Remove all unused variables and functions (#5823)

cmd/api-resources.go

@@ -78,13 +78,3 @@ func getObjectResources(values url.Values) (uploadID string, partNumberMarker, m
 	encodingType = values.Get("encoding-type")
 	return
 }
-
-// Validates filter values
-func validateFilterValues(values []string) (err APIErrorCode) {
-	for _, value := range values {
-		if !IsValidObjectPrefix(value) {
-			return ErrFilterValueInvalid
-		}
-	}
-	return ErrNone
-}

cmd/api-resources_test.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"net/url"
-	"strings"
 	"testing"
 )
 
@@ -189,38 +188,3 @@ func TestGetObjectsResources(t *testing.T) {
 		}
 	}
 }
-
-// Validates if filter values are correct
-func TestValidateFilterValues(t *testing.T) {
-	testCases := []struct {
-		values        []string
-		expectedError APIErrorCode
-	}{
-		{
-			values:        []string{""},
-			expectedError: ErrNone,
-		},
-		{
-			values:        []string{"", "prefix"},
-			expectedError: ErrNone,
-		},
-		{
-			values:        []string{strings.Repeat("a", 1025)},
-			expectedError: ErrFilterValueInvalid,
-		},
-		{
-			values:        []string{"a\\b"},
-			expectedError: ErrFilterValueInvalid,
-		},
-		{
-			values:        []string{string([]byte{0xff, 0xfe, 0xfd})},
-			expectedError: ErrFilterValueInvalid,
-		},
-	}
-
-	for i, testCase := range testCases {
-		if actualError := validateFilterValues(testCase.values); actualError != testCase.expectedError {
-			t.Errorf("Test %d: Expected %d, got %d", i+1, testCase.expectedError, actualError)
-		}
-	}
-}

cmd/disk-cache-fs.go

@@ -37,7 +37,6 @@ import (
 const (
 	// cache.json object metadata for cached objects.
 	cacheMetaJSONFile = "cache.json"
-	cacheMetaFormat   = "cache"
 
 	cacheEnvDelimiter = ";"
 )

cmd/format-disk-cache.go

@@ -87,15 +87,6 @@ func newFormatCacheV1(drives []string) []*formatCacheV1 {
 	return formats
 }
 
-// Returns format.Cache.Version
-func formatCacheGetVersion(r io.ReadSeeker) (string, error) {
-	format := &formatCacheVersionDetect{}
-	if err := jsonLoad(r, format); err != nil {
-		return "", err
-	}
-	return format.Cache.Version, nil
-}
-
 // Creates a new cache format.json if unformatted.
 func createFormatCache(fsFormatPath string, format *formatCacheV1) error {
 	// open file using READ & WRITE permission

cmd/format-disk-cache_test.go

@@ -18,10 +18,20 @@ package cmd
 
 import (
 	"context"
+	"io"
 	"os"
 	"testing"
 )
 
+// Returns format.Cache.Version
+func formatCacheGetVersion(r io.ReadSeeker) (string, error) {
+	format := &formatCacheVersionDetect{}
+	if err := jsonLoad(r, format); err != nil {
+		return "", err
+	}
+	return format.Cache.Version, nil
+}
+
 // TestDiskCacheFormat - tests initFormatCache, formatMetaGetFormatBackendCache, formatCacheGetVersion.
 func TestDiskCacheFormat(t *testing.T) {
 	ctx := context.Background()

cmd/fs-v1-metadata.go

@@ -202,14 +202,6 @@ func parseFSVersion(fsMetaBuf []byte) string {
 	return gjson.GetBytes(fsMetaBuf, "version").String()
 }
 
-func parseFSFormat(fsMetaBuf []byte) string {
-	return gjson.GetBytes(fsMetaBuf, "format").String()
-}
-
-func parseFSRelease(fsMetaBuf []byte) string {
-	return gjson.GetBytes(fsMetaBuf, "minio.release").String()
-}
-
 func parseFSMetaMap(fsMetaBuf []byte) map[string]string {
 	// Get xlMetaV1.Meta map.
 	metaMapResult := gjson.GetBytes(fsMetaBuf, "meta").Map()

cmd/globals.go

@@ -191,7 +191,6 @@ var (
 	colorBold   = color.New(color.Bold).SprintFunc()
 	colorBlue   = color.New(color.FgBlue).SprintfFunc()
 	colorYellow = color.New(color.FgYellow).SprintfFunc()
-	colorRed    = color.New(color.FgRed).SprintfFunc()
 )
 
