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chore(tvix): move store golang bindings to tvix/store-go

Browse source 
Similar to the castore-go CL before, this also updates the store-go
bindings to the new layout.

Change-Id: Id73d7ad43f7d70171ab021728e303300c5db71f0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9788
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This commit is contained in:
Florian Klink 2023-10-17 13:42:58 +01:00 • committed by flokli
parent e38733a955
commit 1b26bf21e3
20 changed files with 95 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

21
tvix/store-go/LICENSE Normal file
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Copyright © The Tvix Authors
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
“Software”), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

10
tvix/store-go/README.md Normal file
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# store-go
This directory contains generated golang bindings, both for the tvix-store data
models, as well as the gRPC bindings.
They are generated with `mg run //tvix:store-go-generate`.
These files end with `.pb.go`, and are ensured to be up to date by Ci check.
Additionally, code useful when interacting with these data structures
(ending just with `.go`) is provided.

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tvix/store-go/default.nix Normal file
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{ depot, pkgs, ... }:
(pkgs.buildGoModule {
name = "store-go";
src = depot.third_party.gitignoreSource ./.;
vendorHash = "sha256-WAYaIT3h3Cdvo1RB8T7DuoxeKvXfkq8vo/vdkhJQDs0=";
}).overrideAttrs (_: {
meta.ci.extraSteps = {
check = {
label = ":water_buffalo: ensure generated protobuf files match";
needsOutput = true;
command = pkgs.writeShellScript "pb-go-check" ''
${depot.tvix.store-go-generate}
if [[ -n "$(git status --porcelain -unormal)" ]]; then
echo "-----------------------------"
echo ".pb.go files need to be updated, run //tvix:store-go-generate"
echo "-----------------------------"
git status -unormal
exit 1
fi
'';
alwaysRun = true;
};
};
})

273
tvix/store-go/export.go Normal file
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package storev1
import (
"fmt"
"io"
"path"
castorev1pb "code.tvl.fyi/tvix/castore/protos"
"github.com/nix-community/go-nix/pkg/nar"
)
type DirectoryLookupFn func([]byte) (*castorev1pb.Directory, error)
type BlobLookupFn func([]byte) (io.ReadCloser, error)
// Export will traverse a given root node, and write the contents in NAR format
// to the passed Writer.
// It uses directoryLookupFn and blobLookupFn to resolve references.
func Export(
w io.Writer,
rootNode *castorev1pb.Node,
directoryLookupFn DirectoryLookupFn,
blobLookupFn BlobLookupFn,
) error {
// initialize a NAR writer
narWriter, err := nar.NewWriter(w)
if err != nil {
return fmt.Errorf("unable to initialize nar writer: %w", err)
}
defer narWriter.Close()
// populate rootHeader
rootHeader := &nar.Header{
Path: "/",
}
// populate a stack
// we will push paths and directories to it when entering a directory,
// and emit individual elements to the NAR writer, draining the Directory object.
// once it's empty, we can pop it off the stack.
var stackPaths = []string{}
var stackDirectories = []*castorev1pb.Directory{}
// peek at the pathInfo root and assemble the root node and write to writer
// in the case of a regular file, we retrieve and write the contents, close and exit
// in the case of a symlink, we write the symlink, close and exit
if fileNode := rootNode.GetFile(); fileNode != nil {
rootHeader.Type = nar.TypeRegular
rootHeader.Size = int64(fileNode.GetSize())
rootHeader.Executable = fileNode.GetExecutable()
err := narWriter.WriteHeader(rootHeader)
if err != nil {
return fmt.Errorf("unable to write root header: %w", err)
}
// if it's a regular file, retrieve and write the contents
blobReader, err := blobLookupFn(fileNode.GetDigest())
if err != nil {
return fmt.Errorf("unable to lookup blob: %w", err)
}
defer blobReader.Close()
_, err = io.Copy(narWriter, blobReader)
if err != nil {
return fmt.Errorf("unable to read from blobReader: %w", err)
}
err = blobReader.Close()
if err != nil {
return fmt.Errorf("unable to close content reader: %w", err)
}
err = narWriter.Close()
if err != nil {
return fmt.Errorf("unable to close nar reader: %w", err)
}
return nil
} else if symlinkNode := rootNode.GetSymlink(); symlinkNode != nil {
rootHeader.Type = nar.TypeSymlink
rootHeader.LinkTarget = string(symlinkNode.GetTarget())
err := narWriter.WriteHeader(rootHeader)
if err != nil {
return fmt.Errorf("unable to write root header: %w", err)
}
err = narWriter.Close()
if err != nil {
return fmt.Errorf("unable to close nar reader: %w", err)
}
} else if directoryNode := rootNode.GetDirectory(); directoryNode != nil {
