static VirtualDir getInput(Object input) throws IOException {
File inputFile = getFileInput(input);
if (inputFile == null) {
throw new IOException("Unknown input type.");
}
if (inputFile.isFile() && !isCompressedFile(inputFile)) {
final File absoluteFile = inputFile.getAbsoluteFile();
inputFile = absoluteFile.getParentFile();
if (inputFile == null) {
throw new IOException(
"Unable to retrieve parent to file: " + absoluteFile.getAbsolutePath());
}
}
VirtualDir virtualDir = VirtualDir.create(inputFile);
if (virtualDir == null) {
virtualDir = new VirtualDirTgz(inputFile);
}
return virtualDir;
}
