annotate tests/test-dirstate-backup.t @ 34940:c2b30348930f stable

dirstate: clean up when restoring identical backups When a dirstate backup is restored, it is possible that no actual changes to the dirstate have been made. In this case, the backup is still a hardlink to the original dirstate. Unfortunately, `os.rename` silently fails (nothing happens, and no error occurs) when `src` and `dst` are hardlinks to the same file. As a result, the backup is left lying around. Over time, these files accumulate. When restoring dirstate backups, check if the backup and the dirstate are the same file, and if so, just delete the backup. Differential Revision: https://phab.mercurial-scm.org/D1201
author Mark Thomas <mbthomas@fb.com>
date Fri, 20 Oct 2017 05:53:35 -0700
parents 2c80a864e83e
children 8d72e29ad1e0
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1 Set up
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3 $ hg init repo
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4 $ cd repo
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6 Try to import an empty patch
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8 $ hg import --no-commit - <<EOF
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9 > EOF
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10 applying patch from stdin
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11 abort: stdin: no diffs found
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14 No dirstate backups are left behind
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16 $ ls .hg/dirstate* | sort
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17 .hg/dirstate
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