to make the diff

How to export from SVN repository only modified files between two tags with Ant?

here a simple script... URL1 and URL2 are the urls of the tags, "tmpDir" is a temporary folder(write permissions are necessary), "targetDir" is the destination folder.

USAGE: Simply run ant in the folder where you put the script (save the script as build.xml)

	<project name="export diff" basedir="." default="diff">
	<property name="tmpDir" value="/Temp" />
	<property name="targetDir" value="/Target" />
	<!-- svn -->
	<property name="svn_client" value="svn" />
	<property name="Url1" value="http://svn.apache.org/repos/asf/ant/core/tags/ANT_183/" />
	<property name="Url2" value="http://svn.apache.org/repos/asf/ant/core/tags/ANT_184/" />
	<taskdef resource="net/sf/antcontrib/antlib.xml" />
	<target name="export_new" description="checkout del target" depends="">
	<echo message=" - export ${Url2} in ${basedir}${tmpDir}" />
	<echo message=" from : ${Url2}" />
	<echo message=" to : ${basedir}${tmpDir}" />
	<exec executable="${svn_client}" failonerror="true">
	<arg value="export" />
	<arg value="--force" />
	<arg value="${Url2}" />
	<arg value="${basedir}${tmpDir}" />
	</exec>
	</target>
	<target name="diff" description="esegue la differenza tra ${Url2} e ${Url1}" depends="export_new">
	<echo message=" - diff --summarize ${Url1} ${Url2}" />
	<exec executable="${svn_client}" output="${basedir}/diff.patch" failonerror="true">
	<arg value="diff" />
	<arg value="--summarize" />
	<arg value="${Url1}" />
	<arg value="${Url2}" />
	</exec>
	<loadfile srcFile="${basedir}/diff.patch" property="file_diff" failonerror="true">
	<filterchain>
	<tokenfilter>
	<replacestring from="M " to="" />
	<replacestring from="A " to="" />
	<replacestring from="MM " to="" />
	<replacestring from=" " to="" />
	<replacestring from="${Url1}" to="" />
	</tokenfilter>
	<striplinecomments>
	<comment value="[exec]D" />
	</striplinecomments>
	<suffixlines suffix="," />
	<striplinebreaks />
	<deletecharacters chars="\n" />
	</filterchain>
	</loadfile>
	<condition property="there_is_file">
	<isset property="file_diff" />
	</condition>
	<if>
	<equals arg1="${there_is_file}" arg2="true" />
	<then>
	<antcall target="copy_filediff_to_dir">
	<param name="file_diff" value="${file_diff}" />
	</antcall>
	</then>
	<else>
	<echo message="No differences between ${URL1} e ${URL2}" />
	</else>
	</if>
	</target>
	<target name="copy_filediff_to_dir" if="there_is_file" description="copia i file sul server" depends="">
	<echo message=" - copy different files to dir ${targetDir}" />
	<echo message="${file_diff}" />
	<echo message=" - copy modified file - " />
	<echo message=" from : ${basedir}${tmpDir}" />
	<echo message=" to : ${targetDir}/" />
	<mkdir dir="${basedir}${targetDir}" />
	<for list="${file_diff}" param="letter">
	<sequential>
	<echo message="@{letter}" />
	<copy todir="${basedir}${targetDir}" filtering="true" verbose="true" failonerror="true">
	<fileset dir="${basedir}${tmpDir}">
	<include name="@{letter}" />
	<exclude name="*/*.cs" />
	</fileset>
	</copy>
	</sequential>
	</for>
	<delete dir="${basedir}${tmpDir}" />
	</target>
	</project>

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