feat: init project

server/version/version.go

@@ -0,0 +1,67 @@
+package version
+
+import (
+	"strconv"
+	"strings"
+)
+
+// Version is the service current released version.
+// Semantic versioning: https://semver.org/
+var Version = "0.0.1"
+
+// DevVersion is the service current development version.
+var DevVersion = "0.0.1"
+
+func GetCurrentVersion(mode string) string {
+	if mode == "dev" {
+		return DevVersion
+	}
+	return Version
+}
+
+func GetMinorVersion(version string) string {
+	versionList := strings.Split(version, ".")
+	if len(versionList) < 3 {
+		return ""
+	}
+	return versionList[0] + "." + versionList[1]
+}
+
+func GetSchemaVersion(version string) string {
+	minorVersion := GetMinorVersion(version)
+
+	return minorVersion + ".0"
+}
+
+// convSemanticVersionToInt converts version string to int.
+func convSemanticVersionToInt(version string) int {
+	versionList := strings.Split(version, ".")
+
+	if len(versionList) < 3 {
+		return 0
+	}
+	major, err := strconv.Atoi(versionList[0])
+	if err != nil {
+		return 0
+	}
+	minor, err := strconv.Atoi(versionList[1])
+	if err != nil {
+		return 0
+	}
+	patch, err := strconv.Atoi(versionList[2])
+	if err != nil {
+		return 0
+	}
+
+	return major*10000 + minor*100 + patch
+}
+
+// IsVersionGreaterThanOrEqualTo returns true if version is greater than or equal to target.
+func IsVersionGreaterOrEqualThan(version, target string) bool {
+	return convSemanticVersionToInt(version) >= convSemanticVersionToInt(target)
+}
+
+// IsVersionGreaterThan returns true if version is greater than target.
+func IsVersionGreaterThan(version, target string) bool {
+	return convSemanticVersionToInt(version) > convSemanticVersionToInt(target)
+}