Rewrite get_key.py to use click instead of typer

Typer doesn't work with Click 8[1].

[1] https://github.com/tiangolo/typer/issues/280

README.md

@@ -9,7 +9,7 @@ This repository contains the complete collection of ansible playbooks and roles
 
 Install these packages:
   - terraform
-  - python-typer
+  - python-click
   - python-jmespath
   - moreutils (for playbooks/tasks/reencrypt-vault-key.yml)
 

misc/get_key.py

@@ -7,11 +7,9 @@ from contextlib import contextmanager
 from enum import Enum
 from pathlib import Path
 from typing import List
-import typer
+import click
 import yaml
 
-app = typer.Typer()
-
 
 @contextmanager
 def chdir(path):
@@ -56,14 +54,11 @@ class OutputFormat(str, Enum):
     def __str__(self):
         return self.value
 
-
-def main(
-    vault: Path = typer.Argument(...),
-    keys: List[str] = typer.Argument(...),
-    format: OutputFormat = typer.Option(
-        OutputFormat.BARE, show_default=True, help="Output format"
-    ),
-):
+@click.command()
+@click.argument('vault', type=click.Path(exists=True))
+@click.argument('keys', nargs=-1)
+@click.option('--format', default=OutputFormat.BARE, type=click.Choice([e.value for e in OutputFormat]), help='Output format')
+def main(vault, keys, format):
     """
     Get a bunch of entries from the vault located at VAULT.
 
@@ -84,4 +79,4 @@ def main(
 
 
 if __name__ == "__main__":
-    typer.run(main)
+    main()