refactor: Use explicit reader/writer instead of filepath for drive

cmd/stbak/cmd/archive.go

@@ -12,6 +12,7 @@ import (
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/operations"
 	"github.com/pojntfx/stfs/pkg/recovery"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -30,7 +31,7 @@ var archiveCmd = &cobra.Command{
 	Use:     "archive",
 	Aliases: []string{"arc", "a", "c"},
 	Short:   "Archive a file or directory to tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -83,10 +84,27 @@ var archiveCmd = &cobra.Command{
 			return err
 		}
 
+		writer, writerIsRegular, err := tape.OpenTapeWriteOnly(
+			viper.GetString(driveFlag),
+			viper.GetInt(recordSizeFlag),
+			viper.GetBool(overwriteFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer writer.Close()
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		hdrs, err := operations.Archive(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
-				Metadata: viper.GetString(metadataFlag),
+			config.DriveWriterConfig{
+				Drive:          writer,
+				DriveIsRegular: writerIsRegular,
 			},
 			config.PipeConfig{
 				Compression: viper.GetString(compressionFlag),
@@ -101,7 +119,6 @@ var archiveCmd = &cobra.Command{
 
 			viper.GetInt(recordSizeFlag),
 			viper.GetString(fromFlag),
-			viper.GetBool(overwriteFlag),
 			viper.GetString(compressionLevelFlag),
 
 			logging.NewLogger().PrintHeader,
@@ -110,9 +127,21 @@ var archiveCmd = &cobra.Command{
 			return err
 		}
 
+		index := 1 // Ignore the first header, which is the last header which we already indexed
+		if viper.GetBool(overwriteFlag) {
+			index = 0 // If we are starting fresh, index from start
+		}
+
 		return recovery.Index(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{
@@ -130,7 +159,7 @@ var archiveCmd = &cobra.Command{
 			int(lastIndexedRecord),
 			int(lastIndexedBlock),
 			viper.GetBool(overwriteFlag),
-			1, // Ignore the first header, which is the last header which we already indexed
+			index,
 
 			func(hdr *tar.Header, i int) error {
 				if len(hdrs) <= i {

cmd/stbak/cmd/delete.go

@@ -5,6 +5,7 @@ import (
 	"github.com/pojntfx/stfs/internal/logging"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/operations"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -17,7 +18,7 @@ var deleteCmd = &cobra.Command{
 	Use:     "delete",
 	Aliases: []string{"del", "d", "rm"},
 	Short:   "Delete a file or directory from tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -49,9 +50,37 @@ var deleteCmd = &cobra.Command{
 			return err
 		}
 
+		writer, writerIsRegular, err := tape.OpenTapeWriteOnly(
+			viper.GetString(driveFlag),
+			viper.GetInt(recordSizeFlag),
+			false,
+		)
+		if err != nil {
+			return nil
+		}
+		defer writer.Close()
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return operations.Delete(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveWriterConfig{
+				Drive:          writer,
+				DriveIsRegular: writerIsRegular,
+			},
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{

cmd/stbak/cmd/drive_eject.go

@@ -1,7 +1,9 @@
 package cmd
 
 import (
+	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/hardware"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -14,9 +16,18 @@ var driveEjectCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return hardware.Eject(
-			hardware.DriveConfig{
-				Drive: viper.GetString(driveFlag),
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
 			},
 		)
 	},

cmd/stbak/cmd/drive_tell.go

@@ -3,7 +3,9 @@ package cmd
 import (
 	"fmt"
 
+	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/hardware"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -16,9 +18,18 @@ var driveTellCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		currentRecord, err := hardware.Tell(
-			hardware.DriveConfig{
-				Drive: viper.GetString(driveFlag),
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
 			},
 		)
 		if err != nil {

cmd/stbak/cmd/find.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"github.com/pojntfx/stfs/internal/logging"
+	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/inventory"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -21,7 +22,7 @@ var findCmd = &cobra.Command{
 		}
 
 		if _, err := inventory.Find(
-			inventory.MetadataConfig{
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 

cmd/stbak/cmd/keygen.go

@@ -26,7 +26,7 @@ var keygenCmd = &cobra.Command{
 				Encryption:  viper.GetString(encryptionFlag),
 				Signature:   viper.GetString(signatureFlag),
 			},
-			utility.PasswordConfig{
+			config.PasswordConfig{
 				Password: viper.GetString(passwordFlag),
 			},
 		)

cmd/stbak/cmd/list.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"github.com/pojntfx/stfs/internal/logging"
+	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/inventory"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -17,7 +18,7 @@ var listCmd = &cobra.Command{
 		}
 
 		if _, err := inventory.List(
-			inventory.MetadataConfig{
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 

cmd/stbak/cmd/move.go

@@ -5,6 +5,7 @@ import (
 	"github.com/pojntfx/stfs/internal/logging"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/operations"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -13,7 +14,7 @@ var moveCmd = &cobra.Command{
 	Use:     "move",
 	Aliases: []string{"mov", "m", "mv"},
 	Short:   "Move a file or directory on tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -45,9 +46,37 @@ var moveCmd = &cobra.Command{
 			return err
 		}
 
