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main.go
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// Copyright 2023 Blink Labs Software
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"encoding/json"
"flag"
"fmt"
"net"
"os"
"strconv"
"strings"
"time"
"github.com/blinklabs-io/nview/internal/config"
"github.com/blinklabs-io/nview/internal/version"
"github.com/gdamore/tcell/v2"
"github.com/mikioh/tcp"
"github.com/mikioh/tcpinfo"
"github.com/rivo/tview"
netutil "github.com/shirou/gopsutil/v3/net"
"github.com/shirou/gopsutil/v3/process"
terminal "golang.org/x/term"
)
// Global command line flags
var cmdlineFlags struct {
configFile string
}
// Global tview application and pages
var (
app = tview.NewApplication()
pages = tview.NewPages()
)
// Main viewport - flexible box
var flex = tview.NewFlex()
// Our text views
var blockTextView = tview.NewTextView().
SetDynamicColors(true)
var chainTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen).
SetChangedFunc(func() {
// Redraw the screen on a change
app.Draw()
})
var connectionTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen).
SetChangedFunc(func() {
app.Draw()
})
var coreTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen).
SetChangedFunc(func() {
app.Draw()
})
var footerTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen)
var headerTextView = tview.NewTextView().
SetTextColor(tcell.ColorGreen)
var nodeTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen).
SetChangedFunc(func() {
app.Draw()
})
var peerTextView = tview.NewTextView().
SetDynamicColors(true).
SetChangedFunc(func() {
app.Draw()
})
var resourceTextView = tview.NewTextView().
SetDynamicColors(true).
SetTextColor(tcell.ColorGreen).
SetChangedFunc(func() {
app.Draw()
})
// Text strings
var blockText, chainText, coreText, connectionText, nodeText, peerText, resourceText string
// Metrics variables
var processMetrics *process.Process
// Track our failures
var failCount uint32 = 0
func main() {
// Check if any command line flags are given
flag.StringVar(
&cmdlineFlags.configFile,
"config",
"",
"path to config file to load",
)
flag.Parse()
// Load config
cfg, err := config.LoadConfig(cmdlineFlags.configFile)
if err != nil {
fmt.Printf("Failed to load config: %s", err)
os.Exit(1)
}
// Create a background context
ctx := context.Background()
// Exit if NODE_NAME is > 19 characters
if len([]rune(cfg.App.NodeName)) > 19 {
fmt.Println(
"Please keep node name at or below 19 characters in length!",
)
os.Exit(1)
}
// Determine if we're P2P
p2p = getP2P(ctx, processMetrics)
// Set role
setRole()
// Get public IP
ip, err := getPublicIP(ctx)
if err == nil {
publicIP = &ip
}
checkPeers = true
// Fetch data from Prometheus
go func() {
for {
prom, err := getPromMetrics(ctx)
if err != nil && prom != nil {
failCount++
time.Sleep(time.Second * time.Duration(cfg.Prometheus.Refresh))
continue
}
promMetrics = prom
time.Sleep(time.Second * time.Duration(cfg.Prometheus.Refresh))
}
}()
// Set Epoch
go func() {
for {
setCurrentEpoch()
if currentEpoch != 0 {
time.Sleep(time.Second * 20)
}
}
}()
// Update Process metrics
go func() {
for {
proc, err := getProcessMetrics(ctx)
if err != nil {
failCount++
time.Sleep(time.Second * 1)
continue
}
processMetrics = proc
time.Sleep(time.Second * 1)
}
}()
// Set uptimes
go func() {
for {
uptime := getUptimes(ctx, processMetrics)
if uptime != 0 {
uptimes = uptime
}
time.Sleep(time.Second * 1)
}
}()
// Filter peers
go func() {
for {
err := filterPeers(ctx)
if err != nil {
failCount++
time.Sleep(time.Second * 1)
continue
}
time.Sleep(time.Second * 1)
}
}()
// Ping peers
go func() {
for {
err := pingPeers(ctx)
if err != nil {
failCount++
time.Sleep(time.Second * 10)
continue
}
time.Sleep(time.Second * 10)
}
}()
// Populate initial text from metrics
nodeText = getNodeText(ctx)
nodeTextView.SetText(nodeText).SetTitle("Node").SetBorder(true)
resourceText = getResourceText(ctx)
resourceTextView.SetText(resourceText).SetTitle("Resources").SetBorder(true)
connectionText = getConnectionText(ctx)
connectionTextView.SetText(connectionText).
