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[RtlGetVersion](https://learn.microsoft.com/en-us/windows/win32/devnotes/rtlgetversion) returns the windows OS version regardless of manifest, so that is preferred over [GetVersion](https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-getversion). Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package osversion | ||
|
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| // Windows Client and Server build numbers. | ||
| // | ||
| // See: | ||
| // https://learn.microsoft.com/en-us/windows/release-health/release-information | ||
| // https://learn.microsoft.com/en-us/windows/release-health/windows-server-release-info | ||
| // https://learn.microsoft.com/en-us/windows/release-health/windows11-release-information | ||
| const ( | ||
| // RS1 (version 1607, codename "Redstone 1") corresponds to Windows Server | ||
| // 2016 (ltsc2016) and Windows 10 (Anniversary Update). | ||
| RS1 BuildNumber = 14393 | ||
| // V1607 (version 1607, codename "Redstone 1") is an alias for [RS1]. | ||
| V1607 = RS1 | ||
| // LTSC2016 (Windows Server 2016) is an alias for [RS1]. | ||
| LTSC2016 = RS1 | ||
|
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||
| // RS2 (version 1703, codename "Redstone 2") was a client-only update, and | ||
| // corresponds to Windows 10 (Creators Update). | ||
| RS2 BuildNumber = 15063 | ||
| // V1703 (version 1703, codename "Redstone 2") is an alias for [RS2]. | ||
| V1703 = RS2 | ||
|
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||
| // RS3 (version 1709, codename "Redstone 3") corresponds to Windows Server | ||
| // 1709 (Semi-Annual Channel (SAC)), and Windows 10 (Fall Creators Update). | ||
| RS3 BuildNumber = 16299 | ||
| // V1709 (version 1709, codename "Redstone 3") is an alias for [RS3]. | ||
| V1709 = RS3 | ||
|
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||
| // RS4 (version 1803, codename "Redstone 4") corresponds to Windows Server | ||
| // 1803 (Semi-Annual Channel (SAC)), and Windows 10 (April 2018 Update). | ||
| RS4 BuildNumber = 17134 | ||
| // V1803 (version 1803, codename "Redstone 4") is an alias for [RS4]. | ||
| V1803 = RS4 | ||
|
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||
| // RS5 (version 1809, codename "Redstone 5") corresponds to Windows Server | ||
| // 2019 (ltsc2019), and Windows 10 (October 2018 Update). | ||
| RS5 BuildNumber = 17763 | ||
| // V1809 (version 1809, codename "Redstone 5") is an alias for [RS5]. | ||
| V1809 = RS5 | ||
| // LTSC2019 (Windows Server 2019) is an alias for [RS5]. | ||
| LTSC2019 = RS5 | ||
|
|
||
| // V19H1 (version 1903, codename 19H1) corresponds to Windows Server 1903 (semi-annual | ||
| // channel). | ||
| V19H1 BuildNumber = 18362 | ||
| // V1903 (version 1903) is an alias for [V19H1]. | ||
| V1903 = V19H1 | ||
|
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||
| // V19H2 (version 1909, codename 19H2) corresponds to Windows Server 1909 (semi-annual | ||
| // channel). | ||
| V19H2 BuildNumber = 18363 | ||
| // V1909 (version 1909) is an alias for [V19H2]. | ||
| V1909 = V19H2 | ||
|
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||
| // V20H1 (version 2004, codename 20H1) corresponds to Windows Server 2004 (semi-annual | ||
| // channel). | ||
| V20H1 BuildNumber = 19041 | ||
| // V2004 (version 2004) is an alias for [V20H1]. | ||
| V2004 = V20H1 | ||
|
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||
| // V20H2 corresponds to Windows Server 20H2 (semi-annual channel). | ||
| V20H2 BuildNumber = 19042 | ||
|
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||
| // V21H1 corresponds to Windows Server 21H1 (semi-annual channel). | ||
| V21H1 BuildNumber = 19043 | ||
|
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||
| // V21H2Win10 corresponds to Windows 10 (November 2021 Update). | ||
| V21H2Win10 BuildNumber = 19044 | ||
|
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||
| // V21H2Server corresponds to Windows Server 2022 (ltsc2022). | ||
| V21H2Server BuildNumber = 20348 | ||
| // LTSC2022 (Windows Server 2022) is an alias for [V21H2Server] | ||
| LTSC2022 = V21H2Server | ||
|
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||
| // V21H2Win11 corresponds to Windows 11 (original release). | ||
| V21H2Win11 BuildNumber = 22000 | ||
|
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||
| // V22H2Win10 corresponds to Windows 10 (2022 Update). | ||
| V22H2Win10 BuildNumber = 19045 | ||
|
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||
| // V22H2Win11 corresponds to Windows 11 (2022 Update). | ||
| V22H2Win11 BuildNumber = 22621 | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| package osversion | ||
