IIUC you're using a Pipeline script to use the core Jenkins APIs? If so,
IMHO it's going to fail ultimately.
Seeing a MasterToSlaveFileCallable usage, again IIUC, from Pipeline code
makes me cringe.
Pipeline is designed to be an orchestration language for your Pipeline, not
offer end-user interaction with Jenkins core.
If you wish to write a pipeline step and get tight integration with Jenkins
internals, which can be totally legit, then you are in a case where writing
a Jenkins plugin for this would likely be much better.
My 2 cents.
2018-02-27 9:38 GMT+01:00 'Richard Hierlmeier' via Jenkins Users <
jenkinsci-users@googlegroups.com>:
>
> I like to perform in a custom pipeline step some file operations on the
> slave node
>
> The pipeline step calls the method doRemote:
>
> def doRemote() {
> def repoDir = createFilePath("dir_in_repo")
> def callable = new MasterToSlaveFileCallable<Integer>() {
>
> private static final long serialVersionUID = 1;
>
> public Integer invoke(File rootDirectory, VirtualChannel
> channel) throws IOException, InterruptedException {
> def count = 0
> if(rootDirectory.exists()) {
> // TODO
> }
> return 0
> }
> };
> def count = repoDir.act(callable);
> }
>
> def createFilePath(path) {
> if (env['NODE_NAME'] == null) {
> error "envvar NODE_NAME is not set, probably not inside an node
> {} or running an older version of Jenkins!";
> } else if (env['NODE_NAME'].equals("master")) {
> return new FilePath(path);
> } else {
> return new FilePath(Jenkins.getInstance().getComputer(env[
> 'NODE_NAME']).getChannel(), path);
> }
> }
>
>
>
> Whenever the step is executed it fails with the following exception:
>
> [Bitbucket] Build result notified
> java.lang.IllegalArgumentException: Unable to locate class file for class
> customStep$1
> at hudson.remoting.Which.classFileUrl(Which.java:61)
> at
> hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch4(RemoteClassLoader.java:847)
> at
> hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch3(RemoteClassLoader.java:875)
>
>
> I moved already the anonymous class into a separate file. It did also not
> work.
>
> Is it not possible to use the FilePath.act method in a custom pipeline
> step?
>
> Richard
>
>
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