This would be extremely useful, even if it were as simple as
[x] Use switch
[ ] Use update

in the configuration of each job.

Parameterized builds for testing individual feature workspaces, which generally change a minimal number of the artifacts in the repository, take far longer than necessary due to the need to retrieve a largish repository before beginning each build.

The "development testing" Hudson jobs we use do not cause any artifacts to be committed back to the repository, so there is no danger of merge conflicts through local modifications... the ability to select 'switch' vs 'update' on a per-job basis would greatly magnify the utility enabled by the tool.

I also think this would be very good. We use to tag our builds as TEST or PROD, so we know this tagged version is what is going to TEST/PROD.

In order to do that, I always have to:

• disable hudson job for the TEST or PROD task
• remove the old TEST or PROD tag (svn remove)
• create a new tag (usually, svn copy from dev branch)
• go to job build directory and manually run svn switch
• enable hudson job again

Enabling hudson to switch would really be a good thing.

Attached patch implements "Switch" option for "Update".

Thank you for the patch, and my apologies for the delay.

In Hudson, we try hard to avoid providing too many switches, and I'm afraid this change doesn't pass that test.

My proposal is to look at the SVNInfo.getRepositoryRootURL() to determine if the current checked-out copy and the checkout URL shares the same repository root, and if so, use "svn switch" instead of full-blown "svn checkout" in IsUpdatableTask.

In this way, no user configuration is necessary.

Attached patch implements "svn switch" when doing update if repository root is not changed.

subversion2.diff is incorrect. The following error happens when matrix project is built:

Started by upstream project "platform-release-build" build number 28
Building remotely on qa-poa-as4-x86
hudson.util.IOException2: remote file operation failed: /home/buildbot/hudson/workspace/platform-release-build/label/qa-poa-as4-x86 at hudson.remoting.Channel@380dc55c:qa-poa-as4-x86
at hudson.FilePath.act(FilePath.java:749)
at hudson.FilePath.act(FilePath.java:735)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:597)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:544)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1044)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:479)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:411)
at hudson.model.Run.run(Run.java:1257)
at hudson.matrix.MatrixRun.run(MatrixRun.java:130)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:127)
Caused by: java.io.IOException: Unable to serialize hudson.FilePath$FileCallableWrapper@77fc501e
at hudson.remoting.UserRequest.serialize(UserRequest.java:162)
at hudson.remoting.UserRequest.<init>(UserRequest.java:62)
at hudson.remoting.Channel.call(Channel.java:554)
at hudson.FilePath.act(FilePath.java:742)
... 10 more
Caused by: java.io.NotSerializableException: hudson.matrix.MatrixConfiguration
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at hudson.remoting.UserRequest._serialize(UserRequest.java:151)
at hudson.remoting.UserRequest.serialize(UserRequest.java:160)
... 13 more

Fixed version is attached