|
| 1 | +package version |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "strconv" |
| 6 | + "strings" |
| 7 | +) |
| 8 | + |
| 9 | +type Version struct { |
| 10 | + Major int |
| 11 | + Minor int |
| 12 | + Patch int |
| 13 | +} |
| 14 | + |
| 15 | +func New(major, minor, patch int) *Version { |
| 16 | + return &Version{ |
| 17 | + Major: major, |
| 18 | + Minor: minor, |
| 19 | + Patch: patch, |
| 20 | + } |
| 21 | +} |
| 22 | + |
| 23 | +func (v Version) String() string { |
| 24 | + return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch) |
| 25 | +} |
| 26 | + |
| 27 | +func (v Version) Equal(other Version) bool { |
| 28 | + return v.Major == other.Major && v.Minor == other.Minor && v.Patch == other.Patch |
| 29 | +} |
| 30 | + |
| 31 | +func (v Version) GreaterThan(other Version) bool { |
| 32 | + if v.Major > other.Major { |
| 33 | + return true |
| 34 | + } else if v.Major < other.Major { |
| 35 | + return false |
| 36 | + } |
| 37 | + |
| 38 | + if v.Minor > other.Minor { |
| 39 | + return true |
| 40 | + } else if v.Minor < other.Minor { |
| 41 | + return false |
| 42 | + } |
| 43 | + |
| 44 | + return v.Patch > other.Patch |
| 45 | +} |
| 46 | + |
| 47 | +func (v Version) LessThan(other Version) bool { |
| 48 | + return !v.Equal(other) && !v.GreaterThan(other) |
| 49 | +} |
| 50 | + |
| 51 | +func ParseVersion(version string) (*Version, error) { |
| 52 | + parts := strings.Split(version, ".") |
| 53 | + if len(parts) != 3 { |
| 54 | + return nil, fmt.Errorf("invalid version %s", version) |
| 55 | + } |
| 56 | + |
| 57 | + major, err := strconv.Atoi(parts[0]) |
| 58 | + if err != nil { |
| 59 | + return nil, fmt.Errorf("invalid major version %s: %w", parts[0], err) |
| 60 | + } |
| 61 | + if major < 0 { |
| 62 | + return nil, fmt.Errorf("invalid major version %s: cannot be negative", parts[0]) |
| 63 | + } |
| 64 | + |
| 65 | + minor, err := strconv.Atoi(parts[1]) |
| 66 | + if err != nil { |
| 67 | + return nil, fmt.Errorf("invalid minor version %s: %w", parts[1], err) |
| 68 | + } |
| 69 | + if minor < 0 { |
| 70 | + return nil, fmt.Errorf("invalid minor version %s: cannot be negative", parts[1]) |
| 71 | + } |
| 72 | + |
| 73 | + patch, err := strconv.Atoi(parts[2]) |
| 74 | + if err != nil { |
| 75 | + return nil, fmt.Errorf("invalid patch version %s: %w", parts[2], err) |
| 76 | + } |
| 77 | + if patch < 0 { |
| 78 | + return nil, fmt.Errorf("invalid patch version %s: cannot be negative", parts[2]) |
| 79 | + } |
| 80 | + |
| 81 | + return New(major, minor, patch), nil |
| 82 | +} |
| 83 | + |
| 84 | +func IsVersionGreaterOrEqual(a, b string) (bool, error) { |
| 85 | + versionA, err := ParseVersion(a) |
| 86 | + if err != nil { |
| 87 | + return false, fmt.Errorf("invalid version %s: %w", a, err) |
| 88 | + } |
| 89 | + |
| 90 | + versionB, err := ParseVersion(b) |
| 91 | + if err != nil { |
| 92 | + return false, fmt.Errorf("invalid version %s: %w", b, err) |
| 93 | + } |
| 94 | + return versionA.Equal(*versionB) || versionA.GreaterThan(*versionB), nil |
| 95 | +} |
| 96 | + |
| 97 | +func IsVersionLessThan(a, b string) (bool, error) { |
| 98 | + greaterOrEqual, err := IsVersionGreaterOrEqual(a, b) |
| 99 | + if err != nil { |
| 100 | + return false, err |
| 101 | + } |
| 102 | + return !greaterOrEqual, nil |
| 103 | +} |
0 commit comments