NSUserDefaults+Override.m

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/*
 
NSUserDefaults+Override.m
 
Oolite
Copyright (C) 2004-2025 Giles C Williams and contributors
 
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
 
*/
 
 
#import "NSUserDefaults+Override.h"
#import <Foundation/NSData.h>
#import <Foundation/NSFileManager.h>
#import <Foundation/NSPropertyList.h>
 
@implementation NSUserDefaults (Override)
 
- (BOOL) writeDictionary: (NSDictionary*)dict
                  toFile: (NSString*)file
{
    if ([file length] == 0)
    {
        OOLog(@"NSUserDefaultsOverride", @"%@", @"Defaults database filename is empty when writing");
    }
    else if (nil == dict)
    {
        NSFileManager   *mgr = [NSFileManager defaultManager];
        
        return [mgr removeFileAtPath: file handler: nil];
    }
    else
    {
        NSData  *data;
        NSString    *err;
        
        err = nil;
        data = [NSPropertyListSerialization dataFromPropertyList: dict
        format: NSPropertyListOpenStepFormat
        errorDescription: &err];
        if (data == nil)
        {
            OOLog(@"NSUserDefaultsOverride", @"Failed to serialize defaults database for writing: %@", err);
        }
        else if ([data writeToFile: file atomically: YES] == NO)
        {
            OOLog(@"NSUserDefaultsOverride", @"Failed to write defaults database to file: %@", file);
        }
        else
        {
            return YES;
        }
    }
    
    return NO;
}
 
@end