Graphviz for Lua

local Graphviz = require("graphviz")

local graph = Graphviz()

luarocks install graphviz or git clone https://github.com/nymphium/lua-graphviz && cd lua-graphviz && luarocks make

add a node

add a edges

args[1] -> args[2]
args[1] -> args[3]
...
args[1] -> args[n]

return graph as string

digraph {
	graph []
	node []
	edge []
		a [label="hoge"]
		b [label="huga"]
			a -> b
}

write dot file to (filename)

write dot file to (filename) and compile the file (dot -T format filename generated_filename)

write dot file to (filename), compile the dot file as format, and open the generated file

it only calls graph:write(filename), graph:compile(filename, format, generated_file) and io.pcall(()"xdg-open %s &"):format(generated_filename))

graph:render("file", "pdf")

update each style

graph.nodes.style:update{
	fontname = "Inconsolata Regular",
	shape = "rectangle"
}

MIT