less-terrible-coffeelint-loader

0.1.5 • Public • Published

Less Terrible Coffeelint Loader

This was originally a fork of coffeelint-loader, but it had some deficiencies. When I tried to fix them, I ended up replacing the whole thing.

I'm using this for an internal project at the company I work for, so don't expect this to work in the general case. While it may technically have support for some features, I have not tested all of them. PRs are welcome, however.

Usage

Apply the Coffeelint loader as pre/postLoader in your webpack configuration:

module.exports = {
    module: {
        preLoaders: [
            {
                test: /\.coffee$/, // include .coffee files
                exclude: /node_modules/,
                loader: "less-terrible-coffeelint-loader"
            }
        ]
    },
 
    // more options in the optional coffeelint object
    coffeelint: {
        // any coffeelint option http://www.coffeelint.com/#options
        // i. e.
        camel_case_classes: 'error',
 
        // coffeelint to not interrupt the compilation
        // if you want any file with coffeelint errors to fail
        // set failOnErrors to true
        failOnErrors: false,
 
        // same as failOnErrors but will throw an exception for
        // warnings as well
        failOnWarns: false,
 
        // custom reporter function
        reporter: function(errors) {
            this.emitWarning(errors.map(function(error) {
                return [
                    error.lineNumber,
                    error.message
                ].join(' ')
            }).join('\n'));
        }
    }
}

Custom reporter

By default, less-terrible-coffeelint-loader will provide a default reporter.

However, if you prefer a custom reporter, pass a function under the reporter key in coffeelint options. (see usage above)

The reporter function will be passed the array returned from coffeelint.lint as well as a boolean indicating whether you should emitError or emitWarning:

reporter.call(this, [
    {
        rule :      'Name of the violated rule',
        lineNumber: 'Number of the line that caused the violation',
        level:      'The severity level of the violated rule',
        message:    'Information about the violated rule',
        context:    'Optional details about why the rule was violated'
    }
], true); // emitErrors

The reporter function will be excuted with the loader context as this. You may emit messages using this.emitWarning(...) or this.emitError(...). See webpack docs on loader context.

The output in the Webpack CLI will usually be:

...

WARNING in ./path/to/file.js
<reporter output>

...

License

MIT (http://www.opensource.org/licenses/mit-license.php)

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npm i less-terrible-coffeelint-loader

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  • kmdavis
  • nevon