TrueCloudLab/restic
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panic if hash returns an error

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Add a sanity check that the interface contract is honoured.
This commit is contained in:
Michael Eischer 2021-01-29 22:12:51 +01:00
parent 51b7e3119b
commit 7c1903e1ee
4 changed files with 16 additions and 4 deletions
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5
internal/backend/mem/mem_backend.go
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@ -91,7 +91,10 @@ func (be *MemoryBackend) Save(ctx context.Context, h restic.Handle, rd restic.Re
beHash := be.Hasher()
// must never fail according to interface
_, _ = beHash.Write(buf)
_, err = beHash.Write(buf)
if err != nil {
panic(err)
}
if !bytes.Equal(beHash.Sum(nil), rd.Hash()) {
return errors.Errorf("invalid file hash or content, got %s expected %s",
base64.RawStdEncoding.EncodeToString(beHash.Sum(nil)),