`pack` command gives wrong help message and doesn't support packing a directory
Metadata
Current evaluation
No evaluation has been recorded for this issue yet.
Issue body
### What needs to get done
Provide the correct parameters in the help message and provide a way to pack a directory.
### Why it needs to get done
- `*craft pack --help` says to use a part name, even though this raises an error:
```bash
~> testcraft pack --help
Usage:
testcraft pack [options] <part-name>
```
- There is no straightforward way for an application to override the pack command to pack a directory because the command requires loading a project file.
Source: https://github.com/canonical/snapcraft/issues/4769
Evaluation history
No evaluation history available.