node-cpplint

Validates C++ files with cpplint

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node-cpplint Build Status Dependency Status devDependency Status
Validates CPP files with Google's cpplint

Usage

This module has been built for usage with Node scripts, to run from the command line, and to be used as a Grunt task.

Options

All methods of using this module allow for these specific configuration options:
  • reporter The reporter to use ( spec | json | plain-text ); defaults
to spec.
  • counting The counting-type ( total | toplevel | detailed ); defaults
to total. The total number of errors found is always printed. If toplevel is provided, then the count of errors in each of the top-level categories like build and whitespace will also be printed. If detailed is provided, then a count is provided for each category like build/class.
  • verbose The verbosity level; defaults to 1. A number 0-5 to restrict
errors to certain verbosity levels.
  • filters Enable/disable filtering for specific errors.
  • extensions List of file extensions to lint.
  • linelength The allowed line length.

A list of files is also expected.

CLI usage

Using the spec reporter, disabling whitespace/braces errors and linting file1.
bin/cpplint --reporter spec --filter whitespace-braces file1

Setting verbosity to 3, line length to 120, and the counting-type to detailed while linting file1 and file2.
bin/cpplint --verbose 3 --counting detailed --linelength 120 file2 file3

Using the plain-text reporter, ignoring build/deprecated errors and linting file1.
bin/cpplint --filter build-deprecated --reporter plain-text file1

Using the cc and hpp extensions and linting source1.cc and source1.hpp.
bin/cpplint --extensions cc,hpp source1.cc source1.hpp

JavaScript usage

Using the spec reporter
var cpplint = require('lib/index.js');
var reporter = require('lib/reporters').spec;
var options = {
  files: [
    '/path/to/some/files.cc'
  ]
};

cpplint(options, reporter);

Using a custom reporter, disabling whitespace/braces and enabling whitespace/includealpha
var cpplint = require('lib/index');
var options = {
  files: [
    '/path/to/some/files.cc'
  ],
  filters: {
    'whitespace': {
      'braces': false,
      'include_alpha': true
    }
  },
  // This could be an array of strings or a comma separated string
  extensions: [
    'cc',
    'hpp'
  ]
};

cpplint(options, function (err, report) {
  // your reporting logic
});

Grunt Task

grunt.loadNpmTasks('node-cpplint');

grunt.initConfig({
  cpplint: {
    files: [
      'src/**/*.cc',
      'src/**/*.cpp'
    ],
    reporter: 'spec',
    verbosity: 1
  },
  filters: {
    'whitespace': {
      'braces': false,
      'include_alpha': true
    }
  },
  linelength: 120,
  // This could be an array of strings or a comma separated string
  extensions: [
    'cc',
    'hpp'
  ]
});

TODO

Future plans (in no particular order):
  • better test coverage
  • xunit-xml reporter

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests (using vows) for any new or changed functionality. Lint and test your code using grunt jslint and verify that all unit tests are passing with grunt vows.

Revision History

0.4.0

  • add support for the linelength option

0.3.0

  • update cpplint

0.2.0

  • update cpplint
  • added extensions option for overriding what file extensions to lint

0.1.5

  • more windows compability fixes (line-endings) (@zcbenz)

0.1.4

  • bug fix in filters support (@kevinsawicki)

0.1.3

  • update grunt task to work with grunt 0.4 (@kevinsawicki)
  • update dev dependencies (grunt-jslint, vows, ...)
  • added npm test support

0.1.2

  • added support for ignoring certain errors (filters)

0.1.1

  • added simple grunt task

0.1.0

  • first public version
  • provides a few simple options for validating CPP files