Golang fs.Object類代碼示例

// Add an object to the output.
// If the function returns true, the operation has been aborted.
// Multiple goroutines can safely add objects concurrently.
func (lo *ListOpts) Add(obj fs.Object) (abort bool) {
	remote := obj.Remote()
	_, err := lo.f.cipher.DecryptFileName(remote)
	if err != nil {
		fs.Debug(remote, "Skipping undecryptable file name: %v", err)
		return lo.ListOpts.IsFinished()
	}
	return lo.ListOpts.Add(lo.f.newObject(obj))
}

// read the contents of an object as a string
func readObject(t *testing.T, obj fs.Object, options ...fs.OpenOption) string {
	in, err := obj.Open(options...)
	require.NoError(t, err)
	contents, err := ioutil.ReadAll(in)
	require.NoError(t, err)
	err = in.Close()
	require.NoError(t, err)
	return string(contents)
}

// CheckHashes checks all the hashes the object supports are correct
func (i *Item) CheckHashes(t *testing.T, obj fs.Object) {
	require.NotNil(t, obj)
	types := obj.Fs().Hashes().Array()
	for _, hash := range types {
		// Check attributes
		sum, err := obj.Hash(hash)
		require.NoError(t, err)
		assert.True(t, fs.HashEquals(i.Hashes[hash], sum), fmt.Sprintf("%s/%s: %v hash incorrect - expecting %q got %q", obj.Fs().String(), obj.Remote(), hash, i.Hashes[hash], sum))
	}
}

func newReadFileHandle(o fs.Object) (*ReadFileHandle, error) {
	r, err := o.Open()
	if err != nil {
		return nil, err
	}
	return &ReadFileHandle{
		r: r,
		o: o,
	}, nil
}

func newReadFileHandle(o fs.Object) (*ReadFileHandle, error) {
	r, err := o.Open()
	if err != nil {
		return nil, err
	}
	fh := &ReadFileHandle{
		o: o,
		r: fs.NewAccount(r, o), // account the transfer
	}
	fs.Stats.Transferring(fh.o.Remote())
	return fh, nil
}

// Check checks all the attributes of the object are correct
func (i *Item) Check(t *testing.T, obj fs.Object, precision time.Duration) {
	i.CheckHashes(t, obj)
	if i.Size != obj.Size() {
		t.Errorf("%s/%s: Size incorrect - expecting %d got %d", obj.Fs().String(), obj.Remote(), i.Size, obj.Size())
	}
	i.CheckModTime(t, obj, obj.ModTime(), precision)
}

// Check off an item
func (is *Items) Find(t *testing.T, obj fs.Object, precision time.Duration) {
	i, ok := is.byName[obj.Remote()]
	if !ok {
		t.Errorf("Unexpected file %q", obj.Remote())
		return
	}
	delete(is.byName, obj.Remote())
	i.Check(t, obj, precision)
}

// Find checks off an item
func (is *Items) Find(t *testing.T, obj fs.Object, precision time.Duration) {
	i, ok := is.byName[obj.Remote()]
	if !ok {
		i, ok = is.byNameAlt[obj.Remote()]
		assert.True(t, ok, fmt.Sprintf("Unexpected file %q", obj.Remote()))
	}
	delete(is.byName, i.Path)
	delete(is.byName, i.WinPath)
	i.Check(t, obj, precision)
}

// Check checks all the attributes of the object are correct
func (i *Item) Check(t *testing.T, obj fs.Object, precision time.Duration) {
	i.CheckHashes(t, obj)
	assert.Equal(t, i.Size, obj.Size())
	i.CheckModTime(t, obj, obj.ModTime(), precision)
}

// CheckModTime checks the mod time to the given precision
func (i *Item) CheckModTime(t *testing.T, obj fs.Object, modTime time.Time, precision time.Duration) {
	dt, ok := CheckTimeEqualWithPrecision(modTime, i.ModTime, precision)
	assert.True(t, ok, fmt.Sprintf("%s: Modification time difference too big |%s| > %s (%s vs %s) (precision %s)", obj.Remote(), dt, precision, modTime, i.ModTime, precision))
}

// Check checks all the attributes of the object are correct
func (i *Item) Check(t *testing.T, obj fs.Object, precision time.Duration) {
	if obj == nil {
		t.Fatalf("Object is nil")
	}
	// Check attributes
	Md5sum, err := obj.Md5sum()
	if err != nil {
		t.Fatalf("Failed to read md5sum for %q: %v", obj.Remote(), err)
	}
	if !fs.Md5sumsEqual(i.Md5sum, Md5sum) {
		t.Errorf("%s: Md5sum incorrect - expecting %q got %q", obj.Remote(), i.Md5sum, Md5sum)
	}
	if i.Size != obj.Size() {
		t.Errorf("%s: Size incorrect - expecting %d got %d", obj.Remote(), i.Size, obj.Size())
	}
	i.CheckModTime(t, obj, obj.ModTime(), precision)
}

// CheckModTime checks the mod time to the given precision
func (i *Item) CheckModTime(t *testing.T, obj fs.Object, modTime time.Time, precision time.Duration) {
	dt, ok := CheckTimeEqualWithPrecision(modTime, i.ModTime, precision)
	if !ok {
		t.Errorf("%s: Modification time difference too big |%s| > %s (%s vs %s) (precision %s)", obj.Remote(), dt, precision, modTime, i.ModTime, precision)
	}
}

// check the mod time to the given precision
func (i *Item) CheckModTime(t *testing.T, obj fs.Object, modTime time.Time, precision time.Duration) {
	dt := modTime.Sub(i.ModTime)
	if dt >= precision || dt <= -precision {
		t.Errorf("%s: Modification time difference too big |%s| > %s (%s vs %s) (precision %s)", obj.Remote(), dt, precision, modTime, i.ModTime, precision)
	}
}

// Check checks all the attributes of the object are correct
func (i *Item) Check(t *testing.T, obj fs.Object, precision time.Duration) {
	i.CheckHashes(t, obj)
	assert.Equal(t, i.Size, obj.Size(), fmt.Sprintf("%s: size incorrect", i.Path))
	i.CheckModTime(t, obj, obj.ModTime(), precision)
}

// CheckHashes checks all the hashes the object supports are correct
func (i *Item) CheckHashes(t *testing.T, obj fs.Object) {
	if obj == nil {
		t.Fatalf("Object is nil")
	}
	types := obj.Fs().Hashes().Array()
	for _, hash := range types {
		// Check attributes
		sum, err := obj.Hash(hash)
		if err != nil {
			t.Fatalf("%s: Failed to read hash %v for %q: %v", obj.Fs().String(), hash, obj.Remote(), err)
		}
		if !fs.HashEquals(i.Hashes[hash], sum) {
			t.Errorf("%s/%s: %v hash incorrect - expecting %q got %q", obj.Fs().String(), obj.Remote(), hash, i.Hashes[hash], sum)
		}
	}
}