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hostinfo: detect NSIS vs MSI package type on Windows
Change-Id: I624a4cb04803e483553eb53c952060393029c435 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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@ -51,15 +51,47 @@ func GetOSVersion() string {
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return ""
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return ""
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}
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}
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func packageType() string {
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func packageType() (ret string) {
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if v, _ := packagingType.Load().(string); v != "" {
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if v, _ := packagingType.Load().(string); v != "" {
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return v
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return v
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}
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}
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switch runtime.GOOS {
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switch runtime.GOOS {
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case "windows":
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case "windows":
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defer func() {
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if ret != "" {
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packagingType.Store(ret)
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}
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}()
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if _, err := os.Stat(`C:\ProgramData\chocolatey\lib\tailscale`); err == nil {
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if _, err := os.Stat(`C:\ProgramData\chocolatey\lib\tailscale`); err == nil {
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return "choco"
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return "choco"
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}
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}
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exe, err := os.Executable()
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if err != nil {
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return ""
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}
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dir := filepath.Dir(exe)
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if !strings.Contains(dir, "Program Files") {
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// Atypical. Not worth trying to detect. Likely open
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// source tailscaled or a developer running by hand.
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return ""
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}
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nsisUninstaller := filepath.Join(dir, "Uninstall-Tailscale.exe")
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_, err = os.Stat(nsisUninstaller)
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if err == nil {
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return "nsis"
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}
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if os.IsNotExist(err) {
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_, cliErr := os.Stat(filepath.Join(dir, "tailscale.exe"))
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_, daemonErr := os.Stat(filepath.Join(dir, "tailscaled.exe"))
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if cliErr == nil && daemonErr == nil {
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// Almost certainly MSI.
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// We have tailscaled.exe and tailscale.exe
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// next to each other in Program Files, but no
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// uninstaller.
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// TODO(bradfitz,dblohm7): tighter heuristic?
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return "msi"
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}
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}
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case "darwin":
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case "darwin":
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// Using tailscaled or IPNExtension?
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// Using tailscaled or IPNExtension?
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exe, _ := os.Executable()
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exe, _ := os.Executable()
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