From b422835a59ddcba02f8fee3c0933c7bf09d9663e Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Tue, 17 Mar 2015 14:12:34 +0100
Subject: cmd/ethereum: add makedag command for testing
---
cmd/ethereum/main.go | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/cmd/ethereum/main.go b/cmd/ethereum/main.go
index 3b952dd79..35b636c6e 100644
--- a/cmd/ethereum/main.go
+++ b/cmd/ethereum/main.go
@@ -30,6 +30,7 @@ import (
"time"
"github.com/codegangsta/cli"
+ "github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
@@ -54,6 +55,17 @@ func init() {
app.HideVersion = true // we have a command to print the version
app.Commands = []cli.Command{
blocktestCmd,
+ {
+ Action: makedag,
+ Name: "makedag",
+ Usage: "generate ethash dag (for testing)",
+ 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.
+`,
+ },
{
Action: version,
Name: "version",
@@ -318,6 +330,15 @@ func dump(ctx *cli.Context) {
}
}
+func makedag(ctx *cli.Context) {
+ chain, _, _ := utils.GetChain(ctx)
+ pow := ethash.New(chain)
+ fmt.Println("making cache")
+ pow.UpdateCache(true)
+ fmt.Println("making DAG")
+ pow.UpdateDAG()
+}
+
func version(c *cli.Context) {
fmt.Printf(`%v
Version: %v
--
cgit v1.2.3