initial commit

src/lib.rs

@@ -0,0 +1,14 @@
+use std::env;
+use std::fs;
+
+pub fn read_file(folder: &str, day: u8) -> String {
+    let cwd = env::current_dir().unwrap();
+
+    let filepath = cwd
+        .join("src")
+        .join(folder)
+        .join(format!("day{:02}.txt", day));
+
+    let f = fs::read_to_string(filepath);
+    f.expect("could not open input file")
+}

src/main.rs

@@ -0,0 +1,74 @@
+use crate::solutions::*;
+use aoc::read_file;
+use std::env;
+use std::fmt::Display;
+use std::time::Instant;
+
+mod helpers;
+mod solutions;
+
+static ANSI_ITALIC: &str = "\x1b[3m";
+static ANSI_BOLD: &str = "\x1b[1m";
+static ANSI_RESET: &str = "\x1b[0m";
+
+fn print_result<T: Display>(func: impl FnOnce(&str) -> T, input: &str) {
+    let timer = Instant::now();
+    let result = func(input);
+    let time = timer.elapsed();
+    println!(
+        "{} {}(elapsed: {:.2?}){}",
+        result, ANSI_ITALIC, time, ANSI_RESET
+    );
+}
+
+macro_rules! solve_day {
+    ($day:path, $input:expr) => {{
+        use $day::*;
+        println!("----");
+        println!("");
+        println!("🎄 {}Part 1{} 🎄", ANSI_BOLD, ANSI_RESET);
+        println!("");
+        print_result(part_one, $input);
+        println!("");
+        println!("🎄 {}Part 2{} 🎄", ANSI_BOLD, ANSI_RESET);
+        println!("");
+        print_result(part_two, $input);
+        println!("");
+        println!("----");
+    }};
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    let day: u8 = args[1].clone().parse().unwrap();
+    let input = read_file("inputs", day);
+
+    match day {
+        1 => solve_day!(day01, &input),
+        2 => solve_day!(day02, &input),
+        3 => solve_day!(day03, &input),
+        4 => solve_day!(day04, &input),
+        5 => solve_day!(day05, &input),
+        6 => solve_day!(day06, &input),
+        7 => solve_day!(day07, &input),
+        8 => solve_day!(day08, &input),
+        9 => solve_day!(day09, &input),
+        10 => solve_day!(day10, &input),
+        11 => solve_day!(day11, &input),
+        12 => solve_day!(day12, &input),
+        13 => solve_day!(day13, &input),
+        14 => solve_day!(day14, &input),
+        15 => solve_day!(day15, &input),
+        16 => solve_day!(day16, &input),
+        17 => solve_day!(day17, &input),
+        18 => solve_day!(day18, &input),
+        19 => solve_day!(day19, &input),
+        20 => solve_day!(day20, &input),
+        21 => solve_day!(day21, &input),
+        22 => solve_day!(day22, &input),
+        23 => solve_day!(day23, &input),
+        24 => solve_day!(day24, &input),
+        25 => solve_day!(day25, &input),
+        _ => println!("day not solved: {}", day),
+    }
+}