import path from 'path';
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import util from 'util';
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import glob from 'glob';
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import type {LoaderContext, StyleResourcesLoaderNormalizedOptions} from '..';
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import {isStyleFile} from './type-guards';
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/* eslint-disable-next-line @typescript-eslint/no-unsafe-member-access */
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const isLegacyWebpack = (ctx: any): ctx is {options: {context: string}} => !!ctx.options;
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const getRootContext = (ctx: LoaderContext) => {
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/* istanbul ignore if: will be deprecated soon */
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if (isLegacyWebpack(ctx)) {
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return ctx.options.context;
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}
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return ctx.rootContext;
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};
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const flatten = <T>(items: T[][]) => {
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const emptyItems: T[] = [];
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return emptyItems.concat(...items);
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};
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export const matchFiles = async (ctx: LoaderContext, options: StyleResourcesLoaderNormalizedOptions) => {
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const {patterns, globOptions} = options;
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const files = await Promise.all(
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patterns.map(async pattern => {
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const rootContext = getRootContext(ctx);
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const absolutePattern = path.isAbsolute(pattern) ? pattern : path.resolve(rootContext, pattern);
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const partialFiles = await util.promisify(glob)(absolutePattern, globOptions);
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return partialFiles.filter(isStyleFile);
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}),
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);
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/**
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* Glob always returns Unix-style file paths which would have cache invalidation problems on Windows.
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* Use `path.resolve()` to convert Unix-style file paths to system-compatible ones.
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*
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* @see {@link https://github.com/yenshih/style-resources-loader/issues/17}
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*/
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return [...new Set(flatten(files))].map(file => path.resolve(file));
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};
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