Constrain output geometry / size about pydeps HOT 2 OPEN

Hei Jacob og takk for interessen i pydeps :-)

(switching to English for archival purposes..) Pydeps uses the graphviz package's dot command to display the graph (with only minor modifications to highlight the paths when hovering over them). The --show-dot and --dot-output <filename> flags give you access to the graph in this intermediate step.

Re-ordering the input to dot will give different graphs, and there are several "knobs" you can adjust when calling dot manually, but dot is already doing a heroic effort to draw the graph so maybe do this as a last resort..?

The --cluster --collapse-target-cluster combination of flags will give you the smallest possible graph (in combination with a sensible --max-bacon value). --cluster --keep-target-cluster will draw a box around your modules. --only predalert.web will limit the graph to just that branch of your import graph, and -x predalert.web.* will prune the graph.

Displaying the full graph in reduced size with exploded views of the area you are discussing is often useful to orient the reader, and providing a link to the full graph is also often useful (do people still read paper versions of LaTeX documents?)

Hopefully this gives you some ideas..?

I'm more than happy to merge if anyone wants to create a PR for this (you'll probably need to make changes in pydeps/render_context.py).

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Takk så mye for svaret, Bjorn!
In the end I used two different dependency graphs, one with --max-bacon=2 --cluster --collapse-target-cluster --rankdir LR to show general external deps, and one with --only predalert --rmprefix predalert. --exclude-exact predalert.desktop predalert.web for internal deps :)

Will keep this issue open, since someone else might want this feature

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