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• [DIR] ..
• [FILE] extensions.d.ts
• [FILE] extensions.js
• [FILE] extensions.js.map
• [FILE] index.d.ts
• [FILE] index.js
• [FILE] index.js.map
• [FILE] paths.d.ts
• [FILE] paths.js
• [FILE] paths.js.map

Просмотр файла: paths.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ensureSlash = ensureSlash;
exports.getPossibleProjectRoot = getPossibleProjectRoot;
exports.resolveEntryPoint = resolveEntryPoint;
exports.getEntryPoint = getEntryPoint;
exports.getEntryPointWithExtensions = getEntryPointWithExtensions;
exports.resolveFromSilentWithExtensions = resolveFromSilentWithExtensions;
exports.getFileWithExtensions = getFileWithExtensions;

function _fs() {
  const data = _interopRequireDefault(require("fs"));

  _fs = function () {
    return data;
  };

  return data;
}

function _path() {
  const data = _interopRequireDefault(require("path"));

  _path = function () {
    return data;
  };

  return data;
}

function _resolveFrom() {
  const data = _interopRequireDefault(require("resolve-from"));

  _resolveFrom = function () {
    return data;
  };

  return data;
}

function _Config() {
  const data = require("../Config");

  _Config = function () {
    return data;
  };

  return data;
}

function _extensions() {
  const data = require("./extensions");

  _extensions = function () {
    return data;
  };

  return data;
}

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// https://github.com/facebook/create-react-app/blob/9750738cce89a967cc71f28390daf5d4311b193c/packages/react-scripts/config/paths.js#L22
function ensureSlash(inputPath, needsSlash) {
  const hasSlash = inputPath.endsWith('/');

  if (hasSlash && !needsSlash) {
    return inputPath.substr(0, inputPath.length - 1);
  } else if (!hasSlash && needsSlash) {
    return `${inputPath}/`;
  } else {
    return inputPath;
  }
}

function getPossibleProjectRoot() {
  return _fs().default.realpathSync(process.cwd());
}

const nativePlatforms = ['ios', 'android'];

function resolveEntryPoint(projectRoot, {
  platform,
  projectConfig
}) {
  const platforms = nativePlatforms.includes(platform) ? [platform, 'native'] : [platform];
  return getEntryPoint(projectRoot, ['./index'], platforms, projectConfig);
}

function getEntryPoint(projectRoot, entryFiles, platforms, projectConfig) {
  const extensions = (0, _extensions().getBareExtensions)(platforms);
  return getEntryPointWithExtensions(projectRoot, entryFiles, extensions, projectConfig);
} // Used to resolve the main entry file for a project.


function getEntryPointWithExtensions(projectRoot, entryFiles, extensions, projectConfig) {
  const {
    exp,
    pkg
  } = projectConfig !== null && projectConfig !== void 0 ? projectConfig : (0, _Config().getConfig)(projectRoot, {
    skipSDKVersionRequirement: true
  }); // This will first look in the `app.json`s `expo.entryPoint` field for a potential main file.
  // We check the Expo config first in case you want your project to start differently with Expo then in a standalone environment.

  if (exp && exp.entryPoint && typeof exp.entryPoint === 'string') {
    // If the field exists then we want to test it against every one of the supplied extensions
    // to ensure the bundler resolves the same way.
    let entry = getFileWithExtensions(projectRoot, exp.entryPoint, extensions);

    if (!entry) {
      // Allow for paths like: `{ "main": "expo/AppEntry" }`
      entry = resolveFromSilentWithExtensions(projectRoot, exp.entryPoint, extensions); // If it doesn't resolve then just return the entryPoint as-is. This makes
      // it possible for people who have an unconventional setup (eg: multiple
      // apps in monorepo with metro at root) to customize entry point without
      // us imposing our assumptions.

      if (!entry) {
        return exp.entryPoint;
      }
    }

    return entry;
  } else if (pkg) {
    // If the config doesn't define a custom entry then we want to look at the `package.json`s `main` field, and try again.
    const {
      main
    } = pkg;

    if (main && typeof main === 'string') {
      // Testing the main field against all of the provided extensions - for legacy reasons we can't use node module resolution as the package.json allows you to pass in a file without a relative path and expect it as a relative path.
      let entry = getFileWithExtensions(projectRoot, main, extensions);

      if (!entry) {
        // Allow for paths like: `{ "main": "expo/AppEntry" }`
        entry = resolveFromSilentWithExtensions(projectRoot, main, extensions);
        if (!entry) throw new Error(`Cannot resolve entry file: The \`main\` field defined in your \`package.json\` points to a non-existent path.`);
      }

      return entry;
    }
  } // Now we will start looking for a default entry point using the provided `entryFiles` argument.
  // This will add support for create-react-app (src/index.js) and react-native-cli (index.js) which don't define a main.


  for (const fileName of entryFiles) {
    const entry = resolveFromSilentWithExtensions(projectRoot, fileName, extensions);
    if (entry) return entry;
  }

  try {
    // If none of the default files exist then we will attempt to use the main Expo entry point.
    // This requires `expo` to be installed in the project to work as it will use `node_module/expo/AppEntry.js`
    // Doing this enables us to create a bare minimum Expo project.
    // TODO(Bacon): We may want to do a check against `./App` and `expo` in the `package.json` `dependencies` as we can more accurately ensure that the project is expo-min without needing the modules installed.
    return (0, _resolveFrom().default)(projectRoot, 'expo/AppEntry');
  } catch {
    throw new Error(`The project entry file could not be resolved. Please either define it in the \`package.json\` (main), \`app.json\` (expo.entryPoint), create an \`index.js\`, or install the \`expo\` package.`);
  }
} // Resolve from but with the ability to resolve like a bundler


function resolveFromSilentWithExtensions(fromDirectory, moduleId, extensions) {
  for (const extension of extensions) {
    const modulePath = _resolveFrom().default.silent(fromDirectory, `${moduleId}.${extension}`);

    if (modulePath && modulePath.endsWith(extension)) {
      return modulePath;
    }
  }

  return _resolveFrom().default.silent(fromDirectory, moduleId) || null;
} // Statically attempt to resolve a module but with the ability to resolve like a bundler.
// This won't use node module resolution.


function getFileWithExtensions(fromDirectory, moduleId, extensions) {
  const modulePath = _path().default.join(fromDirectory, moduleId);

  if (_fs().default.existsSync(modulePath)) {
    return modulePath;
  }

  for (const extension of extensions) {
    const modulePath = _path().default.join(fromDirectory, `${moduleId}.${extension}`);

    if (_fs().default.existsSync(modulePath)) {
      return modulePath;
    }
  }

  return null;
}
//# sourceMappingURL=paths.js.map

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