mirror of
https://github.com/octoleo/restic.git
synced 2024-12-21 02:19:04 +00:00
454 lines
11 KiB
Go
454 lines
11 KiB
Go
package walker
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/restic/restic/internal/restic"
|
|
)
|
|
|
|
// TestTree is used to construct a list of trees for testing the walker.
|
|
type TestTree map[string]interface{}
|
|
|
|
// TestFile is used to test the walker.
|
|
type TestFile struct {
|
|
Size uint64
|
|
}
|
|
|
|
func BuildTreeMap(tree TestTree) (m TreeMap, root restic.ID) {
|
|
m = TreeMap{}
|
|
id := buildTreeMap(tree, m)
|
|
return m, id
|
|
}
|
|
|
|
func buildTreeMap(tree TestTree, m TreeMap) restic.ID {
|
|
tb := restic.NewTreeJSONBuilder()
|
|
var names []string
|
|
for name := range tree {
|
|
names = append(names, name)
|
|
}
|
|
sort.Strings(names)
|
|
|
|
for _, name := range names {
|
|
item := tree[name]
|
|
switch elem := item.(type) {
|
|
case TestFile:
|
|
err := tb.AddNode(&restic.Node{
|
|
Name: name,
|
|
Type: "file",
|
|
Size: elem.Size,
|
|
})
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
case TestTree:
|
|
id := buildTreeMap(elem, m)
|
|
err := tb.AddNode(&restic.Node{
|
|
Name: name,
|
|
Subtree: &id,
|
|
Type: "dir",
|
|
})
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
default:
|
|
panic(fmt.Sprintf("invalid type %T", elem))
|
|
}
|
|
}
|
|
|
|
buf, err := tb.Finalize()
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
id := restic.Hash(buf)
|
|
|
|
if _, ok := m[id]; !ok {
|
|
m[id] = buf
|
|
}
|
|
|
|
return id
|
|
}
|
|
|
|
// TreeMap returns the trees from the map on LoadTree.
|
|
type TreeMap map[restic.ID][]byte
|
|
|
|
func (t TreeMap) LoadBlob(_ context.Context, tpe restic.BlobType, id restic.ID, _ []byte) ([]byte, error) {
|
|
if tpe != restic.TreeBlob {
|
|
return nil, errors.New("can only load trees")
|
|
}
|
|
tree, ok := t[id]
|
|
if !ok {
|
|
return nil, errors.New("tree not found")
|
|
}
|
|
return tree, nil
|
|
}
|
|
|
|
func (t TreeMap) Connections() uint {
|
|
return 2
|
|
}
|
|
|
|
// checkFunc returns a function suitable for walking the tree to check
|
|
// something, and a function which will check the final result.
|
|
type checkFunc func(t testing.TB) (walker WalkFunc, leaveDir func(path string), final func(testing.TB))
|
|
|
|
// checkItemOrder ensures that the order of the 'path' arguments is the one passed in as 'want'.
|
|
func checkItemOrder(want []string) checkFunc {
|
|
pos := 0
|
|
return func(t testing.TB) (walker WalkFunc, leaveDir func(path string), final func(testing.TB)) {
|
|
walker = func(treeID restic.ID, path string, node *restic.Node, err error) error {
|
|
if err != nil {
|
|
t.Errorf("error walking %v: %v", path, err)
|
|
return err
|
|
}
|
|
|
|
if pos >= len(want) {
|
|
t.Errorf("additional unexpected path found: %v", path)
|
|
return nil
|
|
}
|
|
|
|
if path != want[pos] {
|
|
t.Errorf("wrong path found, want %q, got %q", want[pos], path)
|
|
}
|
|
pos++
|
|
return nil
|
|
}
|
|
|
|
leaveDir = func(path string) {
|
|
_ = walker(restic.ID{}, "leave: "+path, nil, nil)
|
|
}
|
|
|
|
final = func(t testing.TB) {
|
|
if pos != len(want) {
|
|
t.Errorf("not enough items returned, want %d, got %d", len(want), pos)
|
|
}
|
|
}
|
|
|
|
return walker, leaveDir, final
|
|
}
|
|
}
|
|
|
|
// checkParentTreeOrder ensures that the order of the 'parentID' arguments is the one passed in as 'want'.
|
|
func checkParentTreeOrder(want []string) checkFunc {
|
|
pos := 0
|
|
return func(t testing.TB) (walker WalkFunc, leaveDir func(path string), final func(testing.TB)) {
|
|
walker = func(treeID restic.ID, path string, node *restic.Node, err error) error {
|
|
if err != nil {
|
|
t.Errorf("error walking %v: %v", path, err)
|
|
return err
|
|
}
|
|
|
|
if pos >= len(want) {
|
|
t.Errorf("additional unexpected parent tree ID found: %v", treeID)
|
|
return nil
|
|
}
|
|
|
|
if treeID.String() != want[pos] {
|
|
t.Errorf("wrong parent tree ID found, want %q, got %q", want[pos], treeID.String())
|
|
}
|
|
pos++
|
|
return nil
|
|
}
|
|
|
|
final = func(t testing.TB) {
|
|
if pos != len(want) {
|
|
t.Errorf("not enough items returned, want %d, got %d", len(want), pos)
|
|
}
|
|
}
|
|
|
|
return walker, nil, final
|
|
}
|
|
}
|
|
|
|
// checkSkipFor returns ErrSkipNode if path is in skipFor, it checks that the
|
|
// paths the walk func is called for are exactly the ones in wantPaths.
