Cordova/PhoneGap: List all files entries in directories provided.

cordovaListFileEntries.js

/**
 * Starter vars.
 */
var index = 0;
var i;

/**
 * Need cordova.file plugin.
 * $ cordova plugin add org.apache.cordova.file
 * 
 * To get all urls see https://github.com/apache/cordova-plugin-file/blob/master/README.md#where-to-store-files
 * 
 */
var localURLs    = [
  cordova.file.cacheDirectory,
  cordova.file.applicationDirectory,
  cordova.file.applicationStorageDirectory,
  cordova.file.dataDirectory,
  cordova.file.documentsDirectory,
  cordova.file.externalApplicationStorageDirectory,
  cordova.file.externalCacheDirectory,
  cordova.file.externalRootDirectory,
  cordova.file.externalDataDirectory,
  cordova.file.sharedDirectory,
  cordova.file.syncedDataDirectory
];

/**
 * Recursive function for file entry.
 */
var addFileEntry = function (entry) {
  var dirReader = entry.createReader();
  dirReader.readEntries(
    function (entries) {
      var fileStr = "";
      var i;
      for (i = 0; i < entries.length; i++) {
        if (entries[i].isDirectory === true) {
          // Recursive -- call back into this subdirectory
          addFileEntry(entries[i]);
        } else {
          console.log(entries[i].fullPath);
          index++;
        }
      }
    },
    function (error) {
      console.error("readEntries error: " + error.code);
    }
  );
};

/**
 * Directory error.
 */
var addError = function (error) {
  console.error("getDirectory error: " + error.code);
};

/**
 * Loop through the array.
 */
for (i = 0; i < localURLs.length; i++) {
  if (localURLs[i] === null || localURLs[i].length === 0) {
    continue; // skip blank / non-existent paths for this platform
  }
  window.resolveLocalFileSystemURL(localURLs[i], addFileEntry, addError);
}

readEntries() doesn't necessarily return all the entries, it's capped at 100 per call, you must call again readEntries() until the array is empty -> https://stackoverflow.com/questions/23823548/maximum-files-of-a-directory-that-can-be-read-by-filereaderreadentries-in-javas