Lint your CoffeeScript v2 code
npm install @fellow/coffeelint2This is the the same as the older CoffeeLint, with some changes to enable better support new CoffeeScript 2 features.
- CJSX files (JSX-style) are fully compatible
- All rules output column numbers as well.
CoffeeLint2
==========
CoffeeLint is a style checker that helps keep CoffeeScript code
clean and consistent.
For guides on installing, using and configuring CoffeeLint, head over
here.
To suggest a feature, report a bug, or general discussion, head over
here.
Current:
Past:
- Asa Ayers - You Don't Need CoffeeScript
- Matt Perpick
* New rules should be set to a warn level. Developers will expect new changes to NOT break their existing workflow, so unless your change is extremely usefull, default to warn. Expect discussion if you choose to use error.
* Look at existing rules and test structures when deciding how to name your rule. no_foo.coffee is used for many tests designed to catch specific errors, whereas foo.coffee is used for tests that are designed to enforce formatting and syntax.
1. Fork the repo locally.
2. Run npm install to get dependencies.
3. Create your rule in a single file as src/rules/your_rule_here.coffee, using the existing
rules as a guide.
You may examine the AST and tokens using
http://asaayers.github.io/clfiddle/.
4. Add your test file my_test.coffee to the test directory.
5. Register your rule in src/coffeelint.coffee.
6. Run your test using npm run testrule test/your_test_here.coffee.
7. Run the whole tests suite using npm test.
8. Check that your rule's documentation is generated properly (see _Updating documentation when
adding a new rule_ below).
9. Squash all commits into a single commit when done.
10. Submit a pull request.

When adding a new rule, its documentation is specified by setting adescription property within its rule property:
``coffeescript
module.exports = class NoComment
rule:
name: 'no_comment'
level: 'ignore'
message: 'No comment'
description: '''
Disallows any comment in the code
'''
tokens: ['#', '###']
lintToken : (token, tokenApi) ->
return {context: "Found '#{token[0]}'"}
`
The description property is a string that can embed HTML code:
`html`
description: '''
Disallows any comment in the code. This code would not pass:
### Some code with comments
foo = ->
# some other comments
bar()
'''description
Coffeelint's website generates each
rule's documentation based on this property.
When adding a new rule, it is suggested that you check that the documentation
for your new rule is generated correctly. In order to do that, you should
follow these steps:
* Checkout the branch that contains the changes adding the new rule.
* Run npm run compile.gh-pages
* Checkout the branch: git checkout origin/gh-pages.cp lib/coffeelint.js js/coffeelint.js
* Run .rake updatehtml
* Regenerate the HTML documentation: . Note that you willindex.html` file with your favorite browser and make sure that your
probably need to install rake.
* Open the
rule's documentation is generated properly.