github.com/psiphon-Labs/psiphon-tunnel-core@v2.0.28+incompatible/MobileLibrary/iOS/PsiphonTunnel/PsiphonTunnel/Utils/Backups.m (about)

     1  /*
     2   * Copyright (c) 2019, Psiphon Inc.
     3   * All rights reserved.
     4   *
     5   * This program is free software: you can redistribute it and/or modify
     6   * it under the terms of the GNU General Public License as published by
     7   * the Free Software Foundation, either version 3 of the License, or
     8   * (at your option) any later version.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  #import "Backups.h"
    21  
    22  @implementation Backups
    23  
    24  // See comment in header
    25  + (BOOL)excludeFileFromBackup:(NSString*)filePath err:(NSError**)err {
    26      *err = nil;
    27  
    28      // The URL must be of the file scheme ("file://"), otherwise the `setResourceValue:forKey:error`
    29      // operation will silently fail with: "CFURLCopyResourcePropertyForKey failed because passed URL
    30      // no scheme".
    31      NSURL *urlWithScheme = [NSURL fileURLWithPath:filePath];
    32  
    33      return [urlWithScheme setResourceValue:[NSNumber numberWithBool:YES]
    34                                      forKey:NSURLIsExcludedFromBackupKey
    35                                       error:err];
    36  }
    37  
    38  @end