// We have a directory at the root, look it up and put in on the stack.
directory, err := directoryLookupFn(directoryNode.GetDigest())
if err != nil {
return fmt.Errorf("unable to lookup directory: %w", err)
}
stackDirectories = append(stackDirectories, directory)
stackPaths = append(stackPaths, "/")
err = narWriter.WriteHeader(&nar.Header{
Path: "/",
Type: nar.TypeDirectory,
})
if err != nil {
return fmt.Errorf("error writing header: %w", err)
}
} else {
panic("invalid type") // unreachable
}
// as long as the stack is not empty, we keep running.
for {
if len(stackDirectories) == 0 {
return nil
}
// Peek at the current top of the stack.
topOfStack := stackDirectories[len(stackDirectories)-1]
topOfStackPath := stackPaths[len(stackPaths)-1]
// get the next element that's lexicographically smallest, and drain it from
// the current directory on top of the stack.
nextNode := drainNextNode(topOfStack)
// If nextNode returns nil, there's nothing left in the directory node, so we
// can emit it from the stack.
// Contrary to the import case, we don't emit the node popping from the stack, but when pushing.
if nextNode == nil {
// pop off stack
stackDirectories = stackDirectories[:len(stackDirectories)-1]
stackPaths = stackPaths[:len(stackPaths)-1]
continue
}
switch n := (nextNode).(type) {
case *castorev1pb.DirectoryNode:
err := narWriter.WriteHeader(&nar.Header{
Path: path.Join(topOfStackPath, string(n.GetName())),
Type: nar.TypeDirectory,
})
if err != nil {
return fmt.Errorf("unable to write nar header: %w", err)
}
d, err := directoryLookupFn(n.GetDigest())
if err != nil {
return fmt.Errorf("unable to lookup directory: %w", err)
}
// add to stack
stackDirectories = append(stackDirectories, d)
stackPaths = append(stackPaths, path.Join(topOfStackPath, string(n.GetName())))
case *castorev1pb.FileNode:
err := narWriter.WriteHeader(&nar.Header{
Path: path.Join(topOfStackPath, string(n.GetName())),
Type: nar.TypeRegular,
Size: int64(n.GetSize()),
Executable: n.GetExecutable(),
})
if err != nil {
return fmt.Errorf("unable to write nar header: %w", err)
}
// copy file contents
contentReader, err := blobLookupFn(n.GetDigest())
if err != nil {
return fmt.Errorf("unable to get blob: %w", err)
}
defer contentReader.Close()
_, err = io.Copy(narWriter, contentReader)
if err != nil {
return fmt.Errorf("unable to copy contents from contentReader: %w", err)
}
err = contentReader.Close()
if err != nil {
return fmt.Errorf("unable to close content reader: %w", err)
}
case *castorev1pb.SymlinkNode:
err := narWriter.WriteHeader(&nar.Header{
Path: path.Join(topOfStackPath, string(n.GetName())),
Type: nar.TypeSymlink,
LinkTarget: string(n.GetTarget()),
})
if err != nil {
return fmt.Errorf("unable to write nar header: %w", err)
}
}
}
}
// drainNextNode will drain a directory message with one of its child nodes,
// whichever comes first alphabetically.
func drainNextNode(d *castorev1pb.Directory) interface{} {
switch v := (smallestNode(d)).(type) {
case *castorev1pb.DirectoryNode:
d.Directories = d.Directories[1:]
return v
case *castorev1pb.FileNode:
d.Files = d.Files[1:]
return v
case *castorev1pb.SymlinkNode:
d.Symlinks = d.Symlinks[1:]
return v
case nil:
return nil
default:
panic("invalid type encountered")
}
}
// smallestNode will return the node from a directory message,
// whichever comes first alphabetically.
func smallestNode(d *castorev1pb.Directory) interface{} {
childDirectories := d.GetDirectories()
childFiles := d.GetFiles()
childSymlinks := d.GetSymlinks()
if len(childDirectories) > 0 {
if len(childFiles) > 0 {
if len(childSymlinks) > 0 {
// directories,files,symlinks
return smallerNode(smallerNode(childDirectories[0], childFiles[0]), childSymlinks[0])
} else {
// directories,files,!symlinks
return smallerNode(childDirectories[0], childFiles[0])
}
} else {
// directories,!files
if len(childSymlinks) > 0 {
// directories,!files,symlinks
return smallerNode(childDirectories[0], childSymlinks[0])
} else {
// directories,!files,!symlinks
return childDirectories[0]
}
}
} else {
// !directories
if len(childFiles) > 0 {
// !directories,files
if len(childSymlinks) > 0 {
// !directories,files,symlinks
return smallerNode(childFiles[0], childSymlinks[0])
} else {
// !directories,files,!symlinks
return childFiles[0]
}
} else {
//!directories,!files
if len(childSymlinks) > 0 {
//!directories,!files,symlinks
return childSymlinks[0]
} else {
//!directories,!files,!symlinks
return nil
}
}
}
}
// smallerNode compares two nodes by their name,
// and returns the one with the smaller name.
// both nodes may not be nil, we do check for these cases in smallestNode.
func smallerNode(a interface{ GetName() []byte }, b interface{ GetName() []byte }) interface{ GetName() []byte } {
if string(a.GetName()) < string(b.GetName()) {
return a
} else {
return b
}
}

