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Add Stat() method to backend interface

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This commit is contained in:
Alexander Neumann 2016-01-23 23:27:58 +01:00
parent 10b03eee27
commit 919b40c6cf
7 changed files with 97 additions and 0 deletions
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19
backend/s3/s3.go
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@ -191,6 +191,25 @@ func (be S3Backend) Load(h backend.Handle, p []byte, off int64) (int, error) {
return io.ReadFull(obj, p)
}
// Stat returns information about a blob.
func (be S3Backend) Stat(h backend.Handle) (backend.BlobInfo, error) {
debug.Log("s3.Stat", "%v")
path := s3path(h.Type, h.Name)
obj, err := be.client.GetObject(be.bucketname, path)
if err != nil {
debug.Log("s3.Stat", "GetObject() err %v", err)
return backend.BlobInfo{}, err
}
fi, err := obj.Stat()
if err != nil {
debug.Log("s3.Stat", "Stat() err %v", err)
return backend.BlobInfo{}, err
}
return backend.BlobInfo{Size: fi.Size}, nil
}
// Test returns true if a blob of the given type and name exists in the backend.
func (be *S3Backend) Test(t backend.Type, name string) (bool, error) {
found := false