protected static HasMetadata mergeDeployments()

in core/src/main/java/io/fabric8/maven/core/util/KubernetesResourceUtil.java [957:1020]
63 lines of code
13 McCabe index (conditional complexity)

    protected static HasMetadata mergeDeployments(Deployment resource1, Deployment resource2, Logger log, boolean switchOnLocalCustomisation) {
        Deployment resource1OrCopy = resource1;
        if (!switchOnLocalCustomisation) {
            // lets copy the original to avoid modifying it
            resource1OrCopy = new DeploymentBuilder(resource1OrCopy).build();
        }
        HasMetadata answer = resource1OrCopy;
        DeploymentSpec spec1 = resource1OrCopy.getSpec();
        DeploymentSpec spec2 = resource2.getSpec();
        if (spec1 == null) {
            resource1OrCopy.setSpec(spec2);
        } else {
            PodTemplateSpec template1 = spec1.getTemplate();
            PodTemplateSpec template2 = null;
            if (spec2 != null) {
                template2 = spec2.getTemplate();
            }
            if (template1 != null && template2 != null) {
                mergeMetadata(template1, template2);
            }
            if (template1 == null) {
                spec1.setTemplate(template2);
            } else {
                PodSpec podSpec1 = template1.getSpec();
                PodSpec podSpec2 = null;
                if (template2 != null) {
                    podSpec2 = template2.getSpec();
                }
                if (podSpec1 == null) {
                    template1.setSpec(podSpec2);
                } else {
                    String defaultName = null;
                    PodTemplateSpec updateTemplate = template1;
                    if (switchOnLocalCustomisation) {
                        HasMetadata override = resource2;
                        if (isLocalCustomisation(podSpec1)) {
                            updateTemplate = template2;
                            PodSpec tmp = podSpec1;
                            podSpec1 = podSpec2;
                            podSpec2 = tmp;
                        } else {
                            answer = resource2;
                            override = resource1OrCopy;
                        }
                        mergeMetadata(answer, override);
                    } else {
                        mergeMetadata(resource1OrCopy, resource2);
                    }
                    if (updateTemplate != null) {
                        if (podSpec2 == null) {
                            updateTemplate.setSpec(podSpec1);
                        } else {
                            PodSpecBuilder podSpecBuilder = new PodSpecBuilder(podSpec1);
                            mergePodSpec(podSpecBuilder, podSpec2, defaultName);
                            updateTemplate.setSpec(podSpecBuilder.build());
                        }
                    }
                    return answer;
                }
            }
        }
        log.info("Merging 2 resources for " + getKind(resource1OrCopy) + " " + getName(resource1OrCopy) + " from " + getSourceUrlAnnotation(resource1OrCopy) + " and " + getSourceUrlAnnotation(resource2) + " and removing " + getSourceUrlAnnotation(resource1OrCopy));
        return resource1OrCopy;
    }