mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2025-01-07 10:12:19 +00:00
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
/**
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* Block tree graph viz
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*
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* Given a DB, start slot and end slot. This tool computes the graphviz data
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* needed to construct the block tree in graphviz data format. Then one can paste
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* the data in a Graph rendering engine (ie. http://www.webgraphviz.com/) to see the visual format.
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*/
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package main
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import (
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"context"
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"encoding/hex"
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"flag"
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"fmt"
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"strconv"
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"github.com/emicklei/dot"
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"github.com/prysmaticlabs/go-ssz"
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"github.com/prysmaticlabs/prysm/beacon-chain/db"
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"github.com/prysmaticlabs/prysm/beacon-chain/db/filters"
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"github.com/prysmaticlabs/prysm/shared/bytesutil"
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)
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var (
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// Required fields
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datadir = flag.String("datadir", "", "Path to data directory.")
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startSlot = flag.Uint("startSlot", 0, "Start slot of the block tree")
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endSlot = flag.Uint("endSlot", 0, "Start slot of the block tree")
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)
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// Used for tree, each node is a representation of a node in the graph
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type node struct {
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parentRoot [32]byte
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dothNode *dot.Node
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}
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func main() {
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flag.Parse()
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db, err := db.NewDB(*datadir)
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if err != nil {
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panic(err)
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}
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graph := dot.NewGraph(dot.Directed)
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graph.Attr("rankdir", "RL")
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graph.Attr("labeljust", "l")
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startSlot := uint64(*startSlot)
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endSlot := uint64(*endSlot)
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filter := filters.NewFilter().SetStartSlot(startSlot).SetEndSlot(endSlot)
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blks, err := db.Blocks(context.Background(), filter)
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if err != nil {
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panic(err)
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}
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// Construct nodes
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m := make(map[[32]byte]*node)
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for i := 0; i < len(blks); i++ {
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b := blks[i]
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r, err := ssz.SigningRoot(b)
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if err != nil {
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panic(err)
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}
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// Construct label of each node.
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rStr := hex.EncodeToString(r[:2])
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label := "slot: " + strconv.Itoa(int(b.Slot)) + "\n root: " + rStr
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dotN := graph.Node(rStr).Box().Attr("label", label)
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n := &node{
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parentRoot: bytesutil.ToBytes32(b.ParentRoot),
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dothNode: &dotN,
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}
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m[r] = n
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}
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// Construct an edge only if block's parent exist in the tree.
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for _, n := range m {
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if _, ok := m[n.parentRoot]; ok {
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graph.Edge(*n.dothNode, *m[n.parentRoot].dothNode)
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}
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}
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fmt.Println(graph.String())
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}
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