NSTask NSPipe - objective c command line help

Question

Here is my code:

task = [[NSTask alloc] init];
[task setCurrentDirectoryPath:@\"/applications/jarvis/brain/\"];
[task setLaunchPath:@\"/applications/jarvis/b         


        

Answer 1

Xcode Bug
There's a bug in Xcode that stops it from printing any output after a a new task using standard output is launched (it collects all output, but no longer prints anything). You're going to have to call [task setStandardInput:[NSPipe pipe]] to get it to show output again (or, alternatively, have the task print to stderr instead of stdout).

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Suggestion for final code:

NSTask *server = [NSTask new];
[server setLaunchPath:@"/bin/sh"];
[server setArguments:[NSArray arrayWithObject:@"/path/to/server.sh"]];
[server setCurrentDirectoryPath:@"/path/to/current/directory/"];

NSPipe *outputPipe = [NSPipe pipe];
[server setStandardInput:[NSPipe pipe]];
[server setStandardOutput:outputPipe];

[server launch];
[server waitUntilExit]; // Alternatively, make it asynchronous.
[server release];

NSData *outputData = [[outputPipe fileHandleForReading] readDataToEndOfFile];
NSString *outputString = [[[NSString alloc] initWithData:outputData encoding:NSUTF8StringEncoding] autorelease]; // Autorelease optional, depending on usage.