forked from TrueCloudLab/restic
1577 lines
36 KiB
Go
1577 lines
36 KiB
Go
package archiver
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import (
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"context"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"sync"
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"syscall"
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"testing"
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"time"
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"github.com/restic/restic/internal/checker"
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"github.com/restic/restic/internal/fs"
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"github.com/restic/restic/internal/repository"
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"github.com/restic/restic/internal/restic"
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restictest "github.com/restic/restic/internal/test"
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)
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func prepareTempdirRepoSrc(t testing.TB, src TestDir) (tempdir string, repo restic.Repository, cleanup func()) {
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tempdir, removeTempdir := restictest.TempDir(t)
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repo, removeRepository := repository.TestRepository(t)
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TestCreateFiles(t, tempdir, src)
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cleanup = func() {
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removeRepository()
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removeTempdir()
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}
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return tempdir, repo, cleanup
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}
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func saveFile(t testing.TB, repo restic.Repository, filename string, filesystem fs.FS) (*restic.Node, ItemStats) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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arch := New(repo, filesystem, Options{})
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arch.runWorkers(ctx)
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var (
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completeCallbackNode *restic.Node
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completeCallbackStats ItemStats
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completeCallback bool
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startCallback bool
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)
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complete := func(node *restic.Node, stats ItemStats) {
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completeCallback = true
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completeCallbackNode = node
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completeCallbackStats = stats
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}
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start := func() {
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startCallback = true
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}
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file, err := arch.FS.OpenFile(filename, fs.O_RDONLY|fs.O_NOFOLLOW, 0)
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if err != nil {
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t.Fatal(err)
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}
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fi, err := file.Stat()
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if err != nil {
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t.Fatal(err)
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}
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res := arch.fileSaver.Save(ctx, "/", file, fi, start, complete)
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if res.Err() != nil {
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t.Fatal(res.Err())
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}
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err = repo.Flush(ctx)
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if err != nil {
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t.Fatal(err)
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}
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err = repo.SaveIndex(ctx)
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if err != nil {
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t.Fatal(err)
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}
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if !startCallback {
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t.Errorf("start callback did not happen")
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}
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if !completeCallback {
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t.Errorf("complete callback did not happen")
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}
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if completeCallbackNode == nil {
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t.Errorf("no node returned for complete callback")
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}
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if completeCallbackNode != nil && !res.Node().Equals(*completeCallbackNode) {
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t.Errorf("different node returned for complete callback")
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}
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if completeCallbackStats != res.Stats() {
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t.Errorf("different stats return for complete callback, want:\n %v\ngot:\n %v", res.Stats(), completeCallbackStats)
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}
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return res.Node(), res.Stats()
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}
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func TestArchiverSaveFile(t *testing.T) {
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var tests = []TestFile{
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TestFile{Content: ""},
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TestFile{Content: "foo"},
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TestFile{Content: string(restictest.Random(23, 12*1024*1024+1287898))},
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}
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for _, testfile := range tests {
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t.Run("", func(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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tempdir, repo, cleanup := prepareTempdirRepoSrc(t, TestDir{"file": testfile})