+		writer, writerIsRegular, err := tape.OpenTapeWriteOnly(
+			viper.GetString(driveFlag),
+			viper.GetInt(recordSizeFlag),
+			false,
+		)
+		if err != nil {
+			return nil
+		}
+		defer writer.Close()
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return operations.Move(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveWriterConfig{
+				Drive:          writer,
+				DriveIsRegular: writerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{

cmd/stbak/cmd/recovery_fetch.go

@@ -4,8 +4,8 @@ import (
 	"github.com/pojntfx/stfs/internal/keys"
 	"github.com/pojntfx/stfs/internal/logging"
 	"github.com/pojntfx/stfs/pkg/config"
-	"github.com/pojntfx/stfs/pkg/hardware"
 	"github.com/pojntfx/stfs/pkg/recovery"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -20,7 +20,7 @@ const (
 var recoveryFetchCmd = &cobra.Command{
 	Use:   "fetch",
 	Short: "Fetch a file or directory from tape or tar file by record and block without the index",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -52,9 +52,22 @@ var recoveryFetchCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return recovery.Fetch(
-			hardware.DriveConfig{
-				Drive: viper.GetString(driveFlag),
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
 			},
 			config.PipeConfig{
 				Compression: viper.GetString(compressionFlag),

cmd/stbak/cmd/recovery_index.go

@@ -9,6 +9,7 @@ import (
 	"github.com/pojntfx/stfs/internal/signature"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/recovery"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -16,7 +17,7 @@ import (
 var recoveryIndexCmd = &cobra.Command{
 	Use:   "index",
 	Short: "Index contents of tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -48,9 +49,24 @@ var recoveryIndexCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return recovery.Index(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{

cmd/stbak/cmd/recovery_query.go

@@ -4,8 +4,8 @@ import (
 	"github.com/pojntfx/stfs/internal/keys"
 	"github.com/pojntfx/stfs/internal/logging"
 	"github.com/pojntfx/stfs/pkg/config"
-	"github.com/pojntfx/stfs/pkg/hardware"
 	"github.com/pojntfx/stfs/pkg/recovery"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -13,7 +13,7 @@ import (
 var recoveryQueryCmd = &cobra.Command{
 	Use:   "query",
 	Short: "Query contents of tape or tar file without the index",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -45,9 +45,18 @@ var recoveryQueryCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		if _, err := recovery.Query(
-			hardware.DriveConfig{
-				Drive: viper.GetString(driveFlag),
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
 			},
 			config.PipeConfig{
 				Compression: viper.GetString(compressionFlag),

cmd/stbak/cmd/restore.go

@@ -5,6 +5,7 @@ import (
 	"github.com/pojntfx/stfs/internal/logging"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/operations"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -17,7 +18,7 @@ var restoreCmd = &cobra.Command{
 	Use:     "restore",
 	Aliases: []string{"res", "r", "x"},
 	Short:   "Restore a file or directory from tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -49,9 +50,24 @@ var restoreCmd = &cobra.Command{
 			return err
 		}
 
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		return operations.Restore(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{

cmd/stbak/cmd/update.go

@@ -12,6 +12,7 @@ import (
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/operations"
 	"github.com/pojntfx/stfs/pkg/recovery"
+	"github.com/pojntfx/stfs/pkg/tape"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -20,7 +21,7 @@ var updateCmd = &cobra.Command{
 	Use:     "update",
 	Aliases: []string{"upd", "u"},
 	Short:   "Update a file or directory's content and metadata on tape or tar file",
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+	PreRunE: func(cmd *cobra.Command, args []string) error {
 		if err := viper.BindPFlags(cmd.PersistentFlags()); err != nil {
 			return err
 		}
@@ -66,10 +67,27 @@ var updateCmd = &cobra.Command{
 			return err
 		}
 
+		writer, writerIsRegular, err := tape.OpenTapeWriteOnly(
+			viper.GetString(driveFlag),
+			viper.GetInt(recordSizeFlag),
+			false,
+		)
+		if err != nil {
+			return nil
+		}
+		defer writer.Close()
+		reader, readerIsRegular, err := tape.OpenTapeReadOnly(
+			viper.GetString(driveFlag),
+		)
+		if err != nil {
+			return nil
+		}
+		defer reader.Close()
+
 		hdrs, err := operations.Update(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
-				Metadata: viper.GetString(metadataFlag),
+			config.DriveWriterConfig{
+				Drive:          writer,
+				DriveIsRegular: writerIsRegular,
 			},
 			config.PipeConfig{
 				Compression: viper.GetString(compressionFlag),
@@ -94,8 +112,15 @@ var updateCmd = &cobra.Command{
 		}
 
 		return recovery.Index(
-			config.StateConfig{
-				Drive:    viper.GetString(driveFlag),
+			config.DriveReaderConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.DriveConfig{
+				Drive:          reader,
+				DriveIsRegular: readerIsRegular,
+			},
+			config.MetadataConfig{
 				Metadata: viper.GetString(metadataFlag),
 			},
 			config.PipeConfig{

internal/tape/write.go

@@ -1,79 +0,0 @@
-package tape
-
-import (
-	"archive/tar"
-	"bufio"
-	"os"
-
-	"github.com/pojntfx/stfs/internal/ioext"
-	"github.com/pojntfx/stfs/internal/mtio"
-)
-
-func OpenTapeWriteOnly(drive string, recordSize int, overwrite bool) (tw *tar.Writer, isRegular bool, cleanup func(dirty *bool) error, err error) {
-	stat, err := os.Stat(drive)
-	if err == nil {
-		isRegular = stat.Mode().IsRegular()
-	} else {
-		if os.IsNotExist(err) {
-			isRegular = true
-		} else {
-			return nil, false, nil, err
-		}
-	}
-
-	var f *os.File
-	if isRegular {
-		f, err = os.OpenFile(drive, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
-		if err != nil {
-			return nil, false, nil, err
-		}
-
-		// No need to go to end manually due to `os.O_APPEND`
-	} else {
-		f, err = os.OpenFile(drive, os.O_APPEND|os.O_WRONLY, os.ModeCharDevice)
-		if err != nil {
-			return nil, false, nil, err
-		}
-
-		if !overwrite {
-			// Go to end of tape
-			if err := mtio.GoToEndOfTape(f); err != nil {
-				return nil, false, nil, err
-			}
-		}
-	}
-
-	var bw *bufio.Writer
-	var counter *ioext.CounterWriter
-	if isRegular {
-		tw = tar.NewWriter(f)
-	} else {
-		bw = bufio.NewWriterSize(f, mtio.BlockSize*recordSize)
-		counter = &ioext.CounterWriter{Writer: bw, BytesRead: 0}
-		tw = tar.NewWriter(counter)
-	}
-
-	return tw, isRegular, func(dirty *bool) error {
-		// Only write the trailer if we wrote to the archive
-		if *dirty {
-			if err := tw.Close(); err != nil {
-				return err
-			}
-
-			if !isRegular {
-				if mtio.BlockSize*recordSize-counter.BytesRead > 0 {
-					// Fill the rest of the record with zeros
-					if _, err := bw.Write(make([]byte, mtio.BlockSize*recordSize-counter.BytesRead)); err != nil {
-						return err
-					}
-				}
-
-				if err := bw.Flush(); err != nil {
-					return err
-				}
-			}
-		}
-
-		return f.Close()
-	}, nil
-}