SetTitle("Connections").
SetBorder(true)
coreText = getCoreText(ctx)
coreTextView.SetText(coreText).SetTitle("Core").SetBorder(true)
chainText = fmt.Sprintf("%s%s", getEpochText(ctx), getChainText(ctx))
chainTextView.SetText(chainText).SetTitle("Chain").SetBorder(true)
blockText = getBlockText(ctx)
blockTextView.SetText(blockText).
SetTitle("Block Propagation").
SetBorder(true)
peerText = getPeerText(ctx)
peerTextView.SetText(peerText).SetTitle("Peers").SetBorder(true)
// Set our footer
defaultFooterText := " [yellow](esc/q)[white] Quit | [yellow](p)[white] Peer Analysis"
footerTextView.SetText(defaultFooterText)
// Add content to our flex box
layout := tview.NewFlex()
leftSide := tview.NewFlex()
middleSide := tview.NewFlex()
flex.SetDirection(tview.FlexRow).
// Row 1 is our application header
AddItem(headerTextView.SetText(fmt.Sprintln(" > nview -", version.GetVersionString())),
1,
1,
false).
// Row 2 is our main text section, and its own flex
AddItem(layout.
AddItem(leftSide.SetDirection(tview.FlexRow).
// Node
AddItem(nodeTextView,
8,
0,
false).
// Resources
AddItem(resourceTextView,
8,
0,
false).
// Connections
AddItem(connectionTextView,
11,
0,
false),
37,
1,
false).
AddItem(middleSide.SetDirection(tview.FlexRow).
// Chain
AddItem(chainTextView,
8,
1,
false).
// Block
AddItem(blockTextView,
4,
0,
false).
// Peers
AddItem(peerTextView,
0,
3,
true),
74,
2,
true),
0,
6,
true).
// Row 3 is our footer
AddItem(footerTextView, 2, 0, false)
// Core
if role == "Core" {
leftSide.AddItem(coreTextView, 0, 1, false)
} else {
leftSide.AddItem(nil, 0, 1, false)
}
// TODO: another section + data
// layout.AddItem(tview.NewBox().SetBorder(true).SetTitle("Coming Soon"), 22, 1, false)
peerStats.RTTresultsMap = make(map[string]*Peer)
peerStats.RTTresultsSlice = []*Peer{}
// capture inputs
flex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if event.Rune() == 104 || event.Rune() == 114 { // h or r
setRole()
resetPeers()
checkPeers = true
footerTextView.Clear()
footerTextView.SetText(defaultFooterText)
var tmpText string
tmpText = getNodeText(ctx)
if tmpText != "" && tmpText != nodeText {
nodeText = tmpText
nodeTextView.Clear()
nodeTextView.SetText(nodeText)
}
tmpText = getResourceText(ctx)
if tmpText != "" && tmpText != resourceText {
resourceText = tmpText
resourceTextView.Clear()
resourceTextView.SetText(resourceText)
}
tmpText = getConnectionText(ctx)
if tmpText != "" && tmpText != connectionText {
connectionText = tmpText
connectionTextView.Clear()
connectionTextView.SetText(connectionText)
}
tmpText = getCoreText(ctx)
if tmpText != "" && tmpText != coreText {
coreText = tmpText
coreTextView.Clear()
coreTextView.SetText(coreText)
}
tmpText = fmt.Sprintf(
"%s\n%s",
getEpochText(ctx),
getChainText(ctx),
)
if tmpText != "" && tmpText != chainText {
chainText = tmpText
chainTextView.Clear()
chainTextView.SetText(chainText)
}
tmpText = getBlockText(ctx)
if tmpText != "" && tmpText != blockText {
blockText = tmpText
blockTextView.Clear()
blockTextView.SetText(blockText)
}
// Peers are last since they take time to process
tmpText = getPeerText(ctx)
if tmpText != "" && tmpText != peerText {
peerText = tmpText
peerTextView.Clear()
peerTextView.SetText(peerText)
// Scroll to the top only once
if scrollPeers {
scrollPeers = false
peerTextView.ScrollToBeginning()
}
}
}
if event.Rune() == 112 { // p
resetPeers()
checkPeers = true
