Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

common/version/version.go

@@ -0,0 +1,99 @@
+package version
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+type Version struct {
+	Major    int
+	Minor    int
+	Revision int
+}
+
+var ErrVersionString = errors.New("bad version string")
+
+func New(ver string) (*Version, error) {
+	vs := strings.Split(ver, ".")
+	if len(vs) != 3 {
+		return nil, ErrVersionString
+	}
+	major, err := strconv.Atoi(vs[0])
+	if err != nil {
+		return nil, ErrVersionString
+	}
+	minor, err := strconv.Atoi(vs[1])
+	if err != nil || minor > 999 {
+		return nil, ErrVersionString
+	}
+	revision, err := strconv.Atoi(vs[2])
+	if err != nil || revision > 999 {
+		return nil, ErrVersionString
+	}
+	return &Version{Major: major, Minor: minor, Revision: revision}, nil
+}
+
+func MustNew(ver string) *Version {
+	v, err := New(ver)
+	if err != nil {
+		panic("bad version")
+	}
+	return v
+}
+
+func (v *Version) GetCode() int64 {
+	return int64(v.Major*1000000) + int64(v.Minor*1000) + int64(v.Revision)
+}
+
+// for print
+func (v *Version) String() string {
+	return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Revision)
+}
+
+// Compare 0相等, -1是 v< other, 1 v > other
+func (v *Version) Compare(other *Version) float64 {
+	if v.String() == other.String() {
+		return 0
+	}
+	if v.Major > other.Major {
+		return 1
+	}
+	if v.Major < other.Major {
+		return -1
+	}
+	if v.Minor > other.Minor {
+		return 1
+	}
+	if v.Minor < other.Minor {
+		return -1
+	}
+	if v.Revision > other.Revision {
+		return 1
+	}
+	if v.Revision < other.Revision {
+		return -1
+	}
+	return 0
+}
+
+func (v *Version) GT(other *Version) bool {
+	return v.Compare(other) > 0
+}
+
+func (v *Version) LT(other *Version) bool {
+	return v.Compare(other) < 0
+}
+
+func (v *Version) EQ(other *Version) bool {
+	return v.Compare(other) == 0
+}
+
+func (v *Version) GTE(other *Version) bool {
+	return v.Compare(other) >= 0
+}
+
+func (v *Version) LTE(other *Version) bool {
+	return v.Compare(other) <= 0
+}