Use cgofuse (#92)

fs_windows.go

@@ -0,0 +1,141 @@
+//go:build windows
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"fiatjaf.com/nostr"
+	"fiatjaf.com/nostr/keyer"
+	"github.com/fatih/color"
+	"github.com/fiatjaf/nak/nostrfs"
+	"github.com/urfave/cli/v3"
+	"github.com/winfsp/cgofuse/fuse"
+)
+
+var fsCmd = &cli.Command{
+	Name:        "fs",
+	Usage:       "mount a FUSE filesystem that exposes Nostr events as files.",
+	Description: `(experimental)`,
+	ArgsUsage:   "<mountpoint>",
+	Flags: append(defaultKeyFlags,
+		&PubKeyFlag{
+			Name:  "pubkey",
+			Usage: "public key from where to to prepopulate directories",
+		},
+		&cli.DurationFlag{
+			Name:  "auto-publish-notes",
+			Usage: "delay after which new notes will be auto-published, set to -1 to not publish.",
+			Value: time.Second * 30,
+		},
+		&cli.DurationFlag{
+			Name:        "auto-publish-articles",
+			Usage:       "delay after which edited articles will be auto-published.",
+			Value:       time.Hour * 24 * 365 * 2,
+			DefaultText: "basically infinite",
+		},
+	),
+	DisableSliceFlagSeparator: true,
+	Action: func(ctx context.Context, c *cli.Command) error {
+		mountpoint := c.Args().First()
+		if mountpoint == "" {
+			return fmt.Errorf("must be called with a directory path to serve as the mountpoint as an argument")
+		}
+
+		var kr nostr.User
+		if signer, _, err := gatherKeyerFromArguments(ctx, c); err == nil {
+			kr = signer
+		} else {
+			kr = keyer.NewReadOnlyUser(getPubKey(c, "pubkey"))
+		}
+
+		apnt := c.Duration("auto-publish-notes")
+		if apnt < 0 {
+			apnt = time.Hour * 24 * 365 * 3
+		}
+		apat := c.Duration("auto-publish-articles")
+		if apat < 0 {
+			apat = time.Hour * 24 * 365 * 3
+		}
+
+		root := nostrfs.NewNostrRoot(
+			context.WithValue(
+				context.WithValue(
+					ctx,
+					"log", log,
+				),
+				"logverbose", logverbose,
+			),
+			sys,
+			kr,
+			mountpoint,
+			nostrfs.Options{
+				AutoPublishNotesTimeout:    apnt,
+				AutoPublishArticlesTimeout: apat,
+			},
+		)
+
+		// create the server
+		log("- mounting at %s... ", color.HiCyanString(mountpoint))
+
+		// Create cgofuse host
+		host := fuse.NewFileSystemHost(root)
+		host.SetCapReaddirPlus(true)
+		host.SetUseIno(true)
+
+		// Mount the filesystem - Windows/WinFsp version
+		// Based on rclone cmount implementation
+		mountArgs := []string{
+			"-o", "uid=-1",
+			"-o", "gid=-1",
+			"--FileSystemName=nak",
+		}
+
+		// Check if mountpoint is a drive letter or directory
+		isDriveLetter := len(mountpoint) == 2 && mountpoint[1] == ':'
+
+		if !isDriveLetter {
+			// WinFsp primarily supports drive letters on Windows
+			// Directory mounting may not work reliably
+			log("WARNING: directory mounting may not work on Windows (WinFsp limitation)\n")
+			log("         consider using a drive letter instead (e.g., 'nak fs Z:')\n")
+
+			// For directory mounts, follow rclone's approach:
+			// 1. Check that mountpoint doesn't already exist
+			if _, err := os.Stat(mountpoint); err == nil {
+				return fmt.Errorf("mountpoint path already exists: %s (must not exist before mounting)", mountpoint)
+			} else if !os.IsNotExist(err) {
+				return fmt.Errorf("failed to check mountpoint: %w", err)
+			}
+
+			// 2. Check that parent directory exists
+			parent := filepath.Join(mountpoint, "..")
+			if _, err := os.Stat(parent); err != nil {
+				if os.IsNotExist(err) {
+					return fmt.Errorf("parent of mountpoint directory does not exist: %s", parent)
+				}
+				return fmt.Errorf("failed to check parent directory: %w", err)
+			}
+
+			// 3. Use network mode for directory mounts
+			mountArgs = append(mountArgs, "--VolumePrefix=\\nak\\"+filepath.Base(mountpoint))
+		}
+
+		if isVerbose {
+			mountArgs = append(mountArgs, "-o", "debug")
+		}
+		mountArgs = append(mountArgs, mountpoint)
+
+		log("ok.\n")
+
+		// Mount in main thread like hellofs
+		if !host.Mount("", mountArgs) {
+			return fmt.Errorf("failed to mount filesystem")
+		}
+		return nil
+	},
+}