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defer cleanup()
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node, stats := saveFile(t, repo, filepath.Join(tempdir, "file"), fs.Track{fs.Local{}})
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TestEnsureFileContent(ctx, t, repo, "file", node, testfile)
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if stats.DataSize != uint64(len(testfile.Content)) {
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t.Errorf("wrong stats returned in DataSize, want %d, got %d", len(testfile.Content), stats.DataSize)
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}
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if stats.DataBlobs <= 0 && len(testfile.Content) > 0 {
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t.Errorf("wrong stats returned in DataBlobs, want > 0, got %d", stats.DataBlobs)
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}
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if stats.TreeSize != 0 {
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t.Errorf("wrong stats returned in TreeSize, want 0, got %d", stats.TreeSize)
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}
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if stats.TreeBlobs != 0 {
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t.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
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}
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})
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}
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}
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func TestArchiverSaveFileReaderFS(t *testing.T) {
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var tests = []struct {
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Data string
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}{
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{Data: ""},
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{Data: "foo"},
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{Data: string(restictest.Random(23, 12*1024*1024+1287898))},
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}
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for _, test := range tests {
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t.Run("", func(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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repo, cleanup := repository.TestRepository(t)
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defer cleanup()
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ts := time.Now()
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filename := "xx"
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readerFs := &fs.Reader{
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ModTime: ts,
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Mode: 0123,
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Name: filename,
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ReadCloser: ioutil.NopCloser(strings.NewReader(test.Data)),
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}
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node, stats := saveFile(t, repo, filename, readerFs)
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TestEnsureFileContent(ctx, t, repo, "file", node, TestFile{Content: test.Data})
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if stats.DataSize != uint64(len(test.Data)) {
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t.Errorf("wrong stats returned in DataSize, want %d, got %d", len(test.Data), stats.DataSize)
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}
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if stats.DataBlobs <= 0 && len(test.Data) > 0 {
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t.Errorf("wrong stats returned in DataBlobs, want > 0, got %d", stats.DataBlobs)
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}
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if stats.TreeSize != 0 {
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t.Errorf("wrong stats returned in TreeSize, want 0, got %d", stats.TreeSize)
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}
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if stats.TreeBlobs != 0 {
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t.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
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}
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})
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}
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}
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func BenchmarkArchiverSaveFileSmall(b *testing.B) {
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const fileSize = 4 * 1024
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d := TestDir{"file": TestFile{
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Content: string(restictest.Random(23, fileSize)),
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}}
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b.SetBytes(fileSize)
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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tempdir, repo, cleanup := prepareTempdirRepoSrc(b, d)
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b.StartTimer()
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_, stats := saveFile(b, repo, filepath.Join(tempdir, "file"), fs.Track{fs.Local{}})
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b.StopTimer()
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if stats.DataSize != fileSize {
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b.Errorf("wrong stats returned in DataSize, want %d, got %d", fileSize, stats.DataSize)
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}
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if stats.DataBlobs <= 0 {
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b.Errorf("wrong stats returned in DataBlobs, want > 0, got %d", stats.DataBlobs)
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}
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if stats.TreeSize != 0 {
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b.Errorf("wrong stats returned in TreeSize, want 0, got %d", stats.TreeSize)
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}
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if stats.TreeBlobs != 0 {
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b.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
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}
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cleanup()
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b.StartTimer()
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}
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}
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func BenchmarkArchiverSaveFileLarge(b *testing.B) {
