https://github.com/mibk/dupl https://github.com/mibk/dupl does a great job, and it's included in https://github.com/golangci/golangci-lint https://github.com/go

https://github.com/mibk/dupl https://github.com/mibk/dupl does a great job, and it's included in https://github.com/golangci/golangci-lint https://github.com/golangci/golangci-lint (which everyone should use, tbh)