Make gwt-maven-plugin cacheable

gradle-enterprise-custom-user-data.groovy

log.debug('Evaluating custom Develocity logic')

buildCache.registerMojoMetadataProvider(context -> {
    context.withPlugin("gwt-maven-plugin", () -> {
        if ("compile".equals(context.getMojoExecution().getGoal())) {
            log.debug('Configuring GWT caching')

            context.inputs(inputs -> {
                try {
                    List<String> compileClasspathElements = context.getProject().getCompileClasspathElements();
                    log.debug("GWT compile classpath elements:")
                    log.debug(compileClasspathElements.toString())
                    inputs.fileSet("gwtCompileClasspath", compileClasspathElements, fileSet -> fileSet.normalizationStrategy(com.gradle.develocity.agent.maven.adapters.MojoMetadataProviderAdapter.Context.FileSet.NormalizationStrategy.CLASSPATH));
                } catch (Exception e) {
                    throw new IllegalStateException("Classpath can't be resolved");
                }
                inputs
                        .fileSet("warSourceDirectory", fileSet -> fileSet.normalizationStrategy(com.gradle.develocity.agent.maven.adapters.MojoMetadataProviderAdapter.Context.FileSet.NormalizationStrategy.RELATIVE_PATH))
                        .properties("skip", "force", "checkAssertions", "disableClassMetadata", "disableCastChecking", "disableRunAsync", "validateOnly", "draftCompile", "extraParam", "compileReport", "optimizationLevel", "detailedSoyc", "failOnError", "closureCompiler", "closureFormattedOutput", "compilerMetrics", "fragmentCount", "clusterFunctions", "inlineLiteralParameters", "optimizeDataflow", "generateJsInteropExports", "ordinalizeEnums", "removeDuplicateFunctions", "saveSource", "sourceLevel", "namespace", "overlappingSourceWarnings", "enableJsonSoyc", "incremental", "methodNameDisplayMode", "compilerArgs", "genParam", "logLevel", "style", "deploy", "extraJvmArgs", "jvm", "compileSourcesArtifacts", "persistentunitcache", "persistentunitcachedir", "modules", "module", "modulePathPrefix", "inplace", "gwtSdkFirstInClasspath", "disableAggressiveOptimization", "enableAssertions", "enableClosureCompiler", "soycDetailed", "strict", "treeLogger", "version")
                        .ignore("localWorkers", "workdir", "printJavaCommandOnError", "coverage", "timeOut", "pluginArtifactMap", "localRepository", "remoteRepositories", "project", "session", "pluginArtifacts", "workDir")
            });
            context.outputs(outputs -> {
                outputs.cacheable("this plugin has CPU-bound goals with well-defined inputs and outputs");
                outputs.directory("extra");
                outputs.directory("gen");
                outputs.directory("saveSourceOutput")
                outputs.directory("generateDirectory")
                outputs.directory("webappDirectory")
            });
        }
    });
});