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106 lines
2.7 KiB
106 lines
2.7 KiB
4 weeks ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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/**
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* @template T
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* @typedef {Record<string, string | string[] | T>} Item
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*/
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/**
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* @template T
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* @typedef {(string | Item<T>)[] | Item<T>} ContainerOptionsFormat
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*/
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/**
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* @template T
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* @template N
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* @param {ContainerOptionsFormat<T>} options options passed by the user
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* @param {function(string | string[], string) : N} normalizeSimple normalize a simple item
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* @param {function(T, string) : N} normalizeOptions normalize a complex item
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* @param {function(string, N): void} fn processing function
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* @returns {void}
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*/
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const process = (options, normalizeSimple, normalizeOptions, fn) => {
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/**
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* @param {(string | Item<T>)[]} items items
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*/
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const array = items => {
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for (const item of items) {
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if (typeof item === "string") {
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fn(item, normalizeSimple(item, item));
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} else if (item && typeof item === "object") {
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object(item);
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} else {
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throw new Error("Unexpected options format");
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}
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}
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};
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/**
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* @param {Item<T>} obj an object
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*/
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const object = obj => {
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for (const [key, value] of Object.entries(obj)) {
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if (typeof value === "string" || Array.isArray(value)) {
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fn(key, normalizeSimple(value, key));
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} else {
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fn(key, normalizeOptions(value, key));
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}
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}
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};
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if (!options) {
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// Do nothing
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} else if (Array.isArray(options)) {
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array(options);
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} else if (typeof options === "object") {
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object(options);
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} else {
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throw new Error("Unexpected options format");
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}
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};
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/**
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* @template T
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* @template R
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* @param {ContainerOptionsFormat<T>} options options passed by the user
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* @param {function(string | string[], string) : R} normalizeSimple normalize a simple item
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* @param {function(T, string) : R} normalizeOptions normalize a complex item
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* @returns {[string, R][]} parsed options
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*/
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const parseOptions = (options, normalizeSimple, normalizeOptions) => {
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/** @type {[string, R][]} */
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const items = [];
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process(options, normalizeSimple, normalizeOptions, (key, value) => {
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items.push([key, value]);
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});
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return items;
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};
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/**
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* @template T
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* @param {string} scope scope name
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* @param {ContainerOptionsFormat<T>} options options passed by the user
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* @returns {Record<string, string | string[] | T>} options to spread or pass
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*/
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const scope = (scope, options) => {
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/** @type {Record<string, string | string[] | T>} */
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const obj = {};
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process(
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options,
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item => /** @type {string | string[] | T} */ (item),
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item => /** @type {string | string[] | T} */ (item),
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(key, value) => {
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obj[
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key.startsWith("./") ? `${scope}${key.slice(1)}` : `${scope}/${key}`
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] = value;
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}
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);
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return obj;
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};
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module.exports.parseOptions = parseOptions;
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module.exports.scope = scope;
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