TrueCloudLab/restic
16
0
Fork 3
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

move Backend interface to backend package

Browse source
This commit is contained in:
Michael Eischer 2023-10-01 11:40:12 +02:00
parent ceb0774af1
commit 1b8a67fe76
105 changed files with 822 additions and 775 deletions
Download patch file Download diff file Expand all files Collapse all files

24
internal/backend/retry/backend_retry.go
View file

@ -7,27 +7,27 @@ import (
"time"
"github.com/cenkalti/backoff/v4"
"github.com/restic/restic/internal/backend"
"github.com/restic/restic/internal/debug"
"github.com/restic/restic/internal/restic"
)
// Backend retries operations on the backend in case of an error with a
// backoff.
type Backend struct {
restic.Backend
backend.Backend
MaxTries int
Report func(string, error, time.Duration)
Success func(string, int)
}
// statically ensure that RetryBackend implements restic.Backend.
var _ restic.Backend = &Backend{}
// statically ensure that RetryBackend implements backend.Backend.
var _ backend.Backend = &Backend{}
// New wraps be with a backend that retries operations after a
// backoff. report is called with a description and the error, if one occurred.
// success is called with the number of retries before a successful operation
// (it is not called if it succeeded on the first try)
func New(be restic.Backend, maxTries int, report func(string, error, time.Duration), success func(string, int)) *Backend {
func New(be backend.Backend, maxTries int, report func(string, error, time.Duration), success func(string, int)) *Backend {
return &Backend{
Backend: be,
MaxTries: maxTries,
@ -92,7 +92,7 @@ func (be *Backend) retry(ctx context.Context, msg string, f func() error) error
}
// Save stores the data in the backend under the given handle.
func (be *Backend) Save(ctx context.Context, h restic.Handle, rd restic.RewindReader) error {
func (be *Backend) Save(ctx context.Context, h backend.Handle, rd backend.RewindReader) error {
return be.retry(ctx, fmt.Sprintf("Save(%v)", h), func() error {
err := rd.Rewind()
if err != nil {
@ -125,7 +125,7 @@ func (be *Backend) Save(ctx context.Context, h restic.Handle, rd restic.RewindRe
// given offset. If length is larger than zero, only a portion of the file
// is returned. rd must be closed after use. If an error is returned, the
// ReadCloser must be nil.
func (be *Backend) Load(ctx context.Context, h restic.Handle, length int, offset int64, consumer func(rd io.Reader) error) (err error) {
func (be *Backend) Load(ctx context.Context, h backend.Handle, length int, offset int64, consumer func(rd io.Reader) error) (err error) {
return be.retry(ctx, fmt.Sprintf("Load(%v, %v, %v)", h, length, offset),
func() error {
err := be.Backend.Load(ctx, h, length, offset, consumer)
@ -137,7 +137,7 @@ func (be *Backend) Load(ctx context.Context, h restic.Handle, length int, offset
}
// Stat returns information about the File identified by h.
func (be *Backend) Stat(ctx context.Context, h restic.Handle) (fi restic.FileInfo, err error) {
func (be *Backend) Stat(ctx context.Context, h backend.Handle) (fi backend.FileInfo, err error) {
err = be.retry(ctx, fmt.Sprintf("Stat(%v)", h),
func() error {
var innerError error
@ -153,7 +153,7 @@ func (be *Backend) Stat(ctx context.Context, h restic.Handle) (fi restic.FileInf
}
// Remove removes a File with type t and name.
func (be *Backend) Remove(ctx context.Context, h restic.Handle) (err error) {
func (be *Backend) Remove(ctx context.Context, h backend.Handle) (err error) {
return be.retry(ctx, fmt.Sprintf("Remove(%v)", h), func() error {
return be.Backend.Remove(ctx, h)
})
@ -163,7 +163,7 @@ func (be *Backend) Remove(ctx context.Context, h restic.Handle) (err error) {
// error is returned by the underlying backend, the request is retried. When fn
// returns an error, the operation is aborted and the error is returned to the
// caller.
func (be *Backend) List(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) error {
func (be *Backend) List(ctx context.Context, t backend.FileType, fn func(backend.FileInfo) error) error {
// create a new context that we can cancel when fn returns an error, so
// that listing is aborted
listCtx, cancel := context.WithCancel(ctx)
@ -173,7 +173,7 @@ func (be *Backend) List(ctx context.Context, t restic.FileType, fn func(restic.F
var innerErr error // remember when fn returned an error, so we can return that to the caller
err := be.retry(listCtx, fmt.Sprintf("List(%v)", t), func() error {
return be.Backend.List(ctx, t, func(fi restic.FileInfo) error {
return be.Backend.List(ctx, t, func(fi backend.FileInfo) error {
if _, ok := listed[fi.Name]; ok {
return nil
}
@ -196,6 +196,6 @@ func (be *Backend) List(ctx context.Context, t restic.FileType, fn func(restic.F
return err
}
func (be *Backend) Unwrap() restic.Backend {
func (be *Backend) Unwrap() backend.Backend {
return be.Backend
}