Using NSTask to launch a Ruby script (Shenzhen) - objective-c

Question

I am trying to generate an IPA with the Shenzhen script: https://github.com/nomad/shenzhen
Here is the code I currently have:
-(void)startBuildIPAForProject:(NSString*)path
{
task = [[NSTask alloc] init];
[task setLaunchPath:#"/bin/bash"];
[task setCurrentDirectoryPath:path];
[task setArguments:#[#"ipa build",#"-c",#"Release"]];
NSPipe *pipe;
pipe = [NSPipe pipe];
[task setStandardOutput: pipe];
NSFileHandle *file;
file = [pipe fileHandleForReading];
[task launch];
NSData *data;
data = [file readDataToEndOfFile];
NSString *string;
string = [[NSString alloc] initWithData: data
encoding: NSUTF8StringEncoding];
NSLog(#"task output: %#",string);
[task waitUntilExit];
}
When executing [task launch] I get the following output from the console:
/bin/bash: ipa build: No such file or directory
When I use the regular terminal ipa build is working (that is, it tells me there exists no Xcode project in the current dir)
I'm a bit lost, so any help is greatly appreciated.

Answer 1

The ipa script will need to be in your application's PATH environment variable (or in the same directory as your binary.) An easy fix would be to specify the full, absolute path to ipa in your arguments. i.e. change:
[task setArguments:#[#"ipa build",#"-c",#"Release"]];
to
[task setArguments:#[#"/full/path/to/ipa build",#"-c",#"Release"]];