DbmRollbackCountSql.groovy

/* Copyright 2006-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @author <a href='mailto:burt@burtbeckwith.com'>Burt Beckwith</a>
 */

includeTargets << new File("$databaseMigrationPluginDir/scripts/_DatabaseMigrationCommon.groovy")

target(dbmRollbackCountSql: 'Writes SQL to roll back the last <value> change sets to STDOUT') {
	depends dbmInit

	def count = argsList[0]
	if (!count) {
		errorAndDie "The $hyphenatedScriptName script requires a change set count argument"
	}

	if (!count.isNumber()) {
		errorAndDie "The change set count argument '$count' isn't a number"
	}

	if (!okToWrite(1)) return

	doAndClose {
		liquibase.rollback count.toInteger(), contexts, newOutputStreamWriter(1)
	}
}

setDefaultTarget dbmRollbackCountSql