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const fileSize = 40*1024*1024 + 1287898
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d := TestDir{"file": TestFile{
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Content: string(restictest.Random(23, fileSize)),
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}}
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b.SetBytes(fileSize)
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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tempdir, repo, cleanup := prepareTempdirRepoSrc(b, d)
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b.StartTimer()
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_, stats := saveFile(b, repo, filepath.Join(tempdir, "file"), fs.Track{fs.Local{}})
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b.StopTimer()
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if stats.DataSize != fileSize {
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b.Errorf("wrong stats returned in DataSize, want %d, got %d", fileSize, stats.DataSize)
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}
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if stats.DataBlobs <= 0 {
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b.Errorf("wrong stats returned in DataBlobs, want > 0, got %d", stats.DataBlobs)
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}
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if stats.TreeSize != 0 {
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b.Errorf("wrong stats returned in TreeSize, want 0, got %d", stats.TreeSize)
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}
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if stats.TreeBlobs != 0 {
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b.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
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}
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cleanup()
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b.StartTimer()
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}
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}
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type blobCountingRepo struct {
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restic.Repository
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m sync.Mutex
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saved map[restic.BlobHandle]uint
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}
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func (repo *blobCountingRepo) SaveBlob(ctx context.Context, t restic.BlobType, buf []byte, id restic.ID) (restic.ID, error) {
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id, err := repo.Repository.SaveBlob(ctx, t, buf, id)
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h := restic.BlobHandle{ID: id, Type: t}
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repo.m.Lock()
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repo.saved[h]++
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repo.m.Unlock()
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return id, err
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}
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func (repo *blobCountingRepo) SaveTree(ctx context.Context, t *restic.Tree) (restic.ID, error) {
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id, err := repo.Repository.SaveTree(ctx, t)
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h := restic.BlobHandle{ID: id, Type: restic.TreeBlob}
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repo.m.Lock()
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repo.saved[h]++
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repo.m.Unlock()
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return id, err
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}
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func appendToFile(t testing.TB, filename string, data []byte) {
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f, err := os.OpenFile(filename, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
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if err != nil {
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t.Fatal(err)
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}
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_, err = f.Write(data)
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if err != nil {
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_ = f.Close()
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestArchiverSaveFileIncremental(t *testing.T) {
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tempdir, removeTempdir := restictest.TempDir(t)
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defer removeTempdir()
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testRepo, removeRepository := repository.TestRepository(t)
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defer removeRepository()
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repo := &blobCountingRepo{
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Repository: testRepo,
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saved: make(map[restic.BlobHandle]uint),
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}
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data := restictest.Random(23, 512*1024+887898)
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testfile := filepath.Join(tempdir, "testfile")
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for i := 0; i < 3; i++ {
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appendToFile(t, testfile, data)
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node, _ := saveFile(t, repo, testfile, fs.Track{fs.Local{}})
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t.Logf("node blobs: %v", node.Content)
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for h, n := range repo.saved {
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if n > 1 {
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t.Errorf("iteration %v: blob %v saved more than once (%d times)", i, h, n)
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}
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}
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}
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}
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func save(t testing.TB, filename string, data []byte) {
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f, err := os.Create(filename)
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if err != nil {
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t.Fatal(err)
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}
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_, err = f.Write(data)
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if err != nil {
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t.Fatal(err)
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}
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err = f.Sync()