|
|
func checkSkipFor(skipFor map[string]struct{}, wantPaths []string) checkFunc {
|
|
var pos int
|
|
|
|
return func(t testing.TB) (walker WalkFunc, leaveDir func(path string), final func(testing.TB)) {
|
|
walker = func(treeID restic.ID, path string, node *restic.Node, err error) error {
|
|
if err != nil {
|
|
t.Errorf("error walking %v: %v", path, err)
|
|
return err
|
|
}
|
|
|
|
if pos >= len(wantPaths) {
|
|
t.Errorf("additional unexpected path found: %v", path)
|
|
return nil
|
|
}
|
|
|
|
if path != wantPaths[pos] {
|
|
t.Errorf("wrong path found, want %q, got %q", wantPaths[pos], path)
|
|
}
|
|
pos++
|
|
|
|
if _, ok := skipFor[path]; ok {
|
|
return ErrSkipNode
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
leaveDir = func(path string) {
|
|
_ = walker(restic.ID{}, "leave: "+path, nil, nil)
|
|
}
|
|
|
|
final = func(t testing.TB) {
|
|
if pos != len(wantPaths) {
|
|
t.Errorf("wrong number of paths returned, want %d, got %d", len(wantPaths), pos)
|
|
}
|
|
}
|
|
|
|
return walker, leaveDir, final
|
|
}
|
|
}
|
|
|
|
func TestWalker(t *testing.T) {
|
|
var tests = []struct {
|
|
tree TestTree
|
|
checks []checkFunc
|
|
}{
|
|
{
|
|
tree: TestTree{
|
|
"foo": TestFile{},
|
|
"subdir": TestTree{
|
|
"subfile": TestFile{},
|
|
},
|
|
},
|
|
checks: []checkFunc{
|
|
checkItemOrder([]string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir",
|
|
"/subdir/subfile",
|
|
"leave: /subdir",
|
|
"leave: /",
|
|
}),
|
|
checkParentTreeOrder([]string{
|
|
"a760536a8fd64dd63f8dd95d85d788d71fd1bee6828619350daf6959dcb499a0", // tree /
|
|
"a760536a8fd64dd63f8dd95d85d788d71fd1bee6828619350daf6959dcb499a0", // tree /
|
|
"a760536a8fd64dd63f8dd95d85d788d71fd1bee6828619350daf6959dcb499a0", // tree /
|
|
"670046b44353a89b7cd6ef84c78422232438f10eb225c29c07989ae05283d797", // tree /subdir
|
|
}),
|
|
checkSkipFor(
|
|
map[string]struct{}{
|
|
"/subdir": {},
|
|
}, []string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir",
|
|
"leave: /",
|
|
},
|
|
),
|
|
checkSkipFor(
|
|
map[string]struct{}{
|
|
"/": {},
|
|
}, []string{
|
|
"/",
|
|
},
|
|
),
|
|
},
|
|
},
|
|
{
|
|
tree: TestTree{
|
|
"foo": TestFile{},
|
|
"subdir1": TestTree{
|
|
"subfile1": TestFile{},
|
|
},
|
|
"subdir2": TestTree{
|
|
"subfile2": TestFile{},
|
|
"subsubdir2": TestTree{
|
|
"subsubfile3": TestFile{},
|
|
},
|
|
},
|
|
},
|
|
checks: []checkFunc{
|
|
checkItemOrder([]string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir1",
|
|
"/subdir1/subfile1",
|
|
"leave: /subdir1",
|
|
"/subdir2",
|
|
"/subdir2/subfile2",
|
|
"/subdir2/subsubdir2",
|
|
"/subdir2/subsubdir2/subsubfile3",
|
|
"leave: /subdir2/subsubdir2",
|
|
"leave: /subdir2",
|
|
"leave: /",
|
|
}),
|
|
checkParentTreeOrder([]string{
|
|
"7a0e59b986cc83167d9fbeeefc54e4629770124c5825d391f7ee0598667fcdf1", // tree /
|
|
"7a0e59b986cc83167d9fbeeefc54e4629770124c5825d391f7ee0598667fcdf1", // tree /
|
|
"7a0e59b986cc83167d9fbeeefc54e4629770124c5825d391f7ee0598667fcdf1", // tree /
|
|
"22c9feefa0b9fabc7ec5383c90cfe84ba714babbe4d2968fcb78f0ec7612e82f", // tree /subdir1
|
|
"7a0e59b986cc83167d9fbeeefc54e4629770124c5825d391f7ee0598667fcdf1", // tree /
|
|
"9bfe4aab3ac0ad7a81909355d7221801441fb20f7ed06c0142196b3f10358493", // tree /subdir2
|
|
"9bfe4aab3ac0ad7a81909355d7221801441fb20f7ed06c0142196b3f10358493", // tree /subdir2
|
|
"6b962fef064ef9beecc27dfcd6e0f2e7beeebc9c1f1f4f477d4af59fc45f411d", // tree /subdir2/subsubdir2
|
|
}),
|
|
checkSkipFor(
