@dr.pogodin/react-native-static-server/lib/module/utils.js

Embedded HTTP server for React Native

"use strict";

import { Platform } from "react-native";
import { DocumentDirectoryPath, MainBundlePath } from "@dr.pogodin/react-native-fs";
import { IS_MAC_CATALYST } from "./constants.js";
function getPlatform() {
  switch (Platform.OS) {
    case "android":
      return "ANDROID";
    case "ios":
      return IS_MAC_CATALYST ? "MACOS" : "IOS";
    case "windows":
      return "WINDOWS";
    default:
      throw Error(`Unsupported platform ${Platform.OS}`);
  }
}
const PLATFORM = getPlatform();
const BASE_ASSET_DIRS = {
  ANDROID: DocumentDirectoryPath,
  IOS: MainBundlePath || "",
  MACOS: `${MainBundlePath}/Contents/Resources`,
  WINDOWS: MainBundlePath || ""
};
const BASE_ASSET_DIR = BASE_ASSET_DIRS[PLATFORM];
const SEP = PLATFORM === "WINDOWS" ? "\\" : "/";

/**
 * Returns `true` if given path is absolute, `false` otherwise.
 * @param {string} path
 * @return {boolean}
 */
function isAbsolutePath(path) {
  if (!path) return false;
  if (Platform.OS === "windows") {
    return !!path.match(/^[a-zA-Z]:\\/);
  }

  // This should do for Android and iOS.
  return path.startsWith("/") || path.startsWith("file:///");
}

/**
 * If given `path` is relative, it returns the corresponding absolute path,
 * resolved relative to the platform-specific base location for bundled assets;
 * otherwise, it just returns given absolute path as is.
 * @param path Absolute or relative path.
 * @return Absolute path.
 */
export function resolveAssetsPath(path) {
  return isAbsolutePath(path) ? path : `${BASE_ASSET_DIR}${SEP}${path}`;
}
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