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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}
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func lstat(t testing.TB, name string) os.FileInfo {
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fi, err := os.Lstat(name)
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if err != nil {
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t.Fatal(err)
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}
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return fi
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}
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func setTimestamp(t testing.TB, filename string, atime, mtime time.Time) {
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var utimes = [...]syscall.Timespec{
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syscall.NsecToTimespec(atime.UnixNano()),
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syscall.NsecToTimespec(mtime.UnixNano()),
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}
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err := syscall.UtimesNano(filename, utimes[:])
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if err != nil {
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t.Fatal(err)
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}
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}
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func remove(t testing.TB, filename string) {
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err := os.Remove(filename)
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if err != nil {
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t.Fatal(err)
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}
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}
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func nodeFromFI(t testing.TB, filename string, fi os.FileInfo) *restic.Node {
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node, err := restic.NodeFromFileInfo(filename, fi)
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if err != nil {
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t.Fatal(err)
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}
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return node
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}
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func TestFileChanged(t *testing.T) {
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var defaultContent = []byte("foobar")
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var d = 50 * time.Millisecond
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if runtime.GOOS == "darwin" {
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// on older darwin instances the file system only supports one second
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// granularity
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d = time.Second
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}
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sleep := func() {
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time.Sleep(d)
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}
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var tests = []struct {
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Name string
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Content []byte
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Modify func(t testing.TB, filename string)
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}{
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{
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Name: "same-content-new-file",
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Modify: func(t testing.TB, filename string) {
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remove(t, filename)
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sleep()
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save(t, filename, defaultContent)
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},
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},
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{
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Name: "same-content-new-timestamp",
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Modify: func(t testing.TB, filename string) {
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sleep()
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save(t, filename, defaultContent)
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},
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},
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{
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Name: "other-content",
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Modify: func(t testing.TB, filename string) {
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remove(t, filename)
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sleep()
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save(t, filename, []byte("xxxxxx"))
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},
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},
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{
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Name: "longer-content",
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Modify: func(t testing.TB, filename string) {
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save(t, filename, []byte("xxxxxxxxxxxxxxxxxxxxxx"))
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},
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},
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{
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Name: "new-file",
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Modify: func(t testing.TB, filename string) {
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remove(t, filename)
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sleep()
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save(t, filename, defaultContent)
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},
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},
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}
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for _, test := range tests {
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t.Run(test.Name, func(t *testing.T) {
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tempdir, cleanup := restictest.TempDir(t)
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defer cleanup()
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filename := filepath.Join(tempdir, "file")
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content := defaultContent
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if test.Content != nil {
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content = test.Content
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}