internal/tarext/write.go

@@ -0,0 +1,46 @@
+package tarext
+
+import (
+	"archive/tar"
+	"bufio"
+	"io"
+
+	"github.com/pojntfx/stfs/internal/ioext"
+	"github.com/pojntfx/stfs/internal/mtio"
+)
+
+func NewTapeWriter(f io.Writer, isRegular bool, recordSize int) (tw *tar.Writer, cleanup func(dirty *bool) error, err error) {
+	var bw *bufio.Writer
+	var counter *ioext.CounterWriter
+	if isRegular {
+		tw = tar.NewWriter(f)
+	} else {
+		bw = bufio.NewWriterSize(f, mtio.BlockSize*recordSize)
+		counter = &ioext.CounterWriter{Writer: bw, BytesRead: 0}
+		tw = tar.NewWriter(counter)
+	}
+
+	return tw, func(dirty *bool) error {
+		// Only write the trailer if we wrote to the archive
+		if *dirty {
+			if err := tw.Close(); err != nil {
+				return err
+			}
+
+			if !isRegular {
+				if mtio.BlockSize*recordSize-counter.BytesRead > 0 {
+					// Fill the rest of the record with zeros
+					if _, err := bw.Write(make([]byte, mtio.BlockSize*recordSize-counter.BytesRead)); err != nil {
+						return err
+					}
+				}
+
+				if err := bw.Flush(); err != nil {
+					return err
+				}
+			}
+		}
+
+		return nil
+	}, nil
+}

pkg/config/config.go

@@ -1,7 +1,26 @@
 package config
 
-type StateConfig struct {
-	Drive    string
+import (
+	"io"
+	"os"
+)
+
+type DriveReaderConfig struct {
+	Drive          io.ReadSeeker
+	DriveIsRegular bool
+}
+
+type DriveWriterConfig struct {
+	Drive          io.Writer
+	DriveIsRegular bool
+}
+
+type DriveConfig struct {
+	Drive          *os.File
+	DriveIsRegular bool
+}
+
+type MetadataConfig struct {
 	Metadata string
 }
 
@@ -16,3 +35,7 @@ type CryptoConfig struct {
 	Identity  interface{}
 	Password  string
 }
+
+type PasswordConfig struct {
+	Password string
+}

pkg/hardware/config.go

@@ -1,5 +0,0 @@
-package hardware
-
-type DriveConfig struct {
-	Drive string
-}

pkg/hardware/eject.go

@@ -1,19 +1,12 @@
 package hardware
 
 import (
-	"os"
-
 	"github.com/pojntfx/stfs/internal/mtio"
+	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func Eject(
-	state DriveConfig,
+	state config.DriveConfig,
 ) error {
-	f, err := os.OpenFile(state.Drive, os.O_RDONLY, os.ModeCharDevice)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	return mtio.EjectTape(f)
+	return mtio.EjectTape(state.Drive)
 }

pkg/hardware/tell.go

@@ -1,19 +1,12 @@
 package hardware
 
 import (
-	"os"
-
 	"github.com/pojntfx/stfs/internal/mtio"
+	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func Tell(
-	state DriveConfig,
+	state config.DriveConfig,
 ) (int64, error) {
-	f, err := os.OpenFile(state.Drive, os.O_RDONLY, os.ModeCharDevice)
-	if err != nil {
-		return -1, err
-	}
-	defer f.Close()
-
-	return mtio.GetCurrentRecordFromTape(f)
+	return mtio.GetCurrentRecordFromTape(state.Drive)
 }

pkg/inventory/config.go

@@ -1,5 +0,0 @@
-package inventory
-
-type MetadataConfig struct {
-	Metadata string
-}

pkg/inventory/find.go

@@ -8,10 +8,11 @@ import (
 	"github.com/pojntfx/stfs/internal/converters"
 	models "github.com/pojntfx/stfs/internal/db/sqlite/models/metadata"
 	"github.com/pojntfx/stfs/internal/persisters"
+	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func Find(
-	state MetadataConfig,
+	state config.MetadataConfig,
 
 	expression string,
 

pkg/inventory/list.go

@@ -7,10 +7,11 @@ import (
 	"github.com/pojntfx/stfs/internal/converters"
 	models "github.com/pojntfx/stfs/internal/db/sqlite/models/metadata"
 	"github.com/pojntfx/stfs/internal/persisters"
+	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func List(
-	state MetadataConfig,
+	state config.MetadataConfig,
 
 	name string,
 

pkg/operations/archive.go

@@ -20,7 +20,7 @@ import (
 	"github.com/pojntfx/stfs/internal/signature"
 	"github.com/pojntfx/stfs/internal/statext"
 	"github.com/pojntfx/stfs/internal/suffix"
-	"github.com/pojntfx/stfs/internal/tape"
+	"github.com/pojntfx/stfs/internal/tarext"
 	"github.com/pojntfx/stfs/pkg/config"
 )
 
