HIVE-2574 backporting for offline build

build-common.xml

@@ -77,15 +77,7 @@
   <condition property="offline">
     <istrue value="${is-offline}"/>
   </condition>
-  <condition property="ivy.cache.name" value="offline" else="online">
-    <isset property="offline"/>
-  </condition>
-  <condition property="ivy.skip">
-    <and>
-      <isset property="offline"/>
-      <available file="${build.dir.hadoop}/hadoop-${hadoop.version.ant-internal}.installed"/>
-    </and>
-  </condition>
+  <import file="build-offline.xml"/>
 
   <!--this is the naming policy for artifacts we want pulled down-->
   <property name="ivy.artifact.retrieve.pattern" value="[conf]/[artifact]-[revision](-[classifier]).[ext]"/>

build-offline.xml

@@ -0,0 +1,37 @@
+<?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.
+-->
+
+<!-- common imports for ivy offline mode -->
+<project name="hiveoffline">
+  <condition property="ivy.cache.name" value="offline" else="online">
+    <isset property="offline"/>
+  </condition>
+  <condition property="ivy.checkmodified" value="false" else="true">
+    <isset property="offline"/>
+  </condition>
+  <condition property="ivy.changingPattern" value="" else=".*SNAPSHOT">
+    <isset property="offline"/>
+  </condition>
+  <condition property="ivy.skip">
+    <and>
+      <isset property="offline"/>
+      <available file="${build.dir.hadoop}/hadoop-${hadoop.version.ant-internal}.installed"/>
+    </and>
+  </condition>
+</project>

build.xml

@@ -66,16 +66,7 @@
     <isset property="offline"/>
   </condition>
 
-  <condition property="ivy.cache.name" value="offline" else="online">
-    <isset property="offline"/>
-  </condition>
-
-  <condition property="ivy.skip">
-    <and>
-      <isset property="offline"/>
-      <available file="${build.dir.hadoop}/hadoop-${hadoop.version.ant-internal}.installed"/>
-    </and>
-  </condition>
+  <import file="build-offline.xml"/>
 
   <condition property="staging">
     <equals arg1="${mvn.publish.repo}" arg2="staging"/>

ivy/ivysettings.xml

@@ -49,7 +49,8 @@
 
     <ibiblio name="maven2" root="${repo.maven.org}" pattern="${maven2.pattern.ext}" m2compatible="true"/>
     <ibiblio name="apache-snapshot" root="${snapshot.apache.org}" m2compatible="true"
-        checkmodified="true" changingPattern=".*SNAPSHOT"/>
+             checkmodified="${ivy.checkmodified}" 
+             changingPattern="${ivy.changingPattern}"/>
 
     <url name="datanucleus-repo" m2compatible="true">
       <artifact pattern="${datanucleus.repo}/[organisation]/[module]/[revision]/[module]-[revision].[ext]"/>
@@ -60,7 +61,9 @@
        <ivy pattern="${repo.dir}/org/apache/hadoop/[module]/[revision]/[module]-[revision].pom"/>
     </filesystem>
 
-    <chain name="default" dual="true" returnFirst="true" checkmodified="true" changingPattern=".*SNAPSHOT">
+    <chain name="default" dual="true" returnFirst="true" 
+           checkmodified="${ivy.checkmodified}" 
+           changingPattern="${ivy.changingPattern}">
       <resolver ref="apache-snapshot"/>
       <resolver ref="maven2"/>
       <resolver ref="datanucleus-repo"/>
@@ -86,7 +89,8 @@
      <module organisation="org.apache.hadoop" name="hadoop-*" resolver="${resolvers}"/>
   </modules>
 
-  <caches default="${ivy.cache.name}">
+  <caches default="${ivy.cache.name}" 
+          resolutionCacheDir="${build.ivy.dir}/resolution-cache">
     <cache name="online"/>
     <!--
          Set the defaultTTL to 1000 days. Ivy 2.1.0 allows you to