summaryrefslogtreecommitdiffstats
path: root/vendor/github.com/minio/minio-go/v7/api-get-object-file.go
diff options
context:
space:
mode:
authorWim <wim@42.be>2021-10-16 23:11:32 +0200
committerWim <wim@42.be>2021-10-16 23:23:24 +0200
commit20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8 (patch)
tree230edca06449a8d1755f08aabf45a03e07e6f17c /vendor/github.com/minio/minio-go/v7/api-get-object-file.go
parent57fce93af7f64f025cec6f3ed6088163086bc9fe (diff)
downloadmatterbridge-msglm-20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8.tar.gz
matterbridge-msglm-20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8.tar.bz2
matterbridge-msglm-20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8.zip
Update vendor
Diffstat (limited to 'vendor/github.com/minio/minio-go/v7/api-get-object-file.go')
-rw-r--r--vendor/github.com/minio/minio-go/v7/api-get-object-file.go127
1 files changed, 127 insertions, 0 deletions
diff --git a/vendor/github.com/minio/minio-go/v7/api-get-object-file.go b/vendor/github.com/minio/minio-go/v7/api-get-object-file.go
new file mode 100644
index 00000000..bccff457
--- /dev/null
+++ b/vendor/github.com/minio/minio-go/v7/api-get-object-file.go
@@ -0,0 +1,127 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2015-2017 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+ "context"
+ "io"
+ "os"
+ "path/filepath"
+
+ "github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// FGetObject - download contents of an object to a local file.
+// The options can be used to specify the GET request further.
+func (c Client) FGetObject(ctx context.Context, bucketName, objectName, filePath string, opts GetObjectOptions) error {
+ // Input validation.
+ if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+ return err
+ }
+ if err := s3utils.CheckValidObjectName(objectName); err != nil {
+ return err
+ }
+
+ // Verify if destination already exists.
+ st, err := os.Stat(filePath)
+ if err == nil {
+ // If the destination exists and is a directory.
+ if st.IsDir() {
+ return errInvalidArgument("fileName is a directory.")
+ }
+ }
+
+ // Proceed if file does not exist. return for all other errors.
+ if err != nil {
+ if !os.IsNotExist(err) {
+ return err
+ }
+ }
+
+ // Extract top level directory.
+ objectDir, _ := filepath.Split(filePath)
+ if objectDir != "" {
+ // Create any missing top level directories.
+ if err := os.MkdirAll(objectDir, 0700); err != nil {
+ return err
+ }
+ }
+
+ // Gather md5sum.
+ objectStat, err := c.StatObject(ctx, bucketName, objectName, StatObjectOptions(opts))
+ if err != nil {
+ return err
+ }
+
+ // Write to a temporary file "fileName.part.minio" before saving.
+ filePartPath := filePath + objectStat.ETag + ".part.minio"
+
+ // If exists, open in append mode. If not create it as a part file.
+ filePart, err := os.OpenFile(filePartPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
+ if err != nil {
+ return err
+ }
+
+ // If we return early with an error, be sure to close and delete
+ // filePart. If we have an error along the way there is a chance
+ // that filePart is somehow damaged, and we should discard it.
+ closeAndRemove := true
+ defer func() {
+ if closeAndRemove {
+ _ = filePart.Close()
+ _ = os.Remove(filePartPath)
+ }
+ }()
+
+ // Issue Stat to get the current offset.
+ st, err = filePart.Stat()
+ if err != nil {
+ return err
+ }
+
+ // Initialize get object request headers to set the
+ // appropriate range offsets to read from.
+ if st.Size() > 0 {
+ opts.SetRange(st.Size(), 0)
+ }
+
+ // Seek to current position for incoming reader.
+ objectReader, objectStat, _, err := c.getObject(ctx, bucketName, objectName, opts)
+ if err != nil {
+ return err
+ }
+
+ // Write to the part file.
+ if _, err = io.CopyN(filePart, objectReader, objectStat.Size); err != nil {
+ return err
+ }
+
+ // Close the file before rename, this is specifically needed for Windows users.
+ closeAndRemove = false
+ if err = filePart.Close(); err != nil {
+ return err
+ }
+
+ // Safely completed. Now commit by renaming to actual filename.
+ if err = os.Rename(filePartPath, filePath); err != nil {
+ return err
+ }
+
+ // Return.
+ return nil
+}