Refactor config and split them in packages (#8351)

This change is related to larger config migration PR
change, this is a first stage change to move our
configs to `cmd/config/` - divided into its subsystems

cmd/globals.go

@@ -18,16 +18,13 @@ package cmd
 
 import (
 	"crypto/x509"
-	"fmt"
 	"os"
 	"time"
 
-	isatty "github.com/mattn/go-isatty"
 	"github.com/minio/minio-go/v6/pkg/set"
 
 	etcd "github.com/coreos/etcd/clientv3"
 	humanize "github.com/dustin/go-humanize"
-	"github.com/fatih/color"
 	"github.com/minio/minio/cmd/crypto"
 	xhttp "github.com/minio/minio/cmd/http"
 	"github.com/minio/minio/pkg/auth"
@@ -269,7 +266,7 @@ var (
 	standardExcludeCompressContentTypes = []string{"video/*", "audio/*", "application/zip", "application/x-gzip", "application/x-zip-compressed", " application/x-compress", "application/x-spoon"}
 
 	// Authorization validators list.
-	globalIAMValidators *openid.Validators
+	globalOpenIDValidators *openid.Validators
 
 	// OPA policy system.
 	globalPolicyOPA *iampolicy.Opa
@@ -288,64 +285,6 @@ var (
 	// Add new variable global values here.
 )
 
-// global colors.
-var (
-	// Check if we stderr, stdout are dumb terminals, we do not apply
-	// ansi coloring on dumb terminals.
-	isTerminal = func() bool {
-		return isatty.IsTerminal(os.Stdout.Fd()) && isatty.IsTerminal(os.Stderr.Fd())
-	}
-
-	colorBold = func() func(a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.Bold).SprintFunc()
-		}
-		return fmt.Sprint
-	}()
-	colorRed = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.FgRed).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-	colorBlue = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.FgBlue).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-	colorYellow = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.FgYellow).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-	colorCyanBold = func() func(a ...interface{}) string {
-		if isTerminal() {
-			color.New(color.FgCyan, color.Bold).SprintFunc()
-		}
-		return fmt.Sprint
-	}()
-	colorYellowBold = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.FgYellow, color.Bold).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-	colorBgYellow = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.BgYellow).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-	colorBlack = func() func(format string, a ...interface{}) string {
-		if isTerminal() {
-			return color.New(color.FgBlack).SprintfFunc()
-		}
-		return fmt.Sprintf
-	}()
-)
-
 // Returns minio global information, as a key value map.
 // returned list of global values is not an exhaustive
 // list. Feel free to add new relevant fields.