Puzzle 1 2022

2022/Cargo.toml

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+[package]
+name = "advent_of_code_2022"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+itertools = "0.10.2"
+regex = "1.6.0"
+
+[dev-dependencies]
+rstest = "0.15.0"
+
+[[example]]
+name = "puzzle_1"

2022/README.md

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+## Advent of code 2022
+
+Using Rust.
+
+Use `cargo run --example puzzle_<number>` to run specific puzzle solutions. Each puzzle needs to be added to `cargo.toml` for this to work.

2022/create_puzzle.py

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+import sys
+
+from pathlib import Path
+
+
+MAIN_TEMPLATE = """use std::time::Instant;
+
+fn part_1(contents: &str) -> u64 {
+    0
+}
+
+fn part_2(contents: &str) -> u64 {
+    0
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rstest::*;
+
+    #[test]
+    fn test_part_1_example() {
+        assert_eq!(part_1(include_str!("./example.txt")), 1);
+    }
+
+    #[test]
+    fn test_part_2_example() {
+        assert_eq!(part_2(include_str!("./example.txt")), 1);
+    }
+
+}
+
+fn main() {
+    let start = Instant::now();
+    let contents = include_str!("./input.txt");
+    let part_1_answer = part_1(contents);
+    println!("Answer for part 1 is: {}", part_1_answer);
+    let part_2_answer = part_2(contents);
+    println!("Answer for part 2 is: {}", part_2_answer);
+    let duration = start.elapsed();
+    println!("Took {:?} to solve this puzzle", duration);
+}
+"""
+
+CARGO_TEMPLATE = """
+[[example]]
+name = "puzzle_{puzzle_number}"
+"""
+
+if __name__ == "__main__":
+    try:
+        puzzle_number = int(sys.argv[1])
+    except IndexError:
+        try:
+            max_puzzle_number = max(
+                int(str(p).split("_")[-1]) for p in Path("examples").iterdir()
+            )
+        except ValueError:
+            max_puzzle_number = 0
+        puzzle_number = max_puzzle_number + 1
+        print(
+            f"No puzzle number supplied, using {puzzle_number} based "
+            "on existing folders"
+        )
+
+    puzzle_folder = Path(f"examples/puzzle_{puzzle_number}/")
+
+    if puzzle_folder.exists():
+        raise ValueError(f"Path {puzzle_folder} already exists!")
+
+    puzzle_folder.mkdir(parents=True, exist_ok=True)
+
+    files = {"input.txt": "", "example.txt": "", "main.rs": MAIN_TEMPLATE}
+    for file_name, content in files.items():
+        file_path = puzzle_folder / file_name
+        with file_path.open("w", encoding="utf-8") as f:
+            f.write(content)
+
+    with open("Cargo.toml", "a") as f:
+        f.write(CARGO_TEMPLATE.format(puzzle_number=puzzle_number))