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/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow strict-local
 * @format
 * @oncall react_native
 */

'use strict';

const path = require('path');

/**
 * This function is used by the CLI to decide whether a JS/TS file has to be processed or not by the Codegen.
 * Parameters:
 *   - file: the path to the file
 *   - currentPlatform: the current platform for which we are creating the specs
 * Returns: `true` if the file can be used to generate some code; `false` otherwise
 *
 */
function filterJSFile(
  file: string,
  currentPlatform: ?string,
  excludeRegExp: ?RegExp,
): boolean {
  const isSpecFile = /^(Native.+|.+NativeComponent)/.test(path.basename(file));
  const isNotNativeUIManager = !file.endsWith('NativeUIManager.js');
  const isNotTest = !file.includes('__tests');
  const isNotExcluded = excludeRegExp == null || !excludeRegExp.test(file);
  const isNotTSTypeDefinition = !file.endsWith('.d.ts');

const isValidCandidate =
    isSpecFile &&
    isNotNativeUIManager &&
    isNotExcluded &&
    isNotTest &&
    isNotTSTypeDefinition;

const filenameComponents = path.basename(file).split('.');
  const isPlatformAgnostic = filenameComponents.length === 2;

if (currentPlatform == null) {
    // need to accept only files that are platform agnostic
    return isValidCandidate && isPlatformAgnostic;
  }

// If a platform is passed, accept both platform agnostic specs...
  if (isPlatformAgnostic) {
    return isValidCandidate;
  }

// ...and specs that share the same platform as the one passed.
  // specfiles must follow the pattern: <filename>[.<platform>].(js|ts|tsx)
  const filePlatform =
    filenameComponents.length > 2 ? filenameComponents[1] : 'unknown';
  return isValidCandidate && currentPlatform === filePlatform;
}

module.exports = {
  filterJSFile,
};

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Name	Size	Perms	Modified	Actions
combine-js-to-schema-cli.js	2.36 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
combine-js-to-schema-cli.js.flow	1.13 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive
combine-js-to-schema.js	4.50 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
combine-js-to-schema.js.flow	3.10 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive
combine-schemas-cli.js	2.29 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
combine-schemas-cli.js.flow	2.37 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive
combine-utils.js	1.84 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
combine-utils.js.flow	1.91 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive

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