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option.go
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option.go
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// Copyright 2018-2021 CERN
//
// 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.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package s3ng
import (
"github.com/mitchellh/mapstructure"
"github.com/pkg/errors"
)
// Option defines a single option function.
type Option func(o *Options)
// Options defines the available options for this package.
type Options struct {
// Endpoint of the s3 blobstore
S3Endpoint string `mapstructure:"s3.endpoint"`
// Region of the s3 blobstore
S3Region string `mapstructure:"s3.region"`
// Bucket of the s3 blobstore
S3Bucket string `mapstructure:"s3.bucket"`
// Access key for the s3 blobstore
S3AccessKey string `mapstructure:"s3.access_key"`
// Secret key for the s3 blobstore
S3SecretKey string `mapstructure:"s3.secret_key"`
// disable sending content sha256
DisableContentSha256 bool `mapstructure:"s3.disable_content_sha254"`
// disable multipart uploads
DisableMultipart bool `mapstructure:"s3.disable_multipart"`
// enable sending content md5, defaults to true if unset
SendContentMd5 bool `mapstructure:"s3.send_content_md5"`
// use concurrent stream parts
ConcurrentStreamParts bool `mapstructure:"s3.concurrent_stream_parts"`
// number of concurrent uploads
NumThreads uint `mapstructure:"s3.num_threads"`
// part size for concurrent uploads
PartSize uint64 `mapstructure:"s3.part_size"`
}
// S3ConfigComplete return true if all required s3 fields are set
func (o *Options) S3ConfigComplete() bool {
return o.S3Endpoint != "" &&
o.S3Region != "" &&
o.S3Bucket != "" &&
o.S3AccessKey != "" &&
o.S3SecretKey != ""
}
func parseConfig(m map[string]interface{}) (*Options, error) {
o := &Options{}
if err := mapstructure.Decode(m, o); err != nil {
err = errors.Wrap(err, "error decoding conf")
return nil, err
}
// if unset we set these defaults
if m["s3.send_content_md5"] == nil {
o.SendContentMd5 = true
}
if m["s3.concurrent_stream_parts"] == nil {
o.ConcurrentStreamParts = true
}
if m["s3.num_threads"] == nil {
o.NumThreads = 4
}
return o, nil
}