<?xml version="1.0"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You 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.
-->
<!--
  =======================================================================
   Use Apache Ant to generate a patch file for Apache Forrest.
  =======================================================================
  
  To run it try:
  ant -f patch.xml
-->
<project name="create-patch" default="patchpackage" basedir="../..">
  <property environment="env"/>
  <property name="patch.package" value="patch.tar.gz"/>
  <property name="patch.file" value="patch.txt"/>
  <condition property="svn.found">
    <or>
      <available file="svn" filepath="${env.PATH}"/>
      <available file="svn.exe" filepath="${env.PATH}"/>
      <available file="svn.exe" filepath="${env.Path}"/>
    </or>
  </condition>
  <target name="createpatch">
    <fail unless="svn.found"
              message="You need a version of svn to create the patch"/>
    <exec executable="svn" output="${patch.file}">
      <arg value="diff"/>
    </exec>
  </target>
  <target name="newfiles" depends="createpatch">
    <delete file="${patch.package}"/>
    <exec executable="svn" output="${patch.file}.tmp">
      <arg value="status"/>
    </exec>
<!-- the status columns make all lines invalid filenames (ignored by ant)
            we remove the status columns for the new files so the only valid
            filenames in the list are new files
        -->
    <replace file="${patch.file}.tmp" token="?      " value=""/>
    <tstamp>
      <format property="year" pattern="yyyy"/>
    </tstamp>
    <fileset dir="${basedir}"
            includesfile="${patch.file}.tmp"
            excludes="${patch.file}.tmp,${patch.file}"
            id="no.copyright.set">
      <not>
        <and>
          <contains text="Copyright"/>
          <contains text="Apache Software Foundation"/>
          <contains text="${year}"/>
        </and>
      </not>
    </fileset>
    <pathconvert pathsep="${line.separator}"
            setonempty="false"
            property="no.copyright"
            refid="no.copyright.set"/>
    <fail if="no.copyright"
            message="Please include the Apache Copyright header (for ${year}) to these files and retry:${line.separator}${no.copyright}"/>
  </target>
  <target name="patchpackage" depends="newfiles">
    <tar basedir="${basedir}"
            tarfile="${patch.package}"
            compression="gzip"
            includesfile="${patch.file}.tmp"
            excludes="${patch.file}.tmp"/>
    <delete file="${patch.file}.tmp"/>
    <echo>
Attach the following file to a new issue in the Forrest issue tracker
(http://issues.apache.org/jira/secure/CreateIssue!default.jspa)
    ${patch.package} if you have added new files
    ${patch.file} if you have only modified existing files
(Please review the patch first, to ensure that you have not added extra stuff.)
        </echo>
  </target>
</project>