 // Returns minio global information, as a key value map.

cmd/hasher.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"crypto/md5"
-	"encoding/base64"
 	"encoding/hex"
 
 	"github.com/minio/sha256-simd"
@@ -47,8 +46,3 @@ func getMD5Sum(data []byte) []byte {
 func getMD5Hash(data []byte) string {
 	return hex.EncodeToString(getMD5Sum(data))
 }
-
-// getMD5HashBase64 returns MD5 hash in base64 encoding of given data.
-func getMD5HashBase64(data []byte) string {
-	return base64.StdEncoding.EncodeToString(getMD5Sum(data))
-}

cmd/logger/logger.go

@@ -33,9 +33,8 @@ import (
 
 // global colors.
 var (
-	colorBold   = color.New(color.Bold).SprintFunc()
-	colorYellow = color.New(color.FgYellow).SprintfFunc()
-	colorRed    = color.New(color.FgRed).SprintfFunc()
+	colorBold = color.New(color.Bold).SprintFunc()
+	colorRed  = color.New(color.FgRed).SprintfFunc()
 )
 
 var trimStrings []string

cmd/test-utils_test.go

@@ -1157,6 +1157,11 @@ func getCredentialString(accessKeyID, location string, t time.Time) string {
 	return accessKeyID + "/" + getScope(t, location)
 }
 
+// getMD5HashBase64 returns MD5 hash in base64 encoding of given data.
+func getMD5HashBase64(data []byte) string {
+	return base64.StdEncoding.EncodeToString(getMD5Sum(data))
+}
+
 // Returns new HTTP request object.
 func newTestRequest(method, urlStr string, contentLength int64, body io.ReadSeeker) (*http.Request, error) {
 	if method == "" {

cmd/utils.go

@@ -23,7 +23,6 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"encoding/xml"
-	"errors"
 	"fmt"
 	"io"
 	"net"
@@ -232,18 +231,6 @@ func isFile(path string) bool {
 	return false
 }
 
-// checkURL - checks if passed address correspond
-func checkURL(urlStr string) (*url.URL, error) {
-	if urlStr == "" {
-		return nil, errors.New("Address cannot be empty")
-	}
-	u, err := url.Parse(urlStr)
-	if err != nil {
-		return nil, fmt.Errorf("`%s` invalid: %s", urlStr, err.Error())
-	}
-	return u, nil
-}
-
 // UTCNow - returns current UTC time.
 func UTCNow() time.Time {
 	return time.Now().UTC()

cmd/utils_test.go

@@ -233,6 +233,18 @@ func TestStartProfiler(t *testing.T) {
 	}
 }
 
+// checkURL - checks if passed address correspond
+func checkURL(urlStr string) (*url.URL, error) {
+	if urlStr == "" {
+		return nil, errors.New("Address cannot be empty")
+	}
+	u, err := url.Parse(urlStr)
+	if err != nil {
+		return nil, fmt.Errorf("`%s` invalid: %s", urlStr, err.Error())
+	}
+	return u, nil
+}
+
 // TestCheckURL tests valid url.
 func TestCheckURL(t *testing.T) {
 	testCases := []struct {

cmd/xl-v1-utils.go

@@ -369,17 +369,6 @@ func shuffleDisks(disks []StorageAPI, distribution []int) (shuffledDisks []Stora
 	return shuffledDisks
 }
 
-// unshuffleIndex - performs reverse of the shuffleDisks operations
-// for a single 0-based index.
-func unshuffleIndex(n int, distribution []int) int {
-	for i, v := range distribution {
-		if v-1 == n {
-			return i
-		}
-	}
-	return -1
-}
-
 // evalDisks - returns a new slice of disks where nil is set if
 // the corresponding error in errs slice is not nil
 func evalDisks(disks []StorageAPI, errs []error) []StorageAPI {

pkg/handlers/proxy.go

@@ -26,7 +26,6 @@ import (
 var (
 	// De-facto standard header keys.
 	xForwardedFor    = http.CanonicalHeaderKey("X-Forwarded-For")
-	xForwardedHost   = http.CanonicalHeaderKey("X-Forwarded-Host")
 	xForwardedProto  = http.CanonicalHeaderKey("X-Forwarded-Proto")
 	xForwardedScheme = http.CanonicalHeaderKey("X-Forwarded-Scheme")
 	xRealIP          = http.CanonicalHeaderKey("X-Real-IP")