MDEV-33750: Rename mysql to mariadb in Debian directory

As this is MariaDB then also variable names in mariadb-server.*inst should correlate when possible this change variable and directory names

Author: illuusio

debian/mariadb-server.postinst

@@ -60,11 +60,11 @@ case "$1" in
  fi
  fi
 
- mysql_statedir=/usr/share/mariadb
- mysql_datadir=/var/lib/mysql
- mysql_logdir=/var/log/mysql
- mysql_cfgdir=/etc/mysql
- mysql_upgradedir=/var/lib/mysql-upgrade
+ mariadb_statedir=/usr/share/mariadb
+ mariadb_datadir=/var/lib/mysql
+ mariadb_logdir=/var/log/mysql
+ mariadb_cfgdir=/etc/mysql
+ mariadb_upgradedir=/var/lib/mysql-upgrade
 
  # If the following symlink exists, it is a preserved copy the old data dir
  # created by the preinst script during a upgrade that would have otherwise
@@ -74,12 +74,12 @@ case "$1" in
 
  if [ "$dir" = "DATADIR" ]
  then
- targetdir=$mysql_datadir
+ targetdir=$mariadb_datadir
  else
- targetdir=$mysql_logdir
+ targetdir=$mariadb_logdir
  fi
 
- savelink="$mysql_upgradedir/$dir.link"
+ savelink="$mariadb_upgradedir/$dir.link"
  if [ -L "$savelink" ]
  then
  # If the targetdir was a symlink before we upgraded it is supposed
@@ -92,10 +92,10 @@ case "$1" in
  mv "$savelink" "$targetdir"
  else
  # this should never even happen, but just in case...
- mysql_tmp=$(mktemp -d -t mysql-symlink-restore-XXXXXX)
- echo "this is very strange! see $mysql_tmp/README..." >&2
- mv "$targetdir" "$mysql_tmp"
- cat << EOF > "$mysql_tmp/README"
+ mariadb_tmp=$(mktemp -d -t mariadb-symlink-restore-XXXXXX)
+ echo "this is very strange! see $mariadb_tmp/README..." >&2
+ mv "$targetdir" "$mariadb_tmp"
+ cat << EOF > "$mariadb_tmp/README"
 
 If you're reading this, it's most likely because you had replaced /var/lib/mysql
 with a symlink, then upgraded to a new version of mysql, and then dpkg
@@ -110,7 +110,7 @@ this all away.
 EOF
  fi
  fi
- rmdir $mysql_upgradedir 2>/dev/null || true
+ rmdir $mariadb_upgradedir 2>/dev/null || true
 
  done
 
@@ -122,38 +122,38 @@ EOF
  # This direct update is needed to enable an authentication mechanism to
  # perform mariadb-upgrade, (MDEV-22678). To keep the impact minimal, we
  # skip innodb and set key-buffer-size to 0 as it isn't reused.
- if [ -f "$mysql_datadir/auto.cnf" ] &&
- [ -f "$mysql_datadir/mysql/user.MYD" ] &&
- ! lsof -nt "$mysql_datadir"/mysql/user.MYD > /dev/null &&
- [ ! -f "$mysql_datadir/undo_001" ]
+ if [ -f "$mariadb_datadir/auto.cnf" ] &&
+ [ -f "$mariadb_datadir/mysql/user.MYD" ] &&
+ ! lsof -nt "$mariadb_datadir"/mysql/user.MYD > /dev/null &&
+ [ ! -f "$mariadb_datadir/undo_001" ]
  then
  echo "UPDATE mysql.user SET plugin='unix_socket' WHERE plugin='auth_socket';" |
  mariadbd --skip-innodb --key_buffer_size=0 --default-storage-engine=MyISAM --bootstrap 2> /dev/null
  fi
 
  # Ensure the existence and right permissions for the database and
  # log files. Use mkdir option 'Z' to create with correct SELinux context.
- if [ ! -d "$mysql_statedir" ] && [ ! -L "$mysql_statedir" ]
+ if [ ! -d "$mariadb_statedir" ] && [ ! -L "$mariadb_statedir" ]
  then
- mkdir -Z "$mysql_statedir"
+ mkdir -Z "$mariadb_statedir"
  fi
- if [ ! -d "$mysql_datadir" ] && [ ! -L "$mysql_datadir" ]
+ if [ ! -d "$mariadb_datadir" ] && [ ! -L "$mariadb_datadir" ]
  then
- mkdir -Z "$mysql_datadir"
+ mkdir -Z "$mariadb_datadir"
  fi
- if [ ! -d "$mysql_logdir" ] && [ ! -L "$mysql_logdir" ]
+ if [ ! -d "$mariadb_logdir" ] && [ ! -L "$mariadb_logdir" ]
  then
- mkdir -Z "$mysql_logdir"
+ mkdir -Z "$mariadb_logdir"
  fi
  # When creating an ext3 jounal on an already mounted filesystem like e.g.
  # /var/lib/mysql, you get a .journal file that is not modifiable by chown.
- # The mysql_statedir must not be writable by the mysql user under any
+ # The mariadb_statedir must not be writable by the mysql user under any
  # circumstances as it contains scripts that are executed by root.
  set +e
- chown -R 0:0 $mysql_statedir
- find $mysql_datadir ! -uid "$(id -u mysql)" -print0 | xargs -0 -r chown mysql
- chown -R mysql:adm $mysql_logdir
- chmod 2750 $mysql_logdir
+ chown -R 0:0 $mariadb_statedir
+ find $mariadb_datadir ! -uid "$(id -u mysql)" -print0 | xargs -0 -r chown mysql
+ chown -R mysql:adm $mariadb_logdir
+ chmod 2750 $mariadb_logdir
  set -e
 
