How to codesign openFrameworks app without Apple developer license?

When I send openFrameworks app to my frined, app does not find data folder. This is because of "translocation", known issue on openFrameworks forum. There are couple of solution to avoid translocation but here I tried different way by codesigning. But quesion is, is it possible to codesign wihout Apple Developer license? Looks like possible...? https://stackoverflow.com/questions/27474751/how-can-i-codesign-an-app-without-being-in-the-mac-developer-program/27474942

Create Certificate

Open Keychain Access.
Choose Keychain Access > Certificate Assistant > Create Certificate ...
Enter a name
Set 'Certificate Type' to 'Code Signing'

compile oF app

just use xcode and compile

codesign

cd to/oF/apps/myApp
sudo codesign -fs "my-new-cert" myApp.app/Contents/Frameworks/libfmodex.dylib
sudo codesign -fs "my-new-cert" myApp.app
sudo codesign -dv myApp.app

Check

zip app with data folder
send or upload app via internet
open

Data folder Packaging

Do you want to put /data folder inside of the myApp.app?

Call ofSetDataPathRoot("../Resources/data/"); function from main.cpp or ofApp.cpp
Compile app with AppStore scheme
Make sure you have all data in myApp.app/Contents/Resources/data
Codesign like explained above
Done! Now you have codesigned, no security alarm, single package app ready to send to your friend.

Notice about timing of ofSetDataPathRoot()

I recommend to call ofSetDataPathRoot() in the very begining of main.cpp like example below.

#include "ofMain.h"
#include "ofApp.h"

int main(){
  ofSetDataPathRoot("../Resources/data/");    
  ofSetupOpenGL(1920,1080,OF_WINDOW);
  ofRunApp(new ofApp());
}

If we call ofSetDataPathRoot() in ofApp::setup(), app could crash or missing data. For example you have custom class which load data in its constructor, it can not find data. This is because your constructor can be called before ofApp::setup(), hence it try to find default data path)

hiroMTB/OSX, openFrameworks, codesign without developer license.md