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save(t, filename, content)
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fiBefore := lstat(t, filename)
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node := nodeFromFI(t, filename, fiBefore)
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if fileChanged(fiBefore, node) {
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t.Fatalf("unchanged file detected as changed")
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}
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test.Modify(t, filename)
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fiAfter := lstat(t, filename)
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if !fileChanged(fiAfter, node) {
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t.Fatalf("modified file detected as unchanged")
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}
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})
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}
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}
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|
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func TestFilChangedSpecialCases(t *testing.T) {
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tempdir, cleanup := restictest.TempDir(t)
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defer cleanup()
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filename := filepath.Join(tempdir, "file")
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content := []byte("foobar")
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save(t, filename, content)
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t.Run("nil-node", func(t *testing.T) {
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fi := lstat(t, filename)
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if !fileChanged(fi, nil) {
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t.Fatal("nil node detected as unchanged")
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}
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})
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|
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t.Run("type-change", func(t *testing.T) {
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fi := lstat(t, filename)
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node := nodeFromFI(t, filename, fi)
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node.Type = "symlink"
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if !fileChanged(fi, node) {
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t.Fatal("node with changed type detected as unchanged")
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}
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})
|
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}
|
|
|
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func TestArchiverSaveDir(t *testing.T) {
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const targetNodeName = "targetdir"
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|
|
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var tests = []struct {
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src TestDir
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chdir string
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target string
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want TestDir
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}{
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|
{
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src: TestDir{
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"targetfile": TestFile{Content: string(restictest.Random(888, 2*1024*1024+5000))},
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},
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target: ".",
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want: TestDir{
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"targetdir": TestDir{
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"targetfile": TestFile{Content: string(restictest.Random(888, 2*1024*1024+5000))},
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},
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},
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},
|
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{
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src: TestDir{
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"targetdir": TestDir{
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"foo": TestFile{Content: "foo"},
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"emptyfile": TestFile{Content: ""},
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"bar": TestFile{Content: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"},
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"largefile": TestFile{Content: string(restictest.Random(888, 2*1024*1024+5000))},
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"largerfile": TestFile{Content: string(restictest.Random(234, 5*1024*1024+5000))},
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},
|
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},
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target: "targetdir",
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},
|
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{
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src: TestDir{
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"foo": TestFile{Content: "foo"},
|
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"emptyfile": TestFile{Content: ""},
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"bar": TestFile{Content: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"},
|
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},
|
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target: ".",
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want: TestDir{
|
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"targetdir": TestDir{
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"foo": TestFile{Content: "foo"},
|
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"emptyfile": TestFile{Content: ""},
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"bar": TestFile{Content: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"},
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},
|
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},
|
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},
|
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{
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src: TestDir{
|
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"foo": TestDir{
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"subdir": TestDir{
|
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"x": TestFile{Content: "xxx"},
|
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"y": TestFile{Content: "yyyyyyyyyyyyyyyy"},
