| 1 | // Command tinygit serves signed repository metadata and native Git smart HTTP. |
| 2 | package main |
| 3 | |
| 4 | import ( |
| 5 | "context" |
| 6 | "errors" |
| 7 | "flag" |
| 8 | "fmt" |
| 9 | "io" |
| 10 | "net" |
| 11 | "net/http" |
| 12 | "os" |
| 13 | "os/exec" |
| 14 | "os/signal" |
| 15 | "syscall" |
| 16 | "time" |
| 17 | |
| 18 | "github.com/FelineStateMachine/tinyrelay/tinygit" |
| 19 | ) |
| 20 | |
| 21 | func main() { |
| 22 | ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM) |
| 23 | defer stop() |
| 24 | if err := run(ctx, os.Args[1:], os.Stdout, os.Stderr); err != nil { |
| 25 | fmt.Fprintln(os.Stderr, "tinygit:" , err) |
| 26 | os.Exit(1) |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | func run(ctx context.Context, args []string, stdout, stderr io.Writer) error { |
| 31 | flags := flag.NewFlagSet("tinygit" , flag.ContinueOnError) |
| 32 | flags.SetOutput(stderr) |
| 33 | listen := flags.String("listen" , "127.0.0.1:8082" , "HTTP listen address (put TLS and request limits in front for public hosting)" ) |
| 34 | data := flags.String("data" , "./tinygit-data" , "dedicated data directory for events.db and bare Git repositories" ) |
| 35 | owner := flags.String("owner" , "" , "required repository owner's lowercase hex Nostr public key" ) |
| 36 | publicURL := flags.String("public-url" , "" , "canonical public HTTP(S) URL" ) |
| 37 | if err := flags.Parse(args); err != nil { |
| 38 | if errors.Is(err, flag.ErrHelp) { |
| 39 | return nil |
| 40 | } |
| 41 | return err |
| 42 | } |
| 43 | if flags.NArg() != 0 { |
| 44 | return errors.New("unexpected positional arguments" ) |
| 45 | } |
| 46 | if _, err := exec.LookPath("git" ); err != nil { |
| 47 | return fmt.Errorf("native Git is required: %w" , err) |
| 48 | } |
| 49 | handler, err := tinygit.OpenServer(ctx, tinygit.ServerConfig{DataDir: *data, Owner: *owner, PublicURL: *publicURL}) |
| 50 | if err != nil { |
| 51 | return err |
| 52 | } |
| 53 | defer handler.Close() |
| 54 | listener, err := net.Listen("tcp" , *listen) |
| 55 | if err != nil { |
| 56 | return err |
| 57 | } |
| 58 | defer listener.Close() |
| 59 | server := &http.Server{ |
| 60 | Handler: handler, |
| 61 | ReadHeaderTimeout: 10 * time.Second, |
| 62 | IdleTimeout: 60 * time.Second, |
| 63 | MaxHeaderBytes: 1 << 20, |
| 64 | BaseContext: func(net.Listener) context.Context { return ctx }, |
| 65 | } |
| 66 | done := make(chan error, 1) |
| 67 | go func() { done <- server.Serve(listener) }() |
| 68 | fmt.Fprintln(stdout, "tinygit listening on http://" +listener.Addr().String()) |
| 69 | select { |
| 70 | case err := <-done: |
| 71 | if errors.Is(err, http.ErrServerClosed) { |
| 72 | return nil |
| 73 | } |
| 74 | return err |
| 75 | case <-ctx.Done(): |
| 76 | shutdown, cancel := context.WithTimeout(context.Background(), 10*time.Second) |
| 77 | defer cancel() |
| 78 | err := server.Shutdown(shutdown) |
| 79 | if err != nil { |
| 80 | _ = server.Close() |
| 81 | } |
| 82 | serveErr := <-done |
| 83 | if errors.Is(serveErr, http.ErrServerClosed) { |
| 84 | serveErr = nil |
| 85 | } |
| 86 | return errors.Join(err, serveErr) |
| 87 | } |
| 88 | } |