Correct syntax of compare command?


thank you for Duplicati, I used it instead of CrashPlan. It’s not clear to me what is correct syntax of compare command, it seems that it doesn’t do what I want:

Duplicati.CommandLine.exe compare 0 2 --dbpath=C:\Windows\system32\config\systemprofile\AppData\Local\Duplicati\VHKSZYUOFM.sqlite --verbose


Input command: compare
Input arguments: 

Input options: 
dbpath: C:\Windows\system32\config\systemprofile\AppData\Local\Duplicati\VHKSZYUOFM.sqlite

Listing changes
  1: 12.9.2017 19:19:04
  2: 10.9.2017 15:24:20

I want to compare versions 0 and 2 but it lists versions 1 and 2. What is wrong? When I specify destination URL instead of dbpath, it prompts for passphrase and insist it cannot be empty. My backup destination (USB drive) is without encryption.

Kind regards, Jan

It is confused because it expects the first argument to be the destination url:

> Duplicati.CommandLine.exe help compare
Usage: compare <storage-URL> [<base-version>] [<compare-to>] [<options>]

  Compares two backups and shows differences. If no versions are given, changes are shown between the two latest backups. The versions can either be timestamps or backup version numbers. If only one version is given, the most recent backup is compared to that version.

    Shows names of files
    Adds an include filter (for verbose output)
    Adds an exclude filter (for verbose output)

So it wants you to write:

Duplicati.CommandLine.exe compare file://dummy 0 2 --dbpath=C:\Windows\system32\config\systemprofile\AppData\Local\Duplicati\VHKSZYUOFM.sqlite --full-result

Duplicati expects encryption, so you need to add --no-encryption to disable the passphrase prompt. This command will read the data straight from the drive without relying on the local database:

Duplicati.CommandLine.exe compare d:\data 0 2 --no-encryption --full-result --no-local-db