Workaround userSetup file for viz/pipeline

userSetup.mel

// HACK: Workaround since a maya project's scripts folder is not added
// to the PYTHONPATH by default

// WARN: only one userSetup.mel is loaded.
// using this script will prevent several viz scripts from running
// Github issue has been logged and will be resolved on the viz/pipeline end
// given that a userSetup script should be available to... well, users.

// HACK: sourcing a mel file that sources other files is known to cause
// issues. See maya documentation:
// http://download.autodesk.com/global/docs/maya2012/en_us/Commands/source.html
print "loading viz menu manually";
source "/usr/aw/local/userSetup.mel";

print "adding project scripts/ dir to python sys.path\n";
string $workspace_path = `workspace -q -rd`;
string $workspace_scripts = `workspace -q -fre "scripts"`;
string $script_path = $workspace_path + $workspace_scripts;
string $userSetupPy = $script_path + "/" + "userSetup.py";

// NOTE: the string must start on the same line
string $py_script = `format -stringArg $script_path -stringArg $userSetupPy "\
import sys\n\
if \"^1s\" not in sys.path: \n\
    sys.path.insert(0, \"^1s\")\n\
\n\
try:\n\
    execfile(\"^2s\")\n\
except Exception as e:\n\
    print(\"Could not autoload userSetup.py\")\n\
    print(e)\
"`;

python($py_script);