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restic/changelog/unreleased/issue-2248

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Refactor file handing for self-update. * Write new file payload to a temp file before touching the original binary. Minimizes the possibility of failing mid-write and corrupting the binary. * On Windows, move the original binary out to a temp file rather than removing it as the running binary is locked. Fixes issue #2248.
2021-08-23 17:21:09 +00:00
Bugfix: Support self-update on Windows
Restic self-update would fail in situations where the operating system
locks running binaries, including Windows. The new behavior works around
this by renaming the running file and swapping the updated file in place.
https://github.com/restic/restic/issues/2248
https://github.com/restic/restic/pull/3675
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