Updating checkstyle rule in onos.bucklet

Change-Id: I16422bf02b55572d82d9463cb87c678545b79793

@@ -68,7 +68,7 @@ def osgi_jar(
       **kwargs
   )
 
-  cp = ':'.join(['$(classpath %s)' % c for c in deps])
+  cp = ':'.join(['$(classpath %s)' % c for c in deps]) if deps else '""'
 
   args = ( '$(location :%s)' % bare_jar_name, #input jar
            '$OUT',                            #output jar
@@ -111,6 +111,8 @@ def osgi_jar(
   ### Checkstyle
   if srcs:
     chk_cmd = '#!/bin/sh\n'
+    # FIXME hack to add dependency on suppressions-xml in the checkstyle rule
+    chk_cmd += 'FOO="$(location //tools/build/conf:suppressions-xml)"\n'
     base = get_base_path()
     chk_cmd += ' '.join(( 'java -jar $(location //lib:checkstyle)',
                          '-c $(location //tools/build/conf:checkstyle-xml)',
@@ -118,6 +120,7 @@ def osgi_jar(
     chk_cmd += ' | grep -E "^[^: ]*:\d+:\d+: error:"'
     chk_cmd += ' | sed "s#^.*%s/#%s:#g"\n' % (base, name)
     chk_cmd += 'test ${PIPESTATUS[0]} -eq 0\n' # status of java command
+
     genrule(
       name = name + '-checkstyle-sh',
       bash = "echo '%s' > $OUT && chmod +x $OUT" % chk_cmd,

@@ -2,7 +2,7 @@ checkstyle_source = 'src/main/resources/onos/checkstyle.xml'
 suppression_source = 'src/main/resources/onos/suppressions.xml'
 
 xml = ('<module name="SuppressionFilter">'
-       '<property name="file" value="$(location :suppressions.xml)"/>'
+       '<property name="file" value="$(location :suppressions-xml)"/>'
        '</module>' )
 cmd = "sed 's#<module name=\"Checker\">#<module name=\"Checker\">%s#' %s > $OUT" % ( xml, checkstyle_source )
 
@@ -16,6 +16,7 @@ genrule(
 
 #FIXME location suppression.xml does not trigger this rule
 export_file(
-  name = 'suppressions.xml',
+  name = 'suppressions-xml',
   src = suppression_source,
+  visibility = [ 'PUBLIC' ]
 )