53 lines
1.1 KiB
Go
53 lines
1.1 KiB
Go
/*
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Copyright 2018 Google LLC
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 util
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import (
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"archive/tar"
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"io"
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"os"
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)
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// AddToTar adds the file i to tar w at path p
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func AddToTar(p string, i os.FileInfo, w *tar.Writer) error {
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linkDst := ""
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if i.Mode()&os.ModeSymlink != 0 {
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var err error
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linkDst, err = os.Readlink(p)
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if err != nil {
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return err
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}
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}
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hdr, err := tar.FileInfoHeader(i, linkDst)
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if err != nil {
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return err
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}
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hdr.Name = p
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w.WriteHeader(hdr)
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if !i.Mode().IsRegular() {
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return nil
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}
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r, err := os.Open(p)
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if err != nil {
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return err
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}
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if _, err := io.Copy(w, r); err != nil {
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return err
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}
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return nil
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}
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