Switch to ignore post-commit hook in SCM polling triggers [FIXED JENKINS-6846]

changelog.html

@@ -58,6 +58,10 @@ Upcoming changes</a>
   <li class=bug>
     Slave's Name should be trimmed of spaces at the beginning and end of the Name on Save.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-15836">issue 15836</a>)
+  <li class=rfe>
+    Added new switch to ignore post-commit hooks in SCM polling triggers.
+    This requires that the SCM plugin supports this feature, too!
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-6846">issue 6846</a>)
 
 </ul>
 </div><!--=TRUNK-END=-->

core/src/main/java/hudson/triggers/SCMTrigger.java

@@ -73,9 +73,28 @@ import static java.util.logging.Level.*;
  * @author Kohsuke Kawaguchi
  */
 public class SCMTrigger extends Trigger<SCMedItem> {
-    @DataBoundConstructor
+    
+    private boolean ignorePostCommitHooks;
+    
     public SCMTrigger(String scmpoll_spec) throws ANTLRException {
+        this(scmpoll_spec, false);
+    }
+    
+    @DataBoundConstructor
+    public SCMTrigger(String scmpoll_spec, boolean ignorePostCommitHooks) throws ANTLRException {
         super(scmpoll_spec);
+        this.ignorePostCommitHooks = ignorePostCommitHooks;
+    }
+    
+    /**
+     * This trigger wants to ignore post-commit hooks.
+     * <p>
+     * SCM plugins must respect this and not run this trigger for post-commit notifications.
+     * 
+     * @since 1.493
+     */
+    public boolean isIgnorePostCommitHooks() {
+        return this.ignorePostCommitHooks;
     }
 
     @Override

core/src/main/resources/hudson/triggers/SCMTrigger/config.jelly

@@ -27,4 +27,7 @@ THE SOFTWARE.
   <f:entry title="${%Schedule}" help="/descriptor/hudson.triggers.TimerTrigger/help/spec">
     <f:textarea name="scmpoll_spec" checkUrl="'${rootURL}/trigger/TimerTrigger/check?value='+encodeURIComponent(this.value)" value="${instance.spec}"/>
   </f:entry>
+  <f:entry field="ignorePostCommitHooks" title="${%Ignore post-commit hooks}">
+    <f:checkbox />
+  </f:entry>
 </j:jelly>

core/src/main/resources/hudson/triggers/SCMTrigger/help-ignorePostCommitHooks.html

+<div>
+  Ignore changes notified by SCM post-commit hooks.
+<p>
+  This can be useful if you want to prevent some long-running jobs (e.g. reports) starting because of every commit, but still want to
+  run them periodic if SCM changes have occurred.
+<p>
+  Note that this option needs to be supported by the SCM plugin, too! The subversion-plugin supports this since version 1.44. 
+</div>
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