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Changelog for restic 0.12.0 (2021-02-14)
=======================================
The following sections list the changes in restic 0.12.0 relevant to
restic users. The changes are ordered by importance.
Summary
-------
* Fix #1681: Make `mount` not create missing mount point directory
* Fix #1800: Ignore `no data available` filesystem error during backup
* Fix #2563: Report the correct owner of directories in FUSE mounts
* Fix #2688: Make `backup` and `tag` commands separate tags by comma
* Fix #2739: Make the `cat` command respect the `--no-lock` option
* Fix #3087: The `--use-fs-snapshot` option now works on windows/386
* Fix #3100: Do not require gs bucket permissions when running `init`
* Fix #3111: Correctly detect output redirection for `backup` command on Windows
* Fix #3151: Don't create invalid snapshots when `backup` is interrupted
* Fix #3166: Improve error handling in the `restore` command
* Fix #3232: Correct statistics for overlapping targets
* Fix #3014: Fix sporadic stream reset between rclone and restic
* Fix #3152: Do not hang until foregrounded when completed in background
* Fix #3249: Improve error handling in `gs` backend
* Chg #3095: Deleting files on Google Drive now moves them to the trash
* Enh #2186: Allow specifying percentage in `check --read-data-subset`
* Enh #2453: Report permanent/fatal backend errors earlier
* Enh #2528: Add Alibaba/Aliyun OSS support in the `s3` backend
* Enh #2706: Configurable progress reports for non-interactive terminals
* Enh #2944: Add `backup` options `--files-from-{verbatim,raw}`
* Enh #3083: Allow usage of deprecated S3 `ListObjects` API
* Enh #3147: Support additional environment variables for Swift authentication
* Enh #3191: Add release binaries for MIPS architectures
* Enh #909: Back up mountpoints as empty directories
* Enh #3250: Add several more error checks
* Enh #2718: Improve `prune` performance and make it more customizable
* Enh #2495: Add option to let `backup` trust mtime without checking ctime
* Enh #2941: Speed up the repacking step of the `prune` command
* Enh #3006: Speed up the `rebuild-index` command
* Enh #3048: Add more checks for index and pack files in the `check` command
* Enh #2433: Make the `dump` command support `zip` format
* Enh #3099: Reduce memory usage of `check` command
* Enh #3106: Parallelize scan of snapshot content in `copy` and `prune`
* Enh #3130: Parallelize reading of locks and snapshots
* Enh #3254: Enable HTTP/2 for backend connections
Details
-------
* Bugfix #1681: Make `mount` not create missing mount point directory
When specifying a non-existent directory as mount point for the `mount` command, restic used
to create the specified directory automatically.
This has now changed such that restic instead gives an error when the specified directory for
the mount point does not exist.
https://github.com/restic/restic/issues/1681
https://github.com/restic/restic/pull/3008
* Bugfix #1800: Ignore `no data available` filesystem error during backup
Restic was unable to backup files on some filesystems, for example certain configurations of
CIFS on Linux which return a `no data available` error when reading extended attributes. These
errors are now ignored.
https://github.com/restic/restic/issues/1800
https://github.com/restic/restic/pull/3034
* Bugfix #2563: Report the correct owner of directories in FUSE mounts
Restic 0.10.0 changed the FUSE mount to always report the current user as the owner of
directories within the FUSE mount, which is incorrect.
This is now changed back to reporting the correct owner of a directory.
https://github.com/restic/restic/issues/2563
https://github.com/restic/restic/pull/3141
* Bugfix #2688: Make `backup` and `tag` commands separate tags by comma
Running `restic backup --tag foo,bar` previously created snapshots with one single tag
containing a comma (`foo,bar`) instead of two tags (`foo`, `bar`).
Similarly, the `tag` command's `--set`, `--add` and `--remove` options would treat
`foo,bar` as one tag instead of two tags. This was inconsistent with other commands and often
unexpected when one intended `foo,bar` to mean two tags.
