Generates a visual dependency graph
$ bundle viz [--file=FILE] [--format=FORMAT] [--requirements] [--version] [--without=GROUP GROUP]
--file or -f: The name to use for the generated file. see format option
--format or -F: This is output format option. Supported format is png, jpg, svg, dot …
--requirements or -r: Set to show the version of each required dependency.
--version or -v: Set to show each gem version.
--without: Exclude gems that are part of the specified named group.
Viz generates a PNG file of the current Gemfile as a dependency graph. Viz requires the ruby-graphviz gem (and its dependencies). The associated gems must also be installed via ‘bundle install’.