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tvix/store-go/export_test.go Normal file
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package storev1_test
import (
"bytes"
"io"
"os"
"testing"
castorev1pb "code.tvl.fyi/tvix/castore/protos"
storev1pb "code.tvl.fyi/tvix/store/protos"
"github.com/stretchr/testify/require"
)
func mustDirectoryDigest(d *castorev1pb.Directory) []byte {
dgst, err := d.Digest()
if err != nil {
panic(err)
}
return dgst
}
func TestSymlink(t *testing.T) {
node := &castorev1pb.Node{
Node: &castorev1pb.Node_Symlink{
Symlink: &castorev1pb.SymlinkNode{
Name: []byte("doesntmatter"),
Target: []byte("/nix/store/somewhereelse"),
},
},
}
var buf bytes.Buffer
err := storev1pb.Export(&buf, node, func([]byte) (*castorev1pb.Directory, error) {
panic("no directories expected")
}, func([]byte) (io.ReadCloser, error) {
panic("no files expected")
})
require.NoError(t, err, "exporter shouldn't fail")
f, err := os.Open("testdata/symlink.nar")
require.NoError(t, err)
bytesExpected, err := io.ReadAll(f)
if err != nil {
panic(err)
}
require.Equal(t, bytesExpected, buf.Bytes(), "expected nar contents to match")
}
func TestRegular(t *testing.T) {
// The blake3 digest of the 0x01 byte.
BLAKE3_DIGEST_0X01 := []byte{
0x48, 0xfc, 0x72, 0x1f, 0xbb, 0xc1, 0x72, 0xe0, 0x92, 0x5f, 0xa2, 0x7a, 0xf1, 0x67, 0x1d,
0xe2, 0x25, 0xba, 0x92, 0x71, 0x34, 0x80, 0x29, 0x98, 0xb1, 0x0a, 0x15, 0x68, 0xa1, 0x88,
0x65, 0x2b,
}
node := &castorev1pb.Node{
Node: &castorev1pb.Node_File{
File: &castorev1pb.FileNode{
Name: []byte("doesntmatter"),
Digest: BLAKE3_DIGEST_0X01,
Size: 1,
Executable: false,
},
},
}
var buf bytes.Buffer
err := storev1pb.Export(&buf, node, func([]byte) (*castorev1pb.Directory, error) {
panic("no directories expected")
}, func(blobRef []byte) (io.ReadCloser, error) {
if !bytes.Equal(blobRef, BLAKE3_DIGEST_0X01) {
panic("unexpected blobref")
}
return io.NopCloser(bytes.NewBuffer([]byte{0x01})), nil
})
require.NoError(t, err, "exporter shouldn't fail")
f, err := os.Open("testdata/onebyteregular.nar")
require.NoError(t, err)
bytesExpected, err := io.ReadAll(f)
if err != nil {
panic(err)
}
require.Equal(t, bytesExpected, buf.Bytes(), "expected nar contents to match")
}
func TestEmptyDirectory(t *testing.T) {
// construct empty directory node this refers to
emptyDirectory := &castorev1pb.Directory{
Directories: []*castorev1pb.DirectoryNode{},
Files: []*castorev1pb.FileNode{},
Symlinks: []*castorev1pb.SymlinkNode{},
}
emptyDirectoryDigest := mustDirectoryDigest(emptyDirectory)
node := &castorev1pb.Node{
Node: &castorev1pb.Node_Directory{
Directory: &castorev1pb.DirectoryNode{
Name: []byte("doesntmatter"),
Digest: emptyDirectoryDigest,
Size: 0,
},
},
}
var buf bytes.Buffer
err := storev1pb.Export(&buf, node, func(directoryRef []byte) (*castorev1pb.Directory, error) {
if !bytes.Equal(directoryRef, emptyDirectoryDigest) {
panic("unexpected directoryRef")
}
return emptyDirectory, nil
}, func([]byte) (io.ReadCloser, error) {
panic("no files expected")
})
require.NoError(t, err, "exporter shouldn't fail")
f, err := os.Open("testdata/emptydirectory.nar")
require.NoError(t, err)
bytesExpected, err := io.ReadAll(f)
if err != nil {
panic(err)
}
require.Equal(t, bytesExpected, buf.Bytes(), "expected nar contents to match")
}

