// Copyright 2015 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
// Contains the geth command usage template and generator.
package main
import (
"io"
"sort"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/internal/debug"
"gopkg.in/urfave/cli.v1"
"strings"
)
// AppHelpTemplate is the test template for the default, global app help topic.
var AppHelpTemplate = `NAME:
{{.App.Name}} - {{.App.Usage}}
Copyright 2013-2017 The go-ethereum Authors
USAGE:
{{.App.HelpName}} [options]{{if .App.Commands}} command [command options]{{end}} {{if .App.ArgsUsage}}{{.App.ArgsUsage}}{{else}}[arguments...]{{end}}
{{if .App.Version}}
VERSION:
{{.App.Version}}
{{end}}{{if len .App.Authors}}
AUTHOR(S):
{{range .App.Authors}}{{ . }}{{end}}
{{end}}{{if .App.Commands}}
COMMANDS:
{{range .App.Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
{{end}}{{end}}{{if .FlagGroups}}
{{range .FlagGroups}}{{.Name}} OPTIONS:
{{range .Flags}}{{.}}
{{end}}
{{end}}{{end}}{{if .App.Copyright }}
COPYRIGHT:
{{.App.Copyright}}
{{end}}
`
// flagGroup is a collection of flags belonging to a single topic.
type flagGroup struct {
Name string
Flags []cli.Flag
}
// AppHelpFlagGroups is the application flags, grouped by functionality.
var AppHelpFlagGroups = []flagGroup{
{
Name: "ETHEREUM",
Flags: []cli.Flag{
configFileFlag,
utils.DataDirFlag,
utils.KeyStoreDirFlag,
utils.NoUSBFlag,
utils.NetworkIdFlag,
utils.TestnetFlag,
utils.RinkebyFlag,
utils.SyncModeFlag,
utils.EthStatsURLFlag,
utils.IdentityFlag,
utils.LightServFlag,
utils.LightPeersFlag,
utils.LightKDFFlag,
},
},
{Name: "DEVELOPER CHAIN",
Flags: []cli.Flag{
utils.DeveloperFlag,
utils.DeveloperPeriodFlag,
},
},
{
Name: "ETHASH",
Flags: []cli.Flag{
utils.EthashCacheDirFlag,
utils.EthashCachesInMemoryFlag,
utils.EthashCachesOnDiskFlag,
utils.EthashDatasetDirFlag,
utils.EthashDatasetsInMemoryFlag,
utils.EthashDatasetsOnDiskFlag,
},
},
//{
// Name: "DASHBOARD",
// Flags: []cli.Flag{
// utils.DashboardEnabledFlag,
// utils.DashboardAddrFlag,
// utils.DashboardPortFlag,
// utils.DashboardRefreshFlag,
// utils.DashboardAssetsFlag,
// },
//},
{
Name: "TRANSACTION POOL",
Flags: []cli.Flag{
utils.TxPoolNoLocalsFlag,
utils.TxPoolJournalFlag,
utils.TxPoolRejournalFlag,
utils.TxPoolPriceLimitFlag,
utils.TxPoolPriceBumpFlag,
utils.TxPoolAccountSlotsFlag,
utils.TxPoolGlobalSlotsFlag,
utils.TxPoolAccountQueueFlag,
utils.TxPoolGlobalQueueFlag,
utils.TxPoolLifetimeFlag,
},
},
{
Name: "PERFORMANCE TUNING",
Flags: []cli.Flag{
utils.CacheFlag,
utils.TrieCacheGenFlag,
},
},
{
Name: "ACCOUNT",
Flags: []cli.Flag{
utils.UnlockedAccountFlag,
utils.PasswordFileFlag,
},
},
{
Name: "API AND CONSOLE",
Flags: []cli.Flag{
utils.RPCEnabledFlag,
utils.RPCListenAddrFlag,
utils.RPCPortFlag,
utils.RPCApiFlag,
utils.WSEnabledFlag,
utils.WSListenAddrFlag,
utils.WSPortFlag,
utils.WSApiFlag,
utils.WSAllowedOriginsFlag,
utils.IPCDisabledFlag,
utils.IPCPathFlag,
utils.RPCCORSDomainFlag,
utils.JSpathFlag,
utils.ExecFlag,
utils.PreloadJSFlag,
},
},
{
Name: "NETWORKING",
Flags: []cli.Flag{
utils.BootnodesFlag,
utils.BootnodesV4Flag,
utils.BootnodesV5Flag,
utils.ListenPortFlag,
utils.MaxPeersFlag,
utils.MaxPendingPeersFlag,
utils.NATFlag,
utils.NoDiscoverFlag,
utils.DiscoveryV5Flag,
utils.NetrestrictFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
},
},
{
Name: "MINER",
Flags: []cli.Flag{
utils.MiningEnabledFlag,
utils.MinerThreadsFlag,
utils.EtherbaseFlag,
utils.TargetGasLimitFlag,
utils.GasPriceFlag,
utils.ExtraDataFlag,
},
},
{
Name: "GAS PRICE ORACLE",
Flags: []cli.Flag{
utils.GpoBlocksFlag,
utils.GpoPercentileFlag,
},
},
{
Name: "VIRTUAL MACHINE",
Flags: []cli.Flag{
utils.VMEnableDebugFlag,
},
},
{
Name: "LOGGING AND DEBUGGING",
Flags: append([]cli.Flag{
utils.MetricsEnabledFlag,
utils.FakePoWFlag,
utils.NoCompactionFlag,
}, debug.Flags...),
},
{
Name: "WHISPER (EXPERIMENTAL)",
Flags: whisperFlags,
},
{
Name: "DEPRECATED",
Flags: []cli.Flag{
utils.FastSyncFlag,
utils.LightModeFlag,
},
},
{
Name: "MISC",
},
}
// byCategory sorts an array of flagGroup by Name in the order
// defined in AppHelpFlagGroups.
