从命令行压缩-如何修剪路径元素

[[NSFileManager defaultManager] changeCurrentDirectoryPath:path];

-[NSTask setCurrentDirectoryPath:]

NSString *targetZipPath = @\"/tmp/foo.zip\";
NSArray *args = [NSArray arrayWithObjects:@\"-r\", targetZipPath,
    @\"sub1\", @\"sub2\", nil];
NSTask *task = [[NSTask alloc] init];
[task setLaunchPath:@\"/usr/bin/zip\"];
[task setArguments:args];

// set path to be the parent directory of sub1, sub2
[task setCurrentDirectoryPath:path];
…

+ (BOOL)zipDirectory:(NSURL *)directoryURL toArchive:(NSString *)archivePath;
{
//Delete existing zip
if ( [[NSFileManager defaultManager] fileExistsAtPath:archivePath] ) {
    [[NSFileManager defaultManager] removeItemAtPath:archivePath error:nil];
}

//Specify action
NSString *toolPath = @\"/usr/bin/zip\";

//Get directory contents
NSArray *pathsArray = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:[directoryURL path] error:nil];

//Add arguments
NSMutableArray *arguments = [[[NSMutableArray alloc] init] autorelease];
[arguments insertObject:@\"-r\" atIndex:0];
[arguments insertObject:archivePath atIndex:0];
for ( NSString *filePath in pathsArray ) {
    [arguments addObject:filePath]; //Maybe this would even work by specifying relative paths with ./ or however that works, since we set the working directory before executing the command
    //[arguments insertObject:@\"-j\" atIndex:0];
}

//Switch to a relative directory for working.
NSString *currentDirectory = [[NSFileManager defaultManager] currentDirectoryPath]; 
[[NSFileManager defaultManager] changeCurrentDirectoryPath:[directoryURL path]];
//NSLog(@\"dir %@\", [[NSFileManager defaultManager] currentDirectoryPath]);

//Create
NSTask *task = [[[NSTask alloc] init] autorelease];
[task setLaunchPath:toolPath];
[task setArguments:arguments];

//Run
[task launch];
[task waitUntilExit];

//Restore normal path
[[NSFileManager defaultManager] changeCurrentDirectoryPath:currentDirectory];

//Update filesystem
[[NSWorkspace sharedWorkspace] noteFileSystemChanged:archivePath];

return ([task terminationStatus] == 0);
}