mirror of https://github.com/octoleo/restic.git
93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
// +build ignore
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/*
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* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"errors"
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"io"
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"log"
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"os"
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"github.com/minio/minio-go"
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)
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func main() {
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// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname, my-objectname and
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// my-testfile are dummy values, please replace them with original values.
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// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
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// This boolean value is the last argument for New().
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// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
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// determined based on the Endpoint value.
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s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESS-KEY-HERE", "YOUR-SECRET-KEY-HERE", false)
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if err != nil {
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log.Fatalln(err)
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}
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reader, stat, err := s3Client.GetObjectPartial("my-bucketname", "my-objectname")
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if err != nil {
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log.Fatalln(err)
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}
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defer reader.Close()
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localFile, err := os.OpenFile("my-testfile", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
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if err != nil {
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log.Fatalln(err)
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}
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defer localfile.Close()
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st, err := localFile.Stat()
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if err != nil {
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log.Fatalln(err)
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}
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readAtOffset := st.Size()
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readAtBuffer := make([]byte, 5*1024*1024)
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// For loop.
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for {
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readAtSize, rerr := reader.ReadAt(readAtBuffer, readAtOffset)
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if rerr != nil {
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if rerr != io.EOF {
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log.Fatalln(rerr)
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}
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}
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writeSize, werr := localFile.Write(readAtBuffer[:readAtSize])
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if werr != nil {
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log.Fatalln(werr)
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}
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if readAtSize != writeSize {
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log.Fatalln(errors.New("Something really bad happened here."))
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}
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readAtOffset += int64(writeSize)
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if rerr == io.EOF {
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break
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}
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}
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// totalWritten size.
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totalWritten := readAtOffset
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// If found mismatch error out.
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if totalWritten != stat.Size {
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log.Fatalln(errors.New("Something really bad happened here."))
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}
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}
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