Xcode / mod_pbxproj：如何设置ENABLE_BITCODE

Question

I am trying to modify a Unity3D generated Xcode project with mod_pbxproj.py called from a python script which is triggered by a PostProcessBuild attribute. I need to set ENABLE_BITCODE = NO due to the problem described in New warnings in iOS 9 .

I am a Python newbie and don't know much about the Xcode PBX internals. I tried a number of calls like

    project.add_flags ('ENABLE_BITCODE=NO')

or array, dictionary, etc. variants. Everything I tried either did not do the job or threw an error in the system logs. Finally I ended up with a patch in mod_pbxproj.py which does what I want:

def add_other_buildsetting(self, flag, value):
    build_configs = [b for b in self.objects.values() if b.get('isa') == 'XCBuildConfiguration']
    for b in build_configs:
        if b.add_other_buildsetting(flag, value):
            self.modified = True

and

def add_other_buildsetting(self, flag, value):
    modified = False
    base = 'buildSettings'
    key = flag

    if not self.has_key(base):
        self[base] = PBXDict()
    self[base][key] = value                             
    modified = True
    return modified

Now calling project.add_other_buildsetting ('ENABLE_BITCODE', 'NO') works almost as expected. I got 5 entries in the pbxproj file instead of the 2 changes I noticed when setting the option manually in Xcode. Anyway it seems to work so far.

But: Patching a well known piece of software feels pretty strange and I cannot believe that it is not possible to add (or modify) an option in the root of the buildSettings tree using the standard mod_pbxproj.py.

How can this be achieved?

Edit: My fork of mod_pbxproj

Answer 1

As long as you have latest mod_pbxproj.py this works fine:

project.add_flags({'ENABLE_BITCODE':'NO'})

You can get mod_pbxproj.py from here: https://github.com/kronenthaler/mod-pbxproj/blob/master/mod_pbxproj/mod_pbxproj.py