Simple source code validator with file reformatting option (remove trailing WS, pretty print XML, ..).

For Python code formatting it can either use autopep8 or the builtin copy of PythonTidy.

• Python 2.7+
• lxml (for XML formatting)
• pep8 (for Python checking)
• autopep8 (for Python formatting)
• pyflakes (for static Python code checking)
• Jalopy (for Java code formatting)
• coffeelint (for CoffeeScript validation)
• PHP_CodeSniffer (for PHP style checking)
• Puppet (for Puppet manifest validation)
• sqlparse
• jshint (for JavaScript checking)
• PyYAML (for YAML checking)

On Ubuntu you can install most packages easily:

sudo apt-get install python-lxml pep8 pyflakes nodejs npm python-sqlparse python-yaml
sudo npm install -g jshint

If you are using Jalopy, for better performance also install Nailgun:

sudo apt-get install nailgun

And start the nailgun server with:

java -cp /usr/share/java/nailgun-0.9.0.jar:/opt/jalopy/lib/jalopy-1.9.4.jar -server com.martiansoftware.nailgun.NGServer

There are at least two ways of installing codevalidator:

• Alternative 1: Use the codevalidator source tree directly (i.e. clone the GIT repo and put codevalidator.py in your PATH):

  git clone https://github.com/hjacobs/codevalidator.git
  sudo ln -s codevalidator/codevalidator.py /usr/local/bin/codevalidator.py
  

• Alternative 2: Install codevalidator from PyPI using PIP:

  sudo pip install codevalidator
  

• Alternative 3: Use Docker to get all dependencies and to run codevalidator without messing with your local system:

  docker build -t codevalidator .
  # we can mount the current directory into "workdir" volume to validate the local directory recursively
  docker run -v `pwd`:/workdir -t codevalidator -rvv /workdir/
  

Validating test files with builtin default configuration:

./codevalidator.py test/*

Fixing test files (removing trailing whitespace, XML format):

./codevalidator.py -f test/*

Using custom configuration file:

./codevalidator.py -c test/config.json test/*

Validate and fix a whole directory tree:

./codevalidator.py -c myconfig.json -rf /path/to/mydirectory

Validate a single PHP file and print detailed error messages (needs PHP_CodeSniffer with PSR standards installed!):

./codevalidator.py -v test/test.php

Running in very verbose (debug) mode to see what is validated:

./codevalidator.py -vvrc test/config.json test

Using the filter mode to "fix" stdin and write to stdout:

echo 'print 1' | ./codevalidator.py --fix --filter foobar.py && echo success

If you are annoyed by the .XX.pre-cvfix backup files you can disable them either on the command line (--no-backup) or in the config file.

Codevalidator uses a mapping of file name patterns to "rules" in order to know which validation rules should be applied for a certain file. The script contains a more-or-less sane default configuration (see DEFAULT_CONFIG at the top of codevalidator.py). You can overwrite the configuration by putting a .codevalidatorrc file in your home directory. The file must be JSON and must have the same structure as DEFAULT_CONFIG.

You can use the --fix --filter combination to directly filter your current buffer in VIM:

:%!codevalidator.py --fix --filter %

The --fix --filter was also designed to be used with GIT filters.

To apply a formatting rule once without changing you configuration file, you can use the -a option. Formatting a Python file once with the pythontidy rule looks like:

./codevalidator.py -a pythontidy myfile.py

• PythonTidy cannot parse dict comprehensions. As a workaround you can use list comprehensions and wrap it with dict.