Refactoring: Shorten print_project_pipeline(). (#638)
Refactoring: Shorten print_project_pipeline(). (#638)

This commit moves all functionality related to validating configuration
changes into a separate function.
bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration