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https://github.com/zellyn/diskii.git
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f57c3a0c06
- Added a generic `Operator` registry and implemented Operators for dos3.3 and NakeOS/Super-Mon disks. - Currently Operators implement only the `Catalog` command.
62 lines
1.2 KiB
Go
62 lines
1.2 KiB
Go
// Copyright © 2016 Zellyn Hunter <zellyn@gmail.com>
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package cmd
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import (
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"fmt"
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"os"
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"github.com/spf13/cobra"
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"github.com/zellyn/diskii/lib/disk"
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_ "github.com/zellyn/diskii/lib/dos33"
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_ "github.com/zellyn/diskii/lib/supermon"
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)
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// catCmd represents the cat command, used to catalog a disk or
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// directory.
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var catCmd = &cobra.Command{
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Use: "cat",
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Short: "print a list of files",
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Long: `Catalog a disk or subdirectory.`,
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Run: func(cmd *cobra.Command, args []string) {
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if err := runCat(args); err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(-1)
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}
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},
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}
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func init() {
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RootCmd.AddCommand(catCmd)
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}
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// runCat performs the actual catalog logic.
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func runCat(args []string) error {
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if len(args) < 1 || len(args) > 2 {
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return fmt.Errorf("cat expects a disk image filename, and an optional subdirectory")
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}
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sd, err := disk.Open(args[0])
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if err != nil {
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return err
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}
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op, err := disk.OperatorFor(sd)
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if err != nil {
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return err
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}
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subdir := ""
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if len(args) == 2 {
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if !op.HasSubdirs() {
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return fmt.Errorf("Disks of type %q cannot have subdirectories", op.Name())
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}
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subdir = args[1]
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}
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fds, err := op.Catalog(subdir)
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if err != nil {
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return err
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}
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for _, fd := range fds {
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fmt.Println(fd.Name)
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}
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return nil
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}
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