@@ -29,73 +29,21 @@ var (
 )
 
 func Archive(
-	state config.StateConfig,
+	writer config.DriveWriterConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
 	recordSize int,
 	from string,
-	overwrite bool,
 	compressionLevel string,
 
 	onHeader func(hdr *models.Header),
 ) ([]*tar.Header, error) {
 	dirty := false
-	tw, isRegular, cleanup, err := tape.OpenTapeWriteOnly(state.Drive, recordSize, overwrite)
+	tw, cleanup, err := tarext.NewTapeWriter(writer.Drive, writer.DriveIsRegular, recordSize)
 	if err != nil {
 		return []*tar.Header{}, err
 	}
-
-	if overwrite {
-		if isRegular {
-			if err := cleanup(&dirty); err != nil { // dirty will always be false here
-				return []*tar.Header{}, err
-			}
-
-			f, err := os.OpenFile(state.Drive, os.O_WRONLY|os.O_CREATE, 0600)
-			if err != nil {
-				return []*tar.Header{}, err
-			}
-
-			// Clear the file's content
-			if err := f.Truncate(0); err != nil {
-				return []*tar.Header{}, err
-			}
-
-			if err := f.Close(); err != nil {
-				return []*tar.Header{}, err
-			}
-
-			tw, isRegular, cleanup, err = tape.OpenTapeWriteOnly(state.Drive, recordSize, overwrite)
-			if err != nil {
-				return []*tar.Header{}, err
-			}
-		} else {
-			if err := cleanup(&dirty); err != nil { // dirty will always be false here
-				return []*tar.Header{}, err
-			}
-
-			f, err := os.OpenFile(state.Drive, os.O_WRONLY, os.ModeCharDevice)
-			if err != nil {
-				return []*tar.Header{}, err
-			}
-
-			// Seek to the start of the tape
-			if err := mtio.SeekToRecordOnTape(f, 0); err != nil {
-				return []*tar.Header{}, err
-			}
-
-			if err := f.Close(); err != nil {
-				return []*tar.Header{}, err
-			}
-
-			tw, isRegular, cleanup, err = tape.OpenTapeWriteOnly(state.Drive, recordSize, overwrite)
-			if err != nil {
-				return []*tar.Header{}, err
-			}
-		}
-	}
-
 	defer cleanup(&dirty)
 
 	headers := []*tar.Header{}
@@ -143,7 +91,7 @@ func Archive(
 				encryptor,
 				pipes.Compression,
 				compressionLevel,
-				isRegular,
+				writer.DriveIsRegular,
 				recordSize,
 			)
 			if err != nil {
@@ -155,12 +103,12 @@ func Archive(
 				return err
 			}
 
-			signer, sign, err := signature.Sign(file, isRegular, pipes.Signature, crypto.Identity)
+			signer, sign, err := signature.Sign(file, writer.DriveIsRegular, pipes.Signature, crypto.Identity)
 			if err != nil {
 				return err
 			}
 
-			if isRegular {
+			if writer.DriveIsRegular {
 				if _, err := io.Copy(compressor, signer); err != nil {
 					return err
 				}
@@ -219,7 +167,7 @@ func Archive(
 		hdrToAppend := *hdr
 		headers = append(headers, &hdrToAppend)
 
-		if err := signature.SignHeader(hdr, isRegular, pipes.Signature, crypto.Identity); err != nil {
+		if err := signature.SignHeader(hdr, writer.DriveIsRegular, pipes.Signature, crypto.Identity); err != nil {
 			return err
 		}
 
@@ -247,7 +195,7 @@ func Archive(
 			encryptor,
 			pipes.Compression,
 			compressionLevel,
-			isRegular,
+			writer.DriveIsRegular,
 			recordSize,
 		)
 		if err != nil {
@@ -259,7 +207,7 @@ func Archive(
 			return err
 		}
 
-		if isRegular {
+		if writer.DriveIsRegular {
 			if _, err := io.Copy(compressor, file); err != nil {
 				return err
 			}

pkg/operations/delete.go

@@ -10,13 +10,16 @@ import (
 	"github.com/pojntfx/stfs/internal/persisters"
 	"github.com/pojntfx/stfs/internal/records"
 	"github.com/pojntfx/stfs/internal/signature"
-	"github.com/pojntfx/stfs/internal/tape"
+	"github.com/pojntfx/stfs/internal/tarext"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/recovery"
 )
 
 func Delete(
-	state config.StateConfig,
+	writer config.DriveWriterConfig,
+	reader config.DriveReaderConfig,
+	drive config.DriveConfig,
+	metadata config.MetadataConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -26,13 +29,13 @@ func Delete(
 	onHeader func(hdr *models.Header),
 ) error {
 	dirty := false
-	tw, isRegular, cleanup, err := tape.OpenTapeWriteOnly(state.Drive, recordSize, false)
+	tw, cleanup, err := tarext.NewTapeWriter(writer.Drive, writer.DriveIsRegular, recordSize)
 	if err != nil {
 		return err
 	}
 	defer cleanup(&dirty)
 
-	metadataPersister := persisters.NewMetadataPersister(state.Metadata)
+	metadataPersister := persisters.NewMetadataPersister(metadata.Metadata)
 	if err := metadataPersister.Open(); err != nil {
 		return err
 	}
@@ -60,7 +63,7 @@ func Delete(
 	}
 
 	// Append deletion hdrs to the tape or tar file
-	hdrs := []*tar.Header{}
+	hdrs := []tar.Header{}
 	for _, dbhdr := range headersToDelete {
 		hdr, err := converters.DBHeaderToTarHeader(dbhdr)
 		if err != nil {
@@ -71,7 +74,18 @@ func Delete(
 		hdr.PAXRecords[records.STFSRecordVersion] = records.STFSRecordVersion1
 		hdr.PAXRecords[records.STFSRecordAction] = records.STFSRecordActionDelete
 
-		if err := signature.SignHeader(hdr, isRegular, pipes.Signature, crypto.Identity); err != nil {
+		hdrs = append(hdrs, *hdr)
+
+		if onHeader != nil {
+			dbhdr, err := converters.TarHeaderToDBHeader(-1, -1, -1, -1, hdr)
+			if err != nil {
+				return err
+			}
+
+			onHeader(dbhdr)
+		}
+
+		if err := signature.SignHeader(hdr, writer.DriveIsRegular, pipes.Signature, crypto.Identity); err != nil {
 			return err
 		}
 
