Git Coupling is one of Understand's built-in reports — run it on your own code from the GUI, or headlessly with und report.
Git Coupling
Languages: AnyTargets: Files
Report coupling between files based on shared Git commits.
A file is coupled to another file through Git if they are both modified in the same commit. The coupling is measured by the number of commits the two files co-occur in divided by the number of commits for the target file. Files that frequently change together, especially without dependencies, can indicate design flaws.
To reduce the noise in the metrics, two thresholds are imposed. A pair of files is coupled only if the number of shared commits is greater than 5 and is greater than 10% of the total commits of the target file.
See also the Git Solution, the blog article ↗ describing the Git plugins, the chart Git Coupling Pie Chart, the graph Git Coupling, and the metrics Git Average Coupling, Git Max Coupling, Git Coupled Files and Git Strongly Coupled Files. Also related is the architecture metric Git Cohesion .
