Add config file support

pkg/cli/cmds/debug.go

@@ -0,0 +1,31 @@
+package cmds
+
+import (
+	"github.com/rancher/k3s/pkg/version"
+	"github.com/rancher/spur/cli"
+	"github.com/sirupsen/logrus"
+)
+
+var (
+	Debug     = false
+	DebugFlag = cli.BoolFlag{
+		Name:        "debug",
+		Usage:       "(logging) Turn on debug logs",
+		Destination: &Debug,
+		EnvVars:     []string{version.ProgramUpper + "_DEBUG"},
+	}
+)
+
+func DebugContext(f func(*cli.Context) error) func(ctx *cli.Context) error {
+	return func(ctx *cli.Context) error {
+		if f != nil {
+			if err := f(ctx); err != nil {
+				return err
+			}
+		}
+		if Debug {
+			logrus.SetLevel(logrus.DebugLevel)
+		}
+		return nil
+	}
+}