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17 lines
847 B
Text
17 lines
847 B
Text
It uses a temporary file in the same directory as the given path. This ensures
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that the temporary file resides on the same filesystem.
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The temporary file will then be atomically moved to the target location: On
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POSIX, it will use rename if files should be overwritten, otherwise a
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combination of link and unlink. On Windows, it uses MoveFileEx through
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stdlib’s ctypes with the appropriate flags.
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Note that with link and unlink, there’s a timewindow where the file might be
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available under two entries in the filesystem: The name of the temporary file,
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and the name of the target file.
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Also note that the permissions of the target file may change this way. In some
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situations a chmod can be issued without any concurrency problems, but since
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that is not always the case, this library doesn’t do it by itself.
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Optional dependency: python3
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