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// Copyright 2020 Northern.tech AS
//
// 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 artifact
import (
"archive/tar"
"io"
"os"
"github.com/pkg/errors"
)
type FileArchiver struct {
*tar.Writer
}
func NewTarWriterFile(tw *tar.Writer) *FileArchiver {
w := FileArchiver{
Writer: tw,
}
return &w
}
func (fa *FileArchiver) Write(f *os.File, archivePath string) error {
info, err := f.Stat()
if err != nil {
return err
}
hdr, err := tar.FileInfoHeader(info, "")
if err != nil {
return errors.Wrapf(err, "arch: invalid file info header")
}
hdr.Name = archivePath
if err = fa.Writer.WriteHeader(hdr); err != nil {
return errors.Wrapf(err, "arch: error writing header")
}
if _, err := io.Copy(fa.Writer, f); err != nil {
return errors.Wrapf(err, "writer: can not tar header")
}
return nil
}
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