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node_modules/stylelint/lib/postcssPlugin.mjs

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+import { isAbsolute, join } from 'node:path';
+import process from 'node:process';
+
+import createStylelint from './createStylelint.mjs';
+import { isString } from './utils/validateTypes.mjs';
+import lintSource from './lintSource.mjs';
+
+/** @import {Config as StylelintConfig, PostcssPluginOptions} from 'stylelint' */
+
+/**
+ * @type {import('postcss').PluginCreator<PostcssPluginOptions>}
+ */
+export default function postcssPlugin(options = {}) {
+	const [cwd, tailoredOptions] = isConfig(options)
+		? [process.cwd(), { config: options }]
+		: [('cwd' in options && isString(options.cwd) && options.cwd) || process.cwd(), options];
+	const stylelint = createStylelint(tailoredOptions);
+
+	return {
+		postcssPlugin: 'stylelint',
+
+		/**
+		 * @param {import('postcss').Root} root
+		 * @param {import('postcss').Helpers} helpers
+		 * @returns {Promise<void>}
+		 */
+		async Once(root, { result }) {
+			let filePath = root.source && root.source.input.file;
+
+			if (filePath && !isAbsolute(filePath)) {
+				filePath = join(cwd, filePath);
+			}
+
+			await lintSource(stylelint, {
+				filePath,
+				existingPostcssResult: result,
+			});
+		},
+	};
+}
+
+postcssPlugin.postcss = true;
+
+/**
+ * @param {PostcssPluginOptions} options
+ * @returns {options is StylelintConfig}
+ */
+function isConfig(options) {
+	return 'rules' in options;
+}