Pacvis

is Article description::a tool to interactively display dependency graphs of the portage tree using a web interface. It can show graphs of the installed packages as well a previews of emerges.

Emerge
is available in the GURU overlay which can be added through either Layman or Eselect/Repository. GURU is an official Gentoo overlay that is maintained by Gentoo users. Assuming is set up, the GURU overlay can be added by:

Then can be emerged:

Usage
uses and vis.js to display portage depedency graphs. The graphs are based on the portage depclean tree or the tree resulting from an emerge -p command.

Invocation
To show a dependency graph of all installed packages run the command below and open a web browser to the indicated address.

can take command line arguments to show a preview of what an emerge command would do. The command below will show a graph of all the packages that would be added or updated as a result of the equivalent emerge. In addition, it will show all packages that depend on the updated package.

To see what a complete system reinstall would look like, run: