feat: refactor app

Makefile

@@ -1,11 +1,16 @@
 .PHONY: lint
 lint: 
-	black -l 99 .
-	flake8 .
-	mypy . 
-	vulture .
-	bandit .
+	pipenv run black -l 99 .
+	pipenv run flake8 .
+	pipenv run mypy . 
+	pipenv run vulture .
+	pipenv run bandit .
 
 .PHONY: test
 test: 
-	pytest -v app/
+	pytest -v
+
+.PHONY: cli
+cli: 
+	pipenv run python app/main.py
+

Pipfile

@@ -4,6 +4,7 @@ verify_ssl = true
 name = "pypi"
 
 [packages]
+typer = "*"
 
 [dev-packages]
 bandit = "*"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "59d461042336fd4cdcc06bf22ef4f96e37a2192ea2a45f76767151f8db5502d0"
+            "sha256": "1a3b805c8e7a09b28dbba4cf1ca47933dbbec3fb63377f92acec697ac9ebb920"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -15,7 +15,24 @@
             }
         ]
     },
-    "default": {},
+    "default": {
+        "click": {
+            "hashes": [
+                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
+                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==7.1.2"
+        },
+        "typer": {
+            "hashes": [
+                "sha256:5455d750122cff96745b0dec87368f56d023725a7ebc9d2e54dd23dc86816303",
+                "sha256:ba58b920ce851b12a2d790143009fa00ac1d05b3ff3257061ff69dbdfc3d161b"
+            ],
+            "index": "pypi",
+            "version": "==0.3.2"
+        }
+    },
     "develop": {
         "appdirs": {
             "hashes": [
@@ -50,11 +67,11 @@
         },
         "click": {
             "hashes": [
-                "sha256:8c04c11192119b1ef78ea049e0a6f0463e4c48ef00a30160c704337586f3ad7a",
-                "sha256:fba402a4a47334742d782209a7c79bc448911afe1149d07bdabdf480b3e2f4b6"
+                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
+                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==8.0.1"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==7.1.2"
         },
         "flake8": {
             "hashes": [

app/main.py

@@ -1,6 +1,8 @@
 import random
 import string
 
+import typer
+
 
 def generate_password(seed: int) -> str:
     lowercase = string.ascii_lowercase
@@ -12,3 +14,15 @@ def generate_password(seed: int) -> str:
     random_generator = random.Random(seed)
 
     return "".join(random_generator.sample(letters, 8))
+
+
+app = typer.Typer()
+
+
+@app.command()
+def main() -> None:
+    typer.echo(generate_password(0))
+
+
+if __name__ == "__main__":
+    app()

app/main_test.py

@@ -1,6 +1,7 @@
-from app.main import generate_password
 import pytest
 
+from app.main import generate_password
+
 
 @pytest.mark.parametrize(
     ("seed", "expected"),
@@ -11,4 +12,3 @@ import pytest
 )
 def test_can_generate_random_password(seed: int, expected: str) -> None:
     assert generate_password(seed) == expected
-