scripts: gen_handles: output dependency graph

Output the final dependency graph as a `.dot` file, which when rendered
by graphviz can be easier to comprehend than the text descriptions.

This output is optional in that it will not be generated if `graphviz`
is not installed.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2022-07-10 13:46:17 +10:00 committed by Kumar Gala
commit 29942475c5
4 changed files with 37 additions and 0 deletions

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@ -26,3 +26,6 @@ grpcio-tools
# used by scripts/release/bug_bash.py for generating top ten bug squashers
PyGithub
# used to generate devicetree dependency graphs
graphviz