SPRNET-1437 introduce behavior to generate nuget packages on PACKAGE build task

Spring.build

@@ -962,6 +962,7 @@ Commandline Examples:
 
 
     <call target="package-release-files"/>
+	<call target="package-nuget" />
 
   </target>
 
@@ -1895,5 +1896,81 @@ Commandline Examples:
       </properties>
     </nant>
   </target>
+  
+  
+  <target name="check-nuget-package-dir">
+    <fail message="The NuGet package directory has not been specified."
+          if="${not property::exists('nuget.package.dir')}"/>
+    <mkdir dir="${nuget.package.dir}"/>
+  </target>
+  
+  
+<target name="clean-nuget-package-dir" depends="check-nuget-package-dir" description="Cleans the NuGet package directory">
+    <echo message="Cleaning the ${nuget.package.dir} NuGet package directory."/>
+    <delete dir="${nuget.package.dir}" if="${directory::exists(nuget.package.dir)}"/>
+    <mkdir dir="${nuget.package.dir}"/>
+  </target>
+  
+<target name="package-nuget" depends="update-nuspec-metadata">
+
+
+	<foreach item="File" property="filename">
+		<in>
+			<items basedir="${spring.basedir}/src/spring">
+				<include name="**/*.nuspec" />
+			</items>
+		</in>
+		<do>
+			<echo message="Generating NuGet Package from nuspec file: ${filename}" />  
+
+		
+    
+    <exec program="${tool.dir}\NuGet\NuGet.exe" workingdir="${spring.basedir}" verbose="true" failonerror="false">
+      <arg value="pack" />
+      <arg value="${filename}" />
+	  <arg value="-Version" />
+	  <arg value="${package.version}" />
+	  <arg value="-OutputDirectory" />
+	  <arg value="${nuget.package.dir}" />
+    </exec>
+		</do>
+	</foreach>
+</target>
+
+<target name="update-nuspec-metadata">  
+
+	<property name="nuget.package.dir" value="${spring.basedir}\NuGet-Packages" />
+
+	<call target="clean-nuget-package-dir" />
+	<call target="check-package-version" />
+	<foreach item="File" property="filename">
+		<in>
+			<items basedir="${spring.basedir}/src/spring">
+				<include name="**/*.nuspec" />
+			</items>
+		</in>
+		<do>
+			<echo message="Processing nuspec file: ${filename}" />
+			<!-- update the actual version number for the actual package -->
+			<!-- disabled: NuGet 1.3 introduced passing "-version" command line arg to override this value so no longer need the XMLPOKE call
+			<xmlpoke file="${filename}" xpath="/n:package/n:metadata/n:version" value="${package.version}">
+				<namespaces>
+					<namespace prefix="n" uri="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd" />
+				</namespaces>
+			</xmlpoke>
+			-->
+			
+			<!--
+				update the version number of the dependent packages; assumes all Spring.* packages are updated at the same time to the same version
+				NOTE: must set fail-on-errror to false b/c Spring.Core (ex.) has no Spring.* deps and so this XPATH expr. won't find a match in that case
+			-->
+			<xmlpoke file="${filename}" xpath="/n:package/n:metadata/n:dependencies/n:dependency[starts-with(@id, 'Spring.')]/@version" value="${package.version}" failonerror="false" >
+				<namespaces>
+					<namespace prefix="n" uri="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd" />
+				</namespaces>
+			</xmlpoke>
+		</do>
+	</foreach>
+</target>
 
 </project>