如何检查 stylelint 中的最大选择器数量？

Question

我需要检查一个文件中是否有一个根class。可能吗？

// Error
.a { }
.b { }

预计

// Success
.a {}

Answer 1

rules built into stylelint无法做到这一点。

但是，create a stylelint plugin可以做到这一点。

该插件看起来像：

// ./plugins/stylelint-root-max-rules/index.js

const isNumber = require("lodash/isNumber");
const {
  createPlugin,
  utils: { report, ruleMessages, validateOptions }
} = require("stylelint");

const ruleName = "plugin/root-max-rules";
const messages = ruleMessages(ruleName, {
  expected: max =>
    `Expected no more than ${max} ${max === 1 ? "rule" : "rules"}`
});

const rule = quantity => {
  return (root, result) => {
    const validOptions = validateOptions(result, ruleName, {
      actual: quantity,
      possible: isNumber
    });
    if (!validOptions) return;
    const { length } = root.nodes.filter(node => node.type === "rule");
    if (length <= quantity) return;
    report({
      message: messages.expected(quantity),
      node: root,
      result,
      ruleName
    });
  };
};

module.exports = createPlugin(ruleName, rule);
module.exports.ruleName = ruleName;
module.exports.messages = messages;

然后您将像这样使用插件：

{
  "plugins": ["./plugins/stylelint-root-max-rules"],
  "rules": [
    "plugin/root-max-rules": 1
  ]
}

如何检查 stylelint 中的最大选择器数量？

How to check the maximum number of selectors in stylelint?

sass

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stylelint

scss-lint