/**
 * Generates a file at .openapi-generator/FILES to track the files created by the user's latest run.
 * This is ideal for CI and regeneration of code without stale/unused files from older generations.
 *
 * @param files The list tracking generated files
 */
private void generateFilesMetadata(List<File> files) {
    if (generateMetadata) {
        try {
            StringBuilder sb = new StringBuilder();
            File outDir = new File(this.config.getOutputDir());

            List<File> filesToSort = new ArrayList<>();

            // Avoid side-effecting sort in this path when generateMetadata=true
            files.forEach(f -> {
                // We have seen NPE on CI for getPath() returning null, so guard against this (to be fixed in 5.0 template management refactor)
                //noinspection ConstantConditions
                if (f != null && f.getPath() != null) {
                    filesToSort.add(f);
                }
            });

            filesToSort.sort(PathFileComparator.PATH_COMPARATOR);
            filesToSort.forEach(f -> {
                String relativePath = outDir.toPath().relativize(f.toPath()).toString();
                if (!relativePath.equals(METADATA_DIR + File.separator + "VERSION")) {
                    sb.append(relativePath).append(System.lineSeparator());
                }
            });

            String targetFile = config.outputFolder() + File.separator + METADATA_DIR + File.separator + "FILES";

            File filesFile = this.templateProcessor.writeToFile(targetFile, sb.toString().getBytes(StandardCharsets.UTF_8));
            if (filesFile != null) {
                files.add(filesFile);
            }
        } catch (Exception e) {
            LOGGER.warn("Failed to write FILES metadata to track generated files.");
        }
    }
}
 

@Test
public void whenSortDirWithPathFileComparator_thenFirstFileaaatxt() throws IOException {

    PathFileComparator pathFileComparator = new PathFileComparator(IOCase.INSENSITIVE);
    String path = FilenameUtils.getFullPath(getClass().getClassLoader().getResource("fileTest.txt").getPath());
    File dir = new File(path);
    File[] files = dir.listFiles();

    pathFileComparator.sort(files);

    Assert.assertEquals("aaa.txt", files[0].getName());
}
 

/**
 * Compares to file paths to see if they are the same based on the OS that is being used
 *
 * @param path1
 * @param path2
 * @return
 */
public static boolean areFilePathsSame(final String path1, final String path2) {
    return PathFileComparator.PATH_SYSTEM_COMPARATOR.compare(new File(path1), new File(path2)) == 0 ? true : false;
}