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Correct tarsum finish logic

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Tarsum now correctly closes the internal TarWriter which appends
a block of 1024 zeros to the end of the returned archive.

Signed-off-by: Josh Hawn <josh.hawn@docker.com>
This commit is contained in:
Josh Hawn 2014-09-15 23:52:06 -07:00
parent ed3d01687d
commit 96721b293c
2 changed files with 80 additions and 0 deletions
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6
tarsum/tarsum.go
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@ -148,6 +148,12 @@ func (ts *tarSum) Read(buf []byte) (int, error) {
currentHeader, err := ts.tarR.Next()
if err != nil {
if err == io.EOF {
if err := ts.tarW.Close(); err != nil {
return 0, err
}
if _, err := io.Copy(ts.gz, ts.bufTar); err != nil {
return 0, err
}
if err := ts.gz.Close(); err != nil {
return 0, err
}