feat: handle day25 special case

.github/workflows/trigger-day-scheduling.yml

@@ -73,7 +73,12 @@ jobs:
           DAY_NUMBER: ${{ inputs.day }}
           RUSTFLAGS: "-C target-cpu=native"
         run: |
-          if ! cargo build --test test_build ; then
+          if [ "${{ inputs.day }}" -eq 25 ]; then
+            BUILD_ARGS="--features day_25"
+            else
+            BUILD_ARGS=""
+          fi
+          if ! cargo build --test test_build $BUILD_ARGS; then
             echo "::warning::The day ${{ inputs.day }} module is missing or malformed. Skipping the run."
             echo "valid=false" >> $GITHUB_OUTPUT
           else

rust-runner/Cargo.toml

@@ -2,6 +2,10 @@
 name = "rust-runner"
 version = "0.1.0"
 edition = "2021"
+build = "build.rs"
+
+[features]
+day_25 = []
 
 [dependencies]
 paste = "1.0.0"

rust-runner/bench_part2.rs

@@ -3,9 +3,11 @@ use rust_runner::{check_result, Output};
 use std::hint::black_box;
 
 paste::paste! {
+    #[cfg(not(day_25))]
     use solution::[<day env!("DAY_NUMBER")>]::{part2};
 }
 
+#[cfg(not(day_25))]
 fn bench_part2(c: &mut Criterion) {
     let mut g = c.benchmark_group(concat!("day", env!("DAY_NUMBER")));
     let input = include_str!("./input.txt");
@@ -19,5 +21,12 @@ fn bench_part2(c: &mut Criterion) {
     check_result(output, expected, 2);
 }
 
+#[cfg(day_25)]
+fn bench_part2(c: &mut Criterion) {
+    let mut g = c.benchmark_group(concat!("day", env!("DAY_NUMBER")));
+    g.bench_function("part2", |b| b.iter(|| {}));
+}
+
+
 criterion_group!(benches, bench_part2);
 criterion_main!(benches);

rust-runner/build.rs

@@ -0,0 +1,9 @@
+use std::env;
+
+fn main() {
+    if let Ok(day_number) = env::var("DAY_NUMBER") {
+        if day_number == "25" {
+            println!("cargo:rustc-cfg=day_25");
+        }
+    }
+}

rust-runner/rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly"

rust-runner/test_build.rs

@@ -2,7 +2,11 @@
 use rust_runner::check_result;
 
 paste::paste! {
+    #[cfg(not(day_25))]
     use solution::[<day env!("DAY_NUMBER")>]::{part1, part2};
+
+    #[cfg(day_25)]
+    use solution::[<day env!("DAY_NUMBER")>]::part1;
 }
 
 #[test]
@@ -13,6 +17,7 @@ fn test_build_part_1() {
     check_result(output, expected, 1);
 }
 
+#[cfg(not(day_25))]
 #[test]
 fn test_build_part_2() {
     let input = "PLACEHOLDER";