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44 lines
2.2 KiB
Plaintext
44 lines
2.2 KiB
Plaintext
Enhancement: Rework archiver code
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The core archiver code and the complementary code for the `backup` command was
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rewritten completely. This resolves very annoying issues such as 549. The first
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backup with this release of restic will likely result in all files being
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re-read locally, so it will take a lot longer. The next backup after that will
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be fast again.
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Basically, with the old code, restic took the last path component of each
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to-be-saved file or directory as the top-level file/directory within the
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snapshot. This meant that when called as `restic backup /home/user/foo`, the
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snapshot would contain the files in the directory `/home/user/foo` as `/foo`.
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This is not the case any more with the new archiver code. Now, restic works
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very similar to what `tar` does: When restic is called with an absolute path to
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save, then it'll preserve the directory structure within the snapshot. For the
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example above, the snapshot would contain the files in the directory within
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`/home/user/foo` in the snapshot. For relative directories, it only preserves
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the relative path components. So `restic backup user/foo` will save the files
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as `/user/foo` in the snapshot.
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While we were at it, the status display and notification system was completely
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rewritten. By default, restic now shows which files are currently read (unless
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`--quiet` is specified) in a multi-line status display.
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The `backup` command also gained a new option: `--verbose`. It can be specified
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once (which prints a bit more detail what restic is doing) or twice (which
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prints a line for each file/directory restic encountered, together with some
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statistics).
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Another issue that was resolved is the new code only reads two files at most.
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The old code would read way too many files in parallel, thereby slowing down
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the backup process on spinning discs a lot.
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https://github.com/restic/restic/issues/549
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https://github.com/restic/restic/issues/1286
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https://github.com/restic/restic/issues/446
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https://github.com/restic/restic/issues/1344
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https://github.com/restic/restic/issues/1416
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https://github.com/restic/restic/issues/1456
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https://github.com/restic/restic/issues/1145
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https://github.com/restic/restic/issues/1160
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https://github.com/restic/restic/pull/1494
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