UPDATE: Add precheck version hdiff, support another hdiff

pkg/constant/constant.go

@@ -10,7 +10,7 @@ const ProxyZipFile = "64bit.zip"
 const LauncherFile = "firefly-launcher.exe"
 const TempUrl = "./temp"
 
-const CurrentLauncherVersion = "1.6.0"
+const CurrentLauncherVersion = "1.7.0"
 
 type ToolFile string
 

pkg/models/binary-version.go

@@ -10,10 +10,11 @@ import (
 )
 
 type BinaryVersion struct {
-	Name string
+	Name  string
 	Major int
 	Minor int
 	Patch int
+	Data  []byte
 }
 
 func ParseBinaryVersion(path string) (*BinaryVersion, error) {
@@ -28,7 +29,7 @@ func ParseBinaryVersion(path string) (*BinaryVersion, error) {
 	if lastDash == -1 {
 		return nil, errors.New("no dash found in version string")
 	}
-	
+
 	secondLastDash := strings.LastIndex(content[:lastDash], "-")
 	if secondLastDash == -1 {
 		return nil, errors.New("only one dash found in version string")
@@ -64,17 +65,18 @@ func ParseBinaryVersion(path string) (*BinaryVersion, error) {
 		}
 	}
 
+	binaryVersion.Data = data
 	return &binaryVersion, nil
 }
 
 func (v *BinaryVersion) String() string {
-	return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch)
+	return fmt.Sprintf("%s-%d.%d.%d", v.Name, v.Major, v.Minor, v.Patch)
 }
 
 func (v BinaryVersion) ToInt() int {
 	return v.Major*100 + v.Minor*10 + v.Patch
 }
 
-func (v BinaryVersion) Subtract(other BinaryVersion) int {
+func (v BinaryVersion) Subtract(other *BinaryVersion) int {
 	return v.ToInt() - other.ToInt()
 }

pkg/verifier/verifier.go

@@ -67,7 +67,7 @@ func check(relPath string, expectedSize int64, expectedMD5, base string) error {
 			fullPath, expectedSize, info.Size())
 	}
 
-	md5Hash, err := fileMD5(fullPath)
+	md5Hash, err := FileMD5(fullPath)
 	if err != nil {
 		return fmt.Errorf("error reading %s: %w", fullPath, err)
 	}
@@ -80,7 +80,7 @@ func check(relPath string, expectedSize int64, expectedMD5, base string) error {
 	return nil
 }
 
-func fileMD5(path string) (string, error) {
+func FileMD5(path string) (string, error) {
 	f, err := os.Open(path)
 	if err != nil {
 		return "", err