Method IsAncestor

repository/git.go:301–310

IsAncestor determines if the first argument points to a commit that is an ancestor of the second.

(ancestor, descendant string)

// IsAncestor determines if the first argument points to a commit that is an ancestor of the second.
func (repo *GitRepo) IsAncestor(ancestor, descendant string) (bool, error) {
	_, _, err := repo.runGitCommandRaw("merge-base", "--is-ancestor", ancestor, descendant)
	if err == nil {
		return true, nil
	}
	if _, ok := err.(*exec.ExitError); ok {
		return false, nil
	}
	return false, fmt.Errorf("Error while trying to determine commit ancestry: %v", err)
}

// Diff computes the diff between two given commits.
func (repo *GitRepo) Diff(left, right string, diffArgs ...string) (string, error) {