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"z": TestFile{Content: "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"},
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},
|
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"file": TestFile{Content: "just a test"},
|
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},
|
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},
|
|
chdir: "foo/subdir",
|
|
target: "../../",
|
|
want: TestDir{
|
|
"targetdir": TestDir{
|
|
"foo": TestDir{
|
|
"subdir": TestDir{
|
|
"x": TestFile{Content: "xxx"},
|
|
"y": TestFile{Content: "yyyyyyyyyyyyyyyy"},
|
|
"z": TestFile{Content: "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"},
|
|
},
|
|
"file": TestFile{Content: "just a test"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
src: TestDir{
|
|
"foo": TestDir{
|
|
"file": TestFile{Content: "just a test"},
|
|
"file2": TestFile{Content: "again"},
|
|
},
|
|
},
|
|
target: "./foo",
|
|
want: TestDir{
|
|
"targetdir": TestDir{
|
|
"file": TestFile{Content: "just a test"},
|
|
"file2": TestFile{Content: "again"},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run("", func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
arch := New(repo, fs.Track{fs.Local{}}, Options{})
|
|
arch.runWorkers(ctx)
|
|
|
|
chdir := tempdir
|
|
if test.chdir != "" {
|
|
chdir = filepath.Join(chdir, test.chdir)
|
|
}
|
|
|
|
back := fs.TestChdir(t, chdir)
|
|
defer back()
|
|
|
|
fi, err := fs.Lstat(test.target)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
ft, err := arch.SaveDir(ctx, "/", fi, test.target, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
node, stats, err := ft.Node(), ft.Stats(), ft.Err()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Logf("stats: %v", stats)
|
|
if stats.DataSize != 0 {
|
|
t.Errorf("wrong stats returned in DataSize, want 0, got %d", stats.DataSize)
|
|
}
|
|
if stats.DataBlobs != 0 {
|
|
t.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
|
|
}
|
|
if stats.TreeSize <= 0 {
|
|
t.Errorf("wrong stats returned in TreeSize, want > 0, got %d", stats.TreeSize)
|
|
}
|
|
if stats.TreeBlobs <= 0 {
|
|
t.Errorf("wrong stats returned in TreeBlobs, want > 0, got %d", stats.TreeBlobs)
|
|
}
|
|
|
|
node.Name = targetNodeName
|
|
tree := &restic.Tree{Nodes: []*restic.Node{node}}
|
|
treeID, err := repo.SaveTree(ctx, tree)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = repo.Flush(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = repo.SaveIndex(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
want := test.want
|
|
if want == nil {
|
|
want = test.src
|
|
}
|
|
TestEnsureTree(ctx, t, "/", repo, treeID, want)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestArchiverSaveDirIncremental(t *testing.T) {
|
|
tempdir, removeTempdir := restictest.TempDir(t)
|
|
defer removeTempdir()
|
|
|
|
testRepo, removeRepository := repository.TestRepository(t)
|
|
defer removeRepository()
|
|
|
|
repo := &blobCountingRepo{
|
|
Repository: testRepo,
|
|
saved: make(map[restic.BlobHandle]uint),
|
|
}
|
|
|
|
appendToFile(t, filepath.Join(tempdir, "testfile"), []byte("foobar"))
|
|
|
|
// save the empty directory several times in a row, then have a look if the
|
|
// archiver did save the same tree several times
|
|
for i := 0; i < 5; i++ {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
arch := New(repo, fs.Track{fs.Local{}}, Options{})
|
|
arch.runWorkers(ctx)
|
|
|
|
fi, err := fs.Lstat(tempdir)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
ft, err := arch.SaveDir(ctx, "/", fi, tempdir, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
node, stats, err := ft.Node(), ft.Stats(), ft.Err()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if i == 0 {
|
|
// operation must have added new tree data
|
|
if stats.DataSize != 0 {
|
|
t.Errorf("wrong stats returned in DataSize, want 0, got %d", stats.DataSize)
|
|
}
|
|
if stats.DataBlobs != 0 {
|
|
t.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
|
|
}
|
|
if stats.TreeSize <= 0 {
|
|
t.Errorf("wrong stats returned in TreeSize, want > 0, got %d", stats.TreeSize)
|
|
}
|
|
if stats.TreeBlobs <= 0 {
|
|
t.Errorf("wrong stats returned in TreeBlobs, want > 0, got %d", stats.TreeBlobs)
|
|
}
|
|
} else {
|
|
// operation must not have added any new data
|
|
if stats.DataSize != 0 {
|
|
t.Errorf("wrong stats returned in DataSize, want 0, got %d", stats.DataSize)
|
|
}
|
|
if stats.DataBlobs != 0 {
|
|
t.Errorf("wrong stats returned in DataBlobs, want 0, got %d", stats.DataBlobs)
|
|
}
|
|
if stats.TreeSize != 0 {
|
|
t.Errorf("wrong stats returned in TreeSize, want 0, got %d", stats.TreeSize)
|
|
}
|
|
if stats.TreeBlobs != 0 {
|
|
t.Errorf("wrong stats returned in TreeBlobs, want 0, got %d", stats.TreeBlobs)
|
|
}
|
|
}
|
|
|
|
t.Logf("node subtree %v", node.Subtree)
|
|
|
|
err = repo.Flush(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = repo.SaveIndex(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for h, n := range repo.saved {
|
|
if n > 1 {
|
|
t.Errorf("iteration %v: blob %v saved more than once (%d times)", i, h, n)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestArchiverSaveTree(t *testing.T) {
|
|
symlink := func(from, to string) func(t testing.TB) {
|
|
return func(t testing.TB) {
|
|
err := os.Symlink(from, to)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
var tests = []struct {
|
|
src TestDir
|
|
prepare func(t testing.TB)
|
|
targets []string
|
|
want TestDir
|
|
}{
|
|
{
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
targets: []string{"targetfile"},
|
|
want: TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
},
|
|
{
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
prepare: symlink("targetfile", "filesymlink"),
|
|
targets: []string{"targetfile", "filesymlink"},
|
|
want: TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
"filesymlink": TestSymlink{Target: "targetfile"},
|
|
},
|
|
},
|
|
{
|
|
src: TestDir{
|
|
"dir": TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
},
|
|
"otherfile": TestFile{Content: string("xxx")},
|
|
},
|
|
},
|
|
prepare: symlink("subdir", filepath.FromSlash("dir/symlink")),
|
|
targets: []string{filepath.FromSlash("dir/symlink")},
|
|
want: TestDir{
|
|
"dir": TestDir{
|
|
"symlink": TestSymlink{Target: "subdir"},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
src: TestDir{
|
|
"dir": TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
},
|
|
"otherfile": TestFile{Content: string("xxx")},
|
|
},
|
|
},
|
|
prepare: symlink("subdir", filepath.FromSlash("dir/symlink")),
|
|
targets: []string{filepath.FromSlash("dir/symlink/subsubdir")},
|
|
want: TestDir{
|
|
"dir": TestDir{
|
|
"symlink": TestDir{
|
|
"subsubdir": TestDir{
|
|
"targetfile": TestFile{Content: string("foobar")},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run("", func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
testFS := fs.Track{fs.Local{}}
|
|
|
|
arch := New(repo, testFS, Options{})
|
|
arch.runWorkers(ctx)
|
|
|
|
back := fs.TestChdir(t, tempdir)
|
|
defer back()
|
|
|
|
if test.prepare != nil {
|
|
