mirror of https://github.com/thangisme/notes.git
70 lines
2.0 KiB
JavaScript
70 lines
2.0 KiB
JavaScript
/* @flow */
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"use strict"
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const _ = require("lodash")
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const rules = require("./rules")
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// Rule settings can take a number of forms, e.g.
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// a. "rule-name": null
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// b. "rule-name": [null, ...]
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// c. "rule-name": primaryOption
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// d. "rule-name": [primaryOption]
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// e. "rule-name": [primaryOption, secondaryOption]
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// Where primaryOption can be anything: primitive, Object, or Array.
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//
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// This function normalizes all the possibilities into the
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// standard form: [primaryOption, secondaryOption]
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// Except in the cases with null, a & b, in which case
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// null is returned
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module.exports = function (
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rawSettings/*: stylelint$configRuleSettings*/,
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ruleName/*: string*/,
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// If primaryOptionArray is not provided, we try to get it from the
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// rules themselves, which will not work for plugins
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primaryOptionArray/*:: ?: boolean*/
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)/*: [any, Object] | Array<any | [any, Object]> | null*/ {
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if (rawSettings === null) {
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return null
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}
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if (!Array.isArray(rawSettings)) {
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return [rawSettings]
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}
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// Everything below is an array ...
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if (rawSettings[0] === null) {
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return null
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}
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// This cursed rule needs a special case
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if (ruleName === "declaration-block-properties-order") {
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if (rawSettings[0] === "alphabetical") {
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return rawSettings
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}
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if (typeof rawSettings[0] === "string") {
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return [rawSettings]
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}
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}
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if (primaryOptionArray === undefined) {
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const rule = rules[ruleName]
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primaryOptionArray = _.get(rule, "primaryOptionArray")
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}
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if (!primaryOptionArray) {
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return rawSettings
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}
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// Everything below is a rule that CAN have an array for a primary option ...
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// (they might also have something else, e.g. rule-properties-order can
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// have the string "alphabetical")
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if (rawSettings.length === 1 && Array.isArray(rawSettings[0])) {
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return rawSettings
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}
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if (rawSettings.length === 2 && !_.isPlainObject(rawSettings[0]) && _.isPlainObject(rawSettings[1])) {
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return rawSettings
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}
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return [rawSettings]
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}
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