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first go at fixing debian builds
This commit is contained in:
Sergei Golubchik
182
debian/mariadb-server-10.0.preinst
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182
debian/mariadb-server-10.0.preinst
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#!/bin/bash -e
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#
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# summary of how this script can be called:
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# * <new-preinst> install
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# * <new-preinst> install <old-version>
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# * <new-preinst> upgrade <old-version>
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# * <old-preinst> abort-upgrade <new-version>
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#
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. /usr/share/debconf/confmodule
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if [ -n "$DEBIAN_SCRIPT_DEBUG" ]; then set -v -x; DEBIAN_SCRIPT_TRACE=1; fi
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${DEBIAN_SCRIPT_TRACE:+ echo "#42#DEBUG# RUNNING $0 $*" 1>&2 }
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export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin
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MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
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DATADIR=/var/lib/mysql
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LOGDIR=/var/log/mysql
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UPGRADEDIR=/var/lib/mysql-upgrade
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# Try to stop the server in a sane way. If it does not success let the admin
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# do it himself. No database directories should be removed while the server
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# is running! Another mysqld in e.g. a different chroot is fine for us.
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stop_server() {
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if [ ! -x /etc/init.d/mysql ]; then return; fi
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set +e
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if [ -x /usr/sbin/invoke-rc.d ]; then
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cmd="invoke-rc.d mysql stop"
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else
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cmd="/etc/init.d/mysql stop"
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fi
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$cmd
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errno=$?
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set -e
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# 0=ok, 100=no init script (fresh install)
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if [ "$errno" != 0 -a "$errno" != 100 ]; then
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echo "${cmd/ */} returned $errno" 1>&2
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echo "There is a MySQL server running, but we failed in our attempts to stop it." 1>&2
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echo "Stop it yourself and try again!" 1>&2
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db_stop
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exit 1
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fi
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}
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################################ main() ##########################
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this_version=10.0
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# Abort if an NDB cluster is in use.
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if egrep -qi -r '^[^#]*ndb.connectstring|^[[:space:]]*\[[[:space:]]*ndb_mgmd' /etc/mysql/; then
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db_fset mysql-server/no_upgrade_when_using_ndb seen false || true
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db_input high mysql-server/no_upgrade_when_using_ndb || true
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db_go
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db_stop
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exit 1
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fi
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# Abort if skip-bdb option is enabled, required for 5.0 -> 5.1 upgrades.
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#TODO
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# Safe the user from stupidities.
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show_downgrade_warning=0
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for i in `ls $DATADIR/debian-*.flag 2>/dev/null`; do
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found_version=`echo $i | sed 's/.*debian-\([0-9\.]\+\).flag/\1/'`
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if dpkg --compare-versions "$this_version" '<<' "$found_version"; then
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show_downgrade_warning=1
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break;
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fi
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done
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if [ "$show_downgrade_warning" = 1 ]; then
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db_fset mariadb-server-$this_version/really_downgrade seen false || true
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db_input medium mariadb-server-$this_version/really_downgrade || true
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db_go
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db_get mariadb-server-$this_version/really_downgrade || true
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if [ "$RET" = "true" ]; then
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rm -f $DATADIR/debian-*.flag
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touch $DATADIR/debian-$this_version.flag
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else
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echo "Aborting downgrade from (at least) $found_version to $this_version." 1>&2
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echo "If are sure you want to downgrade to $this_version, remove the file" 1>&2
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echo "$DATADIR/debian-*.flag and try installing again." 1>&2
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db_stop
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exit 1
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fi
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fi
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# to be sure
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stop_server
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# If we use NIS then errors should be tolerated. It's up to the
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# user to ensure that the mysql user is correctly setup.
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# Beware that there are two ypwhich one of them needs the 2>/dev/null!
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if test -n "`which ypwhich 2>/dev/null`" && ypwhich >/dev/null 2>&1; then
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set +e
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fi
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#
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# Now we have to ensure the following state:
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# /etc/passwd: mysql:x:100:101:MySQL Server:/var/lib/mysql:/bin/false
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# /etc/group: mysql:x:101:
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#
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# Sadly there could any state be present on the system so we have to
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# modify everything carefully i.e. not doing a chown before creating
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# the user etc...
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#
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# creating mysql group if he isn't already there
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if ! getent group mysql >/dev/null; then
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# Adding system group: mysql.
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addgroup --system mysql >/dev/null
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fi
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# creating mysql user if he isn't already there
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if ! getent passwd mysql >/dev/null; then
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# Adding system user: mysql.
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adduser \
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--system \
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--disabled-login \
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--ingroup mysql \
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--home $DATADIR \
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--gecos "MySQL Server" \
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--shell /bin/false \
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mysql >/dev/null
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fi
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# end of NIS tolerance zone
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set -e
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# if there's a symlink, let's store where it's pointing, because otherwise
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# it's going to be lost in some situations
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for dir in DATADIR LOGDIR; do
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checkdir=`eval echo "$"$dir`
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if [ -L "$checkdir" ]; then
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mkdir -p "$UPGRADEDIR"
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cp -d "$checkdir" "$UPGRADEDIR/$dir.link"
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fi
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done
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# creating mysql home directory
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if [ ! -d $DATADIR -a ! -L $DATADIR ]; then
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mkdir $DATADIR
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fi
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# checking disc space
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if LC_ALL=C BLOCKSIZE= df --portability $DATADIR/. | tail -n 1 | awk '{ exit ($4>1000) }'; then
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echo "ERROR: There's not enough space in $DATADIR/" 1>&2
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db_stop
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exit 1
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fi
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# Since the home directory was created before putting the user into
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# the mysql group and moreover we cannot guarantee that the
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# permissions were correctly *before* calling this script, we fix them now.
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# In case we use NIS and no mysql user is present then this script should
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# better fail now than later..
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# The "set +e" is necessary as e.g. a ".journal" of a ext3 partition is
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# not chgrp'able (#318435).
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set +e
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chown mysql:mysql $DATADIR
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find $DATADIR -follow -not -group mysql -print0 2>/dev/null \
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| xargs -0 --no-run-if-empty chgrp mysql
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set -e
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# Some files below /etc/ were possibly in the mysql-server-5.0/etch package
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# before. They get overwritten by current ones to avoid unnecessary dpkg questions.
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while read md5 file; do
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if [ "`md5sum $file 2>/dev/null`" = "$md5 $file" ]; then
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cp /usr/share/mysql-common/internal-use-only/`echo $file | sed 's<>/<2F>_<EFBFBD>g'` $file
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fi
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done <<EOT
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6691f2fdc5c6d27ff0260eb79813e1bc /etc/init.d/mysql
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b53b9552d44661361d39157c3c7c51d3 /etc/logrotate.d/mysql-server
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57f3e58f72582ca55100dc1ba0f1a8ae /etc/mysql/debian-start
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EOT
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db_stop
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#DEBHELPER#
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exit 0
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