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  Fix self-update restart: app never came back after "Обновить"

  LastSkywalker released this 2026-05-28 21:49:47 +03:00 | 47 commits to main since this release

  Two compounding bugs in RestartApp:

  1. Single-instance race. We launched the new exe and only exited 500ms
     later. The new process started while we still held the Wails
     SingleInstanceLock mutex, so it saw "another instance running",
     handed off, and exited — then we exited too, leaving nothing. Now
     the relaunch is delegated to a detached cmd /c ping -n 3 & start "" exe that waits ~2s for us to fully exit (releasing the mutex)
     before starting the new binary.

  2. Relaunching the .old binary. minio/selfupdate renames the running
     image to ".old" and writes the new binary at the original path;
     os.Executable() can report the .old path. We now strip a trailing
     .old so we always relaunch the freshly-installed binary.

  This also explains "autodetect died": failed restarts left the user on
  a stale/dev binary whose version check short-circuits. Once an update
  restarts cleanly onto a tagged build, the 30-min auto-check resumes.

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