scrollPeers = false
}
if event.Rune() == 113 || event.Key() == tcell.KeyEscape { // q
app.Stop()
}
return event
})
// Pages
pages.AddPage("Main", flex, true, true)
// Start our background refresh timer
go func() {
for {
if failCount >= cfg.App.Retries {
panic(
fmt.Errorf(
"COULD NOT CONNECT TO A RUNNING INSTANCE, %d FAILED ATTEMPTS IN A ROW",
failCount,
),
)
}
// Refresh all the things
setRole()
var tmpText string
tmpText = getNodeText(ctx)
if tmpText != "" && tmpText != nodeText {
nodeText = tmpText
nodeTextView.Clear()
nodeTextView.SetText(nodeText)
}
tmpText = getResourceText(ctx)
if tmpText != "" && tmpText != resourceText {
resourceText = tmpText
resourceTextView.Clear()
resourceTextView.SetText(resourceText)
}
tmpText = getConnectionText(ctx)
if tmpText != "" && tmpText != connectionText {
connectionText = tmpText
connectionTextView.Clear()
connectionTextView.SetText(connectionText)
}
tmpText = getCoreText(ctx)
if tmpText != "" && tmpText != coreText {
coreText = tmpText
coreTextView.Clear()
coreTextView.SetText(coreText)
}
tmpText = fmt.Sprintf(
"%s\n%s",
getEpochText(ctx),
getChainText(ctx),
)
if tmpText != "" && tmpText != chainText {
chainText = tmpText
chainTextView.Clear()
chainTextView.SetText(chainText)
}
tmpText = getBlockText(ctx)
if tmpText != "" && tmpText != blockText {
blockText = tmpText
blockTextView.Clear()
blockTextView.SetText(blockText)
}
tmpText = getPeerText(ctx)
if tmpText != "" && tmpText != peerText {
peerText = tmpText
peerTextView.Clear()
peerTextView.SetText(peerText)
// Scroll to the top only once
if scrollPeers {
scrollPeers = false
peerTextView.ScrollToBeginning()
}
}
time.Sleep(time.Second * time.Duration(cfg.App.Refresh))
}
}()
if err := app.SetRoot(pages, true).EnableMouse(false).Run(); err != nil {
panic(err)
}
}
var uptimes uint64
func getUptimes(ctx context.Context, processMetrics *process.Process) uint64 {
if processMetrics == nil {
return uptimes
}
// Calculate uptime
createTime, err := processMetrics.CreateTimeWithContext(ctx)
if err != nil {
return uptimes
}
// createTime is milliseconds since UNIX epoch, convert to seconds
// #nosec G115
uptimes = uint64(time.Now().Unix() - (createTime / 1000))
return uptimes
}
// Track size of epoch items
var epochItemsLast = 0
func getEpochProgress() float32 {
cfg := config.GetConfig()
if cfg.Node.ShelleyTransEpoch < 0 {
return float32(0.0)
}
var epochProgress float32
if promMetrics == nil {
epochProgress = float32(0.0)
// #nosec G115
} else if promMetrics.EpochNum >= uint64(cfg.Node.ShelleyTransEpoch) {
epochProgress = float32(
(float32(promMetrics.SlotInEpoch) / float32(cfg.Node.ShelleyGenesis.EpochLength)) * 100,
)
} else {
epochProgress = float32(
(float32(promMetrics.SlotInEpoch) / float32(cfg.Node.ByronGenesis.EpochLength)) * 100,
)
}
return epochProgress
}
func getEpochText(ctx context.Context) string {
var sb strings.Builder
epochProgress := getEpochProgress()
epochProgress1dec := fmt.Sprintf("%.1f", epochProgress)
sb.WriteString(
fmt.Sprintf(
// `" Epoch [blue]%d[white] [[blue]%s%%[white]], [blue]%s[white] %-12s\n",
" [green]Epoch: [white]%d[blue] [[white]%s%%[blue]]\n",
currentEpoch,
epochProgress1dec,
// epochTimeLeft,
// "remaining",
),
)
// Epoch progress bar
var epochBar string
granularity := 68
var charMarked string
var charUnmarked string
// TODO: legacy mode vs new
if false {
charMarked = string('#')
charUnmarked = string('.')