test.prepare(t)
|
|
}
|
|
|
|
atree, err := NewTree(testFS, test.targets)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
tree, err := arch.SaveTree(ctx, "/", atree, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
treeID, err := repo.SaveTree(ctx, tree)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = repo.Flush(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = repo.SaveIndex(ctx)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
want := test.want
|
|
if want == nil {
|
|
want = test.src
|
|
}
|
|
TestEnsureTree(ctx, t, "/", repo, treeID, want)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestArchiverSnapshot(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
src TestDir
|
|
want TestDir
|
|
chdir string
|
|
targets []string
|
|
}{
|
|
{
|
|
name: "single-file",
|
|
src: TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
targets: []string{"foo"},
|
|
},
|
|
{
|
|
name: "file-current-dir",
|
|
src: TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
targets: []string{"./foo"},
|
|
},
|
|
{
|
|
name: "dir",
|
|
src: TestDir{
|
|
"target": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
targets: []string{"target"},
|
|
},
|
|
{
|
|
name: "dir-current-dir",
|
|
src: TestDir{
|
|
"target": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
targets: []string{"./target"},
|
|
},
|
|
{
|
|
name: "content-dir-current-dir",
|
|
src: TestDir{
|
|
"target": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
targets: []string{"./target/."},
|
|
},
|
|
{
|
|
name: "current-dir",
|
|
src: TestDir{
|
|
"target": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
targets: []string{"."},
|
|
},
|
|
{
|
|
name: "subdir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
targets: []string{"subdir"},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "subsubdir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
targets: []string{"subdir/subsubdir"},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "parent-dir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir",
|
|
targets: []string{".."},
|
|
},
|
|
{
|
|
name: "parent-parent-dir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"subsubdir": TestDir{
|
|
"empty": TestFile{Content: ""},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir/subsubdir",
|
|
targets: []string{"../.."},
|
|
},
|
|
{
|
|
name: "parent-parent-dir-slash",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir/subsubdir",
|
|
targets: []string{"../../"},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
},
|
|
{
|
|
name: "parent-subdir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir",
|
|
targets: []string{"../subdir"},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "parent-parent-dir-subdir",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir/subsubdir",
|
|
targets: []string{"../../subdir/subsubdir"},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "included-multiple1",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
},
|
|
targets: []string{"subdir", "subdir/subsubdir"},
|
|
},
|
|
{
|
|
name: "included-multiple2",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
},
|
|
targets: []string{"subdir/subsubdir", "subdir"},
|
|
},
|
|
{
|
|
name: "collision",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subdir"},
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
},
|
|
"foo": TestFile{Content: "another file"},
|
|
},
|
|
chdir: "subdir",
|
|
targets: []string{".", "../foo"},
|
|
want: TestDir{
|
|
|
|
"foo": TestFile{Content: "foo in subdir"},
|
|
"subsubdir": TestDir{
|
|
"foo": TestFile{Content: "foo in subsubdir"},
|
|
},
|
|
"foo-1": TestFile{Content: "another file"},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
arch := New(repo, fs.Track{fs.Local{}}, Options{})
|
|
|
|
chdir := tempdir
|
|
if test.chdir != "" {
|
|
chdir = filepath.Join(chdir, filepath.FromSlash(test.chdir))
|
|
}
|
|
|
|
back := fs.TestChdir(t, chdir)
|
|
defer back()
|
|
|
|
var targets []string
|
|
for _, target := range test.targets {
|
|
targets = append(targets, os.ExpandEnv(target))
|
|
}
|
|
|
|
t.Logf("targets: %v", targets)
|
|
sn, snapshotID, err := arch.Snapshot(ctx, targets, SnapshotOptions{Time: time.Now()})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Logf("saved as %v", snapshotID.Str())
|
|
|
|
want := test.want
|
|
if want == nil {
|
|
want = test.src
|
|
}
|
|
TestEnsureSnapshot(t, repo, snapshotID, want)
|
|
|
|
checker.TestCheckRepo(t, repo)
|
|
|
|
// check that the snapshot contains the targets with absolute paths
|
|
for i, target := range sn.Paths {
|
|
atarget, err := filepath.Abs(test.targets[i])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if target != atarget {
|
|
t.Errorf("wrong path in snapshot: want %v, got %v", atarget, target)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestArchiverSnapshotSelect(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
src TestDir
|
|
want TestDir
|
|
selFn SelectFunc
|
|
}{
|
|
{
|
|
name: "include-all",
|
|
src: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"foo.txt": TestFile{Content: "foo text file"},
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "other in subdir"},
|
|
"bar.txt": TestFile{Content: "bar.txt in subdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
selFn: func(item string, fi os.FileInfo) bool {
|
|
return true
|
|
},
|
|
},
|
|
{
|
|
name: "exclude-all",
|
|
src: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"foo.txt": TestFile{Content: "foo text file"},
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "other in subdir"},
|
|
"bar.txt": TestFile{Content: "bar.txt in subdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
selFn: func(item string, fi os.FileInfo) bool {
|
|
return false
|
|
},
|
|
want: TestDir{},
|
|
},
|
|
{
|
|
name: "exclude-txt-files",
|
|
src: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"foo.txt": TestFile{Content: "foo text file"},
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "other in subdir"},
|
|
"bar.txt": TestFile{Content: "bar.txt in subdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
want: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "other in subdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
selFn: func(item string, fi os.FileInfo) bool {
|
|
if filepath.Ext(item) == ".txt" {
|
|
return false
|
|
}
|
|
return true
|
|
},
|
|
},
|
|
{
|
|
name: "exclude-dir",
|
|
src: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"foo.txt": TestFile{Content: "foo text file"},
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "other in subdir"},
|
|
"bar.txt": TestFile{Content: "bar.txt in subdir"},
|
|
},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
want: TestDir{
|
|
"work": TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
"foo.txt": TestFile{Content: "foo text file"},
|
|
},
|
|
"other": TestFile{Content: "another file"},
|
|
},
|
|
selFn: func(item string, fi os.FileInfo) bool {
|
|
if filepath.Base(item) == "subdir" {
|
|
return false
|
|
}
|
|
return true
|
|
},
|
|
},
|
|
{
|
|
name: "select-absolute-paths",
