Converts 'go mod graph' output into Graphviz's DOT language

modgv

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Converts 'go mod graph' output into GraphViz's DOT language.

  • takes no options or arguments
  • it reads the output generated by “go mod graph” on stdin
  • generates a DOT language and writes to stdout

Usage:

go mod graph | modgv | dot -Tpng -o graph.png

For each module:

  • the node representing the greatest version (i.e., the version chosen by Go's MVS algorithm) is colored green
  • other nodes, which aren't in the final build list, are colored grey

Installation

go get github.com/lucasepe/modgv/modgv

Here 👉 https://graphviz.gitlab.io/download/ how to install GraphViz for your OS.

Sample output (PNG)

go mod graph | modgv | dot -Tpng -o graph.png

Sample output (PDF with clickable links to module docs)

go mod graph | modgv | dot -Tps2 -o graph.ps
ps2pdf graph.ps graph.pdf

View generated PDF

Owner
Luca Sepe
𝕋𝕖𝕔𝕙 - Golang | C | [Java]. Design multi-platform pipelines, web scrapers, data ingestion tools.
Luca Sepe
https://github.com/lucasepe/modgv
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Comments
  • graph is too large

    graph is too large

    Dear Lucasepe, trying to user your brilliant tool but getting an issue :)

    using it on nvim; is this an expected behavior? Are there flags/ arguments that we could pass to allow the graph/image to be generated elsewhere?

    go mod graph | modgv | dot -Tpng -o graph.png

    command i issued:

    response i got (it actually took too long to response so i crtl+c the process and got this:) graph is too large for cairo-renderer bitmaps. Scaling by 0.196394 to fit

  • Fix nodesep

    Fix nodesep

    Hi @lucasepe,

    I love graphviz too 😃

    I noticed the output for nodesep was mangled. Here's a quick fix.

    Tests don't seem setup, manually tested locally.

  • support highlight

    support highlight

    Support highlights the dependence path of specified modules. This is useful when doing a dependency analysis for a project which has a large mod graph.

  • Deprecation of 'go get' for installing executables

    Deprecation of 'go get' for installing executables

    Hi! Thanks for your job!

    the described installation method (installation) doesn't work in Go 1.17 or later. Reason: Deprecation of 'go get' for installing executables.

    I've tried to use go install:

    $ go install github.com/lucasepe/modgv/modgv@latest
go install: github.com/lucasepe/modgv/modgv@latest (in github.com/lucasepe/modgv/[email protected]):
	The go.mod file for the module providing named packages contains one or
	more replace directives. It must not contain directives that would cause
	it to be interpreted differently than if it were the main module.

$ go install github.com/lucasepe/modgv/[email protected]
go install: github.com/lucasepe/modgv/[email protected]: module github.com/lucasepe/[email protected] found, but does not contain package github.com/lucasepe/modgv/modgv

$ go install github.com/lucasepe/[email protected]
package github.com/lucasepe/modgv is not a main package

    FYI.

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