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
==================
Previously the global context was either accessed via gopts.ctx,
stored in a local variable and then used within that function or
sometimes both. This makes it very hard to follow which ctx or a wrapped
version of it reaches which method.
Thus just drop the context from the globalOptions struct and pass it
explicitly to every command line handler method.
As an exception prune is still allowed to load the index before
snapshots, as it uses exclusive locks. In case of problems with locking
it is also better to load snapshots created after loading the index, as
this will lead to a prune sanity check failure instead of a broken snapshot.
Switch from a function passed as a parameter to a cleanup function,
which is also executed when the test function panics, so no temporary
directories are left behind.
Before, the fuse integration test was run and the tests were never
finished, because the testing code did not detect any errors when the
fusermount binary returned an error. This commit fixes it.
Since backend.ID is always a slice of constant length, use an array
instead of a slice. Mostly, arrays behave as slices, except that an
array cannot be nil, so use `*backend.ID` insteaf of `backend.ID` in
places where the absence of an ID is possible (e.g. for the Subtree of a
Node, which may not present when the node is a file node).
This change allows to directly use backend.ID as the the key for a map,
so that arbitrary data structures (e.g. a Set implemented as a
map[backend.ID]struct{}) can easily be formed.