Better project setup, now with a structure UV likes

2024/src/aoc/__main__.py

@@ -0,0 +1,37 @@
+import datetime
+import time
+
+import click
+
+from aoc import days
+
+
+@click.command()
+@click.option(
+    "-i",
+    "--input",
+    "data",
+    type=click.File(mode="rt", encoding="utf8"),
+    default="-",
+    help="Problem input file",
+)
+@click.option("-t", "--time", "timing", is_flag=True, help="Print elapsed time afterwards")
+@click.argument("day", required=True)
+def main(day: int, timing: bool, data: str) -> None:
+    runner_class = days.get_runner(day)
+
+    start = time.perf_counter_ns()
+
+    part1, part2 = runner_class.run_both(data)
+
+    if timing:
+        elapsed = time.perf_counter_ns() - start
+        delta = datetime.timedelta(microseconds=elapsed / 1000)
+        click.echo(f"Elapsed: {delta}", err=True)
+
+    click.echo(part1)
+    click.echo(part2)
+
+
+if __name__ == "__main__":
+    main()