public static File resolveFile()

in src/main/java/org/apache/maven/shared/utils/io/FileUtils.java [943:999]
37 lines of code
12 McCabe index (conditional complexity)

    public static File resolveFile(final File baseFile, @Nonnull String filename) {
        String filenm = filename;
        if ('/' != File.separatorChar) {
            filenm = filename.replace('/', File.separatorChar);
        }

        if ('\\' != File.separatorChar) {
            filenm = filename.replace('\\', File.separatorChar);
        }

        // deal with absolute files
        if (filenm.startsWith(File.separator) || (Os.isFamily(Os.FAMILY_WINDOWS) && filenm.indexOf(":") > 0)) {
            File file = new File(filenm);

            try {
                file = file.getCanonicalFile();
            } catch (final IOException ioe) {
                // nop
            }

            return file;
        }
        // FIXME: I'm almost certain this // removal is unnecessary, as getAbsoluteFile() strips
        // them. However, I'm not sure about this UNC stuff. (JT)
        final char[] chars = filename.toCharArray();
        final StringBuilder sb = new StringBuilder();

        // remove duplicate file separators in succession - except
        // on win32 at start of filename as UNC filenames can
        // be \\AComputer\AShare\myfile.txt
        int start = 0;
        if ('\\' == File.separatorChar) {
            sb.append(filenm.charAt(0));
            start++;
        }

        for (int i = start; i < chars.length; i++) {
            final boolean doubleSeparator = File.separatorChar == chars[i] && File.separatorChar == chars[i - 1];

            if (!doubleSeparator) {
                sb.append(chars[i]);
            }
        }

        filenm = sb.toString();

        // must be relative
        File file = (new File(baseFile, filenm)).getAbsoluteFile();

        try {
            file = file.getCanonicalFile();
        } catch (final IOException ioe) {
            // nop
        }

        return file;
    }