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Added O_TRUNC flag to file open and cleaned up code

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This commit is contained in:
Sean Darcy 2019-01-07 03:24:30 +00:00
parent fb889216ed
commit 66ed44061c
1 changed files with 5 additions and 8 deletions
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13
cmd/geth/config.go
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@ -20,7 +20,6 @@ import (
"bufio"
"errors"
"fmt"
"io"
"math/big"
"os"
"reflect"
@ -199,18 +198,16 @@ func dumpConfig(ctx *cli.Context) error {
return err
}
dump := os.Stdout
if ctx.NArg() > 0 {
f, err := os.OpenFile(ctx.Args().Get(0), os.O_RDWR|os.O_CREATE, 0644)
dump, err = os.OpenFile(ctx.Args().Get(0), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return err
}
defer f.Close()
f.WriteString(comment)
f.Write(out)
} else {
io.WriteString(os.Stdout, comment)
os.Stdout.Write(out)
defer dump.Close()
}
dump.WriteString(comment)
dump.Write(out)
return nil
}