Parallel development of diverged source streams

A computer program product to manage parallel development of diverged source streams, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to:

• track, on a position-by-position basis in a diverged code history associated with a diverged source stream, an origin source stream and an original position of code contained within the diverged source stream;
• detect a modification to a first portion of the code contained within the diverged source stream at a first position;
• automatically document the modification and the first position in the diverged code history;
• detect a move of a second portion of the code in the diverged source stream from a second position to a third position;
• automatically document the move and the second position in the diverged code history;
• detect an addition of a third portion of the code in the diverged source stream at a fourth position;
• automatically document the addition in the diverged code history;
• and
• track, on a position-by-position basis in an origin code history associated with the origin source stream, the origin source stream, an original position, the diverged source stream and a diverged position of code contained within the origin source stream.