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tvix/store-go/go.mod Normal file
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module code.tvl.fyi/tvix/store/protos
go 1.19
require (
code.tvl.fyi/tvix/castore/protos v0.0.0-20231014122118-3fc2ade7dfb2
github.com/google/go-cmp v0.5.6
github.com/nix-community/go-nix v0.0.0-20231009143713-ebca3299475b
github.com/stretchr/testify v1.8.1
google.golang.org/grpc v1.51.0
google.golang.org/protobuf v1.31.0
)
require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/golang/protobuf v1.5.2 // indirect
github.com/klauspost/cpuid/v2 v2.0.9 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
golang.org/x/net v0.7.0 // indirect
golang.org/x/sys v0.5.0 // indirect
golang.org/x/text v0.7.0 // indirect
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
lukechampine.com/blake3 v1.1.7 // indirect
)

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tvix/store-go/go.sum Normal file
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cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
code.tvl.fyi/tvix/castore/protos v0.0.0-20231014122118-3fc2ade7dfb2 h1:Z5GS8OUe7L/hKDbb1amArY7QgX0DSD5xaBwWxmh4H3Y=
code.tvl.fyi/tvix/castore/protos v0.0.0-20231014122118-3fc2ade7dfb2/go.mod h1:hj0y8RPthqn1QPj8u2jFe2vzH7NouUoclrwo1/CSbuc=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/klauspost/cpuid/v2 v2.0.9 h1:lgaqFMSdTdQYdZ04uHyN2d/eKdOMyi2YLSvlQIBFYa4=
github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
github.com/nix-community/go-nix v0.0.0-20231009143713-ebca3299475b h1:AWEKOdDO3JnHApQDOmONEKLXbMCQJhYJJfJpiWB9VGI=
github.com/nix-community/go-nix v0.0.0-20231009143713-ebca3299475b/go.mod h1:hHM9UK2zOCjvmiLgeaW4LVbOW/vBaRWFJGzfi31/slQ=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
lukechampine.com/blake3 v1.1.7 h1:GgRMhmdsuK8+ii6UZFDL8Nb+VyMwadAgcJyfYHxG6n0=
lukechampine.com/blake3 v1.1.7/go.mod h1:tkKEOtDkNtklkXtLNEOGNq5tcV90tJiA1vAA12R78LA=

99
tvix/store-go/pathinfo.go Normal file
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@ -0,0 +1,99 @@
package storev1
import (
"bytes"
"crypto/sha256"
"encoding/base64"
"fmt"
"github.com/nix-community/go-nix/pkg/storepath"
)
// Validate performs some checks on the PathInfo struct, returning either the
// StorePath of the root node, or an error.
func (p *PathInfo) Validate() (*storepath.StorePath, error) {
// ensure References has the right number of bytes.
for i, reference := range p.GetReferences() {
if len(reference) != storepath.PathHashSize {
return nil, fmt.Errorf("invalid length of digest at position %d, expected %d, got %d", i, storepath.PathHashSize, len(reference))
}
}
// If there's a Narinfo field populated..
if narInfo := p.GetNarinfo(); narInfo != nil {
// ensure the NarSha256 digest has the correct length.
if len(narInfo.GetNarSha256()) != sha256.Size {
return nil, fmt.Errorf("invalid number of bytes for NarSha256: expected %d, got %d", sha256.Size, len(narInfo.GetNarSha256()))
}
// ensure the number of references matches len(References).
if len(narInfo.GetReferenceNames()) != len(p.GetReferences()) {
return nil, fmt.Errorf("inconsistent number of references: %d (references) vs %d (narinfo)", len(narInfo.GetReferenceNames()), len(p.GetReferences()))
}
// for each ReferenceName…
for i, referenceName := range narInfo.GetReferenceNames() {
// ensure it parses to a store path
storePath, err := storepath.FromString(referenceName)
if err != nil {
return nil, fmt.Errorf("invalid ReferenceName at position %d: %w", i, err)
}
// ensure the digest matches the one at References[i]
if !bytes.Equal(p.GetReferences()[i], storePath.Digest) {
return nil, fmt.Errorf(
"digest in ReferenceName at position %d does not match digest in PathInfo, expected %s, got %s",
i,
base64.StdEncoding.EncodeToString(p.GetReferences()[i]),
base64.StdEncoding.EncodeToString(storePath.Digest),
)
}
}
}
// ensure there is a (root) node present
rootNode := p.GetNode()
if rootNode == nil {
return nil, fmt.Errorf("root node must be set")
}
if err := rootNode.Validate(); err != nil {
return nil, fmt.Errorf("root node failed validation: %w", err)
}
// for all three node types, ensure the name properly parses to a store path.
// This is a stricter check as the ones already performed in the rootNode.Validate() call.
var rootNodeName []byte
if node := rootNode.GetDirectory(); node != nil {
rootNodeName = node.GetName()
} else if node := rootNode.GetFile(); node != nil {
rootNodeName = node.GetName()
} else if node := rootNode.GetSymlink(); node != nil {
rootNodeName = node.GetName()
} else {
// already caught by rootNode.Validate()
panic("unreachable")
}
storePath, err := storepath.FromString(string(rootNodeName))
if err != nil {
return nil, fmt.Errorf("unable to parse root node name %s as StorePath: %w", rootNodeName, err)
}
// If the Deriver field is populated, ensure it parses to a StorePath.
// We can't check for it to *not* end with .drv, as the .drv files produced by
// recursive Nix end with multiple .drv suffixes, and only one is popped when
// converting to this field.
if p.Deriver != nil {
deriverStorePath := storepath.StorePath{
Name: string(p.Deriver.GetName()),
Digest: p.Deriver.GetDigest(),
}
if err := deriverStorePath.Validate(); err != nil {
return nil, fmt.Errorf("invalid deriver field: %w", err)
}
}
return storePath, nil
}

