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backend/node_modules/postcss-load-config/src/index.js

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+// @ts-check
+const { resolve } = require('node:path')
+
+const config = require('lilconfig')
+const yaml = require('yaml')
+
+const loadOptions = require('./options.js')
+const loadPlugins = require('./plugins.js')
+const req = require('./req.js')
+
+const interopRequireDefault = obj =>
+  obj && obj.__esModule ? obj : { default: obj }
+
+/**
+ * Process the result from cosmiconfig
+ *
+ * @param  {Object} ctx Config Context
+ * @param  {Object} result Cosmiconfig result
+ *
+ * @return {Promise<Object>} PostCSS Config
+ */
+async function processResult(ctx, result) {
+  let file = result.filepath || ''
+  let projectConfig = interopRequireDefault(result.config).default || {}
+
+  if (typeof projectConfig === 'function') {
+    projectConfig = projectConfig(ctx)
+  } else {
+    projectConfig = Object.assign({}, projectConfig, ctx)
+  }
+
+  if (!projectConfig.plugins) {
+    projectConfig.plugins = []
+  }
+
+  let res = {
+    file,
+    options: await loadOptions(projectConfig, file),
+    plugins: await loadPlugins(projectConfig, file)
+  }
+  delete projectConfig.plugins
+  return res
+}
+
+/**
+ * Builds the Config Context
+ *
+ * @param  {Object} ctx Config Context
+ *
+ * @return {Object} Config Context
+ */
+function createContext(ctx) {
+  /**
+   * @type {Object}
+   *
+   * @prop {String} cwd=process.cwd() Config search start location
+   * @prop {String} env=process.env.NODE_ENV Config Enviroment, will be set to `development` by `postcss-load-config` if `process.env.NODE_ENV` is `undefined`
+   */
+  ctx = Object.assign(
+    {
+      cwd: process.cwd(),
+      env: process.env.NODE_ENV
+    },
+    ctx
+  )
+
+  if (!ctx.env) {
+    process.env.NODE_ENV = 'development'
+  }
+
+  return ctx
+}
+
+async function loader(filepath) {
+  return req(filepath)
+}
+
+/** @return {import('lilconfig').Options} */
+const withLoaders = (options = {}) => {
+  let moduleName = 'postcss'
+
+  return {
+    ...options,
+    loaders: {
+      ...options.loaders,
+      '.cjs': loader,
+      '.cts': loader,
+      '.js': loader,
+      '.mjs': loader,
+      '.mts': loader,
+      '.ts': loader,
+      '.yaml': (_, content) => yaml.parse(content),
+      '.yml': (_, content) => yaml.parse(content)
+    },
+    searchPlaces: [
+      ...(options.searchPlaces || []),
+      'package.json',
+      `.${moduleName}rc`,
+      `.${moduleName}rc.json`,
+      `.${moduleName}rc.yaml`,
+      `.${moduleName}rc.yml`,
+      `.${moduleName}rc.ts`,
+      `.${moduleName}rc.cts`,
+      `.${moduleName}rc.mts`,
+      `.${moduleName}rc.js`,
+      `.${moduleName}rc.cjs`,
+      `.${moduleName}rc.mjs`,
+      `${moduleName}.config.ts`,
+      `${moduleName}.config.cts`,
+      `${moduleName}.config.mts`,
+      `${moduleName}.config.js`,
+      `${moduleName}.config.cjs`,
+      `${moduleName}.config.mjs`
+    ]
+  }
+}
+
+/**
+ * Load Config
+ *
+ * @method rc
+ *
+ * @param  {Object} ctx Config Context
+ * @param  {String} path Config Path
+ * @param  {Object} options Config Options
+ *
+ * @return {Promise} config PostCSS Config
+ */
+function rc(ctx, path, options) {
+  /**
+   * @type {Object} The full Config Context
+   */
+  ctx = createContext(ctx)
+
+  /**
+   * @type {String} `process.cwd()`
+   */
+  path = path ? resolve(path) : process.cwd()
+
+  return config
+    .lilconfig('postcss', withLoaders(options))
+    .search(path)
+    .then(result => {
+      if (!result) {
+        throw new Error(`No PostCSS Config found in: ${path}`)
+      }
+      return processResult(ctx, result)
+    })
+}
+
+/**
+ * Autoload Config for PostCSS
+ *
+ * @author Michael Ciniawsky @michael-ciniawsky <michael.ciniawsky@gmail.com>
+ * @license MIT
+ *
+ * @module postcss-load-config
+ * @version 2.1.0
+ *
+ * @requires comsiconfig
+ * @requires ./options
+ * @requires ./plugins
+ */
+module.exports = rc