tvl-depot/tvix/nar-bridge/cmd/nar_bridge/import.go
Florian Klink 0ecd10bf30 feat(tvix/nar-bridge): init
This provides a Nix HTTP Binary Cache interface in front of a tvix-store
that's reachable via gRPC.

TODOs:

 - remove import command, move serve up to toplevel. We have nix-copy-
   closure and tvix-store commands.
 - loop into CI. We should be able to fetch the protos as a third-party
   dependency.
 - Check if we can test nar-bridge slightly easier in an integration
   test.
 - Ensure we support connecting to unix sockets and grpc+http at least,
   using the same syntax as tvix-store.
 - Don't buffer the entire blob when rendering NAR

Co-Authored-By: Connor Brewster <cbrewster@hey.com>
Co-Authored-By: Márton Boros <martonboros@gmail.com>
Co-Authored-By: Vo Minh Thu <noteed@gmail.com>

Change-Id: I6064474e49dfe78cea67676957462d9f28658d4a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9339
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2023-09-17 13:24:53 +00:00

57 lines
1 KiB
Go

package main
import (
"context"
"fmt"
"io"
"os"
"os/signal"
storev1pb "code.tvl.fyi/tvix/store/protos"
"code.tvl.fyi/tvix/nar-bridge/pkg/reader"
log "github.com/sirupsen/logrus"
)
type ImportCmd struct {
NarPath string `name:"nar-path" help:"A path to a NAR file"`
}
// `help:"Read a NAR file and display some information"`
func (cmd *ImportCmd) Run() error {
retcode := 0
defer func() { os.Exit(retcode) }()
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func() {
for range c {
log.Info("Received Signal, shutting down…")
os.Exit(1)
}
}()
log.Infof("Reading %v...", cmd.NarPath)
f, _ := os.Open(cmd.NarPath)
r := reader.New(f)
actualPathInfo, _ := r.Import(
context.Background(),
func(fileReader io.Reader) error {
return nil
},
func(directory *storev1pb.Directory) error {
return nil
},
)
fmt.Printf("Node: %+v\n", actualPathInfo.Node)
fmt.Printf("References: %+v\n", actualPathInfo.References)
fmt.Printf("Narinfo: %+v\n", actualPathInfo.Narinfo)
return nil
}