460
tvix/store-go/pathinfo.pb.go Normal file
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@ -0,0 +1,460 @@
// SPDX-License-Identifier: MIT
// Copyright © 2022 The Tvix Authors
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.31.0
// protoc (unknown)
// source: tvix/store/protos/pathinfo.proto
package storev1
import (
protos "code.tvl.fyi/tvix/castore/protos"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// PathInfo shows information about a Nix Store Path.
// That's a single element inside /nix/store.
type PathInfo struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The path can be a directory, file or symlink.
Node *protos.Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
// List of references (output path hashes)
// This really is the raw *bytes*, after decoding nixbase32, and not a
// base32-encoded string.
References [][]byte `protobuf:"bytes,2,rep,name=references,proto3" json:"references,omitempty"`
// see below.
Narinfo *NARInfo `protobuf:"bytes,3,opt,name=narinfo,proto3" json:"narinfo,omitempty"`
// The StorePath of the .drv file producing this output.
// The .drv suffix is omitted in its `name` field.
Deriver *StorePath `protobuf:"bytes,4,opt,name=deriver,proto3" json:"deriver,omitempty"`
}
func (x *PathInfo) Reset() {
*x = PathInfo{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *PathInfo) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*PathInfo) ProtoMessage() {}
func (x *PathInfo) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use PathInfo.ProtoReflect.Descriptor instead.
func (*PathInfo) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_pathinfo_proto_rawDescGZIP(), []int{0}
}
func (x *PathInfo) GetNode() *protos.Node {
if x != nil {
return x.Node
}
return nil
}
func (x *PathInfo) GetReferences() [][]byte {
if x != nil {
return x.References
}
return nil
}
func (x *PathInfo) GetNarinfo() *NARInfo {
if x != nil {
return x.Narinfo
}
return nil
}
func (x *PathInfo) GetDeriver() *StorePath {
if x != nil {
return x.Deriver
}
return nil
}
// Represents a path in the Nix store (a direct child of STORE_DIR).
// It is commonly formatted by a nixbase32-encoding the digest, and
// concatenating the name, separated by a `-`.
type StorePath struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The string after digest and `-`.
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
// The digest (20 bytes).
Digest []byte `protobuf:"bytes,2,opt,name=digest,proto3" json:"digest,omitempty"`
}
func (x *StorePath) Reset() {
*x = StorePath{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *StorePath) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*StorePath) ProtoMessage() {}
func (x *StorePath) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use StorePath.ProtoReflect.Descriptor instead.
func (*StorePath) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_pathinfo_proto_rawDescGZIP(), []int{1}
}
func (x *StorePath) GetName() string {
if x != nil {
return x.Name
}
return ""
}
func (x *StorePath) GetDigest() []byte {
if x != nil {
return x.Digest
}
return nil
}
// Nix C++ uses NAR (Nix Archive) as a format to transfer store paths,
// and stores metadata and signatures in NARInfo files.
// Store all these attributes in a separate message.
//
// This is useful to render .narinfo files to clients, or to preserve/validate
// these signatures.
// As verifying these signatures requires the whole NAR file to be synthesized,
// moving to another signature scheme is desired.
// Even then, it still makes sense to hold this data, for old clients.
type NARInfo struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// This size of the NAR file, in bytes.
NarSize uint64 `protobuf:"varint,1,opt,name=nar_size,json=narSize,proto3" json:"nar_size,omitempty"`
// The sha256 of the NAR file representation.
NarSha256 []byte `protobuf:"bytes,2,opt,name=nar_sha256,json=narSha256,proto3" json:"nar_sha256,omitempty"`
// The signatures in a .narinfo file.
Signatures []*NARInfo_Signature `protobuf:"bytes,3,rep,name=signatures,proto3" json:"signatures,omitempty"`
// A list of references. To validate .narinfo signatures, a fingerprint
// needs to be constructed.
// This fingerprint doesn't just contain the hashes of the output paths of
// all references (like PathInfo.references), but their whole (base)names,
// so we need to keep them somewhere.
ReferenceNames []string `protobuf:"bytes,4,rep,name=reference_names,json=referenceNames,proto3" json:"reference_names,omitempty"`
}
func (x *NARInfo) Reset() {
*x = NARInfo{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NARInfo) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NARInfo) ProtoMessage() {}
func (x *NARInfo) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use NARInfo.ProtoReflect.Descriptor instead.
func (*NARInfo) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_pathinfo_proto_rawDescGZIP(), []int{2}
}
func (x *NARInfo) GetNarSize() uint64 {
if x != nil {
return x.NarSize
}
return 0
}
func (x *NARInfo) GetNarSha256() []byte {
if x != nil {
return x.NarSha256
}
return nil
}
func (x *NARInfo) GetSignatures() []*NARInfo_Signature {
if x != nil {
return x.Signatures
}
return nil
}
func (x *NARInfo) GetReferenceNames() []string {
if x != nil {
return x.ReferenceNames
}
return nil
}
// This represents a (parsed) signature line in a .narinfo file.
type NARInfo_Signature struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
}
func (x *NARInfo_Signature) Reset() {
*x = NARInfo_Signature{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NARInfo_Signature) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NARInfo_Signature) ProtoMessage() {}
func (x *NARInfo_Signature) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_pathinfo_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use NARInfo_Signature.ProtoReflect.Descriptor instead.
func (*NARInfo_Signature) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_pathinfo_proto_rawDescGZIP(), []int{2, 0}
}
func (x *NARInfo_Signature) GetName() string {
if x != nil {
return x.Name
}
return ""
}
func (x *NARInfo_Signature) GetData() []byte {
if x != nil {
return x.Data
}
return nil
}
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}
var (
file_tvix_store_protos_pathinfo_proto_rawDescOnce sync.Once
file_tvix_store_protos_pathinfo_proto_rawDescData = file_tvix_store_protos_pathinfo_proto_rawDesc
)
func file_tvix_store_protos_pathinfo_proto_rawDescGZIP() []byte {
file_tvix_store_protos_pathinfo_proto_rawDescOnce.Do(func() {
file_tvix_store_protos_pathinfo_proto_rawDescData = protoimpl.X.CompressGZIP(file_tvix_store_protos_pathinfo_proto_rawDescData)
})
return file_tvix_store_protos_pathinfo_proto_rawDescData
}
var file_tvix_store_protos_pathinfo_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
var file_tvix_store_protos_pathinfo_proto_goTypes = []interface{}{
(*PathInfo)(nil), // 0: tvix.store.v1.PathInfo
(*StorePath)(nil), // 1: tvix.store.v1.StorePath
(*NARInfo)(nil), // 2: tvix.store.v1.NARInfo
(*NARInfo_Signature)(nil), // 3: tvix.store.v1.NARInfo.Signature
(*protos.Node)(nil), // 4: tvix.castore.v1.Node
}
var file_tvix_store_protos_pathinfo_proto_depIdxs = []int32{
4, // 0: tvix.store.v1.PathInfo.node:type_name -> tvix.castore.v1.Node
2, // 1: tvix.store.v1.PathInfo.narinfo:type_name -> tvix.store.v1.NARInfo
1, // 2: tvix.store.v1.PathInfo.deriver:type_name -> tvix.store.v1.StorePath
3, // 3: tvix.store.v1.NARInfo.signatures:type_name -> tvix.store.v1.NARInfo.Signature
4, // [4:4] is the sub-list for method output_type
4, // [4:4] is the sub-list for method input_type
4, // [4:4] is the sub-list for extension type_name
4, // [4:4] is the sub-list for extension extendee
0, // [0:4] is the sub-list for field type_name
}
func init() { file_tvix_store_protos_pathinfo_proto_init() }
func file_tvix_store_protos_pathinfo_proto_init() {
if File_tvix_store_protos_pathinfo_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_tvix_store_protos_pathinfo_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*PathInfo); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_pathinfo_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*StorePath); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_pathinfo_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*NARInfo); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_pathinfo_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*NARInfo_Signature); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_tvix_store_protos_pathinfo_proto_rawDesc,
NumEnums: 0,
NumMessages: 4,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_tvix_store_protos_pathinfo_proto_goTypes,
DependencyIndexes: file_tvix_store_protos_pathinfo_proto_depIdxs,
MessageInfos: file_tvix_store_protos_pathinfo_proto_msgTypes,
}.Build()
File_tvix_store_protos_pathinfo_proto = out.File
file_tvix_store_protos_pathinfo_proto_rawDesc = nil
file_tvix_store_protos_pathinfo_proto_goTypes = nil
file_tvix_store_protos_pathinfo_proto_depIdxs = nil
}

