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print.go
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print.go
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package graphdot
import (
"fmt"
"github.com/hephbuild/heph/graph"
"github.com/hephbuild/heph/log/log"
"github.com/hephbuild/heph/utils/sets"
"strconv"
"time"
)
func Print(dag *graph.DAG, tools bool) {
fmt.Printf(`
digraph G {
fontname="Helvetica,Arial,sans-serif"
node [fontname="Helvetica,Arial,sans-serif"]
edge [fontname="Helvetica,Arial,sans-serif"]
rankdir="LR"
node [fontsize=10, shape=box, height=0.25]
edge [fontsize=10]
`)
id := func(target *graph.Target) string {
return strconv.Quote(target.Addr)
}
for _, target := range dag.GetVertices() {
extra := ""
if target.IsGroup() {
//extra = ` color="red"`
}
log.Tracef("walk %v", target.Addr)
parentsStart := time.Now()
parents, err := dag.GetParents(target)
log.Debugf("parents took %v (got %v)", time.Since(parentsStart), len(parents))
if err != nil {
panic(err)
}
fmt.Printf(" %v [label=\"%v\"%v];\n", id(target), target.Addr, extra)
skip := sets.NewStringSet(0)
if !tools {
for _, tool := range target.Tools.Targets {
skip.Add(tool.Target.Addr)
}
}
for _, ancestor := range parents {
if skip.Has(ancestor.Addr) {
continue
}
fmt.Printf(" %v -> %v;\n", id(ancestor), id(target))
}
fmt.Println()
}
fmt.Println("}")
}