agola/internal/objectstorage/objectstorage.go

68 lines
1.9 KiB
Go

// Copyright 2019 Sorint.lab
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
// See the License for the specific language governing permissions and
// limitations under the License.
package objectstorage
import (
"context"
"io"
"time"
"github.com/sorintlab/errors"
"agola.io/agola/internal/util"
)
type ObjStorage interface {
Stat(ctx context.Context, filepath string) (*ObjectInfo, error)
ReadObject(ctx context.Context, filepath string) (ReadSeekCloser, error)
// WriteObject atomically writes an object. If size is greater or equal to
// zero then only size bytes will be read from data and wrote. If size is
// less than zero data will be wrote until EOF. When persist is true the
// implementation must ensure that data is persisted to the underlying
// storage.
WriteObject(ctx context.Context, filepath string, data io.Reader, size int64, persist bool) error
DeleteObject(ctx context.Context, filepath string) error
List(ctx context.Context, prefix, startAfter string, recursive bool) <-chan ObjectInfo
}
type ErrNotExist struct {
*util.WrapperError
}
func NewErrNotExist(err error, format string, args ...interface{}) error {
return &ErrNotExist{
util.NewWrapperError(err, util.WithWrapperErrorMsgf(format, args...)),
}
}
func IsNotExist(err error) bool {
var e *ErrNotExist
return errors.As(err, &e)
}
type ReadSeekCloser interface {
io.Reader
io.Seeker
io.Closer
}
type ObjectInfo struct {
Path string
LastModified time.Time
Size int64
Err error
}