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ls.go
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ls.go
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// Copyright © 2016 Dropbox, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"io"
"os"
"text/tabwriter"
"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/files"
"github.com/dustin/go-humanize"
"github.com/spf13/cobra"
)
const deletedItemFormatString = "<<%s>>"
// Sends a get_metadata request for a given path and returns the response
func getFileMetadata(c files.Client, path string) (files.IsMetadata, error) {
arg := files.NewGetMetadataArg(path)
arg.IncludeDeleted = true
res, err := c.GetMetadata(arg)
if err != nil {
return nil, err
}
return res, nil
}
// Invoked by search.go
func printFolderMetadata(w io.Writer, e *files.FolderMetadata, longFormat bool) {
fmt.Fprintf(w, formatFolderMetadata(e, longFormat))
}
// Invoked by search.go and revs.go
func printFileMetadata(w io.Writer, e *files.FileMetadata, longFormat bool) {
fmt.Fprintf(w, formatFileMetadata(e, longFormat))
}
func formatFolderMetadata(e *files.FolderMetadata, longFormat bool) string {
text := fmt.Sprintf("%s\t", e.PathDisplay)
if longFormat {
text = fmt.Sprintf("-\t-\t-\t") + text
}
return text
}
func formatFileMetadata(e *files.FileMetadata, longFormat bool) string {
text := fmt.Sprintf("%s\t", e.PathDisplay)
if longFormat {
text = fmt.Sprintf("%s\t%s\t%s\t", e.Rev, humanize.IBytes(e.Size), humanize.Time(e.ServerModified)) + text
}
return text
}
func formatDeletedMetadata(e *files.DeletedMetadata, longFormat bool) string {
text := fmt.Sprintf("%s\t", e.PathDisplay)
if longFormat {
text = fmt.Sprintf("-\t-\t-\t") + text
}
return text
}
func SetPathDisplayAsDeleted(metadata files.IsMetadata) {
switch item := metadata.(type) {
case *files.FileMetadata:
item.PathDisplay = fmt.Sprintf(deletedItemFormatString, item.PathDisplay)
case *files.FolderMetadata:
item.PathDisplay = fmt.Sprintf(deletedItemFormatString, item.PathDisplay)
case *files.DeletedMetadata:
item.PathDisplay = fmt.Sprintf(deletedItemFormatString, item.PathDisplay)
}
}
func ls(cmd *cobra.Command, args []string) (err error) {
path := ""
if len(args) > 0 {
if path, err = validatePath(args[0]); err != nil {
return err
}
}
arg := files.NewListFolderArg(path)
arg.Recursive, _ = cmd.Flags().GetBool("recurse")
arg.IncludeDeleted, _ = cmd.Flags().GetBool("include-deleted")
onlyDeleted, _ := cmd.Flags().GetBool("only-deleted")
arg.IncludeDeleted = arg.IncludeDeleted || onlyDeleted
long, _ := cmd.Flags().GetBool("long")
w := new(tabwriter.Writer)
w.Init(os.Stdout, 4, 8, 1, ' ', 0)
itemCounter := 0
printItem := func(message string) {
itemCounter = itemCounter + 1
fmt.Fprint(w, message)
if (itemCounter%4 == 0) || long {
fmt.Fprintln(w)
}
}
dbx := files.New(config)
res, err := dbx.ListFolder(arg)
var entries []files.IsMetadata
if err != nil {
listRevisionError, ok := err.(files.ListRevisionsAPIError)
if ok {
// Don't treat a "not_folder" error as fatal; recover by sending a
// get_metadata request for the same path and using that response instead.
if listRevisionError.EndpointError.Path.Tag == files.LookupErrorNotFolder {
var metaRes files.IsMetadata
metaRes, err = getFileMetadata(dbx, path)
entries = []files.IsMetadata{metaRes}
} else {
// Return if there's an error other than "not_folder" or if the follow-up
// metadata request fails.
return err
}
} else {
return err
}
} else {
entries = res.Entries
for res.HasMore {
arg := files.NewListFolderContinueArg(res.Cursor)
res, err = dbx.ListFolderContinue(arg)
if err != nil {
return err
}
entries = append(entries, res.Entries...)
}
}
if long {
fmt.Fprint(w, "Revision\tSize\tLast modified\tPath\n")
}
for _, entry := range entries {
deletedItem, isDeleted := entry.(*files.DeletedMetadata)
if isDeleted {
revisionArg := files.NewListRevisionsArg(deletedItem.PathLower)
res, err := dbx.ListRevisions(revisionArg)
if err != nil {
listRevisionError, ok := err.(files.ListRevisionsAPIError)
if ok {
// We have a ListRevisionsAPIERror
if listRevisionError.EndpointError.Path.Tag == files.LookupErrorNotFile {
// Don't treat a "not_file" error as fatal; recover by sending a
// get_metadata request for the same path and using that response instead.
revision, err := getFileMetadata(dbx, deletedItem.PathLower)
if err != nil {
return err
}
entry = revision
}
}
} else if len(res.Entries) == 0 {
// Occasionally revisions will be returned with an empty Revision entry list.
// So we just use the original entry.
} else {
entry = res.Entries[0]
}
SetPathDisplayAsDeleted(entry)
}
switch f := entry.(type) {
case *files.FileMetadata:
if !onlyDeleted {
printItem(formatFileMetadata(f, long))
}
case *files.FolderMetadata:
if !onlyDeleted {
printItem(formatFolderMetadata(f, long))
}
case *files.DeletedMetadata:
printItem(formatDeletedMetadata(f, long))
}
}
err = w.Flush()
return err
}
// lsCmd represents the ls command
var lsCmd = &cobra.Command{
Use: "ls [flags] [<path>]",
Short: "List files and folders",
Example: ` dbxcli ls / # Or just 'ls'
dbxcli ls /some-folder # Or 'ls some-folder'
dbxcli ls /some-folder/some-file.pdf
dbxcli ls -l`,
RunE: ls,
}
func init() {
RootCmd.AddCommand(lsCmd)
lsCmd.Flags().BoolP("long", "l", false, "Long listing")
lsCmd.Flags().BoolP("recurse", "R", false, "Recursively list all subfolders")
lsCmd.Flags().BoolP("include-deleted", "d", false, "Include deleted files")
lsCmd.Flags().BoolP("only-deleted", "D", false, "Only show deleted files")
}