Merge pull request #2970 from labkode/fopenskip

Skip fopen for file change check to avoid network penalty
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MichaelEischer authored and GitHub committed 2020-10-09 11:43:54 +02:00
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Enhancement: Optimize check for unchanged files during backup
During a backup restic skips processing files which have not changed since the last backup run.
Previously this required opening each file once which can be slow on network filesystems. The
backup command now checks for file changes before opening a file. This considerably reduces
the time to create a backup on network filesystems.
https://github.com/restic/restic/issues/2969
https://github.com/restic/restic/pull/2970