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Add tests cementing the DM-level behavior on simple paths

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This commit is contained in:
Peter Rabbitson
2021-11-24 15:31:15 +01:00
parent 210485d800
commit 46937a1b9f
4 changed files with 273 additions and 4 deletions
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node/impl/client/client.go
+16 -4
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@@ -966,10 +966,6 @@ func (a *API) ClientExportInto(ctx context.Context, exportRef api.ExportRef, car
}
dserv := merkledag.NewDAGService(blockservice.New(retrievalBs, offline.Exchange(retrievalBs)))
roots, err := parseDagSpec(ctx, exportRef.Root, exportRef.DAGs, dserv, !car)
if err != nil {
return xerrors.Errorf("parsing dag spec: %w", err)
}
// Are we outputting a CAR?
if car {
@@ -978,6 +974,22 @@ func (a *API) ClientExportInto(ctx context.Context, exportRef api.ExportRef, car
return carv2.ExtractV1File(carPath, dest.Path)
}
// if this is a path-selector, the user expects the car to start from the
// root they asked for ( full merkle proof, no heuristic )
if len(exportRef.DAGs) == 1 && exportRef.DAGs[0].DataSelector != nil && !strings.HasPrefix(string(*exportRef.DAGs[0].DataSelector), "{") {
sel, err := getDataSelector(exportRef.DAGs[0].DataSelector)
if err != nil {
return xerrors.Errorf("parsing dag spec: %w", err)
}
return a.outputCAR(ctx, []dagSpec{{root: exportRef.Root, selector: sel}}, retrievalBs, dest)
}
}
roots, err := parseDagSpec(ctx, exportRef.Root, exportRef.DAGs, dserv, !car)
if err != nil {
return xerrors.Errorf("parsing dag spec: %w", err)
}
if car {
return a.outputCAR(ctx, roots, retrievalBs, dest)
}