cmd/clef: fix colored output on Windows (#19889)

* Fixes #19861 - coloured output

* cmd/clef: minor formatting nit

* cmd/clef: bleah, stupid github editor
This commit is contained in:
Frank Szendzielarz 2019-07-25 13:46:42 +02:00 committed by Péter Szilágyi
parent 8812c4d3f9
commit f34a3a6805

View File

@ -53,6 +53,8 @@ import (
"github.com/ethereum/go-ethereum/signer/fourbyte"
"github.com/ethereum/go-ethereum/signer/rules"
"github.com/ethereum/go-ethereum/signer/storage"
colorable "github.com/mattn/go-colorable"
"github.com/mattn/go-isatty"
"gopkg.in/urfave/cli.v1"
)
@ -392,7 +394,13 @@ func initialize(c *cli.Context) error {
}
fmt.Println()
}
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(c.Int(logLevelFlag.Name)), log.StreamHandler(logOutput, log.TerminalFormat(true))))
usecolor := (isatty.IsTerminal(os.Stderr.Fd()) || isatty.IsCygwinTerminal(os.Stderr.Fd())) && os.Getenv("TERM") != "dumb"
output := io.Writer(logOutput)
if usecolor {
output = colorable.NewColorable(logOutput)
}
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(c.Int(logLevelFlag.Name)), log.StreamHandler(output, log.TerminalFormat(usecolor))))
return nil
}