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141 lines
3.5 KiB
141 lines
3.5 KiB
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _postcss = _interopRequireDefault(require("postcss"));
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var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
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var _loaderUtils = require("loader-utils");
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var _utils = require("../utils");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const pluginName = 'postcss-import-parser';
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var _default = _postcss.default.plugin(pluginName, options => (css, result) => {
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const importsMap = new Map();
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css.walkAtRules(/^import$/i, atRule => {
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// Convert only top-level @import
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if (atRule.parent.type !== 'root') {
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return;
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} // Nodes do not exists - `@import url('http://') :root {}`
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if (atRule.nodes) {
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result.warn("It looks like you didn't end your @import statement correctly. Child nodes are attached to it.", {
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node: atRule
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});
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return;
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}
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const {
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nodes
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} = (0, _postcssValueParser.default)(atRule.params); // No nodes - `@import ;`
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// Invalid type - `@import foo-bar;`
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if (nodes.length === 0 || nodes[0].type !== 'string' && nodes[0].type !== 'function') {
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result.warn(`Unable to find uri in "${atRule.toString()}"`, {
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node: atRule
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});
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return;
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}
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let isStringValue;
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let url;
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if (nodes[0].type === 'string') {
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isStringValue = true;
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url = nodes[0].value;
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} else if (nodes[0].type === 'function') {
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// Invalid function - `@import nourl(test.css);`
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if (nodes[0].value.toLowerCase() !== 'url') {
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result.warn(`Unable to find uri in "${atRule.toString()}"`, {
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node: atRule
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});
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return;
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}
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isStringValue = nodes[0].nodes.length !== 0 && nodes[0].nodes[0].type === 'string';
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url = isStringValue ? nodes[0].nodes[0].value : _postcssValueParser.default.stringify(nodes[0].nodes);
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} // Empty url - `@import "";` or `@import url();`
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if (url.trim().length === 0) {
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result.warn(`Unable to find uri in "${atRule.toString()}"`, {
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node: atRule
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});
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return;
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}
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const isRequestable = (0, _loaderUtils.isUrlRequest)(url);
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if (isRequestable) {
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url = (0, _utils.normalizeUrl)(url, isStringValue); // Empty url after normalize - `@import '\
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// \
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// \
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// ';
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if (url.trim().length === 0) {
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result.warn(`Unable to find uri in "${atRule.toString()}"`, {
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node: atRule
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});
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return;
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}
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}
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const media = _postcssValueParser.default.stringify(nodes.slice(1)).trim().toLowerCase();
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if (options.filter && !options.filter({
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url,
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media
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})) {
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return;
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}
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atRule.remove();
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if (isRequestable) {
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const importKey = url;
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let importName = importsMap.get(importKey);
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if (!importName) {
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importName = `___CSS_LOADER_AT_RULE_IMPORT_${importsMap.size}___`;
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importsMap.set(importKey, importName);
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result.messages.push({
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type: 'import',
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value: {
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importName,
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url: options.urlHandler ? options.urlHandler(url) : url
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}
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});
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}
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result.messages.push({
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type: 'api-import',
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value: {
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type: 'internal',
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importName,
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media
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}
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});
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return;
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}
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result.messages.push({
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pluginName,
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type: 'api-import',
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value: {
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type: 'external',
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url,
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media
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}
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});
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});
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});
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exports.default = _default;
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