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A Go dependency graph visualization tool

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godepgraph

godepgraph is a program for generating a dependency graph of Go packages.

Build Status

Install

go get github.com/kisielk/godepgraph

Use

For basic usage, just give the package path of interest as the first argument:

godepgraph github.com/kisielk/godepgraph

The output is a graph in Graphviz dot format. If you have the graphviz tools installed you can render it by piping the output to dot:

godepgraph github.com/kisielk/godepgraph | dot -Tpng -o godepgraph.png

By default godepgraph will display packages in the standard library in the graph, though it will not delve in to their dependencies.

Colors

godepgraph uses a simple color scheme to denote different types of packages:

  • green: a package that is part of the Go standard library, installed in $GOROOT.
  • blue: a regular Go package found in $GOPATH.
  • yellow: a vendored Go package found in $GOPATH.
  • orange: a package found in $GOPATH that uses cgo by importing the special package "C".

Ignoring Imports

The Go Standard Library

If you want to ignore standard library packages entirely, use the -s flag:

godepgraph -s github.com/kisielk/godepgraph

Vendored Libraries

If you want to ignore vendored packages entirely, use the -novendor flag:

godepgraph -novendor github.com/something/else

By Name

Import paths can be ignored in a comma-separated list passed to the -i flag:

godepgraph -i github.com/foo/bar,github.com/baz/blah github.com/something/else

The packages and their imports will be excluded from the graph, unless the imports are also imported by another package which is not excluded.

By Prefix

Import paths can also be ignored by prefix. The -p flag takes a comma-separated list of prefixes:

godepgraph -p github.com,launchpad.net bitbucket.org/foo/bar

Example

Here's some example output for a component of Gary Burd's gopkgdoc project:

Example output

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A Go dependency graph visualization tool

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