|
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||
| import ( | ||
| "fmt" | ||
| ) | ||
|
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| // Documentation and [OSVERSIONINFO] struct lists fields as DWORDs (uint32), but they | ||
| // all packed into a uint32 in GetVersion, so safe to downcast to smallper types | ||
| // | ||
| //[OSVERSIONINFO]: https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-osversioninfoexw | ||
|
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| type ( | ||
| MajorVersion uint8 | ||
| MinorVersion uint8 | ||
| BuildNumber uint16 | ||
| ) | ||
|
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| // Version is a wrapper for Windows version information | ||
| // | ||
| // https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-getversion | ||
| type Version struct { | ||
| Major MajorVersion | ||
| Minor MinorVersion | ||
| Build BuildNumber | ||
| } | ||
|
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| func FromPackedVersion(v uint32) Version { | ||
| return Version{ | ||
| Major: MajorVersion(v & 0xFF), | ||
| Minor: MinorVersion(v >> 8 & 0xFF), | ||
| Build: BuildNumber(v >> 16), | ||
| } | ||
| } | ||
|
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| var _ fmt.Stringer = Version{} | ||
|
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| // String returns the OSVersion formatted as a string. | ||
| func (v Version) String() string { | ||
| return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Build) | ||
| } | ||
|
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| // Compare compares the current OSVersion to another. | ||
| // The result will be 0 if they are equal, -1 the current version is lesser, and +1 otherwise. | ||
| func (v Version) Compare(other Version) int { | ||
| cmp := func(a, b int) int { | ||
| if a > b { | ||
| return 1 | ||
| } else if a < b { | ||
| return -1 | ||
| } | ||
| return 0 | ||
| } | ||
|
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| if c := cmp(int(v.Major), int(other.Major)); c != 0 { | ||
| return c | ||
| } | ||
| if c := cmp(int(v.Minor), int(other.Minor)); c != 0 { | ||
| return c | ||
| } | ||
| return cmp(int(v.Build), int(other.Build)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package osversion | ||
|
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| import ( | ||
| "fmt" | ||
| "testing" | ||
| ) | ||
|
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| func TestCompare(t *testing.T) { | ||
| tt := []struct { | ||
| a, b Version | ||
| res int | ||
| }{ | ||
| { | ||
| Version{10, 0, RS5}, | ||
| Version{10, 0, LTSC2022}, | ||
| -1, | ||
| }, | ||
| { | ||
| Version{6, 1, 9801}, | ||
| Version{10, 0, LTSC2022}, | ||
| -1, | ||
| }, | ||
| { | ||
| Version{10, 0, RS5}, | ||
| Version{10, 0, RS5}, | ||
| 0, | ||
| }, | ||
| { | ||
| Version{10, 0, LTSC2022}, | ||
| Version{10, 0, RS5}, | ||
| 1, | ||
| }, | ||
| { | ||
| Version{10, 0, LTSC2022}, | ||
| Version{6, 1, 9801}, | ||
| 1, | ||
| }, | ||
| } | ||
|
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| for _, tc := range tt { | ||
| if res := tc.a.Compare(tc.b); res != tc.res { | ||
| t.Errorf("(%s).Compare(%s): expected: %d, got: %d", tc.a, tc.b, res, tc.res) | ||
| } | ||
| } | ||
| } | ||
|
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| func TestOSVersionString(t *testing.T) { | ||
| v := FromPackedVersion(809042555) | ||
| expected := "123.2.12345" | ||
| actual := fmt.Sprintf("%s", v) //nolint: gosimple // testing that fmt works | ||
| if actual != expected { | ||
| t.Errorf("expected: %q, got: %q", expected, actual) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,31 @@ | ||
| //go:build windows | ||
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| package osversion | ||
|
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| import ( | ||
| "sync" | ||
|
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| "golang.org/x/sys/windows" | ||
| ) | ||
|
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| var ( | ||
| v Version | ||
| once sync.Once | ||
| ) | ||
|
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| // Get returns the Windows operating system version. | ||
| func Get() Version { | ||
| once.Do(func() { | ||
| vi := windows.RtlGetVersion() | ||
|
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| v.Major = MajorVersion(vi.MajorVersion) | ||
| v.Minor = MinorVersion(vi.MinorVersion) | ||
| v.Build = BuildNumber(vi.BuildNumber) | ||
| }) | ||
| return v | ||
| } | ||
|
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| // Build returns the Windows build number. | ||
| func Build() BuildNumber { | ||
| return Get().Build | ||
| } |