+        rm -rf $dbroot
+        mkdir $dbroot
+        mount -a
+        die_r "integrity check FAILED, reverting to old database"
+fi
+
+echo "==> Removing old pacman.db"
+rm $pacmandb
+
+rm -f /tmp/pacman.lck /tmp/pacsums.old /tmp/pacsums.new
+           
+echo
+echo "Finished.  Your pacman database has been uncaged!. Welcome home."
+echo "You will need to remove the old mount line from your /etc/fstab"
+echo
+
+exit 0