To be consistent in all commands, restic now interprets `foo,bar` to mean two separate tags
(`foo` and `bar`) instead of one tag (`foo,bar`) everywhere, including in the `backup` and
`tag` commands.
NOTE: This change might result in unexpected behavior in cases where you use the `forget`
command and filter on tags like `foo,bar`. Snapshots previously backed up with `--tag
foo,bar` will still not match that filter, but snapshots saved from now on will match that
filter.
To replace `foo,bar` tags with `foo` and `bar` tags in old snapshots, you can first generate a
list of the relevant snapshots using a command like:
Restic snapshots --json --quiet | jq '.[] | select(contains({tags: ["foo,bar"]})) | .id'
And then use `restic tag --set foo --set bar snapshotID [...]` to set the new tags. Please adjust
the commands to include real tag names and any additional tags, as well as the list of snapshots
to process.
https://github.com/restic/restic/issues/2688
https://github.com/restic/restic/pull/2690
https://github.com/restic/restic/pull/3197
* Bugfix #2739: Make the `cat` command respect the `--no-lock` option
The `cat` command would not respect the `--no-lock` flag. This is now fixed.
https://github.com/restic/restic/issues/2739
* Bugfix #3087: The `--use-fs-snapshot` option now works on windows/386
Restic failed to create VSS snapshots on windows/386 with the following error:
GetSnapshotProperties() failed: E_INVALIDARG (0x80070057)
This is now fixed.
https://github.com/restic/restic/issues/3087
https://github.com/restic/restic/pull/3090
* Bugfix #3100: Do not require gs bucket permissions when running `init`
Restic used to require bucket level permissions for the `gs` backend in order to initialize a
restic repository.
It now allows a `gs` service account to initialize a repository if the bucket does exist and the
service account has permissions to write/read to that bucket.
https://github.com/restic/restic/issues/3100
* Bugfix #3111: Correctly detect output redirection for `backup` command on Windows
On Windows, since restic 0.10.0 the `backup` command did not properly detect when the output
was redirected to a file. This caused restic to output terminal control characters. This has
been fixed by correcting the terminal detection.
https://github.com/restic/restic/issues/3111
https://github.com/restic/restic/pull/3150
* Bugfix #3151: Don't create invalid snapshots when `backup` is interrupted
When canceling a backup run at a certain moment it was possible that restic created a snapshot
with an invalid "null" tree. This caused `check` and other operations to fail. The `backup`
command now properly handles interruptions and never saves a snapshot when interrupted.
https://github.com/restic/restic/issues/3151
https://github.com/restic/restic/pull/3164
* Bugfix #3166: Improve error handling in the `restore` command
The `restore` command used to not print errors while downloading file contents from the
repository. It also incorrectly exited with a zero error code even when there were errors
during the restore process. This has all been fixed and `restore` now returns with a non-zero
exit code when there's an error.
https://github.com/restic/restic/issues/3166
https://github.com/restic/restic/pull/3207
* Bugfix #3232: Correct statistics for overlapping targets
A user reported that restic's statistics and progress information during backup was not
correctly calculated when the backup targets (files/dirs to save) overlap. For example,
consider a directory `foo` which contains (among others) a file `foo/bar`. When `restic
backup foo foo/bar` was run, restic counted the size of the file `foo/bar` twice, so the
completeness percentage as well as the number of files was wrong. This is now corrected.
https://github.com/restic/restic/issues/3232
https://github.com/restic/restic/pull/3243
* Bugfix #3014: Fix sporadic stream reset between rclone and restic
Sometimes when using restic with the `rclone` backend, an error message similar to the
following would be printed:
Didn't finish writing GET request (wrote 0/xxx): http2: stream closed
It was found that this was caused by restic closing the connection to rclone to soon when
downloading data. A workaround has been added which waits for the end of the download before
closing the connection.
https://github.com/rclone/rclone/issues/2598
https://github.com/restic/restic/pull/3014
* Bugfix #3152: Do not hang until foregrounded when completed in background
On Linux, when running in the background restic failed to stop the terminal output of the
`backup` command after it had completed. This caused restic to hang until moved to the
foreground. This has now been fixed.
