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98 lines
3.1 KiB
98 lines
3.1 KiB
4 years ago
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/**
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* @fileoverview Common helpers for naming of plugins, formatters and configs
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*/
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"use strict";
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const NAMESPACE_REGEX = /^@.*\//iu;
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/**
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* Brings package name to correct format based on prefix
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* @param {string} name The name of the package.
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* @param {string} prefix Can be either "eslint-plugin", "eslint-config" or "eslint-formatter"
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* @returns {string} Normalized name of the package
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* @private
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*/
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function normalizePackageName(name, prefix) {
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let normalizedName = name;
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/**
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* On Windows, name can come in with Windows slashes instead of Unix slashes.
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* Normalize to Unix first to avoid errors later on.
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* https://github.com/eslint/eslint/issues/5644
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*/
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if (normalizedName.includes("\\")) {
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normalizedName = normalizedName.replace(/\\/gu, "/");
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}
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if (normalizedName.charAt(0) === "@") {
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/**
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* it's a scoped package
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* package name is the prefix, or just a username
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*/
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const scopedPackageShortcutRegex = new RegExp(`^(@[^/]+)(?:/(?:${prefix})?)?$`, "u"),
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scopedPackageNameRegex = new RegExp(`^${prefix}(-|$)`, "u");
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if (scopedPackageShortcutRegex.test(normalizedName)) {
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normalizedName = normalizedName.replace(scopedPackageShortcutRegex, `$1/${prefix}`);
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} else if (!scopedPackageNameRegex.test(normalizedName.split("/")[1])) {
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/**
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* for scoped packages, insert the prefix after the first / unless
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* the path is already @scope/eslint or @scope/eslint-xxx-yyy
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*/
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normalizedName = normalizedName.replace(/^@([^/]+)\/(.*)$/u, `@$1/${prefix}-$2`);
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}
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} else if (!normalizedName.startsWith(`${prefix}-`)) {
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normalizedName = `${prefix}-${normalizedName}`;
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}
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return normalizedName;
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}
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/**
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* Removes the prefix from a fullname.
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* @param {string} fullname The term which may have the prefix.
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* @param {string} prefix The prefix to remove.
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* @returns {string} The term without prefix.
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*/
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function getShorthandName(fullname, prefix) {
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if (fullname[0] === "@") {
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let matchResult = new RegExp(`^(@[^/]+)/${prefix}$`, "u").exec(fullname);
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if (matchResult) {
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return matchResult[1];
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}
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matchResult = new RegExp(`^(@[^/]+)/${prefix}-(.+)$`, "u").exec(fullname);
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if (matchResult) {
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return `${matchResult[1]}/${matchResult[2]}`;
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}
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} else if (fullname.startsWith(`${prefix}-`)) {
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return fullname.slice(prefix.length + 1);
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}
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return fullname;
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}
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/**
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* Gets the scope (namespace) of a term.
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* @param {string} term The term which may have the namespace.
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* @returns {string} The namepace of the term if it has one.
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*/
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function getNamespaceFromTerm(term) {
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const match = term.match(NAMESPACE_REGEX);
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return match ? match[0] : "";
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}
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//------------------------------------------------------------------------------
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// Public Interface
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//------------------------------------------------------------------------------
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module.exports = {
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normalizePackageName,
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getShorthandName,
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getNamespaceFromTerm
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};
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