Added a check.py for global run and moved exercises to a separate dir

Author: razorblade23

check.py

@@ -0,0 +1,83 @@
+import subprocess
+import sys
+from pathlib import Path
+
+INSTALL_PYTEST_INSTRUCTIONS = """
+python -m venv .venv
+source .venv/bin/activate
+pip install pytest
+"""
+
+
+def check_for_pytest():
+    try:
+        import pytest  # pyright: ignore[reportMissingImports] # noqa: F401
+    except ImportError:
+        print(
+            "❌ No `pytest` installed.\nPlease install `pytest` first.\nRun the following commands, one by one:"
+        )
+
+
+def resolve_exercise_path(query: str) -> Path:
+    target = Path(query)
+    if target.exists():
+        return target
+
+    # Exclude non-exercise folders
+    IGNORED_DIRS = {"__pycache__"}
+
+    matches = []
+    root = Path("./exercises")
+
+    for sub_dir in root.iterdir():
+        if (
+            sub_dir.is_dir()
+            and sub_dir.name not in IGNORED_DIRS
+            and not sub_dir.name.startswith(".")
+        ):
+            matches.extend(sub_dir.glob(f"*{query}*"))
+
+    dirs_only = [m for m in matches if m.is_dir()]
+
+    if len(dirs_only) == 1:
+        return dirs_only[0]
+    elif len(dirs_only) > 1:
+        print(f"⚠️ Ambiguous query '{query}'. Did you mean one of these?")
+        for match in dirs_only:
+            print(f"  - {match}")
+        sys.exit(1)
+
+    print(f"❌ No exercise folder found for: '{query}'")
+    sys.exit(1)
+
+
+def filter_for_excercises_only(exercise_path: Path):
+    for path in exercise_path.iterdir():
+        if (
+            not path.is_dir()
+            and not path.name.endswith("solution.py")
+            and path.name.endswith(".py")
+            and path.name.startswith("test_")
+        ):
+            print(f"Found: {path}")
+            return path
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python check.py <exercise-folder-or-number>")
+        sys.exit(1)
+
+    exercise_path = resolve_exercise_path(sys.argv[1])
+    excercise_only_tests = filter_for_excercises_only(exercise_path)
+
+    # pytest test_<exercise_name>.py -v
+    cmd = ["pytest", str(excercise_only_tests)]
+    result = subprocess.run(cmd)
+
+    if result.returncode == 0:
+        print("\n✨ All tests passed! Great job!")
+
+
+if __name__ == "__main__":
+    main()