fe963ae0a3
This removes the Export method in nar-bridge, and updates all users to the version now in storev1pb. It moves the roundtrip test to the importer crate, and some of the utility functions into a separate util_test.go file. Change-Id: I81d9e0b35dfd78ef1042bed307281eecd2aaa2a8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9603 Reviewed-by: Brian McGee <brian@bmcgee.ie> Tested-by: BuildkiteCI
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
package importer_test
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import (
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"bytes"
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"context"
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"encoding/base64"
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"fmt"
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"io"
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"os"
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"testing"
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castorev1pb "code.tvl.fyi/tvix/castore/protos"
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"code.tvl.fyi/tvix/nar-bridge/pkg/importer"
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storev1pb "code.tvl.fyi/tvix/store/protos"
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"github.com/stretchr/testify/require"
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)
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func TestRoundtrip(t *testing.T) {
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// We pipe nar_1094wph9z4nwlgvsd53abfz8i117ykiv5dwnq9nnhz846s7xqd7d.nar to
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// storev1pb.Export, and store all the file contents and directory objects
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// received in two hashmaps.
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// We then feed it to the writer, and test we come up with the same NAR file.
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f, err := os.Open("../../testdata/nar_1094wph9z4nwlgvsd53abfz8i117ykiv5dwnq9nnhz846s7xqd7d.nar")
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require.NoError(t, err)
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narContents, err := io.ReadAll(f)
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require.NoError(t, err)
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blobsMap := make(map[string][]byte, 0)
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directoriesMap := make(map[string]*castorev1pb.Directory)
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pathInfo, err := importer.Import(
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context.Background(),
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bytes.NewBuffer(narContents),
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func(blobReader io.Reader) ([]byte, error) {
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// read in contents, we need to put it into filesMap later.
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contents, err := io.ReadAll(blobReader)
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require.NoError(t, err)
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dgst := mustBlobDigest(bytes.NewReader(contents))
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// put it in filesMap
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blobsMap[base64.StdEncoding.EncodeToString(dgst)] = contents
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return dgst, nil
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},
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func(directory *castorev1pb.Directory) ([]byte, error) {
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dgst := mustDirectoryDigest(directory)
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directoriesMap[base64.StdEncoding.EncodeToString(dgst)] = directory
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return dgst, nil
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},
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)
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require.NoError(t, err)
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// done populating everything, now actually test the export :-)
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var buf bytes.Buffer
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err = storev1pb.Export(
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&buf,
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pathInfo,
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func(directoryDgst []byte) (*castorev1pb.Directory, error) {
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d, found := directoriesMap[base64.StdEncoding.EncodeToString(directoryDgst)]
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if !found {
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panic(fmt.Sprintf("directory %v not found", base64.StdEncoding.EncodeToString(directoryDgst)))
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}
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return d, nil
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},
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func(blobDgst []byte) (io.ReadCloser, error) {
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blobContents, found := blobsMap[base64.StdEncoding.EncodeToString(blobDgst)]
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if !found {
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panic(fmt.Sprintf("blob %v not found", base64.StdEncoding.EncodeToString(blobDgst)))
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}
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return io.NopCloser(bytes.NewReader(blobContents)), nil
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},
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)
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require.NoError(t, err, "exporter shouldn't fail")
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require.Equal(t, narContents, buf.Bytes())
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}
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