|
|
src: TestDir{
|
|
"foo": TestFile{Content: "foo"},
|
|
},
|
|
selFn: func(item string, fi os.FileInfo) bool {
|
|
return filepath.IsAbs(item)
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
arch := New(repo, fs.Track{fs.Local{}}, Options{})
|
|
arch.Select = test.selFn
|
|
|
|
back := fs.TestChdir(t, tempdir)
|
|
defer back()
|
|
|
|
targets := []string{"."}
|
|
_, snapshotID, err := arch.Snapshot(ctx, targets, SnapshotOptions{Time: time.Now()})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Logf("saved as %v", snapshotID.Str())
|
|
|
|
want := test.want
|
|
if want == nil {
|
|
want = test.src
|
|
}
|
|
TestEnsureSnapshot(t, repo, snapshotID, want)
|
|
|
|
checker.TestCheckRepo(t, repo)
|
|
})
|
|
}
|
|
}
|
|
|
|
// MockFS keeps track which files are read.
|
|
type MockFS struct {
|
|
fs.FS
|
|
|
|
m sync.Mutex
|
|
bytesRead map[string]int // tracks bytes read from all opened files
|
|
}
|
|
|
|
func (m *MockFS) Open(name string) (fs.File, error) {
|
|
f, err := m.FS.Open(name)
|
|
if err != nil {
|
|
return f, err
|
|
}
|
|
|
|
return MockFile{File: f, fs: m, filename: name}, nil
|
|
}
|
|
|
|
func (m *MockFS) OpenFile(name string, flag int, perm os.FileMode) (fs.File, error) {
|
|
f, err := m.FS.OpenFile(name, flag, perm)
|
|
if err != nil {
|
|
return f, err
|
|
}
|
|
|
|
return MockFile{File: f, fs: m, filename: name}, nil
|
|
}
|
|
|
|
type MockFile struct {
|
|
fs.File
|
|
filename string
|
|
|
|
fs *MockFS
|
|
}
|
|
|
|
func (f MockFile) Read(p []byte) (int, error) {
|
|
n, err := f.File.Read(p)
|
|
if n > 0 {
|
|
f.fs.m.Lock()
|
|
f.fs.bytesRead[f.filename] += n
|
|
f.fs.m.Unlock()
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
func TestArchiverParent(t *testing.T) {
|
|
var tests = []struct {
|
|
src TestDir
|
|
read map[string]int // tracks number of times a file must have been read
|
|
}{
|
|
{
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: string(restictest.Random(888, 2*1024*1024+5000))},
|
|
},
|
|
read: map[string]int{
|
|
"targetfile": 1,
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run("", func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
testFS := &MockFS{
|
|
FS: fs.Track{fs.Local{}},
|
|
bytesRead: make(map[string]int),
|
|
}
|
|
|
|
arch := New(repo, testFS, Options{})
|
|
|
|
back := fs.TestChdir(t, tempdir)
|
|
defer back()
|
|
|
|
_, firstSnapshotID, err := arch.Snapshot(ctx, []string{"."}, SnapshotOptions{Time: time.Now()})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Logf("first backup saved as %v", firstSnapshotID.Str())
|
|
t.Logf("testfs: %v", testFS)
|
|
|
|
// check that all files have been read exactly once
|
|
TestWalkFiles(t, ".", test.src, func(filename string, item interface{}) error {
|
|
file, ok := item.(TestFile)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
|
|
n, ok := testFS.bytesRead[filename]
|
|
if !ok {
|
|
t.Fatalf("file %v was not read at all", filename)
|
|
}
|
|
|
|
if n != len(file.Content) {
|
|
t.Fatalf("file %v: read %v bytes, wanted %v bytes", filename, n, len(file.Content))
|
|
}
|
|
return nil
|
|
})
|
|
|
|
opts := SnapshotOptions{
|
|
Time: time.Now(),
|
|
ParentSnapshot: firstSnapshotID,
|
|
}
|
|
_, secondSnapshotID, err := arch.Snapshot(ctx, []string{"."}, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// check that all files still been read exactly once
|
|
TestWalkFiles(t, ".", test.src, func(filename string, item interface{}) error {
|
|
file, ok := item.(TestFile)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
|
|
n, ok := testFS.bytesRead[filename]
|
|
if !ok {
|
|
t.Fatalf("file %v was not read at all", filename)
|
|
}
|
|
|
|
if n != len(file.Content) {
|
|
t.Fatalf("file %v: read %v bytes, wanted %v bytes", filename, n, len(file.Content))
|
|
}
|
|
return nil
|
|
})
|
|
|
|
t.Logf("second backup saved as %v", secondSnapshotID.Str())
|
|
t.Logf("testfs: %v", testFS)
|
|
|
|
checker.TestCheckRepo(t, repo)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestArchiverErrorReporting(t *testing.T) {
|
|
ignoreErrorForBasename := func(basename string) ErrorFunc {
|
|
return func(item string, fi os.FileInfo, err error) error {
|
|
if filepath.Base(item) == "targetfile" {
|
|
t.Logf("ignoring error for targetfile: %v", err)
|
|
return nil
|
|
}
|
|
|
|
t.Errorf("error handler called for unexpected file %v: %v", item, err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
chmodUnreadable := func(filename string) func(testing.TB) {
|
|
return func(t testing.TB) {
|
|
if runtime.GOOS == "windows" {
|
|
t.Skip("Skipping this test for windows")
|
|
}
|
|
|
|
err := os.Chmod(filepath.FromSlash(filename), 0004)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
var tests = []struct {
|
|
name string
|
|
src TestDir
|
|
want TestDir
|
|
prepare func(t testing.TB)
|
|
errFn ErrorFunc
|
|
mustError bool
|
|
}{
|
|
{
|
|
name: "no-error",
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: "foobar"},
|
|
},
|
|
},
|
|
{
|
|
name: "file-unreadable",
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: "foobar"},
|
|
},
|
|
prepare: chmodUnreadable("targetfile"),
|
|
mustError: true,
|
|
},
|
|
{
|
|
name: "file-unreadable-ignore-error",
|
|
src: TestDir{
|
|
"targetfile": TestFile{Content: "foobar"},
|
|
"other": TestFile{Content: "xxx"},
|
|
},
|
|
want: TestDir{
|
|
"other": TestFile{Content: "xxx"},
|
|
},
|
|
prepare: chmodUnreadable("targetfile"),
|
|
errFn: ignoreErrorForBasename("targetfile"),
|
|
},
|
|
{
|
|
name: "file-subdir-unreadable",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"targetfile": TestFile{Content: "foobar"},
|
|
},
|
|
},
|
|
prepare: chmodUnreadable("subdir/targetfile"),
|
|
mustError: true,
|
|
},
|
|
{
|
|
name: "file-subdir-unreadable-ignore-error",
|
|
src: TestDir{
|
|
"subdir": TestDir{
|
|
"targetfile": TestFile{Content: "foobar"},
|
|
"other": TestFile{Content: "xxx"},
|
|
},
|
|
},
|
|
want: TestDir{
|
|
"subdir": TestDir{
|
|
"other": TestFile{Content: "xxx"},
|
|
},
|
|
},
|
|
prepare: chmodUnreadable("subdir/targetfile"),
|
|
errFn: ignoreErrorForBasename("targetfile"),
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
tempdir, repo, cleanup := prepareTempdirRepoSrc(t, test.src)
|
|
defer cleanup()
|
|
|
|
back := fs.TestChdir(t, tempdir)
|
|
defer back()
|
|
|
|
if test.prepare != nil {
|
|
test.prepare(t)
|
|
}
|
|
|
|
arch := New(repo, fs.Track{fs.Local{}}, Options{})
|
|
arch.Error = test.errFn
|
|
|
|
_, snapshotID, err := arch.Snapshot(ctx, []string{"."}, SnapshotOptions{Time: time.Now()})
|
|
if test.mustError {
|
|
if err != nil {
|
|
t.Logf("found expected error (%v), skipping further checks", err)
|
|
return
|
|
}
|
|
|
|
t.Fatalf("expected error not returned by archiver")
|
|
return
|
|
}
|
|
|
|
if err != nil {
|
|
t.Fatalf("unexpected error of type %T found: %v", err, err)
|
|
}
|
|
|
|
t.Logf("saved as %v", snapshotID.Str())
|
|
|
|
want := test.want
|
|
if want == nil {
|
|
want = test.src
|
|
}
|
|
TestEnsureSnapshot(t, repo, snapshotID, want)
|
|
|
|
checker.TestCheckRepo(t, repo)
|
|
})
|
|
}
|
|
}
|