@@ -84,21 +98,12 @@ func Delete(
 		}
 
 		dirty = true
-
-		if onHeader != nil {
-			dbhdr, err := converters.TarHeaderToDBHeader(-1, -1, -1, -1, hdr)
-			if err != nil {
-				return err
-			}
-
-			onHeader(dbhdr)
-		}
-
-		hdrs = append(hdrs, hdr)
 	}
 
 	return recovery.Index(
-		state,
+		reader,
+		drive,
+		metadata,
 		pipes,
 		crypto,
 
@@ -113,7 +118,7 @@ func Delete(
 				return config.ErrTarHeaderMissing
 			}
 
-			*hdr = *hdrs[i]
+			*hdr = hdrs[i]
 
 			return nil
 		},

pkg/operations/move.go

@@ -11,13 +11,16 @@ import (
 	"github.com/pojntfx/stfs/internal/persisters"
 	"github.com/pojntfx/stfs/internal/records"
 	"github.com/pojntfx/stfs/internal/signature"
-	"github.com/pojntfx/stfs/internal/tape"
+	"github.com/pojntfx/stfs/internal/tarext"
 	"github.com/pojntfx/stfs/pkg/config"
 	"github.com/pojntfx/stfs/pkg/recovery"
 )
 
 func Move(
-	state config.StateConfig,
+	writer config.DriveWriterConfig,
+	drive config.DriveConfig,
+	reader config.DriveReaderConfig,
+	metadata config.MetadataConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -28,13 +31,13 @@ func Move(
 	onHeader func(hdr *models.Header),
 ) error {
 	dirty := false
-	tw, isRegular, cleanup, err := tape.OpenTapeWriteOnly(state.Drive, recordSize, false)
+	tw, cleanup, err := tarext.NewTapeWriter(writer.Drive, writer.DriveIsRegular, recordSize)
 	if err != nil {
 		return err
 	}
 	defer cleanup(&dirty)
 
-	metadataPersister := persisters.NewMetadataPersister(state.Metadata)
+	metadataPersister := persisters.NewMetadataPersister(metadata.Metadata)
 	if err := metadataPersister.Open(); err != nil {
 		return err
 	}
@@ -62,7 +65,7 @@ func Move(
 	}
 
 	// Append move headers to the tape or tar file
-	hdrs := []*tar.Header{}
+	hdrs := []tar.Header{}
 	for _, dbhdr := range headersToMove {
 		hdr, err := converters.DBHeaderToTarHeader(dbhdr)
 		if err != nil {
@@ -75,7 +78,18 @@ func Move(
 		hdr.PAXRecords[records.STFSRecordAction] = records.STFSRecordActionUpdate
 		hdr.PAXRecords[records.STFSRecordReplacesName] = dbhdr.Name
 
-		if err := signature.SignHeader(hdr, isRegular, pipes.Signature, crypto.Identity); err != nil {
+		hdrs = append(hdrs, *hdr)
+
+		if onHeader != nil {
+			dbhdr, err := converters.TarHeaderToDBHeader(-1, -1, -1, -1, hdr)
+			if err != nil {
+				return err
+			}
+
+			onHeader(dbhdr)
+		}
+
+		if err := signature.SignHeader(hdr, writer.DriveIsRegular, pipes.Signature, crypto.Identity); err != nil {
 			return err
 		}
 
@@ -88,21 +102,12 @@ func Move(
 		}
 
 		dirty = true
-
-		if onHeader != nil {
-			dbhdr, err := converters.TarHeaderToDBHeader(-1, -1, -1, -1, hdr)
-			if err != nil {
-				return err
-			}
-
-			onHeader(dbhdr)
-		}
-
-		hdrs = append(hdrs, hdr)
 	}
 
 	return recovery.Index(
-		state,
+		reader,
+		drive,
+		metadata,
 		pipes,
 		crypto,
 
@@ -117,7 +122,7 @@ func Move(
 				return config.ErrTarHeaderMissing
 			}
 
-			*hdr = *hdrs[i]
+			*hdr = hdrs[i]
 
 			return nil
 		},

pkg/operations/restore.go

@@ -11,12 +11,13 @@ import (
 	models "github.com/pojntfx/stfs/internal/db/sqlite/models/metadata"
 	"github.com/pojntfx/stfs/internal/persisters"
 	"github.com/pojntfx/stfs/pkg/config"
-	"github.com/pojntfx/stfs/pkg/hardware"
 	"github.com/pojntfx/stfs/pkg/recovery"
 )
 
 func Restore(
-	state config.StateConfig,
+	reader config.DriveReaderConfig,
+	drive config.DriveConfig,
+	metadata config.MetadataConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -27,7 +28,7 @@ func Restore(
 
 	onHeader func(hdr *models.Header),
 ) error {
-	metadataPersister := persisters.NewMetadataPersister(state.Metadata)
+	metadataPersister := persisters.NewMetadataPersister(metadata.Metadata)
 	if err := metadataPersister.Open(); err != nil {
 		return err
 	}
@@ -78,9 +79,8 @@ func Restore(
 		}
 
 		if err := recovery.Fetch(
-			hardware.DriveConfig{
-				Drive: state.Drive,
-			},
+			reader,
+			drive,
 			pipes,
 			crypto,
 

pkg/operations/update.go

@@ -18,12 +18,12 @@ import (
 	"github.com/pojntfx/stfs/internal/signature"
 	"github.com/pojntfx/stfs/internal/statext"
 	"github.com/pojntfx/stfs/internal/suffix"
-	"github.com/pojntfx/stfs/internal/tape"
+	"github.com/pojntfx/stfs/internal/tarext"
 	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func Update(
-	state config.StateConfig,
+	writer config.DriveWriterConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -35,7 +35,7 @@ func Update(
 	onHeader func(hdr *models.Header),
 ) ([]*tar.Header, error) {
 	dirty := false
-	tw, isRegular, cleanup, err := tape.OpenTapeWriteOnly(state.Drive, recordSize, false)
+	tw, cleanup, err := tarext.NewTapeWriter(writer.Drive, writer.DriveIsRegular, recordSize)
 	if err != nil {
 		return []*tar.Header{}, err
 	}
@@ -86,7 +86,7 @@ func Update(
 				encryptor,
 				pipes.Compression,
 				compressionLevel,
-				isRegular,
+				writer.DriveIsRegular,
 				recordSize,
 			)
 			if err != nil {
@@ -98,12 +98,12 @@ func Update(
 				return err
 			}
 