} else {
charMarked = string('▌')
charUnmarked = string('▖')
}
epochItems := int(epochProgress) * granularity / 100
if epochBar == "" || epochItems != epochItemsLast {
epochBar = ""
epochItemsLast = epochItems
for i := 0; i <= granularity-1; i++ {
if i < epochItems {
epochBar += "[blue]" + charMarked
} else {
epochBar += "[white]" + charUnmarked
}
}
}
sb.WriteString(fmt.Sprintf(" [blue]%s[green]\n", epochBar))
return sb.String()
}
func getChainText(ctx context.Context) string {
if promMetrics == nil {
return chainText
}
var sb strings.Builder
// Blocks / Slots / Tx
mempoolTxKBytes := promMetrics.MempoolBytes / 1024
kWidth := strconv.Itoa(10 -
len(strconv.FormatUint(promMetrics.MempoolTx, 10)) -
len(strconv.FormatUint(mempoolTxKBytes, 10)))
tipRef := getSlotTipRef()
tipDiff := (tipRef - promMetrics.SlotNum)
// Row 1
sb.WriteString(fmt.Sprintf(
" Block : [white]%-"+strconv.Itoa(10)+"s[green]",
strconv.FormatUint(promMetrics.BlockNum, 10),
))
sb.WriteString(fmt.Sprintf(
" Tip (ref) : [white]%-"+strconv.Itoa(10)+"s[green]",
strconv.FormatUint(tipRef, 10),
))
sb.WriteString(fmt.Sprintf(
" Forks : [white]%-"+strconv.Itoa(10)+"s[green]\n",
strconv.FormatUint(promMetrics.Forks, 10),
))
// Row 2
sb.WriteString(fmt.Sprintf(
" Slot : [white]%-"+strconv.Itoa(10)+"s[green]",
strconv.FormatUint(promMetrics.SlotNum, 10),
))
if promMetrics.SlotNum == 0 {
sb.WriteString(fmt.Sprintf(
" Status : [white]%-"+strconv.Itoa(
10,
)+"s[green]",
"starting",
))
} else if tipDiff <= 20 {
sb.WriteString(fmt.Sprintf(
" Tip (diff) : [white]%-"+strconv.Itoa(9)+"s[green]",
strconv.FormatUint(tipDiff, 10)+" 😀",
))
} else if tipDiff <= 600 {
sb.WriteString(fmt.Sprintf(
" Tip (diff) : [yellow]%-"+strconv.Itoa(9)+"s[green]",
strconv.FormatUint(tipDiff, 10)+" 😐",
))
} else {
syncProgress := float32((float32(promMetrics.SlotNum) / float32(tipRef)) * 100)
sb.WriteString(fmt.Sprintf(
" Syncing : [yellow]%-"+strconv.Itoa(10)+"s[green]",
fmt.Sprintf("%2.1f", syncProgress),
))
}
sb.WriteString(fmt.Sprintf(
" Total Tx : [white]%-"+strconv.Itoa(10)+"s[green]\n",
strconv.FormatUint(promMetrics.TxProcessed, 10),
))
// Row 3
sb.WriteString(fmt.Sprintf(
" Slot epoch : [white]%-"+strconv.Itoa(10)+"s[green]",
strconv.FormatUint(promMetrics.SlotInEpoch, 10),
))
sb.WriteString(fmt.Sprintf(
" Density : [white]%-"+strconv.Itoa(10)+"s[green]",
fmt.Sprintf("%3.5f", promMetrics.Density*100/1),
))
sb.WriteString(fmt.Sprintf(
" Pending Tx : [white]%d[blue]/[white]%d[blue]%-"+kWidth+"s\n",
promMetrics.MempoolTx,
mempoolTxKBytes,
"K",
))
return sb.String()
}
func getConnectionText(ctx context.Context) string {
cfg := config.GetConfig()
var sb strings.Builder
if p2p {
if promMetrics == nil {
return connectionText
}
sb.WriteString(fmt.Sprintf(" [green]P2P : %s\n",
"enabled",
))
sb.WriteString(fmt.Sprintf(" [green]Incoming : [white]%s\n",
