From 428eabe28d1077356b16f25828d78d8693a766bb Mon Sep 17 00:00:00 2001
From: Sean <darcys22@gmail.com>
Date: Mon, 7 Jan 2019 19:56:50 +1100
Subject: cmd/geth: support dumpconfig optionally saving to file (#18327)
* Changed dumpConfig function to optionally save to file
* Added O_TRUNC flag to file open and cleaned up code
---
cmd/geth/config.go | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
(limited to 'cmd')
diff --git a/cmd/geth/config.go b/cmd/geth/config.go
index 59f759f0e..f1e281196 100644
--- a/cmd/geth/config.go
+++ b/cmd/geth/config.go
@@ -20,7 +20,6 @@ import (
"bufio"
"errors"
"fmt"
- "io"
"math/big"
"os"
"reflect"
@@ -198,7 +197,17 @@ func dumpConfig(ctx *cli.Context) error {
if err != nil {
return err
}
- io.WriteString(os.Stdout, comment)
- os.Stdout.Write(out)
+
+ dump := os.Stdout
+ if ctx.NArg() > 0 {
+ dump, err = os.OpenFile(ctx.Args().Get(0), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
+ if err != nil {
+ return err
+ }
+ defer dump.Close()
+ }
+ dump.WriteString(comment)
+ dump.Write(out)
+
return nil
}
--
cgit v1.2.3