Always color output and fold settled values into constants

render.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"os"
 	"strings"
 )
 
@@ -17,29 +16,8 @@ const (
 	cGrey   = "\x1b[90m"
 )
 
-var useColor bool
-
-func initColor(mode string) error {
-	switch mode {
-	case "always":
-		useColor = true
-	case "never":
-		useColor = false
-	case "auto":
-		if os.Getenv("NO_COLOR") != "" || os.Getenv("TERM") == "dumb" {
-			useColor = false
-			return nil
-		}
-		st, err := os.Stdout.Stat()
-		useColor = err == nil && st.Mode()&os.ModeCharDevice != 0
-	default:
-		return fmt.Errorf("unknown color mode %q (want auto, always, never)", mode)
-	}
-	return nil
-}
-
 func paint(s, code string) string {
-	if !useColor || s == "" {
+	if s == "" {
 		return s
 	}
 	return code + s + cReset