66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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"hash/crc32"
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"strconv"
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"github.com/ipfs/go-cid"
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"gopkg.in/urfave/cli.v2"
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)
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var dotCmd = &cli.Command{
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Name: "dot",
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Usage: "generate dot graphs",
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ArgsUsage: "<minHeight> <toseeHeight>",
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Action: func(cctx *cli.Context) error {
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st, err := openStorage(cctx.String("db"))
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if err != nil {
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return err
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}
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minH, err := strconv.ParseInt(cctx.Args().Get(0), 10, 32)
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tosee, err := strconv.ParseInt(cctx.Args().Get(1), 10, 32)
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maxH := minH + tosee
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res, err := st.db.Query("select block, parent, b.miner, b.height from block_parents inner join blocks b on block_parents.block = b.cid where b.height > ? and b.height < ?", minH, maxH)
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if err != nil {
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return err
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}
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fmt.Println("digraph D {")
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for res.Next() {
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var block, parent, miner string
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var height uint64
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if err := res.Scan(&block, &parent, &miner, &height); err != nil {
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return err
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}
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bc, err := cid.Parse(block)
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if err != nil {
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return err
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}
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has := st.hasBlock(bc)
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col := crc32.Checksum([]byte(miner), crc32.MakeTable(crc32.Castagnoli))&0xc0c0c0c0 + 0x30303030
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hasstr := ""
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if !has {
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col = 0xffffffff
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hasstr = " UNSYNCED"
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}
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fmt.Printf("%s [label = \"%s:%d%s\", fillcolor = \"#%06x\", style=filled, forcelabels=true]\n%s -> %s\n", block, miner, height, hasstr, col, block, parent)
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}
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if res.Err() != nil {
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return res.Err()
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}
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fmt.Println("}")
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return nil
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},
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}
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