Thanks a lot @rehanone for your feature request!

I think this is quite a small enhancement which would only affect the rustic CLI and not rustic_core.

There are already several command which are called, see e.g. this config file - and the called hooks could just add to this list.

@aawsome , thanks for a very quick response. Yes I agree that is a very small change in the CLI only. It is already implemented on the repository level in post-create-command and post-create-command as you comment perhaps is alluding to.

@aawsome, I would also like to suggest that making each of these hooks to be a list of commands rather than a single command would be much better in terms of making it flexible. This would not be a big change in the design but allows for adding arbitrary number of commands to be executed against each hook.

+1. I am using restic+resticprofile wrapper and now trying to move to rustic.
There are run-before, run-after, run-after-fail and run-finally options in resticprofile, which I use from the 1st day. Each option can be a list of commands and also supports inheritance + env vars. E.g. you can define them on root level using env vars like run-before: 'echo "== run-before profile $PROFILE_NAME and command $PROFILE_COMMAND"' and then reuse on profile level or command level without any additional configuration.
For backup command I use something like

  run-finally:
    - 'grep -Ev "(^unchanged\\s|\(0 B added, 0 B stored\))" {{$logName}} > "…/logs/bkp-$PROFILE_NAME/$(date '+%Y-%m-%d_%H-%M-%S').log"'`
    - # notify command here

To filter and organize logs and notify if something important happened.

Note: $logName here is a go template variable, but that's a different story. To make hook commands flexible it's enough to set some env vars, containing flags passed to rustic and calculated from current config. Actually, I only used $PROFILE_NAME and paths (source/repo/log-path).

Note 2: resticprofile runs each command in a list separately, so

  run-after:
    - 'my_var=123'
    - 'echo $my_var'

outputs nothing. It may create some inconveniences, but seems more secure.

For reference: resticprofile hooks

Hello I would also be very interested in for that feature. I also suggested hooks for other actions in autorestic (cupcakearmy/autorestic#213) such as backup restore or checking for example.

We have a WIP-PR for this: #1218
Feel free to add any input to the discussion there - or try it out!