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- "use strict";
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = void 0;
- var _util = require("util");
- var _postcss = _interopRequireDefault(require("postcss"));
- var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
- var _utils = require("../utils");
- function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
- const pluginName = 'postcss-import-parser';
- function walkAtRules(css, result, options, callback) {
- const accumulator = [];
- css.walkAtRules(/^import$/i, atRule => {
- // Convert only top-level @import
- if (atRule.parent.type !== 'root') {
- return;
- } // Nodes do not exists - `@import url('http://') :root {}`
- if (atRule.nodes) {
- result.warn("It looks like you didn't end your @import statement correctly. Child nodes are attached to it.", {
- node: atRule
- });
- return;
- }
- const {
- nodes: paramsNodes
- } = (0, _postcssValueParser.default)(atRule.params); // No nodes - `@import ;`
- // Invalid type - `@import foo-bar;`
- if (paramsNodes.length === 0 || paramsNodes[0].type !== 'string' && paramsNodes[0].type !== 'function') {
- result.warn(`Unable to find uri in "${atRule.toString()}"`, {
- node: atRule
- });
- return;
- }
- let isStringValue;
- let url;
- if (paramsNodes[0].type === 'string') {
- isStringValue = true;
- url = paramsNodes[0].value;
- } else {
- // Invalid function - `@import nourl(test.css);`
- if (paramsNodes[0].value.toLowerCase() !== 'url') {
- result.warn(`Unable to find uri in "${atRule.toString()}"`, {
- node: atRule
- });
- return;
- }
- isStringValue = paramsNodes[0].nodes.length !== 0 && paramsNodes[0].nodes[0].type === 'string';
- url = isStringValue ? paramsNodes[0].nodes[0].value : _postcssValueParser.default.stringify(paramsNodes[0].nodes);
- } // Empty url - `@import "";` or `@import url();`
- if (url.trim().length === 0) {
- result.warn(`Unable to find uri in "${atRule.toString()}"`, {
- node: atRule
- });
- return;
- }
- accumulator.push({
- atRule,
- url,
- isStringValue,
- mediaNodes: paramsNodes.slice(1)
- });
- });
- callback(null, accumulator);
- }
- const asyncWalkAtRules = (0, _util.promisify)(walkAtRules);
- var _default = _postcss.default.plugin(pluginName, options => async (css, result) => {
- const parsedResults = await asyncWalkAtRules(css, result, options);
- if (parsedResults.length === 0) {
- return Promise.resolve();
- }
- const imports = new Map();
- const tasks = [];
- for (const parsedResult of parsedResults) {
- const {
- atRule,
- url,
- isStringValue,
- mediaNodes
- } = parsedResult;
- let normalizedUrl = url;
- let prefix = '';
- const isRequestable = (0, _utils.isUrlRequestable)(normalizedUrl);
- if (isRequestable) {
- const queryParts = normalizedUrl.split('!');
- if (queryParts.length > 1) {
- normalizedUrl = queryParts.pop();
- prefix = queryParts.join('!');
- }
- normalizedUrl = (0, _utils.normalizeUrl)(normalizedUrl, isStringValue); // Empty url after normalize - `@import '\
- // \
- // \
- // ';
- if (normalizedUrl.trim().length === 0) {
- result.warn(`Unable to find uri in "${atRule.toString()}"`, {
- node: atRule
- }); // eslint-disable-next-line no-continue
- continue;
- }
- }
- let media;
- if (mediaNodes.length > 0) {
- media = _postcssValueParser.default.stringify(mediaNodes).trim().toLowerCase();
- }
- if (options.filter && !options.filter(normalizedUrl, media)) {
- // eslint-disable-next-line no-continue
- continue;
- }
- atRule.remove();
- if (isRequestable) {
- const request = (0, _utils.requestify)(normalizedUrl, options.rootContext);
- tasks.push((async () => {
- const {
- resolver,
- context
- } = options;
- const resolvedUrl = await (0, _utils.resolveRequests)(resolver, context, [...new Set([request, normalizedUrl])]);
- return {
- url: resolvedUrl,
- media,
- prefix,
- isRequestable
- };
- })());
- } else {
- tasks.push({
- url,
- media,
- prefix,
- isRequestable
- });
- }
- }
- const results = await Promise.all(tasks);
- for (let index = 0; index <= results.length - 1; index++) {
- const {
- url,
- isRequestable,
- media
- } = results[index];
- if (isRequestable) {
- const {
- prefix
- } = results[index];
- const newUrl = prefix ? `${prefix}!${url}` : url;
- const importKey = newUrl;
- let importName = imports.get(importKey);
- if (!importName) {
- importName = `___CSS_LOADER_AT_RULE_IMPORT_${imports.size}___`;
- imports.set(importKey, importName);
- options.imports.push({
- importName,
- url: options.urlHandler(newUrl),
- index
- });
- }
- options.api.push({
- importName,
- media,
- index
- }); // eslint-disable-next-line no-continue
- continue;
- }
- options.api.push({
- url,
- media,
- index
- });
- }
- return Promise.resolve();
- });
- exports.default = _default;
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