slim-lint is a tool to help keep your Slim files
clean and readable. In addition to style and lint checks, it integrates with
RuboCop to bring its powerful static
analysis tools to your Slim templates.
You can run
slim-lint manually from the command line, or integrate it into
your SCM hooks.
- Editor Integration
- Git Integration
- Rake Integration
- Ruby 2.4+
- Slim 3.0+
gem install slim_lint
slim-lint from the command line by passing in a directory (or multiple
directories) to recursively scan:
You can also specify a list of files explicitly:
slim-lint will output any problems with your Slim, including the offending
filename and line number.
|Command Line Flag||Description|
||Specify which configuration file to use|
||Exclude one or more files from being linted|
||Specify which linters you specifically want to run|
||Specify which linters you don't want to run|
||Whether to output in color|
||Specify which output formatter to use|
||Show all registered linters|
||Show all available reporters|
||Show command line flag documentation|
||Show detailed version information|
slim-lint will automatically recognize and load any file with the name
.slim-lint.yml as a configuration file. It loads the configuration based on
slim-lint is being run from, ascending until a configuration
file is found. Any configuration loaded is automatically merged with the
default configuration (see
Here's an example configuration file:
exclude: - 'exclude/files/in/this/directory/from/all/linters/**/*.slim' linters: EmptyControlStatement: exclude: - 'app/views/directory_of_files_to_exclude/**/*.slim' - 'specific/file/to/exclude.slim' LineLength: include: 'specific/directory/to/include/**/*.slim' max: 100 RedundantDiv: enabled: false
All linters have an
enabled option which can be
controls whether the linter is run, along with linter-specific options. The
defaults are defined in
||List of files or glob patterns to scope this linter to. This narrows down any files specified via the command line.|
||List of files or glob patterns to exclude from this linter. This excludes any files specified via the command line or already filtered via the
Global File Exclusion
exclude global configuration option allows you to specify a list of files
or glob patterns to exclude from all linters. This is useful for ignoring
third-party code that you don't maintain or care to lint. You can specify a
single string or a list of strings for this option.
Some static blog generators such as Jekyll include
leading frontmatter to the template for their own tracking purposes.
slim-lint allows you to ignore these headers by specifying the
skip_frontmatter option in your
You can find detailed documentation on all supported linters by following the link below:
Install the Sublime slim-lint plugin.
If you use Flycheck, support for
slim-lint is included as of version
20160718.215 installed from MELPA.
plugin by running
apm install linter-slim-lint.
Visual Studio Code
Install the VS Code slim-lint plugin.
If you'd like to integrate
slim-lint into your Git workflow, check out
overcommit, a powerful and flexible
Git hook manager.
slim-lint via a Rake task, make
sure you have
rake included in your gem path (e.g. via
Gemfile), and add
the following to your
require 'slim_lint/rake_task' ::.
By default, when you execute
rake slim_lint, the above configuration is
equivalent to running
slim-lint ., which will lint all
.slim files in the
current directory and its descendants.
You can customize your task by writing:
require 'slim_lint/rake_task' ::. do |t| t.config = 'custom/config.yml' t.files = ['app/views', 'custom/*.slim'] t.quiet = true # Don't display output from slim-lint to STDOUT end
You can also use this custom configuration with a set of files specified via the command line:
# Single quotes prevent shell glob expansion rake 'slim_lint[app/views, custom/*.slim]'
Files specified in this manner take precedence over the task's
We love getting feedback with or without pull requests. If you do add a new feature, please add tests so that we can avoid breaking it in the future.
Speaking of tests, we use
rspec, which can be run by executing the following
from the root directory of the repository:
bundle exec rspec
If you're interested in seeing the changes and bug fixes between each version
slim-lint, read the Slim-Lint Changelog.
This project is released under the MIT license.