149
tvix/store-go/pathinfo_test.go Normal file
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@ -0,0 +1,149 @@
package storev1_test
import (
"path"
"testing"
"github.com/nix-community/go-nix/pkg/storepath"
"github.com/stretchr/testify/assert"
castorev1pb "code.tvl.fyi/tvix/castore/protos"
storev1pb "code.tvl.fyi/tvix/store/protos"
)
const (
EXAMPLE_STORE_PATH = "00bgd045z0d4icpbc2yyz4gx48ak44la-net-tools-1.60_p2017022118243"
)
var (
exampleStorePathDigest = []byte{
0x8a, 0x12, 0x32, 0x15, 0x22, 0xfd, 0x91, 0xef, 0xbd, 0x60, 0xeb, 0xb2, 0x48, 0x1a, 0xf8, 0x85,
0x80, 0xf6, 0x16, 0x00}
)
func genPathInfoSymlink() *storev1pb.PathInfo {
return &storev1pb.PathInfo{
Node: &castorev1pb.Node{
Node: &castorev1pb.Node_Symlink{
Symlink: &castorev1pb.SymlinkNode{
Name: []byte("00000000000000000000000000000000-dummy"),
Target: []byte("/nix/store/somewhereelse"),
},
},
},
References: [][]byte{exampleStorePathDigest},
Narinfo: &storev1pb.NARInfo{
NarSize: 0,
NarSha256: []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
Signatures: []*storev1pb.NARInfo_Signature{},
ReferenceNames: []string{EXAMPLE_STORE_PATH},
},
}
}
func genPathInfoSymlinkThin() *storev1pb.PathInfo {
pi := genPathInfoSymlink()
pi.Narinfo = nil
return pi
}
func TestValidate(t *testing.T) {
t.Run("happy symlink", func(t *testing.T) {
storePath, err := genPathInfoSymlink().Validate()
assert.NoError(t, err, "PathInfo must validate")
assert.Equal(t, "00000000000000000000000000000000-dummy", storePath.String())
})
t.Run("happy symlink thin", func(t *testing.T) {
storePath, err := genPathInfoSymlinkThin().Validate()
assert.NoError(t, err, "PathInfo must validate")
assert.Equal(t, "00000000000000000000000000000000-dummy", storePath.String())
})
t.Run("invalid nar_sha256", func(t *testing.T) {
pi := genPathInfoSymlink()
// create broken references, where the reference digest is wrong
pi.Narinfo.NarSha256 = []byte{0xbe, 0xef}
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("invalid reference digest", func(t *testing.T) {
pi := genPathInfoSymlink()
// create broken references, where the reference digest is wrong
pi.References = append(pi.References, []byte{0x00})
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("invalid reference name", func(t *testing.T) {
pi := genPathInfoSymlink()
// make the reference name an invalid store path
pi.Narinfo.ReferenceNames[0] = "00000000000000000000000000000000-"
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("reference name digest mismatch", func(t *testing.T) {
pi := genPathInfoSymlink()
// cause the digest for the reference to mismatch
pi.Narinfo.ReferenceNames[0] = "11111111111111111111111111111111-dummy"
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("nil root node", func(t *testing.T) {
pi := genPathInfoSymlink()
pi.Node = nil
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("invalid root node name", func(t *testing.T) {
pi := genPathInfoSymlink()
// make the reference name an invalid store path - it may not be absolute
symlinkNode := pi.Node.GetSymlink()
symlinkNode.Name = []byte(path.Join(storepath.StoreDir, "00000000000000000000000000000000-dummy"))
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
t.Run("happy deriver", func(t *testing.T) {
pi := genPathInfoSymlink()
// add the Deriver Field.
pi.Deriver = &storev1pb.StorePath{
Digest: exampleStorePathDigest,
Name: "foo",
}
_, err := pi.Validate()
assert.NoError(t, err, "must validate")
})
t.Run("invalid deriver", func(t *testing.T) {
pi := genPathInfoSymlink()
// add the Deriver Field, with a broken digest
pi.Deriver = &storev1pb.StorePath{
Digest: []byte{},
Name: "foo2",
}
_, err := pi.Validate()
assert.Error(t, err, "must not validate")
})
}

