@storybook/addon-coverage/dist/preset.js

Tools to support code coverage in Storybook

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/preset.ts
var preset_exports = {};
__export(preset_exports, {
  viteFinal: () => viteFinal,
  webpackFinal: () => webpackFinal
});
module.exports = __toCommonJS(preset_exports);

// src/constants.ts
var commonExtensions = [".js", ".cjs", ".mjs", ".ts", ".cts", ".mts"];
var defaultExtensions = [
  ...commonExtensions,
  ".tsx",
  ".jsx",
  ".vue",
  ".svelte"
];
var testFileExtensions = defaultExtensions.map((extension) => extension.slice(1)).join(",");
var configFileExtensions = commonExtensions.map((extension) => extension.slice(1)).join(",");
var defaultExclude = [
  "**/node_modules/**",
  ".storybook/**",
  "coverage/**",
  "packages/*/test{,s}/**",
  "**/*.d.ts",
  "**/*.mock.*",
  "test{,s}/**",
  `test{,-*}.{${testFileExtensions}}`,
  `**/*{.,-}{spec,story,stories,types}.{${testFileExtensions}}`,
  "**/__tests__/**",
  "**/*-entry.js",
  /* Exclude common development tool configuration files */
  `**/{ava,babel,nyc}.config.{${configFileExtensions}}`,
  `**/{jest,vitest}.config.{${configFileExtensions}}`,
  `**/{karma,rollup,webpack,vite}.config.{${configFileExtensions}}`,
  `**/.{eslint,mocha}rc.{${configFileExtensions}}`
];

// src/webpack5-exclude.ts
var import_test_exclude = __toESM(require("test-exclude"));

// src/nyc-config.ts
var import_load_nyc_config = require("@istanbuljs/load-nyc-config");
async function getNycConfig(opts = {}) {
  const cwd = opts.cwd ?? process.cwd();
  return (0, import_load_nyc_config.loadNycConfig)({
    cwd,
    nycrcPath: opts.nycrcPath
  });
}

// src/webpack5-exclude.ts
async function createTestExclude(opts = {}) {
  const { nycrcPath, include, exclude, extension } = opts;
  const cwd = opts.cwd ?? process.cwd();
  const nycConfig = await getNycConfig({
    cwd,
    nycrcPath
  });
  return new import_test_exclude.default({
    cwd,
    include: include ?? nycConfig.include,
    exclude: exclude ?? nycConfig.exclude ?? defaultExclude,
    extension: extension ?? nycConfig.extension ?? defaultExtensions,
    excludeNodeModules: true
  });
}

// src/preset.ts
var import_istanbul_lib_instrument = require("istanbul-lib-instrument");
var viteFinal = async (viteConfig, options) => {
  const viteIstanbulPlugin = (await import("vite-plugin-istanbul")).default;
  const istanbul = viteIstanbulPlugin ?? viteIstanbulPlugin.default;
  console.log("[addon-coverage] Adding istanbul plugin to Vite config");
  viteConfig.build = viteConfig.build || {};
  viteConfig.build.sourcemap = true;
  viteConfig.plugins ||= [];
  viteConfig.plugins.push(
    istanbul({
      forceBuildInstrument: options.configType === "PRODUCTION",
      ...options.istanbul,
      include: Array.from(options.istanbul?.include || []),
      exclude: [
        options.configDir + "/**",
        ...defaultExclude,
        ...Array.from(options.istanbul?.exclude || [])
      ],
      extension: options.istanbul?.extension || defaultExtensions
    })
  );
  return viteConfig;
};
var defaultOptions = {
  preserveComments: true,
  produceSourceMap: true,
  autoWrap: true,
  esModules: true,
  compact: false
};
var webpackFinal = async (webpackConfig, options) => {
  webpackConfig.module.rules ||= [];
  const nycConfig = await getNycConfig(options.istanbul);
  const extensions = options.istanbul?.extension ?? nycConfig.extension ?? defaultExtensions;
  console.log("[addon-coverage] Adding istanbul loader to Webpack config");
  const testExclude = await createTestExclude(options.istanbul);
  let instrumenterOptions = Object.assign(defaultOptions, options.istanbul);
  let instrumenter = (0, import_istanbul_lib_instrument.createInstrumenter)(instrumenterOptions);
  webpackConfig.module.rules.unshift({
    test: new RegExp(extensions?.join("|").replace(/\./g, "\\.")),
    loader: require.resolve("./loader/webpack5-istanbul-loader"),
    enforce: "post",
    options: {
      ...options.istanbul ?? {},
      instrumenter
    },
    include: (modulePath) => testExclude.shouldInstrument(modulePath)
  });
  return webpackConfig;
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  viteFinal,
  webpackFinal
});