1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
package http
import (
"fmt"
storev1pb "code.tvl.fyi/tvix/store-go"
mh "github.com/multiformats/go-multihash/core"
nixhash "github.com/nix-community/go-nix/pkg/hash"
"github.com/nix-community/go-nix/pkg/narinfo"
"github.com/nix-community/go-nix/pkg/narinfo/signature"
"github.com/nix-community/go-nix/pkg/nixbase32"
)
// ToNixNarInfo converts the PathInfo to a narinfo.NarInfo.
func ToNixNarInfo(p *storev1pb.PathInfo) (*narinfo.NarInfo, error) {
// ensure the PathInfo is valid, and extract the StorePath from the node in
// there.
storePath, err := p.Validate()
if err != nil {
return nil, fmt.Errorf("failed to validate PathInfo: %w", err)
}
// convert the signatures from storev1pb signatures to narinfo signatures
narinfoSignatures := make([]signature.Signature, len(p.GetNarinfo().GetSignatures()))
for i, pathInfoSignature := range p.GetNarinfo().GetSignatures() {
narinfoSignatures[i] = signature.Signature{
Name: pathInfoSignature.GetName(),
Data: pathInfoSignature.GetData(),
}
}
// produce nixhash for the narsha256.
narHash, err := nixhash.FromHashTypeAndDigest(
mh.SHA2_256,
p.GetNarinfo().GetNarSha256(),
)
if err != nil {
return nil, fmt.Errorf("invalid narsha256: %w", err)
}
return &narinfo.NarInfo{
StorePath: storePath.Absolute(),
URL: "nar/" + nixbase32.EncodeToString(narHash.Digest()) + ".nar",
Compression: "none",
NarHash: narHash,
NarSize: uint64(p.GetNarinfo().GetNarSize()),
References: p.GetNarinfo().GetReferenceNames(),
Signatures: narinfoSignatures,
}, nil
}
|
