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find-unused-sass-variables

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find-unused-sass-variables

A small tool to find unused Sass variables

  • 6.0.0
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  • npm
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find-unused-sass-variables

npm version Build Status

A simple tool to check for unused Sass variables in a directory.

Install

npm install find-unused-sass-variables --save-dev

Usage

find-unused-sass-variables folder [, folder2...] --ignore "$my-var,$my-second-var" -e scss -e css --ignoreFiles file-with-unused-vars.scss
# or
fusv folder [, folder2...] --ignore "$my-var,$my-second-var" -e scss -e css --ignoreFiles file-with-unused-vars.scss

API

import { findAsync, find } from 'find-unused-sass-variables';

// 'directory' is a folder
const unused = find('directory');
// Array of unused variables
console.log(unused.unused);
// Array<{ name: string, line: string, file: string }>
/*
[
  {
    name = '$foo';
    file = 'file where this variable can be found';
    line = 'line of file';
  },
  {
    ....
  }
]
*/
// Total number of variables in the files
console.log(unused.total);
// Ignoring variables
const ignoredVars = ['$my-var', '$my-second-var'];
const unused = find('directory', { ignore: ignoredVars });
// Ignoring files
const ignoreFiles = ['./file-with-unused-vars.scss', '**/_variables.scss'];
const unused = fusv.find('directory', { ignoreFiles });
// Specifying file extensions
const unused = find('directory', { fileExtensions: ['css','scss']});
// Asynchronous usage
let unused = await findAsync('directory');

// or like a Promise
unused = findAsync('directory').then(result => {
  console.log(unused.unused);
});

find(dir, options)

  • dir: string
  • options: optional options Object

Returns an object with unused and total. unused has the array of unused variables and total has the sum of all variables in the files (unused and used ones).

findAsync(dir, options)

Returns a Promise which resolves result; returns the same as find(dir, options).

options.ignore

Array of strings of the variables to ignore, e.g. ['$my-var', '$my-second-var']

options.ignoreFiles

Array of strings of files to ignore, e.g. ['./file-with-unused-vars.scss', '**/_variables.scss'].

options.fileExtensions

Array of file extensions to search for unused variables in. e.g. ['scss']

Disable & enable

Disable or enable fusv with the fusv-disable and fusv-enable comments:

$used-variable-1: #666;

// fusv-disable
$unused-variable: #coffee;
// fusv-enable

$used-variable-2: #ace;

Notes

  • The tool's logic is pretty "dumb"; if you use the same name for a variable in different files or namespaces, then it won't distinguish between them.
  • The tool only looks for .scss files by default, but you can optionally specify the file extension.

License

MIT

Keywords

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Package last updated on 02 Apr 2024

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