private ValidationResult ValidateRepository(string fromCommit, string toCommit) { if (!_repositoryReader.ToolExists()) { return(ValidationResult.Fail("No git executable could be found")); } if (!_repositoryReader.RepositoryExists()) { return(ValidationResult.Fail($"No repository could be found at: {_repositoryReader.WorkingDirectory}")); } if (!_repositoryReader.CommitExists(fromCommit)) { return(ValidationResult.Fail($"No commit could be found: {fromCommit}")); } if (!_repositoryReader.CommitExists(toCommit)) { return(ValidationResult.Fail($"No commit could be found: {toCommit}")); } if (!_repositoryReader.CommitIsAncestor(toCommit, fromCommit)) { return(ValidationResult.Fail($"The commit {fromCommit} is not an ancestor of {toCommit}")); } return(ValidationResult.Pass); }