public void save()

in src/main/java/org/apache/maven/buildcache/CacheControllerImpl.java [483:567]
75 lines of code
13 McCabe index (conditional complexity)

    public void save(
            CacheResult cacheResult,
            List<MojoExecution> mojoExecutions,
            Map<String, MojoExecutionEvent> executionEvents) {
        CacheContext context = cacheResult.getContext();

        if (context == null || context.getInputInfo() == null) {
            LOGGER.info("Cannot save project in cache, skipping");
            return;
        }

        final MavenProject project = context.getProject();
        final MavenSession session = context.getSession();
        try {
            final HashFactory hashFactory = cacheConfig.getHashFactory();
            final org.apache.maven.artifact.Artifact projectArtifact = project.getArtifact();
            final List<org.apache.maven.artifact.Artifact> attachedArtifacts;
            final List<Artifact> attachedArtifactDtos;
            final Artifact projectArtifactDto;
            if (project.hasLifecyclePhase("package")) {
                final HashAlgorithm algorithm = hashFactory.createAlgorithm();
                attachGeneratedSources(project);
                attachOutputs(project);
                attachedArtifacts = project.getAttachedArtifacts() != null
                        ? project.getAttachedArtifacts()
                        : Collections.emptyList();
                attachedArtifactDtos = artifactDtos(attachedArtifacts, algorithm, project);
                projectArtifactDto = artifactDto(project.getArtifact(), algorithm, project);
            } else {
                attachedArtifacts = Collections.emptyList();
                attachedArtifactDtos = new ArrayList<>();
                projectArtifactDto = null;
            }

            List<CompletedExecution> completedExecution = buildExecutionInfo(mojoExecutions, executionEvents);

            final Build build = new Build(
                    session.getGoals(),
                    projectArtifactDto,
                    attachedArtifactDtos,
                    context.getInputInfo(),
                    completedExecution,
                    hashFactory.getAlgorithm());
            populateGitInfo(build, session);
            build.getDto().set_final(cacheConfig.isSaveToRemoteFinal());
            cacheResults.put(getVersionlessProjectKey(project), rebuilded(cacheResult, build));

            localCache.beforeSave(context);

            // if package phase presence means new artifacts were packaged
            if (project.hasLifecyclePhase("package")) {
                if (projectArtifact.getFile() != null) {
                    localCache.saveArtifactFile(cacheResult, projectArtifact);
                }
                for (org.apache.maven.artifact.Artifact attachedArtifact : attachedArtifacts) {
                    if (attachedArtifact.getFile() != null) {
                        boolean storeArtifact =
                                isOutputArtifact(attachedArtifact.getFile().getName());
                        if (storeArtifact) {
                            localCache.saveArtifactFile(cacheResult, attachedArtifact);
                        } else {
                            LOGGER.debug(
                                    "Skipping attached project artifact '{}' = "
                                            + " it is marked for exclusion from caching",
                                    attachedArtifact.getFile().getName());
                        }
                    }
                }
            }

            localCache.saveBuildInfo(cacheResult, build);

            if (cacheConfig.isBaselineDiffEnabled()) {
                produceDiffReport(cacheResult, build);
            }

        } catch (Exception e) {
            LOGGER.error("Failed to save project, cleaning cache. Project: {}", project, e);
            try {
                localCache.clearCache(context);
            } catch (Exception ex) {
                LOGGER.error("Failed to clean cache due to unexpected error:", ex);
            }
        }
    }