Add rclone backend

internal/backend/rclone/backend_test.go

@@ -0,0 +1,83 @@
+package rclone_test
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/restic/restic/internal/backend/rclone"
+	"github.com/restic/restic/internal/backend/test"
+	"github.com/restic/restic/internal/restic"
+	rtest "github.com/restic/restic/internal/test"
+)
+
+const rcloneConfig = `
+[local]
+type = local
+`
+
+func newTestSuite(t testing.TB) *test.Suite {
+	dir, cleanup := rtest.TempDir(t)
+
+	return &test.Suite{
+		// NewConfig returns a config for a new temporary backend that will be used in tests.
+		NewConfig: func() (interface{}, error) {
+			cfgfile := filepath.Join(dir, "rclone.conf")
+			t.Logf("write rclone config to %v", cfgfile)
+			err := ioutil.WriteFile(cfgfile, []byte(rcloneConfig), 0644)
+			if err != nil {
+				return nil, err
+			}
+
+			t.Logf("use backend at %v", dir)
+
+			repodir := filepath.Join(dir, "repo")
+			err = os.Mkdir(repodir, 0755)
+			if err != nil {
+				return nil, err
+			}
+
+			cfg := rclone.NewConfig()
+			cfg.Program = fmt.Sprintf("rclone --config %q", cfgfile)
+			cfg.Remote = "local:" + repodir
+			return cfg, nil
+		},
+
+		// CreateFn is a function that creates a temporary repository for the tests.
+		Create: func(config interface{}) (restic.Backend, error) {
+			t.Logf("Create()")
+			cfg := config.(rclone.Config)
+			return rclone.Create(cfg)
+		},
+
+		// OpenFn is a function that opens a previously created temporary repository.
+		Open: func(config interface{}) (restic.Backend, error) {
+			t.Logf("Open()")
+			cfg := config.(rclone.Config)
+			return rclone.Open(cfg)
+		},
+
+		// CleanupFn removes data created during the tests.
+		Cleanup: func(config interface{}) error {
+			t.Logf("cleanup dir %v", dir)
+			cleanup()
+			return nil
+		},
+	}
+}
+
+func TestBackendRclone(t *testing.T) {
+	defer func() {
+		if t.Skipped() {
+			rtest.SkipDisallowed(t, "restic/backend/rclone.TestBackendRclone")
+		}
+	}()
+
+	newTestSuite(t).RunTests(t)
+}
+
+func BenchmarkBackendREST(t *testing.B) {
+	newTestSuite(t).RunBenchmarks(t)
+}