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61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
// Package histogram provides the histogram test command.
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package histogram
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import (
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"context"
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"encoding/json"
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"fmt"
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"os"
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"path"
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"github.com/rclone/rclone/cmd"
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"github.com/rclone/rclone/cmd/test"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/walk"
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"github.com/spf13/cobra"
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)
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func init() {
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test.Command.AddCommand(commandDefinition)
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}
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var commandDefinition = &cobra.Command{
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Use: "histogram [remote:path]",
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Short: `Makes a histogram of file name characters.`,
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Long: `This command outputs JSON which shows the histogram of characters used
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in filenames in the remote:path specified.
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The data doesn't contain any identifying information but is useful for
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the rclone developers when developing filename compression.
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`,
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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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f := cmd.NewFsDir(args)
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ctx := context.Background()
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ci := fs.GetConfig(ctx)
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cmd.Run(false, false, command, func() error {
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var hist [256]int64
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err := walk.ListR(ctx, f, "", false, ci.MaxDepth, walk.ListObjects, func(entries fs.DirEntries) error {
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for _, entry := range entries {
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base := path.Base(entry.Remote())
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for i := range base {
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hist[base[i]]++
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}
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}
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return nil
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})
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if err != nil {
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return err
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}
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enc := json.NewEncoder(os.Stdout)
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// enc.SetIndent("", "\t")
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err = enc.Encode(&hist)
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if err != nil {
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return err
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}
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fmt.Println()
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return nil
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})
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},
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}
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