Verifying historical artifacts in disparate source control systems

A computer program product for verifying historical artifacts in disparate source control systems, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• obtain, by the processor, historical artifacts from a target repository;
• obtain, by the processor, historical artifacts from a source repository;
• verify, by the processor, the historical artifacts in the target repository match the historical artifacts in the source repository, further causing the processor to:
• compare, by the processor, commit data in the historical artifacts in the target repository with commit data in the historical artifacts in the source repository;
• and
• evaluate, by the processor, whether each commit data event in the historical artifacts in the target repository is equivalent to the a corresponding commit data event in the historical artifacts in the source repository, further causing the processor to:
• log, by the processor, a commit data event in the historical artifacts in the target repository which is not equivalent to a corresponding commit data event in the historical artifacts in the source repository;
• and
• review, by the processor, the logging results;
• wherein:
• the metadata for the source repository and the target repository is in a standardized format;
• commit data comprises:
• commit changes, comments, authorship information, metadata and timestamps;
• a tolerance is established by a user for evaluating the commit data in the target and source repositories;
• the tolerance is a maximum number of differences between a commit data event in the historical artifacts in the target repository and a corresponding commit data event in the historical artifacts in the source repository;
• and
• each commit data event logged has a number of differences greater than the tolerance.