90 lines
2.8 KiB
Bash
Executable File
90 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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# this script will look for upgrade scripts in
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# /usr/share/alternc/install/upgrades and execute them based on the
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# extension
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#
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# an upgrade file is considered only if its basename is a version
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# number greater than the $oldvers argument
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# remove version from filename by stripping the extension
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strip_ext() {
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echo $1 | sed -e 's/\.[^.]*$//' -e 's/[a-z_]*$//'
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}
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# find the version from a filename by stripping everything but the extension
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get_ext() {
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echo $1 | sed 's/^.*\.\([^.]*\)$/\1/'
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}
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# Reading the current version in the DB.
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# If the DB exist but the alternc_status table doesn't, we will initialize it below
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# In that case we search where we upgrade from in /var/lib/alternc/backups/lastversion from debian.postinstall script
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oldvers="`mysql --defaults-file=/etc/alternc/my.cnf --skip-column-names -e "SELECT value FROM alternc_status WHERE name='alternc_version'" 2>/dev/null||true`"
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if [ -z "$oldvers" ]
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then
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# no version number, we check from /var/lib/alternc
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if [ -f "/var/lib/alternc/backups/lastversion" ]
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then
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oldvers="`cat /var/lib/alternc/backups/lastversion`"
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# this is a *version number*, not a *last upgrade script* we have this *border case*
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if [ "$oldvers" = "3.1" ]
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then
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oldvers="3.1.0~c.sh"
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fi
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else
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echo "##############################################"
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echo "# NO VERSION FOUND TO UPGRADE FROM, ABORTING #"
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echo "##############################################"
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exit 1
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fi
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fi
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if [ "$oldvers" = '<unknown>' ]
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then
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# this is not an upgrade
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exit 0
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fi
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# Thanks to that, we handle alternc older than 3.1.0~b.php
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mysql --defaults-file=/etc/alternc/my.cnf -e "CREATE TABLE IF NOT EXISTS alternc_status (name VARCHAR(48) NOT NULL DEFAULT '',value LONGTEXT NOT NULL,PRIMARY KEY (name),KEY name (name) ) ENGINE=MyISAM DEFAULT CHARSET=latin1;"
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mysql --defaults-file=/etc/alternc/my.cnf -e "INSERT IGNORE INTO alternc_status SET name='alternc_version',value='$oldvers';"
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. /etc/alternc/local.sh
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# the upgrade script we are considering
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extensions="*.sql *.sh *.php"
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cd /usr/share/alternc/install/upgrades
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for file in $( ls $extensions | sort -n ) ; do
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if [ -r $file ]; then
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# the version in the filename
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upvers=`strip_ext $file`
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# the extension
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ext=`get_ext $file`
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if dpkg --compare-versions $upvers gt $oldvers; then
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echo "Running upgrade script $file"
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# run the proper program to interpret the upgrade script
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case "$ext" in
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sql)
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( echo "BEGIN;"
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cat $file
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echo "UPDATE alternc_status SET value='$file' WHERE name='alternc_version';"
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echo "COMMIT;"
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) | mysql --defaults-file=/etc/alternc/my.cnf -f
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;;
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php)
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php -q $file
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;;
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sh)
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bash $file
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;;
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*)
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echo "skipping $file, not recognized !"
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;;
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esac
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fi
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fi
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done
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