51
tvix/store-go/pick_next_node_test.go Normal file
View file

@ -0,0 +1,51 @@
package storev1
import (
"testing"
castorev1pb "code.tvl.fyi/tvix/castore/protos"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/testing/protocmp"
)
func requireProtoEq(t *testing.T, expected interface{}, actual interface{}) {
if diff := cmp.Diff(expected, actual, protocmp.Transform()); diff != "" {
t.Errorf("unexpected difference:\n%v", diff)
}
}
func TestPopNextNode(t *testing.T) {
t.Run("empty directory", func(t *testing.T) {
d := &castorev1pb.Directory{
Directories: []*castorev1pb.DirectoryNode{},
Files: []*castorev1pb.FileNode{},
Symlinks: []*castorev1pb.SymlinkNode{},
}
n := drainNextNode(d)
require.Equal(t, nil, n)
})
t.Run("only directories", func(t *testing.T) {
ds := &castorev1pb.Directory{
Directories: []*castorev1pb.DirectoryNode{{
Name: []byte("a"),
Digest: []byte{},
Size: 0,
}, {
Name: []byte("b"),
Digest: []byte{},
Size: 0,
}},
Files: []*castorev1pb.FileNode{},
Symlinks: []*castorev1pb.SymlinkNode{},
}
n := drainNextNode(ds)
requireProtoEq(t, &castorev1pb.DirectoryNode{
Name: []byte("a"),
Digest: []byte{},
Size: 0,
}, n)
})
}

348
tvix/store-go/rpc_pathinfo.pb.go Normal file
View file

@ -0,0 +1,348 @@
// SPDX-License-Identifier: MIT
// Copyright © 2022 The Tvix Authors
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.31.0
// protoc (unknown)
// source: tvix/store/protos/rpc_pathinfo.proto
package storev1
import (
protos "code.tvl.fyi/tvix/castore/protos"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The parameters that can be used to lookup a (single) PathInfo object.
// Currently, only a lookup by output hash is supported.
type GetPathInfoRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Types that are assignable to ByWhat:
//
// *GetPathInfoRequest_ByOutputHash
ByWhat isGetPathInfoRequest_ByWhat `protobuf_oneof:"by_what"`
}
func (x *GetPathInfoRequest) Reset() {
*x = GetPathInfoRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *GetPathInfoRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*GetPathInfoRequest) ProtoMessage() {}
func (x *GetPathInfoRequest) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use GetPathInfoRequest.ProtoReflect.Descriptor instead.
func (*GetPathInfoRequest) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{0}
}
func (m *GetPathInfoRequest) GetByWhat() isGetPathInfoRequest_ByWhat {
if m != nil {
return m.ByWhat
}
return nil
}
func (x *GetPathInfoRequest) GetByOutputHash() []byte {
if x, ok := x.GetByWhat().(*GetPathInfoRequest_ByOutputHash); ok {
return x.ByOutputHash
}
return nil
}
type isGetPathInfoRequest_ByWhat interface {
isGetPathInfoRequest_ByWhat()
}
type GetPathInfoRequest_ByOutputHash struct {
// The output hash of a nix path (20 bytes).
// This is the nixbase32-decoded portion of a Nix output path, so to substitute
// /nix/store/xm35nga2g20mz5sm5l6n8v3bdm86yj83-cowsay-3.04
// this field would contain nixbase32dec("xm35nga2g20mz5sm5l6n8v3bdm86yj83").
ByOutputHash []byte `protobuf:"bytes,1,opt,name=by_output_hash,json=byOutputHash,proto3,oneof"`
}
func (*GetPathInfoRequest_ByOutputHash) isGetPathInfoRequest_ByWhat() {}
// The parameters that can be used to lookup (multiple) PathInfo objects.
// Currently no filtering is possible, all objects are returned.
type ListPathInfoRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
}
func (x *ListPathInfoRequest) Reset() {
*x = ListPathInfoRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ListPathInfoRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ListPathInfoRequest) ProtoMessage() {}
func (x *ListPathInfoRequest) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ListPathInfoRequest.ProtoReflect.Descriptor instead.
func (*ListPathInfoRequest) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{1}
}
// CalculateNARResponse is the response returned by the CalculateNAR request.
//
// It contains the size of the NAR representation (in bytes), and the sha56
// digest.
type CalculateNARResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// This size of the NAR file, in bytes.
NarSize uint64 `protobuf:"varint,1,opt,name=nar_size,json=narSize,proto3" json:"nar_size,omitempty"`
// The sha256 of the NAR file representation.
NarSha256 []byte `protobuf:"bytes,2,opt,name=nar_sha256,json=narSha256,proto3" json:"nar_sha256,omitempty"`
}
func (x *CalculateNARResponse) Reset() {
*x = CalculateNARResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *CalculateNARResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*CalculateNARResponse) ProtoMessage() {}
func (x *CalculateNARResponse) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use CalculateNARResponse.ProtoReflect.Descriptor instead.
func (*CalculateNARResponse) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{2}
}
func (x *CalculateNARResponse) GetNarSize() uint64 {
if x != nil {
return x.NarSize
}
return 0
}
func (x *CalculateNARResponse) GetNarSha256() []byte {
if x != nil {
return x.NarSha256
}
return nil
}
var File_tvix_store_protos_rpc_pathinfo_proto protoreflect.FileDescriptor
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}
var (
file_tvix_store_protos_rpc_pathinfo_proto_rawDescOnce sync.Once
file_tvix_store_protos_rpc_pathinfo_proto_rawDescData = file_tvix_store_protos_rpc_pathinfo_proto_rawDesc
)
func file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP() []byte {
file_tvix_store_protos_rpc_pathinfo_proto_rawDescOnce.Do(func() {
file_tvix_store_protos_rpc_pathinfo_proto_rawDescData = protoimpl.X.CompressGZIP(file_tvix_store_protos_rpc_pathinfo_proto_rawDescData)
})
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescData
}
var file_tvix_store_protos_rpc_pathinfo_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_tvix_store_protos_rpc_pathinfo_proto_goTypes = []interface{}{
(*GetPathInfoRequest)(nil), // 0: tvix.store.v1.GetPathInfoRequest
(*ListPathInfoRequest)(nil), // 1: tvix.store.v1.ListPathInfoRequest
(*CalculateNARResponse)(nil), // 2: tvix.store.v1.CalculateNARResponse
(*PathInfo)(nil), // 3: tvix.store.v1.PathInfo
(*protos.Node)(nil), // 4: tvix.castore.v1.Node
}
var file_tvix_store_protos_rpc_pathinfo_proto_depIdxs = []int32{
0, // 0: tvix.store.v1.PathInfoService.Get:input_type -> tvix.store.v1.GetPathInfoRequest
3, // 1: tvix.store.v1.PathInfoService.Put:input_type -> tvix.store.v1.PathInfo
4, // 2: tvix.store.v1.PathInfoService.CalculateNAR:input_type -> tvix.castore.v1.Node
1, // 3: tvix.store.v1.PathInfoService.List:input_type -> tvix.store.v1.ListPathInfoRequest
3, // 4: tvix.store.v1.PathInfoService.Get:output_type -> tvix.store.v1.PathInfo
3, // 5: tvix.store.v1.PathInfoService.Put:output_type -> tvix.store.v1.PathInfo
2, // 6: tvix.store.v1.PathInfoService.CalculateNAR:output_type -> tvix.store.v1.CalculateNARResponse
3, // 7: tvix.store.v1.PathInfoService.List:output_type -> tvix.store.v1.PathInfo
4, // [4:8] is the sub-list for method output_type
0, // [0:4] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_tvix_store_protos_rpc_pathinfo_proto_init() }
func file_tvix_store_protos_rpc_pathinfo_proto_init() {
if File_tvix_store_protos_rpc_pathinfo_proto != nil {
return
}
file_tvix_store_protos_pathinfo_proto_init()
if !protoimpl.UnsafeEnabled {
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*GetPathInfoRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ListPathInfoRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*CalculateNARResponse); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[0].OneofWrappers = []interface{}{
(*GetPathInfoRequest_ByOutputHash)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_tvix_store_protos_rpc_pathinfo_proto_rawDesc,
NumEnums: 0,
NumMessages: 3,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_tvix_store_protos_rpc_pathinfo_proto_goTypes,
DependencyIndexes: file_tvix_store_protos_rpc_pathinfo_proto_depIdxs,
MessageInfos: file_tvix_store_protos_rpc_pathinfo_proto_msgTypes,
}.Build()
File_tvix_store_protos_rpc_pathinfo_proto = out.File
file_tvix_store_protos_rpc_pathinfo_proto_rawDesc = nil
file_tvix_store_protos_rpc_pathinfo_proto_goTypes = nil
file_tvix_store_protos_rpc_pathinfo_proto_depIdxs = nil
}

