modgraphdot

Modgraphdot converts “go mod graph” output into Graphviz's DOT language

This is a fork of https://github.com/golang/exp/tree/master/cmd/modgraphviz

Modgraphdot converts “go mod graph” output into Graphviz's DOT language, for use with Graphviz visualization and analysis tools like dot, dotty, and sccmap.

This tools allows us to create a tree of dependencies that stop at the dependency that we are looking for, resulting in a shorter tree, if the stop string is defined]

For each module, the node representing the greatest version (i.e., the version chosen by Go's minimal version selection algorithm) is colored green. Other nodes, which aren't in the final build list, are colored grey. If -p is set, only the the green ones will apper.

Usage

go mod graph | modgraphdot > graph.dot

go mod graph | modgraphdot [-p] [stop string] | dot -Tpng -o graph.png

Example

go mod graph | modgraphdot "go-grpc@" | dot -Tsvg -o graph.svg

will show ALL the paths from the main module to all module whose name contains "go-grps@" in a svg file.

go mod graph | modgraphdot | dot -Tsvg -o graph.svg

will show the full graph

go mod graph | modgraphdot | dot -Tsvg -o graph.svg

Will show only the paths use in the build

Installation

Install graphviz

Ubuntu

sudo apt install graphviz

Mac OS

brew install graphviz

Install tool

go get -u github.com/quintans/modgraphdot