  ## Set the correct filesystem ownership for the PAM v2 plugin
@@ -176,14 +176,14 @@ EOF
  chown mysql /usr/lib/mysql/plugin/auth_pam_tool_dir
 
  # This is important to avoid dataloss when there is a removed
- # mysql-server version from Woody lying around which used the same
+ # mariadb-server version from Woody lying around which used the same
  # data directory and then somehow gets purged by the admin.
  db_set mariadb-server/postrm_remove_database false || true
 
  # Clean up old flags before setting new one
- rm -f $mysql_datadir/debian-*.flag
+ rm -f $mariadb_datadir/debian-*.flag
  # Flag data dir to avoid downgrades
- touch "$mysql_datadir/debian-__MARIADB_MAJOR_VER__.flag"
+ touch "$mariadb_datadir/debian-__MARIADB_MAJOR_VER__.flag"
 
  # initiate databases. Output is not allowed by debconf :-(
  # This will fail if we are upgrading an existing database; in this case
@@ -205,10 +205,10 @@ EOF
  # --defaults-file option for tools (for the sake of upgrades)
  # and thus need /etc/mysql/debian.cnf to exist, even if it's empty.
  # In the long run the goal is to obsolete this file.
- dc="$mysql_cfgdir/debian.cnf"
- if [ ! -d "$mysql_cfgdir" ]
+ dc="$mariadb_cfgdir/debian.cnf"
+ if [ ! -d "$mariadb_cfgdir" ]
  then
- install -o 0 -g 0 -m 0755 -d $mysql_cfgdir
+ install -o 0 -g 0 -m 0755 -d $mariadb_cfgdir
  fi
  if [ ! -e "$dc" ]
  then
@@ -224,7 +224,7 @@ EOF
  echo "[client]";
  echo "host = localhost";
  echo "user = root";
- echo "[mysql_upgrade]";
+ echo "[mariadb_upgrade]";
  echo "host = localhost";
  echo "user = root";
  echo "# THIS FILE WILL BE REMOVED IN A FUTURE DEBIAN RELEASE.";

debian/mariadb-server.preinst

@@ -26,8 +26,8 @@ fi
 ${DEBIAN_SCRIPT_TRACE:+ echo "#42#DEBUG# RUNNING $0 $*" 1>&2 }
 
 export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin
-mysql_datadir=/var/lib/mysql
-mysql_upgradedir=/var/lib/mysql-upgrade
+mariadb_datadir=/var/lib/mysql
+mariadb_upgradedir=/var/lib/mysql-upgrade
 
 # Try to stop the server in a sane way. If it does not success let the admin
 # do it himself. No database directories should be removed while the server
@@ -68,13 +68,13 @@ max_upgradeable_version=5.7
 # Check if a flag file is found that indicates a previous MariaDB or MySQL
 # version was installed. If multiple flags are found, check which one was
 # the biggest version number.
-for flag in "$mysql_datadir"/debian-*.flag
+for flag in "$mariadb_datadir"/debian-*.flag
 do
 
  # The for loop leaves $flag as the query string if there are no results,
  # so the check below is needed to stop further processing when there are
  # no real results.
- if [ "$flag" = "$mysql_datadir/debian-*.flag" ]
+ if [ "$flag" = "$mariadb_datadir/debian-*.flag" ]
  then
  break
  fi
@@ -109,13 +109,13 @@ then
  # MySQL 8.0 in Ubuntu has a bug in packaging and the file is name wrongly
  # 'debian-5.7.flag', so in case '5.7' was encountered an extra check needs to
  # be done to see is there is a file called undo_001, which is a sign of 8.0.
- if [ "$found_version" == "5.7" ] && [ -f "$mysql_datadir/undo_001" ]
+ if [ "$found_version" == "5.7" ] && [ -f "$mariadb_datadir/undo_001" ]
  then
  # Seems to be a 8.0, flag has wrongly 5.7 (know bug)
  found_version=8.0
  fi
 
