This should shave a bit off the build time for a full clean build.

For me, it shaved 5 min off a full clean build.
See http://www.nabble.com/-DEV---VOTE--Stephen-to-optimize-hosted-plugin-pom.xml-files-tf4148535.html


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@3870 71c3de6d-444a-0410-be80-ed276b4c234a

core/pom.xml

@@ -93,6 +93,109 @@
         <build.version>${version}</build.version>
       </properties>
     </profile>
+    <profile>
+      <id>hudson-libs-local</id>
+      <!-- if we have the libs checked out of CVS, use them directly -->
+      <activation>
+        <file>
+          <exists>main/lib</exists>
+          <!-- this is relative to the current directory where you start
+               maven.  Most likely if building for the first time
+               you will be in ../.. relative to this pom.xml. So we 
+               use that path in order to speed you up.
+          -->
+        </file>
+      </activation>
+      <repositories>
+        <!-- checking the file system is fastest of all -->
+        <repository>
+          <id>hudson-libs</id>
+          <url>file:main/lib</url>
+          <layout>legacy</layout>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>always</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put central second to speed majority artifact resolution -->
+        <repository>
+          <id>central</id>
+          <url>http://repo1.maven.org/maven2</url>
+          <releases>
+            <enabled>true</enabled>
+            <!-- only look for jars here when they are not present locally -->
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- last, but not least -->
+        <repository>
+          <id>java.net2</id>
+          <url>http://download.java.net/maven/2/</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+    </profile>
+    <profile>
+      <id>hudson-libs-remote</id>
+      <!-- otherwise, we'll have to use the slower route -->
+      <activation>
+        <file>
+          <missing>main/lib</missing>
+        </file>
+      </activation>
+      <repositories>
+        <!-- put central first to speed majority artifact resolution -->
+        <repository>
+          <id>central</id>
+          <url>http://repo1.maven.org/maven2</url>
+          <releases>
+            <enabled>true</enabled>
+            <!-- only look for jars here when they are not present locally -->
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put java.net2 second, as it's faster than the https CVS access -->
+        <repository>
+          <id>java.net2</id>
+          <url>http://download.java.net/maven/2</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put hudson-libs last as it is the slowest to access -->
+        <repository>
+          <id>hudson-libs</id>
+          <url>https://hudson.dev.java.net/source/browse/*checkout*/hudson/hudson/main/lib</url>
+          <layout>legacy</layout>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+    </profile>
   </profiles>
 
   <dependencies>
@@ -259,34 +362,4 @@
     </dependency>
   </dependencies>
 
-  <repositories>
-    <repository>
-      <id>hudson-libs</id>
-      <url>https://hudson.dev.java.net/source/browse/*checkout*/hudson/hudson/main/lib</url>
-      <layout>legacy</layout>
-    </repository>
-    <repository>
-      <id>hudson-libs</id>
-      <url>https://hudson.dev.java.net/source/browse/*checkout*/hudson/hudson/main/lib</url>
-      <layout>legacy</layout>
-      <releases>
-        <enabled>true</enabled>
-        <updatePolicy>never</updatePolicy>
-      </releases>
-      <snapshots>
-        <enabled>false</enabled>
-      </snapshots>
-    </repository>
-    <repository>
-      <id>java.net2</id>
-      <url>http://download.java.net/maven/2/</url>
-      <releases>
-        <enabled>true</enabled>
-        <updatePolicy>never</updatePolicy>
-      </releases>
-      <snapshots>
-        <enabled>false</enabled>
-      </snapshots>
-    </repository>
-  </repositories>
 </project>

war/pom.xml

@@ -293,19 +293,105 @@
   <properties>
     <HUDSON_HOME>${basedir}/work</HUDSON_HOME>
   </properties>
-  
-  <repositories>
-    <repository>
-      <id>hudson-libs</id>
-      <url>https://hudson.dev.java.net/source/browse/*checkout*/hudson/hudson/main/lib</url>
-      <layout>legacy</layout>
-      <releases>
-        <enabled>true</enabled>
-        <updatePolicy>never</updatePolicy>
-      </releases>
-      <snapshots>
-        <enabled>false</enabled>
-      </snapshots>
-    </repository>
-  </repositories>
+
+  <profiles>
+    <profile>
+      <id>hudson-libs-local</id>
+      <!-- if we have the libs checked out of CVS, use them directly -->
+      <activation>
+        <file>
+          <exists>main/lib</exists>
+        </file>
+      </activation>
+      <repositories>
+        <!-- checking the file system is fastest of all -->
+        <repository>
+          <id>hudson-libs</id>
+          <url>file:main/lib</url>
+          <layout>legacy</layout>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>always</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put central second to speed majority artifact resolution -->
+        <repository>
+          <id>central</id>
+          <url>http://repo1.maven.org/maven2</url>
+          <releases>
+            <enabled>true</enabled>
+            <!-- only look for jars here when they are not present locally -->
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- last, but not least -->
+        <repository>
+          <id>java.net2</id>
+          <url>http://download.java.net/maven/2</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+    </profile>
+    <profile>
+      <id>hudson-libs-remote</id>
+      <!-- otherwise, we'll have to use the slower route -->
+      <activation>
+        <file>
+          <missing>main/lib</missing>
+        </file>
+      </activation>
+      <repositories>
+        <!-- put central first to speed majority artifact resolution -->
+        <repository>
+          <id>central</id>
+          <url>http://repo1.maven.org/maven2</url>
+          <releases>
+            <enabled>true</enabled>
+            <!-- only look for jars here when they are not present locally -->
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put java.net2 second, as it's faster than the https CVS access -->
+        <repository>
+          <id>java.net2</id>
+          <url>http://download.java.net/maven/2/</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+        <!-- put hudson-libs last as it is the slowest to access -->
+        <repository>
+          <id>hudson-libs</id>
+          <url>https://hudson.dev.java.net/source/browse/*checkout*/hudson/hudson/main/lib</url>
+          <layout>legacy</layout>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+    </profile>
+  </profiles>
 </project>