`ConfigScope`of plugin not found

[JosuaCarl]

Bug report

Expected behavior and actual behavior

We are currently trying to address the warnings of the v2 syntax parser:

...
WARN: Unrecognized config option 'co2footprint.dataFile.enabled'
WARN: Unrecognized config option 'co2footprint.location'
...

But a proposed PR which should align all ConfigScope classes with the template in the documentation (see nextflow-io/nf-co2footprint#362) does not fix the issue. During a deeper dive I found that the ConfigValidator validates against all ConfigScope classes, but our classes are never recognized.

Steps to reproduce the problem

Use v2 Parser with nextflow-io/nf-co2footprint#362 of the nf-co2footprint plugin.

Program output

I collected the following info during runtime:

• Plugins.isStarted('nf-co2footprint') -> true indicates that the plugin is correctly started
• Plugins.getExtensions(ConfigScope) lists a bunch of ConfigScope classes, but none from the plugin are among them
• Plugins.manager.getExtensionClasses('nf-co2footprint') -> [CO2FootprintFactory, CO2FooprintExtension] this lists the PluginExtensionPoint and TraceObserverFactory, which is to be expected, but not the ConfigScope
• Consequently Plugins.getExtensionsInPluginId(ConfigScope, 'nf-co2footprint') is empty

Environment

• Nextflow version: 25.10.4

Sneak Peak into the main config class

@ScopeName('co2footprint')
@Description('The `co2footprint` scope allows you to configure the `nf-co2footprint` plugin.')
@Slf4j
class CO2FootprintConfig implements ConfigScope {

    ...

    @ConfigOption(types=[GString])
    @Description('Location GeoCode from Electricity maps.')
    final String location
    
    ...

    /**
     * No-arg constructor required by Nextflow's v2 config parser to
     * discover and validate config options at parse time.
     */
    CO2FootprintConfig() {}

    /**
     * Loads configuration from a map and sets up defaults and fallbacks.
     * Also sets up CPU and CI data sources and assigns machine type and PUE.
     *
     * @param configMap   Map of configuration values (from Nextflow config)
     * @param cpuData     TDPDataMatrix with CPU power draw data
     * @param ciData      CIDataMatrix with carbon intensity data
     * @param processMap  Map with process/executor info
     */
    CO2FootprintConfig(...) {
        ...
    }
    ...
}

Have we missed anything in the template?

[bentsherman]

I responded on the plugin PR. You can always just tag me directly if you want. Closing until a Nextflow issue is found