Issue 6621

lib/io.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 64 matching lines @@
    *    endings)
    * @return {Promise}
    *    Promise to be resolved or rejected once the operation is completed
    */
   writeToFile(fileName, data)
   {
     return saveFile(fileName, data);
   },
 
   /**
-   * Copies a file.
-   * @param {string} fromFile
-   *    Name of the file to be copied
-   * @param {string} toFile
-   *    Name of the file to be written, will be overwritten if exists
-   * @return {Promise}
-   *    Promise to be resolved or rejected once the operation is completed
-   */
-  copyFile(fromFile, toFile)
-  {
-    return loadFile(fromFile).then(entry => saveFile(toFile, entry.content));
-  },
-
-  /**
    * Renames a file.
    * @param {string} fromFile
    *    Name of the file to be renamed
    * @param {string} newName
    *    New file name, will be overwritten if exists
    * @return {Promise}
    *    Promise to be resolved or rejected once the operation is completed
    */
   renameFile(fromFile, newName)
   {
     return loadFile(fromFile)
       .then(entry => browser.storage.local.set({[fileToKey(newName)]: entry}))
-      .then(() => this.removeFile(fromFile));
+      .then(() => browser.storage.local.remove(fileToKey(fromFile)));
   },
 
   /**
-   * Removes a file.
-   * @param {string} fileName
-   *    Name of the file to be removed
-   * @return {Promise}
-   *    Promise to be resolved or rejected once the operation is completed
-   */
-  removeFile(fileName)
-  {
-    return browser.storage.local.remove(fileToKey(fileName));
-  },
-
-  /**
    * Retrieves file metadata.
    * @param {string} fileName
    *    Name of the file to be looked up
    * @return {Promise.<StatData>}
    *    Promise to be resolved with file metadata once the operation is
    *    completed
    */
   statFile(fileName)
   {
     return loadFile(fileName).then(entry =>
     {
       return {
         exists: true,
         lastModified: entry.lastModified
       };
     }).catch(error =>
     {
       if (error.type == "NoSuchFile")
         return {exists: false};
       throw error;
     });
   }
 };