A published code base doesn't necessarily mean a full revision history, just something others can reproducibly build and run.
If your claims don't depend on specific behaviours of some body of code, you wouldn't need it - eg, an article claiming some asymptotic performance of an algorithm should describe the algorithm in the abstract s.t. the performance bound can be proven, not some specific language's implementation of the algorithm.
If your claims don't depend on specific behaviours of some body of code, you wouldn't need it - eg, an article claiming some asymptotic performance of an algorithm should describe the algorithm in the abstract s.t. the performance bound can be proven, not some specific language's implementation of the algorithm.