まず第一に、Xcode でデバッグおよび実行すると、すべてが期待どおりに機能します。
しかし、アプリを「共有」しようとすると、つまりリリース ビルドを作成すると、standardErrors が出力されている間、NSTask は standardOutput を出力しません。そんなことがあるものか?
私のコード
- (id)initWithWindow:(NSWindow *)window {
self = [super initWithWindow:window];
if (self) {
// Initialization code here.
}
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(readPipe:) name:NSFileHandleReadCompletionNotification object:nil];
return self;
}
-(void) watchFile:(NSNotification *)notification {
NSString *path = [[notification userInfo] valueForKey:@"path"];
task = [[NSTask alloc] init];
[task setLaunchPath:@"/usr/bin/compass"];
[task setCurrentDirectoryPath:path];
NSArray *arguments;
arguments = [NSArray arrayWithObjects: @"watch",@"--boring", nil];
[task setArguments: arguments];
NSPipe *outPipe, *errPipe;
outPipe = [NSPipe pipe];
errPipe = [NSPipe pipe];
[task setStandardOutput: outPipe];
[task setStandardError: errPipe];
[task setStandardInput: [NSPipe pipe]];
standardHandle = [outPipe fileHandleForReading];
[standardHandle readInBackgroundAndNotify];
errorHandle = [errPipe fileHandleForReading];
[errorHandle readInBackgroundAndNotify];
[self setSplitterPosition:0.0f];
[task launch];
}
-(void)readPipe:(NSNotification *)notification {
NSLog(@"reading pipe");
NSData *data;
NSString *text;
if(!([notification object] == standardHandle) && !([notification object] == errorHandle)) {
return;
}
data = [[notification userInfo] objectForKey:NSFileHandleNotificationDataItem];
text = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
if ([data length] == 0) {
//error
[self setSplitterPosition:150.0f];
return;
}
[terminalViewController updateTerminal:text];
if(![text isEqualToString:@"\n"]) [self growlAlert:text title:@"Compapp"];
[text release];
if(task) [[notification object] readInBackgroundAndNotify];
}