rclone/cmd/md5sum/md5sum.go
Ivan Andreev b40d9bd4c4
cmd: add hashSUM file support (#5352)
Currently rclone check supports matching two file trees by sizes and hashes.
This change adds support for SUM files produced by GNU utilities like sha1sum.

Fixes #1005 

Note: checksum by default checks, hashsum by default prints sums.
New flag is named "--checkfile" but carries hash name.
Summary of introduced command forms:

```
rclone check sums.sha1 remote:path --checkfile sha1
rclone checksum sha1 sums.sha1 remote:path             
rclone hashsum sha1 remote:path --checkfile sums.sha1
rclone sha1sum remote:path --checkfile sums.sha1
rclone md5sum remote:path --checkfile sums.md5
```
2021-07-07 18:34:16 +03:00

50 lines
1.6 KiB
Go

package md5sum
import (
"context"
"github.com/rclone/rclone/cmd"
"github.com/rclone/rclone/cmd/hashsum"
"github.com/rclone/rclone/fs/hash"
"github.com/rclone/rclone/fs/operations"
"github.com/spf13/cobra"
)
func init() {
cmd.Root.AddCommand(commandDefinition)
cmdFlags := commandDefinition.Flags()
hashsum.AddHashFlags(cmdFlags)
}
var commandDefinition = &cobra.Command{
Use: "md5sum remote:path",
Short: `Produces an md5sum file for all the objects in the path.`,
Long: `
Produces an md5sum file for all the objects in the path. This
is in the same format as the standard md5sum tool produces.
By default, the hash is requested from the remote. If MD5 is
not supported by the remote, no hash will be returned. With the
download flag, the file will be downloaded from the remote and
hashed locally enabling MD5 for any remote.
`,
Run: func(command *cobra.Command, args []string) {
cmd.CheckArgs(1, 1, command, args)
fsrc := cmd.NewFsSrc(args)
cmd.Run(false, false, command, func() error {
if hashsum.ChecksumFile != "" {
fsum, sumFile := cmd.NewFsFile(hashsum.ChecksumFile)
return operations.CheckSum(context.Background(), fsrc, fsum, sumFile, hash.MD5, nil, hashsum.DownloadFlag)
}
if hashsum.HashsumOutfile == "" {
return operations.HashLister(context.Background(), hash.MD5, hashsum.OutputBase64, hashsum.DownloadFlag, fsrc, nil)
}
output, close, err := hashsum.GetHashsumOutput(hashsum.HashsumOutfile)
if err != nil {
return err
}
defer close()
return operations.HashLister(context.Background(), hash.MD5, hashsum.OutputBase64, hashsum.DownloadFlag, fsrc, output)
})
},
}