130 lines
3.7 KiB
Go
130 lines
3.7 KiB
Go
package lsf
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import (
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"fmt"
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"io"
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"os"
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"github.com/ncw/rclone/cmd"
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"github.com/ncw/rclone/cmd/ls/lshelp"
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"github.com/ncw/rclone/fs"
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"github.com/ncw/rclone/fs/hash"
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"github.com/ncw/rclone/fs/operations"
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"github.com/ncw/rclone/fs/walk"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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var (
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format string
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separator string
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dirSlash bool
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recurse bool
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hashType = hash.MD5
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filesOnly bool
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dirsOnly bool
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)
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func init() {
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cmd.Root.AddCommand(commandDefintion)
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flags := commandDefintion.Flags()
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flags.StringVarP(&format, "format", "F", "p", "Output format - see help for details")
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flags.StringVarP(&separator, "separator", "s", ";", "Separator for the items in the format.")
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flags.BoolVarP(&dirSlash, "dir-slash", "d", true, "Append a slash to directory names.")
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flags.VarP(&hashType, "hash", "", "Use this hash when `h` is used in the format MD5|SHA-1|DropboxHash")
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flags.BoolVarP(&filesOnly, "files-only", "", false, "Only list files.")
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flags.BoolVarP(&dirsOnly, "dirs-only", "", false, "Only list directories.")
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commandDefintion.Flags().BoolVarP(&recurse, "recursive", "R", false, "Recurse into the listing.")
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}
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var commandDefintion = &cobra.Command{
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Use: "lsf remote:path",
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Short: `List directories and objects in remote:path formatted for parsing`,
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Long: `
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List the contents of the source path (directories and objects) to
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standard output in a form which is easy to parse by scripts. By
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default this will just be the names of the objects and directories,
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one per line. The directories will have a / suffix.
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Use the --format option to control what gets listed. By default this
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is just the path, but you can use these parameters to control the
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output:
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p - path
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s - size
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t - modification time
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h - hash
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So if you wanted the path, size and modification time, you would use
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--format "pst", or maybe --format "tsp" to put the path last.
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If you specify "h" in the format you will get the MD5 hash by default,
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use the "--hash" flag to change which hash you want. Note that this
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can be returned as an empty string if it isn't available on the object
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(and for directories), "ERROR" if there was an error reading it from
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the object and "UNSUPPORTED" if that object does not support that hash
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type.
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For example to emulate the md5sum command you can use
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rclone lsf -R --hash MD5 --format hp --separator " " --files-only .
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(Though "rclone md5sum ." is an easier way of typing this.)
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By default the separator is ";" this can be changed with the
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--separator flag. Note that separators aren't escaped in the path so
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putting it last is a good strategy.
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` + lshelp.Help,
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Run: func(command *cobra.Command, args []string) {
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cmd.CheckArgs(1, 1, command, args)
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fsrc := cmd.NewFsSrc(args)
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cmd.Run(false, false, command, func() error {
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return Lsf(fsrc, os.Stdout)
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})
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},
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}
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// Lsf lists all the objects in the path with modification time, size
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// and path in specific format.
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func Lsf(fsrc fs.Fs, out io.Writer) error {
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var list operations.ListFormat
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list.SetSeparator(separator)
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list.SetDirSlash(dirSlash)
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for _, char := range format {
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switch char {
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case 'p':
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list.AddPath()
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case 't':
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list.AddModTime()
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case 's':
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list.AddSize()
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case 'h':
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list.AddHash(hashType)
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default:
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return errors.Errorf("Unknown format character %q", char)
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}
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}
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return walk.Walk(fsrc, "", false, operations.ConfigMaxDepth(recurse), func(path string, entries fs.DirEntries, err error) error {
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if err != nil {
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fs.CountError(err)
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fs.Errorf(path, "error listing: %v", err)
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return nil
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}
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for _, entry := range entries {
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_, isDir := entry.(fs.Directory)
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if isDir {
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if filesOnly {
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continue
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}
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} else {
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if dirsOnly {
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continue
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}
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}
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fmt.Fprintln(out, operations.ListFormatted(&entry, &list))
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}
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return nil
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})
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}
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