-			signer, sign, err := signature.Sign(file, isRegular, pipes.Signature, crypto.Identity)
+			signer, sign, err := signature.Sign(file, writer.DriveIsRegular, pipes.Signature, crypto.Identity)
 			if err != nil {
 				return err
 			}
 
-			if isRegular {
+			if writer.DriveIsRegular {
 				if _, err := io.Copy(compressor, signer); err != nil {
 					return err
 				}
@@ -165,7 +165,7 @@ func Update(
 			hdrToAppend := *hdr
 			headers = append(headers, &hdrToAppend)
 
-			if err := signature.SignHeader(hdr, isRegular, pipes.Signature, crypto.Identity); err != nil {
+			if err := signature.SignHeader(hdr, writer.DriveIsRegular, pipes.Signature, crypto.Identity); err != nil {
 				return err
 			}
 
@@ -191,7 +191,7 @@ func Update(
 				encryptor,
 				pipes.Compression,
 				compressionLevel,
-				isRegular,
+				writer.DriveIsRegular,
 				recordSize,
 			)
 			if err != nil {
@@ -203,7 +203,7 @@ func Update(
 				return err
 			}
 
-			if isRegular {
+			if writer.DriveIsRegular {
 				if _, err := io.Copy(compressor, file); err != nil {
 					return err
 				}
@@ -244,7 +244,7 @@ func Update(
 			hdrToAppend := *hdr
 			headers = append(headers, &hdrToAppend)
 
-			if err := signature.SignHeader(hdr, isRegular, pipes.Signature, crypto.Identity); err != nil {
+			if err := signature.SignHeader(hdr, writer.DriveIsRegular, pipes.Signature, crypto.Identity); err != nil {
 				return err
 			}
 

pkg/recovery/fetch.go

@@ -14,13 +14,12 @@ import (
 	"github.com/pojntfx/stfs/internal/mtio"
 	"github.com/pojntfx/stfs/internal/records"
 	"github.com/pojntfx/stfs/internal/signature"
-	"github.com/pojntfx/stfs/internal/tape"
 	"github.com/pojntfx/stfs/pkg/config"
-	"github.com/pojntfx/stfs/pkg/hardware"
 )
 
 func Fetch(
-	state hardware.DriveConfig,
+	reader config.DriveReaderConfig,
+	drive config.DriveConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -32,28 +31,22 @@ func Fetch(
 
 	onHeader func(hdr *models.Header),
 ) error {
-	f, isRegular, err := tape.OpenTapeReadOnly(state.Drive)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
 	var tr *tar.Reader
-	if isRegular {
+	if reader.DriveIsRegular {
 		// Seek to record and block
-		if _, err := f.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), io.SeekStart); err != nil {
+		if _, err := reader.Drive.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), io.SeekStart); err != nil {
 			return err
 		}
 
-		tr = tar.NewReader(f)
+		tr = tar.NewReader(reader.Drive)
 	} else {
 		// Seek to record
-		if err := mtio.SeekToRecordOnTape(f, int32(record)); err != nil {
+		if err := mtio.SeekToRecordOnTape(drive.Drive, int32(record)); err != nil {
 			return err
 		}
 
 		// Seek to block
-		br := bufio.NewReaderSize(f, mtio.BlockSize*recordSize)
+		br := bufio.NewReaderSize(drive.Drive, mtio.BlockSize*recordSize)
 		if _, err := br.Read(make([]byte, block*mtio.BlockSize)); err != nil {
 			return err
 		}
@@ -70,7 +63,7 @@ func Fetch(
 		return err
 	}
 
-	if err := signature.VerifyHeader(hdr, isRegular, pipes.Signature, crypto.Recipient); err != nil {
+	if err := signature.VerifyHeader(hdr, drive.DriveIsRegular, pipes.Signature, crypto.Recipient); err != nil {
 		return err
 	}
 
@@ -127,7 +120,7 @@ func Fetch(
 			}
 		}
 
-		verifier, verify, err := signature.Verify(decompressor, isRegular, pipes.Signature, crypto.Recipient, sig)
+		verifier, verify, err := signature.Verify(decompressor, drive.DriveIsRegular, pipes.Signature, crypto.Recipient, sig)
 		if err != nil {
 			return err
 		}

pkg/recovery/index.go

@@ -18,12 +18,13 @@ import (
 	"github.com/pojntfx/stfs/internal/persisters"
 	"github.com/pojntfx/stfs/internal/records"
 	"github.com/pojntfx/stfs/internal/suffix"
-	"github.com/pojntfx/stfs/internal/tape"
 	"github.com/pojntfx/stfs/pkg/config"
 )
 
 func Index(
-	state config.StateConfig,
+	reader config.DriveReaderConfig,
+	drive config.DriveConfig,
+	metadata config.MetadataConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -45,7 +46,7 @@ func Index(
 	onHeader func(hdr *models.Header),
 ) error {
 	if overwrite {
-		f, err := os.OpenFile(state.Metadata, os.O_WRONLY|os.O_CREATE, 0600)
+		f, err := os.OpenFile(metadata.Metadata, os.O_WRONLY|os.O_CREATE, 0600)
 		if err != nil {
 			return err
 		}
@@ -59,24 +60,18 @@ func Index(
 		}
 	}
 
-	metadataPersister := persisters.NewMetadataPersister(state.Metadata)
+	metadataPersister := persisters.NewMetadataPersister(metadata.Metadata)
 	if err := metadataPersister.Open(); err != nil {
 		return err
 	}
 
-	f, isRegular, err := tape.OpenTapeReadOnly(state.Drive)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if isRegular {
+	if reader.DriveIsRegular {
 		// Seek to record and block
-		if _, err := f.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), 0); err != nil {
+		if _, err := reader.Drive.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), 0); err != nil {
 			return err
 		}
 