|
|
map[string]struct{}{
|
|
"/subdir1": {},
|
|
}, []string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir1",
|
|
"/subdir2",
|
|
"/subdir2/subfile2",
|
|
"/subdir2/subsubdir2",
|
|
"/subdir2/subsubdir2/subsubfile3",
|
|
"leave: /subdir2/subsubdir2",
|
|
"leave: /subdir2",
|
|
"leave: /",
|
|
},
|
|
),
|
|
checkSkipFor(
|
|
map[string]struct{}{
|
|
"/subdir1": {},
|
|
"/subdir2/subsubdir2": {},
|
|
}, []string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir1",
|
|
"/subdir2",
|
|
"/subdir2/subfile2",
|
|
"/subdir2/subsubdir2",
|
|
"leave: /subdir2",
|
|
"leave: /",
|
|
},
|
|
),
|
|
checkSkipFor(
|
|
map[string]struct{}{
|
|
"/foo": {},
|
|
}, []string{
|
|
"/",
|
|
"/foo",
|
|
"leave: /",
|
|
},
|
|
),
|
|
},
|
|
},
|
|
{
|
|
tree: TestTree{
|
|
"foo": TestFile{},
|
|
"subdir1": TestTree{
|
|
"subfile1": TestFile{},
|
|
"subfile2": TestFile{},
|
|
"subfile3": TestFile{},
|
|
},
|
|
"subdir2": TestTree{
|
|
"subfile1": TestFile{},
|
|
"subfile2": TestFile{},
|
|
"subfile3": TestFile{},
|
|
},
|
|
"subdir3": TestTree{
|
|
"subfile1": TestFile{},
|
|
"subfile2": TestFile{},
|
|
"subfile3": TestFile{},
|
|
},
|
|
"zzz other": TestFile{},
|
|
},
|
|
checks: []checkFunc{
|
|
checkItemOrder([]string{
|
|
"/",
|
|
"/foo",
|
|
"/subdir1",
|
|
"/subdir1/subfile1",
|
|
"/subdir1/subfile2",
|
|
"/subdir1/subfile3",
|
|
"leave: /subdir1",
|
|
"/subdir2",
|
|
"/subdir2/subfile1",
|
|
"/subdir2/subfile2",
|
|
"/subdir2/subfile3",
|
|
"leave: /subdir2",
|
|
"/subdir3",
|
|
"/subdir3/subfile1",
|
|
"/subdir3/subfile2",
|
|
"/subdir3/subfile3",
|
|
"leave: /subdir3",
|
|
"/zzz other",
|
|
"leave: /",
|
|
}),
|
|
checkParentTreeOrder([]string{
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir1
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir1
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir1
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir2
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir2
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir2
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir3
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir3
|
|
"57ee8960c7a86859b090a76e5d013f83d10c0ce11d5460076ca8468706f784ab", // tree /subdir3
|
|
"c2efeff7f217a4dfa12a16e8bb3cefedd37c00873605c29e5271c6061030672f", // tree /
|
|
}),
|
|
},
|
|
},
|
|
{
|
|
tree: TestTree{
|
|
"subdir1": TestTree{},
|
|
"subdir2": TestTree{},
|
|
"subdir3": TestTree{
|
|
"file": TestFile{},
|
|
},
|
|
"subdir4": TestTree{
|
|
"file": TestFile{},
|
|
},
|
|
"subdir5": TestTree{},
|
|
"subdir6": TestTree{},
|
|
},
|
|
checks: []checkFunc{
|
|
checkItemOrder([]string{
|
|
"/",
|
|
"/subdir1",
|
|
"leave: /subdir1",
|
|
"/subdir2",
|
|
"leave: /subdir2",
|
|
"/subdir3",
|
|
"/subdir3/file",
|
|
"leave: /subdir3",
|
|
"/subdir4",
|
|
"/subdir4/file",
|
|
"leave: /subdir4",
|
|
"/subdir5",
|
|
"leave: /subdir5",
|
|
"/subdir6",
|
|
"leave: /subdir6",
|
|
"leave: /",
|
|
}),
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run("", func(t *testing.T) {
|
|
repo, root := BuildTreeMap(test.tree)
|
|
for _, check := range test.checks {
|
|
t.Run("", func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.TODO())
|
|
defer cancel()
|
|
|
|
fn, leaveDir, last := check(t)
|
|
err := Walk(ctx, repo, root, WalkVisitor{
|
|
ProcessNode: fn,
|
|
LeaveDir: leaveDir,
|
|
})
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
last(t)
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|