tig 2.4.1-1ubuntu1 (amd64 binary) in ubuntu groovy

 This package contains a text-mode interface for the version control system
 Git. It may be used to browse the history and contents of a repository.
 .
 The following main features are supported:
  - View revision logs, commit messages, diffstats, diffs, archive trees and
    file contents.
  - Visualize revision graphs.
  - Stage / unstage changes and add untracked files.
  - Merge files.
  - Cherry-pick commits.
 .
 tig may also be used as a pager. It reads input from stdin and colorizes it.