-		tr := tar.NewReader(f)
+		tr := tar.NewReader(reader.Drive)
 
 		record := int64(record)
 		block := int64(block)
@@ -86,7 +81,7 @@ func Index(
 			hdr, err := tr.Next()
 			if err != nil {
 				for {
-					curr, err := f.Seek(0, io.SeekCurrent)
+					curr, err := reader.Drive.Seek(0, io.SeekCurrent)
 					if err != nil {
 						return err
 					}
@@ -104,11 +99,11 @@ func Index(
 					}
 
 					// Seek to record and block
-					if _, err := f.Seek(int64((recordSize*mtio.BlockSize*int(record))+int(block)*mtio.BlockSize), io.SeekStart); err != nil {
+					if _, err := reader.Drive.Seek(int64((recordSize*mtio.BlockSize*int(record))+int(block)*mtio.BlockSize), io.SeekStart); err != nil {
 						return err
 					}
 
-					tr = tar.NewReader(f)
+					tr = tar.NewReader(reader.Drive)
 
 					hdr, err = tr.Next()
 					if err != nil {
@@ -135,7 +130,7 @@ func Index(
 					return err
 				}
 
-				if err := verifyHeader(hdr, isRegular); err != nil {
+				if err := verifyHeader(hdr, reader.DriveIsRegular); err != nil {
 					return err
 				}
 
@@ -144,7 +139,7 @@ func Index(
 				}
 			}
 
-			curr, err := f.Seek(0, io.SeekCurrent)
+			curr, err := reader.Drive.Seek(0, io.SeekCurrent)
 			if err != nil {
 				return err
 			}
@@ -153,7 +148,7 @@ func Index(
 				return err
 			}
 
-			currAndSize, err := f.Seek(0, io.SeekCurrent)
+			currAndSize, err := reader.Drive.Seek(0, io.SeekCurrent)
 			if err != nil {
 				return err
 			}
@@ -171,12 +166,12 @@ func Index(
 		}
 	} else {
 		// Seek to record
-		if err := mtio.SeekToRecordOnTape(f, int32(record)); err != nil {
+		if err := mtio.SeekToRecordOnTape(drive.Drive, int32(record)); err != nil {
 			return err
 		}
 
 		// Seek to block
-		br := bufio.NewReaderSize(f, mtio.BlockSize*recordSize)
+		br := bufio.NewReaderSize(drive.Drive, mtio.BlockSize*recordSize)
 		if _, err := br.Read(make([]byte, block*mtio.BlockSize)); err != nil {
 			return err
 		}
@@ -193,19 +188,19 @@ func Index(
 			hdr, err := tr.Next()
 			if err != nil {
 				if err == io.EOF {
-					if err := mtio.GoToNextFileOnTape(f); err != nil {
+					if err := mtio.GoToNextFileOnTape(drive.Drive); err != nil {
 						// EOD
 
 						break
 					}
 
-					record, err = mtio.GetCurrentRecordFromTape(f)
+					record, err = mtio.GetCurrentRecordFromTape(drive.Drive)
 					if err != nil {
 						return err
 					}
 					block = 0
 
-					br = bufio.NewReaderSize(f, mtio.BlockSize*recordSize)
+					br = bufio.NewReaderSize(drive.Drive, mtio.BlockSize*recordSize)
 					curr = int64(int64(recordSize) * mtio.BlockSize * record)
 					counter = &ioext.CounterReader{Reader: br, BytesRead: int(curr)}
 					tr = tar.NewReader(counter)
@@ -221,7 +216,7 @@ func Index(
 					return err
 				}
 
-				if err := verifyHeader(hdr, isRegular); err != nil {
+				if err := verifyHeader(hdr, drive.DriveIsRegular); err != nil {
 					return err
 				}
 

pkg/recovery/query.go

@@ -13,13 +13,11 @@ import (
 	"github.com/pojntfx/stfs/internal/ioext"
 	"github.com/pojntfx/stfs/internal/mtio"
 	"github.com/pojntfx/stfs/internal/signature"
-	"github.com/pojntfx/stfs/internal/tape"
 	"github.com/pojntfx/stfs/pkg/config"
-	"github.com/pojntfx/stfs/pkg/hardware"
 )
 
 func Query(
-	state hardware.DriveConfig,
+	state config.DriveConfig,
 	pipes config.PipeConfig,
 	crypto config.CryptoConfig,
 
@@ -29,21 +27,15 @@ func Query(
 
 	onHeader func(hdr *models.Header),
 ) ([]*tar.Header, error) {
-	f, isRegular, err := tape.OpenTapeReadOnly(state.Drive)
-	if err != nil {
-		return []*tar.Header{}, err
-	}
-	defer f.Close()
-
 	headers := []*tar.Header{}
 
-	if isRegular {
+	if state.DriveIsRegular {
 		// Seek to record and block
-		if _, err := f.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), 0); err != nil {
+		if _, err := state.Drive.Seek(int64((recordSize*mtio.BlockSize*record)+block*mtio.BlockSize), 0); err != nil {
 			return []*tar.Header{}, err
 		}
 
-		tr := tar.NewReader(f)
+		tr := tar.NewReader(state.Drive)
 
 		record := int64(record)
 		block := int64(block)
@@ -52,7 +44,7 @@ func Query(
 			hdr, err := tr.Next()
 			if err != nil {
 				for {
-					curr, err := f.Seek(0, io.SeekCurrent)
+					curr, err := state.Drive.Seek(0, io.SeekCurrent)
 					if err != nil {
 						return []*tar.Header{}, err
 					}
@@ -70,11 +62,11 @@ func Query(
 					}
 
 					// Seek to record and block
-					if _, err := f.Seek(int64((recordSize*mtio.BlockSize*int(record))+int(block)*mtio.BlockSize), io.SeekStart); err != nil {
+					if _, err := state.Drive.Seek(int64((recordSize*mtio.BlockSize*int(record))+int(block)*mtio.BlockSize), io.SeekStart); err != nil {
 						return []*tar.Header{}, err
 					}
 
