run any process with a badge!

badge.py

#!/usr/bin/env python

import sys
sys.path.insert(0, '/System/Library/PrivateFrameworks/LLDB.framework/Resources/Python')

import lldb

dbg = lldb.SBDebugger.Create()
dbg.SetAsync(False)

target = dbg.CreateTarget(None)

ci = dbg.GetCommandInterpreter()
cro = lldb.SBCommandReturnObject()


def do(pid, badge_title):
    listener = lldb.SBListener()
    errp = lldb.SBError()
    
    process = target.AttachToProcessWithID(listener, int(pid), errp)
    print 'attach:', errp

    ci.HandleCommand('po [[NSApp dockTile] setBadgeLabel:@"{}"]'.format(badge_title.replace('"', '''\"''')), cro)
    print 'command:', cro

    return process

if __name__ == '__main__':
    pid, badge_title = sys.argv[1:3]
    do(int(pid), badge_title)

gistfile1.sh

sudo dtrace -w -q -n 'syscall::*fork*:return /execname=="launchd"/ { trace(arg0); exit(0) }' \
       -c "sudo -u $USER open -na /Applications/Emacs.app dev/hs/aeson-0.6.1.0" \
       | xargs -n1 -t -J % ~/badge.py % "aeson"