Make openapi-generator-maven-plugin cacheable

gradle-enterprise-custom-user-data.groovy

log.debug('Evaluating custom Develocity logic')

buildCache.registerMojoMetadataProvider(context -> {
    context.withPlugin("openapi-generator-maven-plugin", () -> {
        if ("generate".equals(context.getMojoExecution().getGoal())) {
            log.debug('Configuring OpenAPI code generator caching')

            context.inputs(inputs -> {
                try {
                    List<String> compileClasspathElements = context.getProject().getCompileClasspathElements();
                    log.debug("codegen compile classpath elements:")
                    log.debug(compileClasspathElements.toString())
                    inputs.fileSet("codegenCompileClasspath", 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("templateDirectory", fileSet -> fileSet.normalizationStrategy(com.gradle.develocity.agent.maven.adapters.MojoMetadataProviderAdapter.Context.FileSet.NormalizationStrategy.RELATIVE_PATH))
                        .properties("property","strictSpec","skipValidateSpec","enablePostProcessFile","skipOperationExample","removeOperationIdPrefix","templateResourcePath","artifactId","groupId","artifactVersion","library","packageName","invokerPackage","modelPackage","modelNamePrefix",
                                "modelNameSuffix","apiNameSuffix","apiPackage","ignoreFileOverride","skipOverwrite","configurationFile","mergedFileInfoDescription","mergedFileInfoVersion","mergedFileName","mergedFileInfoName","inputSpecRootDirectory","inputSpec","generatorName",
                                "collapsedSpec","includeCollapsedSpecInArtifacts","engine","generateAliasAsModel","minimalUpdate","configOptions","instantiationTypes","importMappings","schemaMappings","inlineSchemaNameMappings","inlineSchemaOptions","nameMappings","parameterNameMappings",
                                "modelNameMappings","enumNameMappings","operationIdNameMappings","openapiNormalizer","typeMappings","languageSpecificPrimitives","openapiGeneratorIgnoreList","additionalProperties","serverVariableOverrides","reservedWordsMappings","generateApis",
                                "apisToGenerate","generateModels","generateRecursiveDependentModels","modelsToGenerate","generateSupportingFiles","supportingFilesToGenerate","generateModelTests","generateModelDocumentation","generateApiTests","generateApiDocumentation","skip",
                                "skipIfSpecIsUnchanged","addCompileSourceRoot","addTestCompileSourceRoot","dryRun","environmentVariables","globalProperties","configHelp","cleanupOutput","withXml")
                        .ignore("buildContext", "verbose", "gitHost", "gitUserId", "gitRepoId", "auth", "httpUserAgent", "logToStderr", "mavenProject", "mavenProjectHelper", "mojo", "project")
            });
            context.outputs(outputs -> {
                outputs.cacheable("this plugin has CPU-bound goals with well-defined inputs and outputs");
                outputs.directory("output");
                outputs.directory("target/generated-sources/openapi");
                outputs.directory("target/generated-test-sources/openapi");
            });

            context.getProject().addCompileSourceRoot("target/generated-sources/openapi/src/main/java");
        }
    });
});