SortCheckstyle is a tool to organize the contents of Checkstyle configuration files.

Organizing file content according to a standard scheme exposes redundancy and facilitates comparisons between files.

Characteristics of the SortCheckstyle scheme:

• Modules generally appear in the same order as they do in Checkstyle's online documentation: grouped into "annotations", "block checks", etcetera and then alphabetized by name within each group.
• Suppression modules that specify an ID appear with the modules they suppress.
• Within each module:
  • properties appear before modules
  • modules appear before messages
  • properties are sorted lexicographically by name, and
  • messages are sorted lexicographically by key.

Usage: SortCheckstyle [options]
  Options:
    -c, --compress
      Compress whitespace in values.
      Default: false
    -h, --help
      Display this usage message and exit.
      Default: false
    -f, --file, -i, --input
      Specify the input file.
    --noSortAttributes
      Disable attribute sorting.
      Default: false
    --noSortChildren
      Disable child sorting.
      Default: false
    -o, --output
      Specify the output file.
      Default: checkstyle-out.xml
    -u, --uri
      Specify the input URI.
    -v, --verbose
      Generate additional log output.
      Default: false

If no input file or URI is specified, the tool will attempt to read the file "checkstyle-in.xml".