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This commit modifies the operations.hashSum function by adding an alternate code path. This code path is triggered by passing downloadFlag = True. When activated, rclone will download files from the remote and hash them locally. downloadFlag = False preserves the existing behavior of using the remote to retrieve the hash. This commit modifies HashLister to support the new hashSum method as well as consolidating the roles of HashLister, HashListerBase64, Md5sum, and Sha1sum. The printing of hashes from the function defined in HashLister has been revised to work with --progress. There are light changes to operations.syncFprintf and cmd.startProgress for this. The unit test operations_test.TestHashSums is modified to support this change and test the download functionality. The command functions hashsum, md5sum, sha1sum, and dbhashsum are modified to support this change. A download flag has been added and an output-file flag has been added. The output-file flag writes hashes to a file instead of stdout to avoid the need to redirect stdout.
52 lines
1.7 KiB
Go
52 lines
1.7 KiB
Go
package dbhashsum
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import (
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"context"
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"github.com/rclone/rclone/backend/dropbox"
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"github.com/rclone/rclone/cmd"
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"github.com/rclone/rclone/cmd/hashsum"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/operations"
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"github.com/spf13/cobra"
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)
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func init() {
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cmd.Root.AddCommand(commandDefinition)
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cmdFlags := commandDefinition.Flags()
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hashsum.AddHashFlags(cmdFlags)
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}
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var commandDefinition = &cobra.Command{
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Use: "dbhashsum remote:path",
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Short: `Produces a Dropbox hash file for all the objects in the path.`,
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Long: `
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Produces a Dropbox hash file for all the objects in the path. The
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hashes are calculated according to [Dropbox content hash
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rules](https://www.dropbox.com/developers/reference/content-hash).
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The output is in the same format as md5sum and sha1sum.
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By default, the hash is requested from the remote. If Dropbox hash is
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not supported by the remote, no hash will be returned. With the
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download flag, the file will be downloaded from the remote and
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hashed locally enabling Dropbox hash for any remote.
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`,
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Hidden: true,
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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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fs.Logf(nil, `"rclone dbhashsum" is deprecated, use "rclone hashsum %v %s" instead`, dropbox.DbHashType, args[0])
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cmd.Run(false, false, command, func() error {
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if hashsum.HashsumOutfile == "" {
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return operations.HashLister(context.Background(), dropbox.DbHashType, hashsum.OutputBase64, hashsum.DownloadFlag, fsrc, nil)
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}
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output, close, err := hashsum.GetHashsumOutput(hashsum.HashsumOutfile)
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if err != nil {
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return err
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}
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defer close()
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return operations.HashLister(context.Background(), dropbox.DbHashType, hashsum.OutputBase64, hashsum.DownloadFlag, fsrc, output)
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})
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},
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}
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