strconv.FormatUint(promMetrics.ConnIncoming, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Outgoing : [white]%s\n",
strconv.FormatUint(promMetrics.ConnOutgoing, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Cold Peers : [white]%s\n",
strconv.FormatUint(promMetrics.PeersCold, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Warm Peers : [white]%s\n",
strconv.FormatUint(promMetrics.PeersWarm, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Hot Peers : [white]%s\n",
strconv.FormatUint(promMetrics.PeersHot, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Uni-Dir : [white]%s\n",
strconv.FormatUint(promMetrics.ConnUniDir, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Bi-Dir : [white]%s\n",
strconv.FormatUint(promMetrics.ConnBiDir, 10),
))
sb.WriteString(fmt.Sprintf(" [green]Duplex : [white]%s\n",
strconv.FormatUint(promMetrics.ConnDuplex, 10),
))
} else {
if processMetrics == nil {
return connectionText
}
// Get process in/out connections
connections, err := netutil.ConnectionsPidWithContext(ctx, "tcp", processMetrics.Pid)
if err != nil {
sb.WriteString(fmt.Sprintf("Failed to get processes: %v", err))
}
var peersIn []string
var peersOut []string
// Loops each connection, looking for ESTABLISHED
for _, c := range connections {
if c.Status == "ESTABLISHED" {
// If local port == node port, it's incoming
if c.Laddr.Port == cfg.Node.Port {
peersIn = append(peersIn, fmt.Sprintf("%s:%d", c.Raddr.IP, c.Raddr.Port))
}
// If local port != node port, ekg port, or prometheus port, it's outgoing
if c.Laddr.Port != cfg.Node.Port && c.Laddr.Port != uint32(12788) && c.Laddr.Port != cfg.Prometheus.Port {
peersOut = append(peersOut, fmt.Sprintf("%s:%d", c.Raddr.IP, c.Raddr.Port))
}
}
}
sb.WriteString(fmt.Sprintf(" [green]P2P : [yellow]%s\n",
"disabled",
))
sb.WriteString(fmt.Sprintf(" [green]Incoming : [white]%s\n",
strconv.Itoa(len(peersIn)),
))
sb.WriteString(fmt.Sprintf(" [green]Outgoing : [white]%s\n",
strconv.Itoa(len(peersOut)),
))
}
return sb.String()
}
func getCoreText(ctx context.Context) string {
if promMetrics == nil {
return coreText
}
var sb strings.Builder
// Core section
if role == "Core" {
// TODO: block log functionality
adoptedFmt := "white"
invalidFmt := "white"
if promMetrics.IsLeader != promMetrics.Adopted {
adoptedFmt = "yellow"
}
if promMetrics.DidntAdopt != 0 {
invalidFmt = "red"
}
leader := strconv.FormatUint(promMetrics.IsLeader, 10)
sb.WriteString(fmt.Sprintf(" [green]Leader : [white]%s\n",
leader,
))
adopted := strconv.FormatUint(promMetrics.Adopted, 10)
sb.WriteString(fmt.Sprintf(" [green]Adopted : ["+adoptedFmt+"]%s\n",
adopted,
))
invalid := strconv.FormatUint(promMetrics.DidntAdopt, 10)
sb.WriteString(fmt.Sprintf(" [green]Invalid : ["+invalidFmt+"]%s\n",
invalid,
))
sb.WriteString(" [green]Missed : ")
