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Revert "Using go-graphviz to generate not just the .dot but also a pn…
…g file." This reverts commit a155405.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,93 +1,68 @@ | ||
| package clab | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "strings" | ||
|
|
||
| "github.com/goccy/go-graphviz" | ||
| "github.com/goccy/go-graphviz/cgraph" | ||
| "github.com/awalterschulze/gographviz" | ||
| log "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
||
| var g *gographviz.Graph | ||
|
|
||
| // GenerateGraph generates a graph for the lab topology | ||
| func (c *cLab) GenerateGraph(topo string) error { | ||
| h := graphviz.New() | ||
| graph, err := h.Graph() | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| log.Info("Generating lab graph ...") | ||
| g = gographviz.NewGraph() | ||
| if err := g.SetName(c.FileInfo.shortname); err != nil { | ||
| return err | ||
| } | ||
| if err := g.SetDir(false); err != nil { | ||
| return err | ||
| } | ||
| defer func() { | ||
| if err := graph.Close(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| h.Close() | ||
| }() | ||
|
|
||
| graph.Attr(1, "style", "filled") // kind 1 == node defaults | ||
| graph.Attr(1, "fillcolor", "red") // kind 1 == node defaults | ||
|
|
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| var graphNodeMap = make(map[string]*cgraph.Node) | ||
| var attr map[string]string | ||
| attr = make(map[string]string) | ||
| attr["color"] = "red" | ||
| attr["style"] = "filled" | ||
| attr["fillcolor"] = "red" | ||
|
|
||
| // Create Nodes | ||
| for nodeName, node := range c.Nodes { | ||
| n, err := graph.CreateNode(nodeName) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| n.SetLabel(nodeName) | ||
| n.SetXLabel(node.Kind) | ||
| n.SetGroup(node.Group) | ||
| attr["label"] = nodeName | ||
| attr["xlabel"] = node.Kind | ||
| attr["group"] = node.Group | ||
|
|
||
| if strings.Contains(node.Kind, "srl") { | ||
| n.SetFillColor("green") | ||
| attr["fillcolor"] = "green" | ||
| } | ||
| if strings.Contains(node.Group, "bb") { | ||
| n.SetFillColor("blue") | ||
| n.SetFontColor("white") | ||
| attr["fillcolor"] = "blue" | ||
| } | ||
| if err := g.AddNode(c.FileInfo.shortname, node.ShortName, attr); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| graphNodeMap[nodeName] = n | ||
| } | ||
|
|
||
| // Create Edges between the Nodes | ||
| graph.Attr(2, "fillcolor", "green") // kind 2 == edge defaults | ||
| graph.Attr(2, "arrowhead", "none") // kind 2 == edge defaults | ||
| graph.Attr(2, "arrowtail", "none") // kind 2 == edge defaults | ||
| attr = make(map[string]string) | ||
| attr["color"] = "green" | ||
|
|
||
| for _, link := range c.Links { | ||
| aEnd, ok := graphNodeMap[link.A.Node.ShortName] | ||
| if !ok { | ||
| log.Fatal("Node ", link.A.EndpointName, " does not exist!") | ||
| } | ||
| bEnd, ok := graphNodeMap[link.B.Node.ShortName] | ||
| if !ok { | ||
| log.Fatal("Node ", link.B.EndpointName, " does not exist!") | ||
| if strings.Contains(link.B.Node.ShortName, "client") { | ||
| attr["color"] = "blue" | ||
| } | ||
| e, err := graph.CreateEdge("", aEnd, bEnd) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| if err := g.AddEdge(link.A.Node.ShortName, link.B.Node.ShortName, false, attr); err != nil { | ||
| return err | ||
| } | ||
| _ = e | ||
| // Print node and interface name in edge label | ||
| //e.SetLabel(link.A.Node.ShortName + " " + link.A.EndpointName + "\n" + link.B.Node.ShortName + " " + link.B.EndpointName) | ||
|
|
||
| } | ||
|
|
||
| // create graph directory | ||
| CreateDirectory(c.Dir.Lab, 0755) | ||
| CreateDirectory(c.Dir.LabGraph, 0755) | ||
|
|
||
| // write .dot file | ||
| var buf bytes.Buffer | ||
| if err := h.Render(graph, "dot", &buf); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| //fmt.Println(buf.String()) | ||
| dotFile := c.Dir.LabGraph + "/" + c.FileInfo.name + ".dot" | ||
| createFile(dotFile, buf.String()) | ||
| // create graph filename | ||
| file := c.Dir.LabGraph + "/" + c.FileInfo.name + ".dot" | ||
|
|
||
| createFile(file, g.String()) | ||
|
|
||
| pngFile := c.Dir.LabGraph + "/" + c.FileInfo.name + ".png" | ||
| if err := h.RenderFilename(graph, graphviz.PNG, pngFile); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| log.Info("Done") | ||
| return nil | ||
| } |
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