- echo "$mysql_datadir: found previous version $found_version"
+ echo "$mariadb_datadir: found previous version $found_version"
 
  if dpkg --compare-versions "$found_version" '>>' "$this_version"
  then
@@ -135,10 +135,10 @@ fi
 # installs), then that file is enough of additional indication to trigger the
 # move of the data directory.
 if [ -z "$found_version" ] &&
- [ -z "$(find $mysql_datadir/debian-*.flag 2> /dev/null)" ] &&
- [ -f "$mysql_datadir/undo_001" ]
+ [ -z "$(find $mariadb_datadir/debian-*.flag 2> /dev/null)" ] &&
+ [ -f "$mariadb_datadir/undo_001" ]
 then
- echo "$mysql_datadir: no server version flag found, assuming MySQL 8.0 data encountered"
+ echo "$mariadb_datadir: no server version flag found, assuming MySQL 8.0 data encountered"
  downgrade_detected=true
  found_version="previous" # Just use dummy name as we don't know real version
 fi
@@ -149,12 +149,12 @@ if [ -n "$downgrade_detected" ]
 then
  db_input critical "mariadb-server/old_data_directory_saved" || true
  db_go
- echo "The file $mysql_datadir/debian-$found_version.flag indicates a" 1>&2
+ echo "The file $mariadb_datadir/debian-$found_version.flag indicates a" 1>&2
  echo "version that cannot automatically be upgraded. Therefore the" 1>&2
- echo "previous data directory will be renamed to $mysql_datadir-$found_version and" 1>&2
- echo "a new data directory will be initialized at $mysql_datadir." 1>&2
+ echo "previous data directory will be renamed to $mariadb_datadir-$found_version and" 1>&2
+ echo "a new data directory will be initialized at $mariadb_datadir." 1>&2
  echo "Please manually export/import your data (e.g. with mysqldump) if needed." 1>&2
- mv -f "$mysql_datadir" "$mysql_datadir-$found_version"
+ mv -f "$mariadb_datadir" "$mariadb_datadir-$found_version"
  # Also move away the old debian.cnf file that included credentials that are
  # no longer valid. If none existed, ignore error and let dpkg continue.
  mv -f /etc/mysql/debian.cnf "/etc/mysql/debian.cnf-$found_version" || true
@@ -213,33 +213,33 @@ do
  checkdir=$(eval echo "$"$dir)
  if [ -L "$checkdir" ]; then
  # Use mkdir option 'Z' to create with correct SELinux context.
- mkdir -pZ "$mysql_upgradedir"
- cp -dT "$checkdir" "$mysql_upgradedir/$dir.link"
+ mkdir -pZ "$mariadb_upgradedir"
+ cp -dT "$checkdir" "$mariadb_upgradedir/$dir.link"
  fi
 done
 
 # creating mysql home directory
-if [ ! -d $mysql_datadir ] && [ ! -L $mysql_datadir ]
+if [ ! -d $mariadb_datadir ] && [ ! -L $mariadb_datadir ]
 then
  # Use mkdir option 'Z' to create with correct SELinux context.
- mkdir -Z $mysql_datadir
+ mkdir -Z $mariadb_datadir
 fi
 
 # Check if MariaDB datadir is available if not fails.
 # There should be symlink or directory available or something will fail.
-if [ -d "$mysql_datadir" ] || [ -L "$mysql_datadir" ]
+if [ -d "$mariadb_datadir" ] || [ -L "$mariadb_datadir" ]
 then
  # As preset blocksize of GNU df is 1024 then available bytes is $df_available_blocks * 1024
  # 4096 blocks is then lower than 4 MB
- df_available_blocks="$(LC_ALL=C BLOCKSIZE='' df --output=avail "$mysql_datadir" | tail -n 1)"
+ df_available_blocks="$(LC_ALL=C BLOCKSIZE='' df --output=avail "$mariadb_datadir" | tail -n 1)"
  if [ "$df_available_blocks" -lt "4096" ]
  then
- echo "ERROR: There's not enough space in $mysql_datadir/" 1>&2
+ echo "ERROR: There's not enough space in $mariadb_datadir/" 1>&2
  db_stop
  exit 1
  fi
 else
- echo "ERROR: There's no directory or symlink available: $mysql_datadir/" 1>&2
+ echo "ERROR: There's no directory or symlink available: $mariadb_datadir/" 1>&2
  db_stop
  exit 1 
 fi
@@ -252,8 +252,8 @@ fi
 # The "set +e" is necessary as e.g. a ".journal" of a ext3 partition is
 # not chgrp'able (#318435).
 set +e
-find $mysql_datadir ! -uid "$(id -u mysql)" -print0 | xargs -0 -r chown mysql
-find $mysql_datadir -follow -not -group mysql -print0 2>/dev/null \
+find $mariadb_datadir ! -uid "$(id -u mysql)" -print0 | xargs -0 -r chown mysql
+find $mariadb_datadir -follow -not -group mysql -print0 2>/dev/null \
  | xargs -0 --no-run-if-empty chgrp mysql
 set -e