221890 Update build scripts with comments
diff --git a/releng.control/checkout.xml b/releng.control/checkout.xml
index 292b53a..c931f22 100644
--- a/releng.control/checkout.xml
+++ b/releng.control/checkout.xml
@@ -45,7 +45,6 @@
     <!-- end required defaults-if-not-set -->
 
 
-
     <!-- standard computed properties. Should not have to be changed. -->
     <property
         name="mapCvsRoot"
@@ -55,7 +54,9 @@
         value="${env.PROJECT_BUILDERS}/${projectname}" />
     <echo
         message="projectname: ${projectname}" />
-    <target
+
+	<!-- main  -->
+	<target
         name="checkout"
         if="projectname">
         <!-- we always check and init the builder -->
@@ -65,6 +66,10 @@
         <antcall
             target="${projectname}" />
     </target>
+	
+	<!--
+		Checkout from CVS corresponding map files for each of the projects
+	-->
     <target
         name="wtp-R3.0-N">
     </target>
@@ -330,11 +335,19 @@
         <property
             file="${codir}/${env.RELENG}/maps/build.cfg" />
         <fail unless="builderVersion" message="Could not get builderVersion. Probably could not checkout build.cfg" />
-        <delete
+
+    	<!--
+    		deleting WTP builder project
+    		location: <BUILD HOME>/projectBuilders/<project>/webtools.releng/releng.wtpbuilder
+    	-->
+    	<delete
             dir="${codir}/${env.RELENG_BUILDER}"
             failonerror="false" />
         <echo
             message="Version tag for ${env.RELENG_BUILDER} is: ${builderVersion}" />
+    	<!--
+    		Get a new version of the wtpbuild project from CVS, version comes from build.cfg map file
+    	-->
         <cvs
             quiet="${env.CVS_QUIET}"
             reallyquiet="${env.CVS_REALLY_QUIET}"
@@ -343,6 +356,11 @@
             dest="${codir}"
             tag="${builderVersion}" />
     </target>
+	
+    <!--
+        set doClean property
+        checkout.build.clean is set in checkout.properties from the project properties directory        
+	-->
     <target
         name="check.clean">
         <echo
@@ -356,6 +374,12 @@
                 casesensitive="false" />
         </condition>
     </target>
+	
+    <!--
+        checkout releng, wst, jst map files from from CVS 
+        CVS src: webtools.map/releng/maps files
+        dest: <BUILD HOME>/projectBuilders/<project>/webtools.maps/releng/maps
+	-->
     <target
         name="initBuilders"
         depends="check.clean"