Hi!

Here’s a long overdue ‘guix graph’ command (documentation below.)
Comments welcome!

Ludo’.


5.9 Invoking ‘guix graph’
=========================

Packages and their dependencies form a “graph”, specifically a directed
acyclic graph (DAG). It can quickly become difficult to have a mental
model of the package DAG, so the ‘guix graph’ command is here to provide
a visual representation of the DAG. ‘guix graph’ emits a DAG
representation in the input format of Graphviz
(http://www.graphviz.org/), so its output can be passed directly to
Graphviz’s ‘dot’ command, for instance.  The general syntax is:

     guix graph OPTIONS PACKAGE…

   For example, the following command generates a PDF file representing
the package DAG for the GNU Core Utilities, showing its build-time
dependencies:

     guix graph coreutils | dot -Tpdf > dag.pdf

   The output looks like this: