Re: Using NSTask to execute softwareupdate

Hi Charles,

Unfortunately I have not come across a solution to the problem as of =
yet.

Colin.

On 2011-09-16, at 11:29 AM, sunfire wrote:

>=20
> Hi Colin,
> I'm having the same issue and I have been unsuccessful in fixing it. =
Did you
> ever resolve this?
>=20
> Thanks,
> Charles
>=20
>=20
> Colin Swelin wrote:
>>=20
>> Hi,
>>=20
>> Sorry for the long reply. I  gave this a try and it looked promising,
>> however, the task still hangs at the "writing files" step of few =
patches.
>> It's reading the buffer correctly, as its output everything up to =
that
>> point.
>>=20
>> Anyone have any insight to why the 10.6.6 update does this?
>>=20
>> Thanks again,
>> Colin
>>=20
>> On 2011-01-08, at 1:27 PM, Tom Jones wrote:
>>=20
>>> The problem is the use of "waitUntilExit" the buffer is filling up.=20=

>>>=20
>>> Try something like this...
>>> ( You might have to clean some of it up :-) )
>>>=20
>>> Tom
>>>=20
>>> - (void)runTask:(NSDictionary *)patch
>>> {
>>> NSTask *task =3D [[NSTask alloc] init];
>>> [task setLaunchPath: @"/usr/sbin/softwareupdate"];
>>> [task setArguments:[NSArray arrayWithObjects:@"-i", [patch
>>> objectForKey:@"patch_identifier"], nil]];
>>> [task setEnvironment:[NSDictionary dictionaryWithObject:@"1"
>>> forKey:@"COMMAND_LINE_INSTALL"]];
>>>=20
>>> NSPipe *install_pipe =3D [NSPipe pipe];
>>> [task setStandardOutput: install_pipe];
>>> [task setStandardError: install_pipe];
>>> =09
>>> NSFileHandle *file =3D [install_pipe fileHandleForReading];
>>>=20
>>>=20
>>> [[NSNotificationCenter defaultCenter] addObserver: self
>>> 										=
 selector: @selector(taskEnded:)
>>> 										=
	 name: NSTaskDidTerminateNotification
>>> 										=
   object: file];
>>>=20
>>> [[NSNotificationCenter defaultCenter] addObserver: self
>>> 										=
 selector: @selector(readFromTask:)
>>> 										=
	 name: NSFileHandleDataAvailableNotification
>>> 										=
   object: file];
>>>=20
>>> [file readInBackgroundAndNotify];
>>> [task launch];
>>> [task release];
>>> }
>>>=20
>>>=20
>>> - (void)readFromTask:(NSNotification *)aNotification
>>> {
>>> NSData *data =3D [[aNotification userInfo] objectForKey:
>>> NSFileHandleNotificationDataItem];
>>> if ([data length]) {
>>> 	/* Process data */
>>> 	[[aNotification object] readInBackgroundAndNotify];
>>> }
>>> }
>>>=20
>>> - (void)taskEnded:(NSNotification *)aNotification
>>> {
>>> 	// Task is full complete
>>> 	[[NSNotificationCenter defaultCenter] removeObserver:self];
>>> }
>>>=20
>>>=20
>>>=20
>>> On Jan 8, 2011, at 9:59 AM, Colin Swelin wrote:
>>>=20
>>>> Here's the basic NSTask stuff:
>>>>=20
>>>>=20
>>>> 			NSPipe *pipes =3D [NSPipe pipe];
>>>> 			NSTask* patchInstall =3D [[NSTask alloc] init];
>>>>                       [patchInstall
>>>> setLaunchPath:@"/usr/sbin/softwareupdate"];
>>>> 			[patchInstall setArguments:[NSArray =
arrayWithObjects:@"-i", [patch
>>>> objectForKey:@"patch_identifier"], nil]];
>>>> 		=09
>>>> 			[patchInstall setStandardOutput: pipes];
>>>>=20
>>>>                       NSFileHandle *file =3D [pipes
>>>> fileHandleForReading];
>>>> 		=09
>>>> 			[patchInstall launch];
>>>> 		=09
>>>> 			NSData *data =3D [file readDataToEndOfFile];
>>>> 		=09
>>>> 			[patchInstall waitUntilExit];
>>>>=20
>>>>=20
>>>>                         ......
>>>>                      [patchInstall release];
>>>>=20
>>>>=20
>>>> So i'm waiting for the task to complete, then I do my thing with =
the
>>>> results.=20
>>>>=20
>>>> Thanks,
>>>> Colin
>>>>=20
>>>> On Sat, Jan 8, 2011 at 12:48 PM, Tom Jones <[email protected]> =
wrote:
>>>> Hi Colin,
>>>> I would need to see your NSTask code, to really know. Are you using
>>>> notifications as data becomes available or are you waiting until =
the
>>>> task has completed?
>>>>=20
>>>>=20
>>>> Thanks,
>>>> tom
>>>>=20
>>>>=20
>>>> On Jan 6, 2011, at 8:54 AM, Colin Swelin wrote:
>>>>=20
>>>>> Hi,
>>>>>=20
>>>>> I"m currently using NSTask to execute softwareupdate to install
>>>>> patches, however, there's a few patches that seem to hang when =
trying
>>>>> to install. For example, the latest 10.6.6 update and a older =
iTunes
>>>>> patch, everything else seems to work perfectly fine.
>>>>>=20
>>>>> Anyone have any clues to why this might happen? I've set the
>>>>> "COMMAND_LINE_INSTALL" environment variable to 1, so i'm a little
>>>>> confused to why this is happening.
>>>>>=20
>>>>> Thanks._______________________________________________
>>>>> MacOSX-dev mailing list
>>>>> [email protected]
>>>>> http://www.omnigroup.com/mailman/listinfo/macosx-dev
>>>>=20
>>>>=20
>>>=20
>>=20
>> _______________________________________________
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>>=20
>>=20
>=20
> --=20
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>=20
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