308
tvix/store-go/rpc_pathinfo_grpc.pb.go Normal file
View file

@ -0,0 +1,308 @@
// SPDX-License-Identifier: MIT
// Copyright © 2022 The Tvix Authors
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.3.0
// - protoc (unknown)
// source: tvix/store/protos/rpc_pathinfo.proto
package storev1
import (
protos "code.tvl.fyi/tvix/castore/protos"
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.32.0 or later.
const _ = grpc.SupportPackageIsVersion7
const (
PathInfoService_Get_FullMethodName = "/tvix.store.v1.PathInfoService/Get"
PathInfoService_Put_FullMethodName = "/tvix.store.v1.PathInfoService/Put"
PathInfoService_CalculateNAR_FullMethodName = "/tvix.store.v1.PathInfoService/CalculateNAR"
PathInfoService_List_FullMethodName = "/tvix.store.v1.PathInfoService/List"
)
// PathInfoServiceClient is the client API for PathInfoService service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type PathInfoServiceClient interface {
// Return a PathInfo message matching the criteria specified in the
// GetPathInfoRequest message.
Get(ctx context.Context, in *GetPathInfoRequest, opts ...grpc.CallOption) (*PathInfo, error)
// Upload a PathInfo object to the remote end. It MUST not return until the
// PathInfo object has been written on the the remote end.
//
// The remote end MAY check if a potential DirectoryNode has already been
// uploaded.
//
// Uploading clients SHOULD obviously not steer other machines to try to
// substitute before from the remote end before having finished uploading
// PathInfo, Directories and Blobs.
// The returned PathInfo object MAY contain additional narinfo signatures,
// but is otherwise left untouched.
Put(ctx context.Context, in *PathInfo, opts ...grpc.CallOption) (*PathInfo, error)
// Calculate the NAR representation of the contents specified by the
// root_node. The calculation SHOULD be cached server-side for subsequent
// requests.
//
// All references (to blobs or Directory messages) MUST already exist in
// the store.
//
// The method can be used to produce a Nix fixed-output path, which
// contains the (compressed) sha256 of the NAR content representation in
// the root_node name (suffixed with the name).
//
// It can also be used to calculate arbitrary NAR hashes of output paths,
// in case a legacy Nix Binary Cache frontend is provided.
CalculateNAR(ctx context.Context, in *protos.Node, opts ...grpc.CallOption) (*CalculateNARResponse, error)
// Return a stream of PathInfo messages matching the criteria specified in
// ListPathInfoRequest.
List(ctx context.Context, in *ListPathInfoRequest, opts ...grpc.CallOption) (PathInfoService_ListClient, error)
}
type pathInfoServiceClient struct {
cc grpc.ClientConnInterface
}
func NewPathInfoServiceClient(cc grpc.ClientConnInterface) PathInfoServiceClient {
return &pathInfoServiceClient{cc}
}
func (c *pathInfoServiceClient) Get(ctx context.Context, in *GetPathInfoRequest, opts ...grpc.CallOption) (*PathInfo, error) {
out := new(PathInfo)
err := c.cc.Invoke(ctx, PathInfoService_Get_FullMethodName, in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *pathInfoServiceClient) Put(ctx context.Context, in *PathInfo, opts ...grpc.CallOption) (*PathInfo, error) {
out := new(PathInfo)
err := c.cc.Invoke(ctx, PathInfoService_Put_FullMethodName, in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *pathInfoServiceClient) CalculateNAR(ctx context.Context, in *protos.Node, opts ...grpc.CallOption) (*CalculateNARResponse, error) {
out := new(CalculateNARResponse)
err := c.cc.Invoke(ctx, PathInfoService_CalculateNAR_FullMethodName, in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *pathInfoServiceClient) List(ctx context.Context, in *ListPathInfoRequest, opts ...grpc.CallOption) (PathInfoService_ListClient, error) {
stream, err := c.cc.NewStream(ctx, &PathInfoService_ServiceDesc.Streams[0], PathInfoService_List_FullMethodName, opts...)
if err != nil {
return nil, err
}
x := &pathInfoServiceListClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type PathInfoService_ListClient interface {
Recv() (*PathInfo, error)
grpc.ClientStream
}
type pathInfoServiceListClient struct {
grpc.ClientStream
}
func (x *pathInfoServiceListClient) Recv() (*PathInfo, error) {
m := new(PathInfo)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// PathInfoServiceServer is the server API for PathInfoService service.
// All implementations must embed UnimplementedPathInfoServiceServer
// for forward compatibility
type PathInfoServiceServer interface {
// Return a PathInfo message matching the criteria specified in the
// GetPathInfoRequest message.
Get(context.Context, *GetPathInfoRequest) (*PathInfo, error)
// Upload a PathInfo object to the remote end. It MUST not return until the
// PathInfo object has been written on the the remote end.
//
// The remote end MAY check if a potential DirectoryNode has already been
// uploaded.
//
// Uploading clients SHOULD obviously not steer other machines to try to
// substitute before from the remote end before having finished uploading
// PathInfo, Directories and Blobs.
// The returned PathInfo object MAY contain additional narinfo signatures,
// but is otherwise left untouched.
Put(context.Context, *PathInfo) (*PathInfo, error)
// Calculate the NAR representation of the contents specified by the
// root_node. The calculation SHOULD be cached server-side for subsequent
// requests.
//
// All references (to blobs or Directory messages) MUST already exist in
// the store.
//
// The method can be used to produce a Nix fixed-output path, which
// contains the (compressed) sha256 of the NAR content representation in
// the root_node name (suffixed with the name).
//
// It can also be used to calculate arbitrary NAR hashes of output paths,
// in case a legacy Nix Binary Cache frontend is provided.
CalculateNAR(context.Context, *protos.Node) (*CalculateNARResponse, error)
// Return a stream of PathInfo messages matching the criteria specified in
// ListPathInfoRequest.
List(*ListPathInfoRequest, PathInfoService_ListServer) error
mustEmbedUnimplementedPathInfoServiceServer()
}
// UnimplementedPathInfoServiceServer must be embedded to have forward compatible implementations.
type UnimplementedPathInfoServiceServer struct {
}
func (UnimplementedPathInfoServiceServer) Get(context.Context, *GetPathInfoRequest) (*PathInfo, error) {
return nil, status.Errorf(codes.Unimplemented, "method Get not implemented")
}
func (UnimplementedPathInfoServiceServer) Put(context.Context, *PathInfo) (*PathInfo, error) {
return nil, status.Errorf(codes.Unimplemented, "method Put not implemented")
}
func (UnimplementedPathInfoServiceServer) CalculateNAR(context.Context, *protos.Node) (*CalculateNARResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method CalculateNAR not implemented")
}
func (UnimplementedPathInfoServiceServer) List(*ListPathInfoRequest, PathInfoService_ListServer) error {
return status.Errorf(codes.Unimplemented, "method List not implemented")
}
func (UnimplementedPathInfoServiceServer) mustEmbedUnimplementedPathInfoServiceServer() {}
// UnsafePathInfoServiceServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to PathInfoServiceServer will
// result in compilation errors.
type UnsafePathInfoServiceServer interface {
mustEmbedUnimplementedPathInfoServiceServer()
}
func RegisterPathInfoServiceServer(s grpc.ServiceRegistrar, srv PathInfoServiceServer) {
s.RegisterService(&PathInfoService_ServiceDesc, srv)
}
func _PathInfoService_Get_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(GetPathInfoRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(PathInfoServiceServer).Get(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: PathInfoService_Get_FullMethodName,
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(PathInfoServiceServer).Get(ctx, req.(*GetPathInfoRequest))
}
return interceptor(ctx, in, info, handler)
}
func _PathInfoService_Put_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(PathInfo)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(PathInfoServiceServer).Put(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: PathInfoService_Put_FullMethodName,
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(PathInfoServiceServer).Put(ctx, req.(*PathInfo))
}
return interceptor(ctx, in, info, handler)
}
func _PathInfoService_CalculateNAR_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(protos.Node)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(PathInfoServiceServer).CalculateNAR(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: PathInfoService_CalculateNAR_FullMethodName,
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(PathInfoServiceServer).CalculateNAR(ctx, req.(*protos.Node))
}
return interceptor(ctx, in, info, handler)
}
func _PathInfoService_List_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(ListPathInfoRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(PathInfoServiceServer).List(m, &pathInfoServiceListServer{stream})
}
type PathInfoService_ListServer interface {
Send(*PathInfo) error
grpc.ServerStream
}
type pathInfoServiceListServer struct {
grpc.ServerStream
}
func (x *pathInfoServiceListServer) Send(m *PathInfo) error {
return x.ServerStream.SendMsg(m)
}
// PathInfoService_ServiceDesc is the grpc.ServiceDesc for PathInfoService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var PathInfoService_ServiceDesc = grpc.ServiceDesc{
ServiceName: "tvix.store.v1.PathInfoService",
HandlerType: (*PathInfoServiceServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Get",
Handler: _PathInfoService_Get_Handler,
},
{
MethodName: "Put",
Handler: _PathInfoService_Put_Handler,
},
{
MethodName: "CalculateNAR",
Handler: _PathInfoService_CalculateNAR_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "List",
Handler: _PathInfoService_List_Handler,
ServerStreams: true,
},
},
Metadata: "tvix/store/protos/rpc_pathinfo.proto",
}

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