https://github.com/restic/restic/pull/3152
https://forum.restic.net/t/restic-alpine-container-cron-hangs-epoll-pwait/3334
* Bugfix #3249: Improve error handling in `gs` backend
The `gs` backend did not notice when the last step of completing a file upload failed. Under rare
circumstances, this could cause missing files in the backup repository. This has now been
fixed.
https://github.com/restic/restic/pull/3249
* Change #3095: Deleting files on Google Drive now moves them to the trash
When deleting files on Google Drive via the `rclone` backend, restic used to bypass the trash
folder required that one used the `-o rclone.args` option to enable usage of the trash folder.
This ensured that deleted files in Google Drive were not kept indefinitely in the trash folder.
However, since Google Drive's trash retention policy changed to deleting trashed files after
30 days, this is no longer needed.
Restic now leaves it up to rclone and its configuration to use or not use the trash folder when
deleting files. The default is to use the trash folder, as of rclone 1.53.2. To re-enable the
restic 0.11 behavior, set the `RCLONE_DRIVE_USE_TRASH` environment variable or change the
rclone configuration. See the rclone documentation for more details.
https://github.com/restic/restic/issues/3095
https://github.com/restic/restic/pull/3102
* Enhancement #2186: Allow specifying percentage in `check --read-data-subset`
We've enhanced the `check` command's `--read-data-subset` option to also accept a
percentage (e.g. `2.5%` or `10%`). This will check the given percentage of pack files (which
are randomly selected on each run).
https://github.com/restic/restic/issues/2186
https://github.com/restic/restic/pull/3038
* Enhancement #2453: Report permanent/fatal backend errors earlier
When encountering errors in reading from or writing to storage backends, restic retries the
failing operation up to nine times (for a total of ten attempts). It used to retry all backend
operations, but now detects some permanent error conditions so that it can report fatal errors
earlier.
Permanent failures include local disks being full, SSH connections dropping and permission
errors.
https://github.com/restic/restic/issues/2453
https://github.com/restic/restic/issues/3180
https://github.com/restic/restic/pull/3170
https://github.com/restic/restic/pull/3181
* Enhancement #2528: Add Alibaba/Aliyun OSS support in the `s3` backend
A new extended option `s3.bucket-lookup` has been added to support Alibaba/Aliyun OSS in the
`s3` backend. The option can be set to one of the following values:
- `auto` - Existing behaviour - `dns` - Use DNS style bucket access - `path` - Use path style
bucket access
To make the `s3` backend work with Alibaba/Aliyun OSS you must set `s3.bucket-lookup` to `dns`
and set the `s3.region` parameter. For example:
Restic -o s3.bucket-lookup=dns -o s3.region=oss-eu-west-1 -r
s3:https://oss-eu-west-1.aliyuncs.com/bucketname init
Note that `s3.region` must be set, otherwise the MinIO SDK tries to look it up and it seems that
Alibaba doesn't support that properly.
https://github.com/restic/restic/issues/2528
https://github.com/restic/restic/pull/2535
* Enhancement #2706: Configurable progress reports for non-interactive terminals
The `backup`, `check` and `prune` commands never printed any progress reports on
non-interactive terminals. This behavior is now configurable using the
`RESTIC_PROGRESS_FPS` environment variable. Use for example a value of `1` for an update
every second, or `0.01666` for an update every minute.
The `backup` command now also prints the current progress when restic receives a `SIGUSR1`
signal.
Setting the `RESTIC_PROGRESS_FPS` environment variable or sending a `SIGUSR1` signal
prints a status report even when `--quiet` was specified.
https://github.com/restic/restic/issues/2706
https://github.com/restic/restic/issues/3194
https://github.com/restic/restic/pull/3199
* Enhancement #2944: Add `backup` options `--files-from-{verbatim,raw}`
The new `backup` options `--files-from-verbatim` and `--files-from-raw` read a list of
files to back up from a file. Unlike the existing `--files-from` option, these options do not
interpret the listed filenames as glob patterns; instead, whitespace in filenames is
preserved as-is and no pattern expansion is done. Please see the documentation for specifics.
