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// Copyright 2016 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/>.
package main
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/params"
"gopkg.in/urfave/cli.v1"
)
var (
makedagCommand = cli.Command{
Action: makedag,
Name: "makedag",
Usage: "Generate ethash DAG (for testing)",
ArgsUsage: "<blockNum> <outputDir>",
Category: "MISCELLANEOUS COMMANDS",
Description: `
The makedag command generates an ethash DAG in /tmp/dag.
This command exists to support the system testing project.
Regular users do not need to execute it.
`,
}
versionCommand = cli.Command{
Action: version,
Name: "version",
Usage: "Print version numbers",
ArgsUsage: " ",
Category: "MISCELLANEOUS COMMANDS",
Description: `
The output of this command is supposed to be machine-readable.
`,
}
licenseCommand = cli.Command{
Action: license,
Name: "license",
Usage: "Display license information",
ArgsUsage: " ",
Category: "MISCELLANEOUS COMMANDS",
}
)
func makedag(ctx *cli.Context) error {
args := ctx.Args()
wrongArgs := func() {
utils.Fatalf(`Usage: geth makedag <block number> <outputdir>`)
}
switch {
case len(args) == 2:
blockNum, err := strconv.ParseUint(args[0], 0, 64)
dir := args[1]
if err != nil {
wrongArgs()
} else {
dir = filepath.Clean(dir)
// seems to require a trailing slash
if !strings.HasSuffix(dir, "/") {
dir = dir + "/"
}
_, err = ioutil.ReadDir(dir)
if err != nil {
utils.Fatalf("Can't find dir")
}
fmt.Println("making DAG, this could take awhile...")
ethash.MakeDataset(blockNum, dir)
}
default:
wrongArgs()
}
return nil
}
func version(ctx *cli.Context) error {
fmt.Println(strings.Title(clientIdentifier))
fmt.Println("Version:", params.Version)
if gitCommit != "" {
fmt.Println("Git Commit:", gitCommit)
}
fmt.Println("Architecture:", runtime.GOARCH)
fmt.Println("Protocol Versions:", eth.ProtocolVersions)
fmt.Println("Network Id:", ctx.GlobalInt(utils.NetworkIdFlag.Name))
fmt.Println("Go Version:", runtime.Version())
fmt.Println("Operating System:", runtime.GOOS)
fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH"))
fmt.Printf("GOROOT=%s\n", runtime.GOROOT())
return nil
}
func license(_ *cli.Context) error {
fmt.Println(`Geth 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.
Geth 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 geth. If not, see <http://www.gnu.org/licenses/>.
`)
return nil
}
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