diff options
| author | Sean <darcys22@gmail.com> | 2019-01-07 16:56:50 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2019-01-07 16:56:50 +0800 |
| commit | 428eabe28d1077356b16f25828d78d8693a766bb (patch) | |
| tree | 01586ddc61853bef9f621e65ad7f3a0cc3f0c3d9 | |
| parent | e05d46807525f76dab83f84e9dfc9e4537398641 (diff) | |
| download | dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar.gz dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar.bz2 dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar.lz dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar.xz dexon-428eabe28d1077356b16f25828d78d8693a766bb.tar.zst dexon-428eabe28d1077356b16f25828d78d8693a766bb.zip | |
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
| -rw-r--r-- | cmd/geth/config.go | 15 |
1 files changed, 12 insertions, 3 deletions
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 } |