These new options are highly recommended over `--files-from`, when using a script to generate
the list of files to back up.
https://github.com/restic/restic/issues/2944
https://github.com/restic/restic/issues/3013
* Enhancement #3083: Allow usage of deprecated S3 `ListObjects` API
Some S3 API implementations, e.g. Ceph before version 14.2.5, have a broken `ListObjectsV2`
implementation which causes problems for restic when using their API endpoints. When a broken
server implementation is used, restic prints errors similar to the following:
List() returned error: Truncated response should have continuation token set
As a temporary workaround, restic now allows using the older `ListObjects` endpoint by
setting the `s3.list-objects-v1` extended option, for instance:
Restic -o s3.list-objects-v1=true snapshots
Please note that this option may be removed in future versions of restic.
https://github.com/restic/restic/issues/3083
https://github.com/restic/restic/pull/3085
* Enhancement #3147: Support additional environment variables for Swift authentication
The `swift` backend now supports the following additional environment variables for passing
authentication details to restic: `OS_USER_ID`, `OS_USER_DOMAIN_ID`,
`OS_PROJECT_DOMAIN_ID` and `OS_TRUST_ID`
Depending on the `openrc` configuration file these might be required when the user and project
domains differ from one another.
https://github.com/restic/restic/issues/3147
https://github.com/restic/restic/pull/3158
* Enhancement #3191: Add release binaries for MIPS architectures
We've added a few new architectures for Linux to the release binaries: `mips`, `mipsle`,
`mips64`, and `mip64le`. MIPS is mostly used for low-end embedded systems.
https://github.com/restic/restic/issues/3191
https://github.com/restic/restic/pull/3208
* Enhancement #909: Back up mountpoints as empty directories
When the `--one-file-system` option is specified to `restic backup`, it ignores all file
systems mounted below one of the target directories. This means that when a snapshot is
restored, users needed to manually recreate the mountpoint directories.
Restic now backs up mountpoints as empty directories and therefore implements the same
approach as `tar`.
https://github.com/restic/restic/issues/909
https://github.com/restic/restic/pull/3119
* Enhancement #3250: Add several more error checks
We've added a lot more error checks in places where errors were previously ignored (as hinted by
the static analysis program `errcheck` via `golangci-lint`).
https://github.com/restic/restic/pull/3250
* Enhancement #2718: Improve `prune` performance and make it more customizable
The `prune` command is now much faster. This is especially the case for remote repositories or
repositories with not much data to remove. Also the memory usage of the `prune` command is now
reduced.
Restic used to rebuild the index from scratch after pruning. This could lead to missing packs in
the index in some cases for eventually consistent backends such as e.g. AWS S3. This behavior is
now changed and the index rebuilding uses the information already known by `prune`.
By default, the `prune` command no longer removes all unused data. This behavior can be
fine-tuned by new options, like the acceptable amount of unused space or the maximum size of
data to reorganize. For more details, please see
https://restic.readthedocs.io/en/stable/060_forget.html .
Moreover, `prune` now accepts the `--dry-run` option and also running `forget --dry-run
--prune` will show what `prune` would do.
This enhancement also fixes several open issues, e.g.: -
https://github.com/restic/restic/issues/1140 -
https://github.com/restic/restic/issues/1599 -
https://github.com/restic/restic/issues/1985 -
https://github.com/restic/restic/issues/2112 -
https://github.com/restic/restic/issues/2227 -
https://github.com/restic/restic/issues/2305
https://github.com/restic/restic/pull/2718
https://github.com/restic/restic/pull/2842
* Enhancement #2495: Add option to let `backup` trust mtime without checking ctime
The `backup` command used to require that both `ctime` and `mtime` of a file matched with a
previously backed up version to determine that the file was unchanged. In other words, if
either `ctime` or `mtime` of the file had changed, it would be considered changed and restic
would read the file's content again to back up the relevant (changed) parts of it.
