Customs Action running on Linux Agent

[Andrew Sumner]

I'm trying to write custom action that would wrap for the wget command and run it on a linux agent.

My first attempt produced this error, am I using the correct class and call?

Build 101 for Cusmod Linux 9.4.0 (1/08/2013 4:50:08 p.m.)
Action Group 1: test
Action 1: Uses '/usr/bin/wget' to dowload Cusmod/deployment-scripts/Database//*.sh
Preparing remote servers for execution...
Preparing DWDCW-DSAS01 for execution...
Preparing SYBDEV_dwdcs-cmas01 for execution...
Preparation complete.
Initializing action...
An unhandled exception occurred while executing this action: System.InvalidOperationException: Action is not supported on this type of agent (requires IPersistedObjectExecuter) at Inedo.BuildMaster.Windows.ServiceApplication.SlimPlanActionExecuter.RemoteAction_InitializeRemoteConfiguration(Object sender, RemoteConfigurationEventArgs e) at Inedo.BuildMaster.Extensibility.Actions.RemoteActionBase.OnInitializeRemoteConfiguration(RemoteConfigurationEventArgs e) at Inedo.BuildMaster.Extensibility.Actions.RemoteActionBase.OnBeforeExecute(EventArgs e) at Inedo.BuildMaster.Extensibility.Actions.ActionBase.Execute(IActionCancellationToken cancellationToken, ExecutionContext context, ExtensionConfigurerBase extensionConfigurer, Boolean resumeNextOnError, Boolean logErrorsAsWarnings)

My code looks like this

public sealed class WGetArtifactoryRemoteAction : CommandLineActionBase
{
...

protected override void Execute()
{
    this.ExecuteRemoteCommand("/usr/bin/wget", "-m -e robots=off -nd http://artifactory:8081/artifactory/Cusmod/server/9.4.0/123/Server_9.4.0.123.tar.gz");
}

protected override string ProcessRemoteCommand(string name, string[] args)
{
    return this.ExecuteCommandLine(name, args[0], this.RemoteConfiguration.SourceDirectory);
}

}

[Steve]

Hi Andrew,

The ProcessRemoteCommand method only works when working with .NET-based agents. Behind the scenes, that method will serialize the action and use a sort of remoting to run that method on the remote server. With an SSH-based agent, this is obviously not possible.

The CommandLineActionBase abstracts a lot of the complexity in executing remote processes. Just ignore the ProcessRemoteCommand method (throw a NotImplementedException) and try run the ExecuteCommandLine method from Execute.

FYI - this is all being refactored in 4.0, and we're trying to phase out as many ProcessRemoteCommand-based actions as possible.