type byCategory []flagGroup
func (a byCategory) Len() int { return len(a) }
func (a byCategory) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byCategory) Less(i, j int) bool {
iCat, jCat := a[i].Name, a[j].Name
iIdx, jIdx := len(AppHelpFlagGroups), len(AppHelpFlagGroups) // ensure non categorized flags come last
for i, group := range AppHelpFlagGroups {
if iCat == group.Name {
iIdx = i
}
if jCat == group.Name {
jIdx = i
}
}
return iIdx < jIdx
}
func flagCategory(flag cli.Flag) string {
for _, category := range AppHelpFlagGroups {
for _, flg := range category.Flags {
if flg.GetName() == flag.GetName() {
return category.Name
}
}
}
return "MISC"
}
func init() {
// Override the default app help template
cli.AppHelpTemplate = AppHelpTemplate
// Define a one shot struct to pass to the usage template
type helpData struct {
App interface{}
FlagGroups []flagGroup
}
// Override the default app help printer, but only for the global app help
originalHelpPrinter := cli.HelpPrinter
cli.HelpPrinter = func(w io.Writer, tmpl string, data interface{}) {
if tmpl == AppHelpTemplate {
// Iterate over all the flags and add any uncategorized ones
categorized := make(map[string]struct{})
for _, group := range AppHelpFlagGroups {
for _, flag := range group.Flags {
categorized[flag.String()] = struct{}{}
}
}
uncategorized := []cli.Flag{}
for _, flag := range data.(*cli.App).Flags {
if _, ok := categorized[flag.String()]; !ok {
if strings.HasPrefix(flag.GetName(), "dashboard") {
continue
}
uncategorized = append(uncategorized, flag)
}
}
if len(uncategorized) > 0 {
// Append all ungategorized options to the misc group
miscs := len(AppHelpFlagGroups[len(AppHelpFlagGroups)-1].Flags)
AppHelpFlagGroups[len(AppHelpFlagGroups)-1].Flags = append(AppHelpFlagGroups[len(AppHelpFlagGroups)-1].Flags, uncategorized...)
// Make sure they are removed afterwards
defer func() {
AppHelpFlagGroups[len(AppHelpFlagGroups)-1].Flags = AppHelpFlagGroups[len(AppHelpFlagGroups)-1].Flags[:miscs]
}()
}
// Render out custom usage screen
originalHelpPrinter(w, tmpl, helpData{data, AppHelpFlagGroups})
} else if tmpl == utils.CommandHelpTemplate {
// Iterate over all command specific flags and categorize them
categorized := make(map[string][]cli.Flag)
for _, flag := range data.(cli.Command).Flags {
if _, ok := categorized[flag.String()]; !ok {
categorized[flagCategory(flag)] = append(categorized[flagCategory(flag)], flag)
}
}
// sort to get a stable ordering
sorted := make([]flagGroup, 0, len(categorized))
for cat, flgs := range categorized {
sorted = append(sorted, flagGroup{cat, flgs})
}
sort.Sort(byCategory(sorted))
// add sorted array to data and render with default printer
originalHelpPrinter(w, tmpl, map[string]interface{}{
"cmd": data,
"categorizedFlags": sorted,
})
} else {
originalHelpPrinter(w, tmpl, data)
}
}
}
