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clientupdate: cleanup tailscale binary copies on Windows (#10433)

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When updating on Windows, we make a copy of the tailscale.exe file in a
temp directory to perform the update, because the original tailscale.exe
gets deleted during the update.

This can eat up disk space if a machine is stuck doing repeated failed
update attempts. Clean up old copies explicitly before making a new one,
same as we do with MSIs.

Updates #10082

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This commit is contained in:
Andrew Lytvynov 2023-11-30 14:22:29 -06:00 committed by GitHub
parent b819f66eb1
commit 59d1077e28
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clientupdate/clientupdate.go
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@ -765,6 +765,7 @@ func (up *Updater) updateWindows() error {
up.Logf("authenticode verification succeeded")
up.Logf("making tailscale.exe copy to switch to...")
up.cleanupOldDownloads(filepath.Join(os.TempDir(), "tailscale-updater-*.exe"))
selfOrig, selfCopy, err := makeSelfCopy()
if err != nil {
return err