If an error occurred while streaming a pack file, this could result in
passing some of the blobs multiple times to the callback function. This
significantly complicates using StreamPack correctly and is unnecessary.
Retries do not change the content of a blob and thus only deliver the
same result over and over again.
This change better resembles the output generated by `Snapshot.String()`,
which includes both username and hostname.
Closes#4506
Before:
```
$ restic copy --from-repo /srv/restic-repo
repository 3666882b opened (version 2, compression level auto)
repository 0085c387 opened (version 2, compression level auto)
created new cache in /home/mike/.cache/restic
[0:00] 100.00% 1 / 1 index files loaded
[0:00] 0 index files loaded
snapshot 32b39a20 of [/home/mike/data] at 2023-10-21 16:01:13.979948154 -0300 -03)
copy started, this may take a while...
[0:00] 100.00% 1 / 1 packs copied
snapshot 10331fdd saved
```
After:
```
$ restic copy --from-repo /srv/restic-repo
repository 3666882b opened (version 2, compression level auto)
repository 0085c387 opened (version 2, compression level auto)
[0:00] 100.00% 1 / 1 index files loaded
[0:00] 0 index files loaded
snapshot 32b39a20 of [/home/mike/data] at 2023-10-21 16:01:13.979948154 -0300 -03 by mike@desktop)
copy started, this may take a while...
[0:00] 100.00% 1 / 1 packs copied
snapshot a67bd1ee saved
```
This introduces a new modifier to the output of the diff command. It
appears whenever two files being compared only differ in their content
but not in their metadata. As far as we know, under normal
circumstances, this should only ever happen if some kind of bitrot has
happened in the source file. The prerequisite for this detection to work
is that the right-side snapshot of the comparison has been created with
"backup --force".
Since Go 1.21, most reparse points are considered as irregular files.
Depending on the underlying driver these can exhibit nearly arbitrary
behavior. When encountering such a file, restic returned an
indecipherable error message: `error: invalid node type ""`.
Add the filepath to the error message and state that the file type is
not supported.
Adds
* snapshotMetadataArgs, which holds the new metadata as strings parsed from
the command line
* snapshotMetadata, which holds the new metadata converted to the
correct types
Bug #1681 suggests that restic should not be nice to user and should
refrain from creating a mountpoint if it does not exist. Nevertheless,
it currently opens the repository before checking for the mountpoint's
existence. In the case of large or remote repositories, this process
can be time-consuming, delaying the inevitable outcome.
/restic mount --repo=REMOTE --verbose /tmp/backup
repository 33f14e42 opened (version 2, compression level max)
[0:38] 100.00% 162 / 162 index files loaded
Mountpoint /tmp/backup doesn't exist
stat /tmp/backup: no such file or directory
real 0m39.534s
user 1m53.961s
sys 0m3.044s
In this scenario, 40 seconds could have been saved if the nonexistence
of the path had been verified beforehand.
This patch relocates the mountpoint check to the beginning of the
runMount function, preceding the opening of the repository.
/restic mount --repo=REMOTE --verbose /tmp/backup
Mountpoint /tmp/backup doesn't exist
stat /tmp/backup: no such file or directory
real 0m0.136s
user 0m0.018s
sys 0m0.027s
Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
