public void produceDiffReport()

in src/main/java/org/apache/maven/buildcache/CacheControllerImpl.java [569:620]
52 lines of code
5 McCabe index (conditional complexity)

    public void produceDiffReport(CacheResult cacheResult, Build build) {
        MavenProject project = cacheResult.getContext().getProject();
        Optional<Build> baselineHolder = remoteCache.findBaselineBuild(project);
        if (baselineHolder.isPresent()) {
            Build baseline = baselineHolder.get();
            String outputDirectory = project.getBuild().getDirectory();
            Path reportOutputDir = Paths.get(outputDirectory, "incremental-maven");
            LOGGER.info("Saving cache builds diff to: {}", reportOutputDir);
            Diff diff = new CacheDiff(build.getDto(), baseline.getDto(), cacheConfig).compare();
            try {
                Files.createDirectories(reportOutputDir);
                final ProjectsInputInfo baselineInputs = baseline.getDto().getProjectsInputInfo();
                final String checksum = baselineInputs.getChecksum();
                Files.write(
                        reportOutputDir.resolve("buildinfo-baseline-" + checksum + ".xml"),
                        xmlService.toBytes(baseline.getDto()),
                        TRUNCATE_EXISTING,
                        CREATE);
                Files.write(
                        reportOutputDir.resolve("buildinfo-" + checksum + ".xml"),
                        xmlService.toBytes(build.getDto()),
                        TRUNCATE_EXISTING,
                        CREATE);
                Files.write(
                        reportOutputDir.resolve("buildsdiff-" + checksum + ".xml"),
                        xmlService.toBytes(diff),
                        TRUNCATE_EXISTING,
                        CREATE);
                final Optional<DigestItem> pom =
                        CacheDiff.findPom(build.getDto().getProjectsInputInfo());
                if (pom.isPresent()) {
                    Files.write(
                            reportOutputDir.resolve("effective-pom-" + checksum + ".xml"),
                            pom.get().getValue().getBytes(StandardCharsets.UTF_8),
                            TRUNCATE_EXISTING,
                            CREATE);
                }
                final Optional<DigestItem> baselinePom = CacheDiff.findPom(baselineInputs);
                if (baselinePom.isPresent()) {
                    Files.write(
                            reportOutputDir.resolve("effective-pom-baseline-" + baselineInputs.getChecksum() + ".xml"),
                            baselinePom.get().getValue().getBytes(StandardCharsets.UTF_8),
                            TRUNCATE_EXISTING,
                            CREATE);
                }
            } catch (IOException e) {
                LOGGER.error("Cannot produce build diff for project", e);
            }
        } else {
            LOGGER.info("Cannot find project in baseline build, skipping diff");
        }
    }