The maximum for `--verbose=n` is n=2. Internally it is translated into a
scale from 0 to 3. However, the default (without verbose) is 1, thus the
verbosity level can only be increased two times.
Only the repacking of *un*compressed packs reduces the amount of
uncompressed data. Previously the counter even overflowed for fully
compressed repositories.
Commands should use the normal shutdown path. In addition, the Exitf
function was only used by `dump` and `restore` but not any other command
which introduces the risk of inconsistent behavior.
When reporting an error for a tree, the output message can overlap with
the progress bar output, e.g. `error for tree e91ef6fb:napshots`.
The fix only applies for this specific message and does not work on
Windows.
Revert what seems to be a typo introduced as part of the fix for #2041
in 2018 7d0f2eaf24.
`xbuild` does not look like a go build/tag keyword to me, I failed to
find documentation for it and using `go install -tags '!selfupdate' ...`
has no effect, i.e. self-update code is still compiled.
`+build` however works; updating the OpenBSD port/binary package
security/restic to apply this PR works as expected:
```
$ restic help | grep self
$ restic self-update
unknown command "self-update" for "restic"
```
(Using `go:build` now as per restic's style and gofmt.)
Previously, using `restic-0.14.0p1` on OpenBSD/amd64 7.2-current would
check for a newer version and probably attempt replacing the system wide
root-owned executable (on a read-only filesystem) as unprivileged user:
```
$ restic version
restic 0.14.0 compiled with go1.19.2 on openbsd/amd64
$ restic help | grep self
self-update Update the restic binary
$ restic self-update
writing restic to /usr/local/bin/restic
find latest release of restic at GitHub
restic is up to date
```
(It never tried to actually write besaid path; doing so would fail, so
the current message can be considered misleading.)
The scanner process has only cosmetic effect for the progress printer,
and can be disabled without impacting functionality when the user does
not need an estimate of completion.
In many cases the scanner process can provide beneficial priming of
the file system cache, so as general advice it should not be disabled.
However, tests have shown that backup of NFS and fuse based filesystems,
where stat(2) is relatively expensive, can be significantly faster
without the scanner.
The Original field is meant to remember the original snapshot id if e.g.
changing its tags. It was only set by the `rewrite` command if it was
not set previously. However, a rewritten snapshot is potentially rather
different from the original snapshot. Thus just always set the Original
field. This also makes it easier to later on detect and potentially
remove the original snapshots.
The ioutil functions are deprecated since Go 1.17 and only wrap another
library function. Thus directly call the underlying function.
This commit only mechanically replaces the function calls.
The old check did not consider files containing case insensitive
excludes. The check is now implemented as a function of the
excludePatternOptions struct to improve cohesion.
The test did not wait for the mount command to fully shutdown all
running goroutines. This caused the go race detector to report a data
race related to lock refreshes.
==================
WARNING: DATA RACE
Write at 0x0000021bdfdb by goroutine 667:
github.com/restic/restic/internal/backend/retry.TestFastRetries()
/restic/restic/internal/backend/retry/testing.go:7 +0x18f
github.com/restic/restic/cmd/restic.withTestEnvironment()
/restic/restic/cmd/restic/integration_helpers_test.go:175 +0x183
github.com/restic/restic/cmd/restic.TestMountSameTimestamps()
/restic/restic/cmd/restic/integration_fuse_test.go:202 +0xac
testing.tRunner()
/usr/lib/go/src/testing/testing.go:1446 +0x216
testing.(*T).Run.func1()
/usr/lib/go/src/testing/testing.go:1493 +0x47
Previous read at 0x0000021bdfdb by goroutine 609:
github.com/restic/restic/internal/backend/retry.(*Backend).retry()
/restic/restic/internal/backend/retry/backend_retry.go:72 +0x9e
github.com/restic/restic/internal/backend/retry.(*Backend).Remove()
/restic/restic/internal/backend/retry/backend_retry.go:149 +0x17d
github.com/restic/restic/internal/cache.(*Backend).Remove()
/restic/restic/internal/cache/backend.go:38 +0x11d
github.com/restic/restic/internal/restic.(*Lock).Unlock()
/restic/restic/internal/restic/lock.go:190 +0x249
github.com/restic/restic/cmd/restic.refreshLocks.func1()
/restic/restic/cmd/restic/lock.go:86 +0xae
runtime.deferreturn()
/usr/lib/go/src/runtime/panic.go:476 +0x32
github.com/restic/restic/cmd/restic.lockRepository.func2()
/restic/restic/cmd/restic/lock.go:61 +0x71
[...]
Goroutine 609 (finished) created at:
github.com/restic/restic/cmd/restic.lockRepository()
/restic/restic/cmd/restic/lock.go:61 +0x488
github.com/restic/restic/cmd/restic.lockRepo()
/restic/restic/cmd/restic/lock.go:25 +0x219
github.com/restic/restic/cmd/restic.runMount()
/restic/restic/cmd/restic/cmd_mount.go:126 +0x1f8
github.com/restic/restic/cmd/restic.testRunMount()
/restic/restic/cmd/restic/integration_fuse_test.go:61 +0x1ce
github.com/restic/restic/cmd/restic.checkSnapshots.func1()
/restic/restic/cmd/restic/integration_fuse_test.go:90 +0x124
==================
Counting the first occurrence of a duplicate blob as used and counting
all other as duplicates, independent of which instance of the blob is
kept, is only accurate if all copies of the blob have the same size. This
is no longer the case for a repository containing both compressed and
uncompressed blobs.
Thus for duplicated blobs first count all instances as duplicates and
then subtract the actually used instance later on.
As long as only a small fraction of the data in a repository is
rewritten, the keepBlobs set will be rather small after cleaning it up.
As golang maps do not shrink their memory usage, just copy the contents
over to a new map. However, only copy the map if the cleanup removed at
least half the entries.
The set covers necessary, existing and duplicate blobs. This removes the
duplicate sets used to track whether all necessary blobs also exist.
This reduces the memory usage of prune by about 20-30%.
The RetryBackend tests depend on the mock backend. When the Backend
interface is eventually split from the restic package, this will lead to
a dependency cycle between backend and backend/mock. Thus split the
RetryBackend into a separate package to avoid this problem.
The comparison of the current time and the last lock refresh were using
seconds represented as integers. As the test only waits for up to one
second, the associated number truncation can cause the test to take
longer than once second and thus to fail.
Switch to nanoseconds to avoid this problem. This also slightly speeds
up the test.
FindFilteredSnapshots no longer prints errors during snapshot loading on
stderr, but instead passes the error to the callback to allow the caller
to decide on what to do.
In addition, it moves the logic to handle an explicit snapshot list from
the main package to restic.