var missedSlotsPct float32
if promMetrics.AboutToLead > 0 {
missedSlotsPct = float32(
promMetrics.MissedSlots,
) / (float32(promMetrics.AboutToLead + promMetrics.MissedSlots)) * 100
}
sb.WriteString(fmt.Sprintf("[white]%s [blue]([white]%s %%[blue])\n",
strconv.FormatUint(promMetrics.MissedSlots, 10),
fmt.Sprintf("%.2f", missedSlotsPct),
))
sb.WriteString("\n")
// KES
sb.WriteString(fmt.Sprintf(" [green]KES period : [white]%d\n",
promMetrics.KesPeriod,
))
sb.WriteString(fmt.Sprintf(" [green]KES remain : [white]%d\n",
promMetrics.RemainingKesPeriods,
))
} else {
sb.WriteString(fmt.Sprintf("%18s\n",
"N/A",
))
}
failCount = 0
return sb.String()
}
func getBlockText(ctx context.Context) string {
if promMetrics == nil {
return blockText
}
// Style / UI
width := 71
// Get our terminal size
tcols, tlines, err := terminal.GetSize(int(os.Stdout.Fd()))
if err != nil {
failCount++
return fmt.Sprintf("ERROR: %v", err)
}
// Validate size
if width >= tcols {
footerTextView.Clear()
footerTextView.SetText(" [yellow](esc/q) Quit\n")
return fmt.Sprintf(
"\n [red]Terminal width too small![white]\n Please increase by [yellow]%d[white] columns\n",
width-tcols+1,
)
}
// TODO: populate lines
line := 10
if line >= (tlines - 1) {
footerTextView.Clear()
footerTextView.SetText(" [yellow](esc/q) Quit\n")
return fmt.Sprintf(
"\n [red]Terminal height too small![white]\n Please increase by [yellow]%d[white] lines\n",
line-tlines+2,
)
}
var sb strings.Builder
blk1s := fmt.Sprintf("%.2f", promMetrics.BlocksW1s*100)
blk3s := fmt.Sprintf("%.2f", promMetrics.BlocksW3s*100)
blk5s := fmt.Sprintf("%.2f", promMetrics.BlocksW5s*100)
delay := fmt.Sprintf("%.2f", promMetrics.BlockDelay)
// Row 1
sb.WriteString(
fmt.Sprintf(
" [green]Last Delay : [white]%s[blue]%-"+strconv.Itoa(
10-len(delay),
)+"s",
delay,
"s",
),
)
sb.WriteString(
fmt.Sprintf(" [green]Served : [white]%-"+strconv.Itoa(10)+"s",
strconv.FormatUint(promMetrics.BlocksServed, 10),
),
)
sb.WriteString(
fmt.Sprintf(" [green]Late (>5s) : [white]%-"+strconv.Itoa(10)+"s\n",
strconv.FormatUint(promMetrics.BlocksLate, 10),
),
)
// Row 2
sb.WriteString(
fmt.Sprintf(
" [green]Within 1s : [white]%s%-"+strconv.Itoa(10-len(blk1s))+"s",
blk1s,
"%",
),
)
sb.WriteString(
fmt.Sprintf(
" [green]Within 3s : [white]%s%-"+strconv.Itoa(10-len(blk3s))+"s",
blk3s,
"%",
),
)
sb.WriteString(
fmt.Sprintf(
" [green]Within 5s : [white]%s%-"+strconv.Itoa(
10-len(blk5s),
)+"s\n",
blk5s,
"%",
),
)
failCount = 0
return sb.String()
}
func getNodeText(ctx context.Context) string {
cfg := config.GetConfig()
var network string
if cfg.App.Network != "" {
network = strings.ToUpper(cfg.App.Network[:1]) + cfg.App.Network[1:]
} else {
network = strings.ToUpper(cfg.Node.Network[:1]) + cfg.Node.Network[1:]
}
nodeVersion, nodeRevision, _ := getNodeVersion()
var sb strings.Builder