-					tr = tar.NewReader(f)
+					tr = tar.NewReader(state.Drive)
 
 					hdr, err = tr.Next()
 					if err != nil {
@@ -101,7 +93,7 @@ func Query(
 				return []*tar.Header{}, err
 			}
 
-			if err := signature.VerifyHeader(hdr, isRegular, pipes.Signature, crypto.Recipient); err != nil {
+			if err := signature.VerifyHeader(hdr, state.DriveIsRegular, pipes.Signature, crypto.Recipient); err != nil {
 				return []*tar.Header{}, err
 			}
 
@@ -116,7 +108,7 @@ func Query(
 
 			headers = append(headers, hdr)
 
-			curr, err := f.Seek(0, io.SeekCurrent)
+			curr, err := state.Drive.Seek(0, io.SeekCurrent)
 			if err != nil {
 				return []*tar.Header{}, err
 			}
@@ -125,7 +117,7 @@ func Query(
 				return []*tar.Header{}, err
 			}
 
-			currAndSize, err := f.Seek(0, io.SeekCurrent)
+			currAndSize, err := state.Drive.Seek(0, io.SeekCurrent)
 			if err != nil {
 				return []*tar.Header{}, err
 			}
@@ -141,12 +133,12 @@ func Query(
 		}
 	} else {
 		// Seek to record
-		if err := mtio.SeekToRecordOnTape(f, int32(record)); err != nil {
+		if err := mtio.SeekToRecordOnTape(state.Drive, int32(record)); err != nil {
 			return []*tar.Header{}, err
 		}
 
 		// Seek to block
-		br := bufio.NewReaderSize(f, mtio.BlockSize*recordSize)
+		br := bufio.NewReaderSize(state.Drive, mtio.BlockSize*recordSize)
 		if _, err := br.Read(make([]byte, block*mtio.BlockSize)); err != nil {
 			return []*tar.Header{}, err
 		}
@@ -162,19 +154,19 @@ func Query(
 			hdr, err := tr.Next()
 			if err != nil {
 				if err == io.EOF {
-					if err := mtio.GoToNextFileOnTape(f); err != nil {
+					if err := mtio.GoToNextFileOnTape(state.Drive); err != nil {
 						// EOD
 
 						break
 					}
 
-					record, err = mtio.GetCurrentRecordFromTape(f)
+					record, err = mtio.GetCurrentRecordFromTape(state.Drive)
 					if err != nil {
 						return []*tar.Header{}, err
 					}
 					block = 0
 
-					br = bufio.NewReaderSize(f, mtio.BlockSize*recordSize)
+					br = bufio.NewReaderSize(state.Drive, mtio.BlockSize*recordSize)
 					curr := int64(int64(recordSize) * mtio.BlockSize * record)
 					counter := &ioext.CounterReader{Reader: br, BytesRead: int(curr)}
 					tr = tar.NewReader(counter)
@@ -189,7 +181,7 @@ func Query(
 				return []*tar.Header{}, err
 			}
 
-			if err := signature.VerifyHeader(hdr, isRegular, pipes.Signature, crypto.Recipient); err != nil {
+			if err := signature.VerifyHeader(hdr, state.DriveIsRegular, pipes.Signature, crypto.Recipient); err != nil {
 				return []*tar.Header{}, err
 			}
 

pkg/tape/write.go

@@ -0,0 +1,75 @@
+package tape
+
+import (
+	"os"
+
+	"github.com/pojntfx/stfs/internal/mtio"
+)
+
+func OpenTapeWriteOnly(drive string, recordSize int, overwrite bool) (f *os.File, isRegular bool, err error) {
+	stat, err := os.Stat(drive)
+	if err == nil {
+		isRegular = stat.Mode().IsRegular()
+	} else {
+		if os.IsNotExist(err) {
+			isRegular = true
+		} else {
+			return nil, false, err
+		}
+	}
+
+	if overwrite {
+		if isRegular {
+			f, err := os.OpenFile(drive, os.O_WRONLY|os.O_CREATE, 0600)
+			if err != nil {
+				return nil, false, err
+			}
+
+			// Clear the file's content
+			if err := f.Truncate(0); err != nil {
+				return nil, false, err
+			}
+
+			if err := f.Close(); err != nil {
+				return nil, false, err
+			}
+		} else {
+			f, err := os.OpenFile(drive, os.O_WRONLY, os.ModeCharDevice)
+			if err != nil {
+				return nil, false, err
+			}
+
+			// Seek to the start of the tape
+			if err := mtio.SeekToRecordOnTape(f, 0); err != nil {
+				return nil, false, err
+			}
+
+			if err := f.Close(); err != nil {
+				return nil, false, err
+			}
+		}
+	}
+
+	if isRegular {
+		f, err = os.OpenFile(drive, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+		if err != nil {
+			return nil, false, err
+		}
+
+		// No need to go to end manually due to `os.O_APPEND`
+	} else {
+		f, err = os.OpenFile(drive, os.O_APPEND|os.O_WRONLY, os.ModeCharDevice)
+		if err != nil {
+			return nil, false, err
+		}
+
+		if !overwrite {
+			// Go to end of tape
+			if err := mtio.GoToEndOfTape(f); err != nil {
+				return nil, false, err
+			}
+		}
+	}
+
+	return f, isRegular, nil
+}

pkg/utility/config.go

@@ -1,5 +0,0 @@
-package utility
-
-type PasswordConfig struct {
-	Password string
-}

pkg/utility/keygen.go

@@ -15,7 +15,7 @@ import (
 
 func Keygen(
 	pipes config.PipeConfig,
-	password PasswordConfig,
+	password config.PasswordConfig,
 ) (privkey []byte, pubkey []byte, err error) {
 	if pipes.Encryption != config.NoneKey {
 		priv, pub, err := generateEncryptionKey(pipes.Encryption, password.Password)