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c8cfa43ccc
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.
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
package sha1sum
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import (
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"context"
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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/hash"
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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: "sha1sum remote:path",
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Short: `Produces an sha1sum file for all the objects in the path.`,
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Long: `
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Produces an sha1sum file for all the objects in the path. This
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is in the same format as the standard sha1sum tool produces.
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By default, the hash is requested from the remote. If SHA-1 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 SHA-1 for any remote.
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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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fsrc := cmd.NewFsSrc(args)
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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(), hash.SHA1, 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(), hash.SHA1, hashsum.OutputBase64, hashsum.DownloadFlag, fsrc, output)
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})
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},
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}
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