I am reading old files that still use HFS style paths, such as VolumeName:Folder:File.
I need to convert them into POSIX paths.
I do not like to do string replacement as it is a bit tricky, nor do I want to invoke AppleScript or Shell operations for this task.
Is there a framework function to accomplish this? Deprecation is not an issue.
BTW, here's a solution for the inverse operation.
The “reverse” operation of CFURLCopyFileSystemPath() is CFURLCreateWithFileSystemPath(). Similarly as in the referenced Q&A, you have create the path style from the raw enumeration value since CFURLPathStyle.cfurlhfsPathStyle is deprecated and not available. Example:
let hfsPath = "Macintosh HD:Applications:Xcode.app"
if let url = CFURLCreateWithFileSystemPath(nil, hfsPath as CFString,
CFURLPathStyle(rawValue: 1)!, true) as URL? {
print(url.path) // /Applications/Xcode.app
}
A solution in Obj-C and Swift as category / extension of NSString / String. The unavailable kCFURLHFSPathStyle style is circumvented in the same way as in the linked question.
Objective-C
@implementation NSString (POSIX_HFS)
- (NSString *)POSIXPathFromHFSPath
{
NSString *posixPath = nil;
CFURLRef fileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, (CFStringRef)self, 1, [self hasSuffix:@":"]); // kCFURLHFSPathStyle
if (fileURL) {
posixPath = [(__bridge NSURL*)fileURL path];
CFRelease(fileURL);
}
return posixPath;
}
@end
Swift
extension String {
func posixPathFromHFSPath() -> String?
{
guard let fileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
self as CFString?,
CFURLPathStyle(rawValue:1)!,
self.hasSuffix(":")) else { return nil }
return (fileURL as URL).path
}
}