The new option `--ignore-ctime` makes restic look at `mtime` only, such that `ctime` changes
for a file does not cause restic to read the file's contents again.
The check for both `ctime` and `mtime` was introduced in restic 0.9.6 to make backups more
reliable in the face of programs that reset `mtime` (some Unix archivers do that), but it turned
out to often be expensive because it made restic read file contents even if only the metadata
(owner, permissions) of a file had changed. The new `--ignore-ctime` option lets the user
restore the 0.9.5 behavior when needed. The existing `--ignore-inode` option already turned
off this behavior, but also removed a different check.
Please note that changes in files' metadata are still recorded, regardless of the command line
options provided to the backup command.
https://github.com/restic/restic/issues/2495
https://github.com/restic/restic/issues/2558
https://github.com/restic/restic/issues/2819
https://github.com/restic/restic/pull/2823
* Enhancement #2941: Speed up the repacking step of the `prune` command
The repack step of the `prune` command, which moves still used file parts into new pack files
such that the old ones can be garbage collected later on, now processes multiple pack files in
parallel. This is especially beneficial for high latency backends or when using a fast network
connection.
https://github.com/restic/restic/pull/2941
* Enhancement #3006: Speed up the `rebuild-index` command
We've optimized the `rebuild-index` command. Now, existing index entries are used to
minimize the number of pack files that must be read. This speeds up the index rebuild a lot.
Additionally, the option `--read-all-packs` has been added, implementing the previous
behavior.
https://github.com/restic/restic/pull/3006
https://github.com/restic/restic/issue/2547
* Enhancement #3048: Add more checks for index and pack files in the `check` command
The `check` command run with the `--read-data` or `--read-data-subset` options used to only
verify only the pack file content - it did not check if the blobs within the pack are correctly
contained in the index.
A check for the latter is now in place, which can print the following error:
Blob ID is not contained in index or position is incorrect
Another test is also added, which compares pack file sizes computed from the index and the pack
header with the actual file size. This test is able to detect truncated pack files.
If the index is not correct, it can be rebuilt by using the `rebuild-index` command.
Having added these tests, `restic check` is now able to detect non-existing blobs which are
wrongly referenced in the index. This situation could have lead to missing data.
https://github.com/restic/restic/pull/3048
https://github.com/restic/restic/pull/3082
* Enhancement #2433: Make the `dump` command support `zip` format
Previously, restic could dump the contents of a whole folder structure only in the `tar`
format. The `dump` command now has a new flag to change output format to `zip`. Just pass
`--archive zip` as an option to `restic dump`.
https://github.com/restic/restic/pull/2433
https://github.com/restic/restic/pull/3081
* Enhancement #3099: Reduce memory usage of `check` command
The `check` command now requires less memory if it is run without the `--check-unused` option.
https://github.com/restic/restic/pull/3099
* Enhancement #3106: Parallelize scan of snapshot content in `copy` and `prune`
The `copy` and `prune` commands used to traverse the directories of snapshots one by one to find
used data. This snapshot traversal is now parallized which can speed up this step several
times.
In addition the `check` command now reports how many snapshots have already been processed.
https://github.com/restic/restic/pull/3106
* Enhancement #3130: Parallelize reading of locks and snapshots
Restic used to read snapshots sequentially. For repositories containing many snapshots this
slowed down commands which have to read all snapshots.
Now the reading of snapshots is parallelized. This speeds up for example `prune`, `backup` and
other commands that search for snapshots with certain properties or which have to find the
`latest` snapshot.
The speed up also applies to locks stored in the backup repository.
https://github.com/restic/restic/pull/3130
https://github.com/restic/restic/pull/3174
* Enhancement #3254: Enable HTTP/2 for backend connections
Go's HTTP library usually automatically chooses between HTTP/1.x and HTTP/2 depending on
what the server supports. But for compatibility this mechanism is disabled if DialContext is
used (which is the case for restic). This change allows restic's HTTP client to negotiate
HTTP/2 if supported by the server.
https://github.com/restic/restic/pull/3254
Changelog for restic 0.11.0 (2020-11-05)
=======================================