public final Path createImage()

in src/main/java/org/apache/netbeans/nbpackage/AbstractPackagerTask.java [102:164]
56 lines of code
12 McCabe index (conditional complexity)

    public final Path createImage(Path input) throws Exception {
        String imageName = calculateImageName(input);
        Path image = context.destination().resolve(imageName);
        Files.createDirectory(image);

        Path appDir = calculateAppPath(image);
        Files.createDirectories(appDir);
        if (Files.isDirectory(input)) {
            copyAppFromDirectory(input, appDir);
        } else if (Files.isRegularFile(input)) {
            extractAppFromArchive(input, appDir);
        } else {
            throw new IllegalArgumentException(input.toString());
        }

        Path runtime = context.getValue(NBPackage.PACKAGE_RUNTIME)
                .map(Path::toAbsolutePath)
                .orElse(null);
        if (runtime != null) {
            Path runtimeDir = calculateRuntimePath(image, appDir);
            Files.createDirectories(runtimeDir);
            if (Files.isDirectory(runtime)) {
                copyRuntimeFromDirectory(runtime, runtimeDir);
            } else if (Files.isRegularFile(runtime)) {
                extractRuntimeFromArchive(runtime, runtimeDir);
            } else {
                throw new IllegalArgumentException(runtime.toString());
            }
            if (runtimeDir.startsWith(appDir)) {
                String jdkhome = appDir.relativize(runtimeDir).toString();
                try (var confs = Files.newDirectoryStream(appDir.resolve("etc"), "*.conf")) {
                    for (Path conf : confs) {
                        addRuntimeToConf(conf, jdkhome);
                    }
                }
            }
        }

        customizeImage(image);

        String filterPattern = context.getValue(NBPackage.PACKAGE_REMOVE).orElse(null);
        if (filterPattern != null) {
            removeFromImage(image, filterPattern);
        }

        Path mergeSource = context.getValue(NBPackage.PACKAGE_MERGE)
                .map(Path::toAbsolutePath)
                .orElse(null);
        if (mergeSource != null) {
            Path rootDir = calculateRootPath(image);
            if (Files.isDirectory(mergeSource)) {
                processMergeFromDirectory(mergeSource, image, rootDir);
            } else if (Files.isRegularFile(mergeSource)) {
                processMergeFromArchive(mergeSource, image, rootDir);
            } else {
                throw new IllegalArgumentException(mergeSource.toString());
            }
        }

        finalizeImage(image);

        return image;
    }