FEATURE: add a main command to toolkit.nu (#9135)

# Description
until now, a call to `toolkit` alone would give
```bash
Error: nu:🐚:external_command

  × External command failed
   ╭─[entry #2:1:1]
 1 │ toolkit
   · ───┬───
   ·    ╰── did you mean 'toolkit clippy'?
   ╰────
  help: No such file or directory (os error 2)
```
which i find confusing after a `use toolkit.nu` 🤔 

this PR adds a `main` command to `toolkit.nu` which runs the `help`
command on the module.

# User-Facing Changes
now
```
> use toolkit.nu
> toolkit
Usage:
  > toolkit

Subcommands:
  toolkit check pr - run all the necessary checks and tests to submit a perfect PR
  toolkit clippy - check that you're using the standard code style
  toolkit fmt - check standard code formatting and apply the changes
  toolkit setup-git-hooks - set up git hooks to run:
- `toolkit fmt --check --verbose` on `git commit`
- `toolkit fmt --check --verbose` and `toolkit clippy --verbose` on `git push`
  toolkit test - check that all the tests pass
  toolkit test stdlib - run the tests for the standard library

Flags:
  -h, --help - Display the help message for this command
```

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
-  `toolkit test`
-  `toolkit test stdlib`

# After Submitting
```
$nothing
```
This commit is contained in:
Antoine Stevan 2023-05-08 13:45:29 +02:00 committed by GitHub
parent a2dd948e71
commit a5af77dd72
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@ -245,3 +245,5 @@ export def setup-git-hooks [] {
print $"aborting ('toolkit setup-git-hooks' | pretty-print-command)"
}
}
export def main [] { help toolkit }