sb.WriteString(
fmt.Sprintf(" [green]Name : [white]%s\n", cfg.App.NodeName),
)
sb.WriteString(fmt.Sprintf(" [green]Role : [white]%s\n", role))
sb.WriteString(fmt.Sprintf(" [green]Network : [white]%s\n", network))
sb.WriteString(fmt.Sprintf(
" [green]Version : [white]%s\n",
fmt.Sprintf(
"[white]%s[blue] [[white]%s[blue]]",
nodeVersion,
nodeRevision,
),
))
if publicIP != nil {
sb.WriteString(
fmt.Sprintf(" [green]Public IP : [white]%s\n", publicIP),
)
} else {
sb.WriteString(fmt.Sprintln())
}
sb.WriteString(fmt.Sprintf(" [green]Uptime : [white]%s\n",
timeFromSeconds(uptimes),
))
return sb.String()
}
func getPeerText(ctx context.Context) string {
if processMetrics == nil {
return peerText
}
var sb strings.Builder
// Style / UI
width := 71
var charMarked string
var charUnmarked string
// TODO: legacy mode vs new
if false {
charMarked = string('#')
charUnmarked = string('.')
} else {
charMarked = string('▌')
charUnmarked = string('▖')
}
granularity := 68
granularitySmall := granularity / 2
if checkPeers {
peerCount := len(peersFiltered)
sb.WriteString(
fmt.Sprintf(" [yellow]%s [blue]%d[white]/[green]%d[white]\n",
"Peer analysis started... please wait!",
len(peerStats.RTTresultsSlice),
peerCount,
),
)
scrollPeers = false
return sb.String()
}
peerCount := len(peersFiltered)
sb.WriteString(" [green]RTT : Peers / Percent\n")
sb.WriteString(fmt.Sprintf(
" [green]0-50ms : [white]%5s %.f%%",
strconv.Itoa(peerStats.CNT1),
peerStats.PCT1,
))
sb.WriteString(fmt.Sprintf(
"%"+strconv.Itoa(10-len(fmt.Sprintf("%.f", peerStats.PCT1)))+"s",
" ",
))
for i := 0; i < granularitySmall; i++ {
if i < int(peerStats.PCT1) {
sb.WriteString("[green]" + charMarked)
} else {
sb.WriteString("[white]" + charUnmarked)
}
}
sb.WriteString("[white]\n") // closeRow
sb.WriteString(fmt.Sprintf(
" [green]50-100ms : [white]%5s %.f%%",
strconv.Itoa(peerStats.CNT2),
peerStats.PCT2,
))
sb.WriteString(fmt.Sprintf(
"%"+strconv.Itoa(10-len(fmt.Sprintf("%.f", peerStats.PCT2)))+"s",
"",
))
for i := 0; i < granularitySmall; i++ {
if i < int(peerStats.PCT2) {
sb.WriteString("[yellow]" + charMarked)
} else {
sb.WriteString("[white]" + charUnmarked)
}
}
sb.WriteString("[white]\n") // closeRow
sb.WriteString(fmt.Sprintf(
" [green]100-200ms : [white]%5s %.f%%",
strconv.Itoa(peerStats.CNT3),
peerStats.PCT3,
))
sb.WriteString(fmt.Sprintf(
"%"+strconv.Itoa(10-len(fmt.Sprintf("%.f", peerStats.PCT3)))+"s",
"",
))
for i := 0; i < granularitySmall; i++ {
if i < int(peerStats.PCT3) {
sb.WriteString("[red]" + charMarked)
} else {
sb.WriteString("[white]" + charUnmarked)
}
}
sb.WriteString("[white]\n") // closeRow
sb.WriteString(fmt.Sprintf(
" [green]200ms < : [white]%5s %.f%%",
strconv.Itoa(peerStats.CNT4),
peerStats.PCT4,
))
sb.WriteString(fmt.Sprintf(
"%"+strconv.Itoa(10-len(fmt.Sprintf("%.f", peerStats.PCT4)))+"s",