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// 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"
"github.com/codegangsta/cli"
"github.com/ethereum/go-ethereum/cmd/utils"
)
// AppHelpTemplate is the test template for the default, global app help topic.
var AppHelpTemplate = `NAME:
{{.App.Name}} - {{.App.Usage}}
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{
utils.DataDirFlag,
utils.NetworkIdFlag,
utils.OlympicFlag,
utils.TestNetFlag,
utils.DevModeFlag,
utils.GenesisFileFlag,
utils.IdentityFlag,
utils.FastSyncFlag,
utils.LightKDFFlag,
utils.CacheFlag,
utils.BlockchainVersionFlag,
},
},
{
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.IPCDisabledFlag,
utils.IPCApiFlag,
utils.IPCPathFlag,
utils.RPCCORSDomainFlag,
utils.JSpathFlag,
utils.ExecFlag,
},
},
{
Name: "NETWORKING",
Flags: []cli.Flag{
utils.BootnodesFlag,
utils.ListenPortFlag,
utils.MaxPeersFlag,
utils.MaxPendingPeersFlag,
utils.NATFlag,
utils.NoDiscoverFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
},
},
{
Name: "MINER",
Flags: []cli.Flag{
utils.MiningEnabledFlag,
utils.MinerThreadsFlag,
utils.MiningGPUFlag,
utils.AutoDAGFlag,
utils.EtherbaseFlag,
utils.GasPriceFlag,
utils.ExtraDataFlag,
},
},
{
Name: "GAS PRICE ORACLE",
Flags: []cli.Flag{
utils.GpoMinGasPriceFlag,
utils.GpoMaxGasPriceFlag,
utils.GpoFullBlockRatioFlag,
utils.GpobaseStepDownFlag,
utils.GpobaseStepUpFlag,
utils.GpobaseCorrectionFactorFlag,
},
},
{
Name: "VIRTUAL MACHINE",
Flags: []cli.Flag{
utils.VMDebugFlag,
utils.VMEnableJitFlag,
utils.VMForceJitFlag,
utils.VMJitCacheFlag,
},
},
{
Name: "LOGGING AND DEBUGGING",
Flags: []cli.Flag{
utils.VerbosityFlag,
utils.LogVModuleFlag,
utils.BacktraceAtFlag,
utils.LogFileFlag,
utils.PProfEanbledFlag,
utils.PProfPortFlag,
utils.MetricsEnabledFlag,
},
},
{
Name: "EXPERIMENTAL",
Flags: []cli.Flag{
utils.WhisperEnabledFlag,
utils.NatspecEnabledFlag,
},
},
{
Name: "MISCELLANEOUS",
Flags: []cli.Flag{
utils.SolcPathFlag,
},
},
}
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 {
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 {
originalHelpPrinter(w, tmpl, data)
}
}
}
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