Script "restic diff" between the last two snapshots

[cdhowie]

@akrabu

Separately, I was wondering if there was a way to do “restic diff” and automatically compare the last two snapshots without specifying their IDs (or a way to programmatically grab them in order to specify them, perhaps from a “restic snapshots” listing).

Sure, that’s what --json is for. Assuming the hostname is foobar and all snapshots have the same paths, something like this will work on Linux where command substitution and jq are available:

restic diff $(restic snapshots --host foobar | jq -r '.[-2:][].id')

Presumably you can do something similar on Windows using PowerShell – or maybe even in batch files, though it will likely be a bit trickier.