Click envvar defaults not shown

[ewels]

I don't think that envvar is considered currently: https://click.palletsprojects.com/en/8.0.x/options/#values-from-environment-variables

See #26 (comment)

[ewels]

Looks like click doesn't natively show this in the help, so not missing anything there:

$ python examples/click/09_envvar.py greet --help
Debug mode is off
Usage: 09_envvar.py greet [OPTIONS]

Options:
  --username TEXT
  --email TEXT
  --help           Show this message and exit.

But Typer does:

$ python examples/typer/03_envvar.py --help
Usage: 03_envvar.py [OPTIONS] COMMAND [ARGS]...

  My amazing tool does all the things.

  This is a minimal example based on documentation from the 'click' package.

  You can try using --help at the top level and also for specific group
  subcommands.

Options:
  --debug / --no-debug            Enable debug mode.  [default: no-debug]
  --bar TEXT                      Lorep ipsum.  [env var: FOO; default: False]
  --install-completion [bash|zsh|fish|powershell|pwsh]
                                  Install completion for the specified shell.
  --show-completion [bash|zsh|fish|powershell|pwsh]
                                  Show completion for the specified shell, to
                                  copy it or customize the installation.
  --help                          Show this message and exit.

I quite like the behaviour, so I think I'll add it as a default for both tools in the Typer style. I'll create an option to disable it.

[ewels]

I quite like the behaviour, so I think I'll add it as a default for both tools in the Typer style. I'll create an option to disable it.

Never mind, there's a show_envvar argument in click.

[taranlu-houzz]

@ewels Is there a way to disable this behavior for the default generated --install-completion and --show-completion commands?

It appears that typer actually hides these by default as well.

[ewels]

So many options 🙈 Could you make a new issue for this please?

[taranlu-houzz]

@ewels Just created #84.