Update deps, clean up stuffs, add CI, add license

.cargo/config_ci.toml

@@ -0,0 +1,70 @@
+# This config is used for the CI workflow.
+# Feel free to also use it locally for fast builds if you have the required setup!
+
+[unstable]
+codegen-backend = true
+
+[profile.dev]
+codegen-backend = "cranelift"
+
+# Consider using llvm for this setting if you use tests that `#[should_panic]`,
+# as cranelift only supports `panic = abort`.
+# Since Foxtrot does not use `#[should_panic]` so far, we can use cranelift for speed increases.
+[profile.dev.package."*"]
+codegen-backend = "cranelift"
+
+# Disable cranelift for release profile
+[profile.release]
+codegen-backend = "llvm"
+
+# cranelift cannot build wasm32-unknown-unknown out of the box
+[profile.web]
+codegen-backend = "llvm"
+
+[profile.web.package."*"]
+codegen-backend = "llvm"
+
+# Override the high opt-level from the dev profile for the test profile
+[profile.test.package."*"]
+opt-level = 1
+
+[target.wasm32-unknown-unknown]
+# Clang does not support wasm32-unknown-unknown,
+# so it's hard to use a better linker.
+# Note that Wasm already uses rust-lld by default.
+rustflags = [
+    "-Dwarnings",
+    "-Cdebuginfo=line-tables-only",
+    "--cfg",
+    "getrandom_backend=\"wasm_js\"",
+    # Nightly
+    "-Zshare-generics=y",
+    "-Zthreads=0",
+]
+rustdocflags = [
+    "-Dwarnings",
+    # Nightly
+    "-Zshare-generics=y",
+    "-Zthreads=0",
+]
+
+
+[target.x86_64-unknown-linux-gnu]
+linker = "clang"
+rustflags = [
+    "-Dwarnings",
+    "-Cdebuginfo=line-tables-only",
+    # Faster linker
+    "-Clink-arg=--ld-path=wild",
+    # Nightly
+    "-Zshare-generics=y",
+    "-Zthreads=0",
+]
+rustdocflags = [
+    "-Dwarnings",
+    # Faster linker
+    "-Clink-arg=--ld-path=wild",
+    # Nightly
+    "-Zshare-generics=y",
+    "-Zthreads=0",
+]

.github/workflows/ci.yml

@@ -0,0 +1,197 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  # Use the same Rust toolchain across jobs so they can share a cache.
+  toolchain: nightly-2026-01-22
+
+jobs:
+  # Run tests.
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          components: rustc-codegen-cranelift-preview
+          toolchain: ${{ env.toolchain }}
+
+      - name: Set LD_LIBRARY_PATH
+        id: ld_library_path
+        run: |
+          # Setting LD_LIBRARY_PATH is a workaround for <https://github.com/TheBevyFlock/bevy_new_2d/pull/318#issuecomment-2585935350>.
+          echo "LD_LIBRARY_PATH=$(rustc --print target-libdir)" >> $GITHUB_ENV
+
+      - name: Populate target directory from cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+          cache-directories: ${{ env.LD_LIBRARY_PATH }}
+
+      - name: Install dependencies
+        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev
+
+      - name: Active CI cargo config
+        run: mv .cargo/config_ci.toml .cargo/config.toml
+
+      - name: Install cargo binstall
+        uses: cargo-bins/cargo-binstall@main
+
+      - name: Install Wild
+        run: cargo binstall wild-linker --locked --force
+
+      - name: Install nextest
+        run: cargo binstall cargo-nextest --locked --force
+
+      - name: Run tests
+        run: cargo nextest run --locked --workspace --all-targets --no-fail-fast --no-tests warn
+
+      # Running doc tests separately is a workaround for <https://github.com/rust-lang/cargo/issues/6669>.
+      - name: Run doctests
+        run: cargo test --locked --workspace --doc
+
+  # Run clippy lints.
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          components: clippy, rustc-codegen-cranelift-preview
+          toolchain: ${{ env.toolchain }}
+
+      - name: Active CI cargo config
+        run: mv .cargo/config_ci.toml .cargo/config.toml
+
+      - name: Install cargo binstall
+        uses: cargo-bins/cargo-binstall@main
+
+      - name: Install Wild
+        run: cargo binstall wild-linker --locked --force
+
+      - name: Install dependencies
+        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev
+
+      - name: Populate target directory from cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          save-if: false
+          shared-key: lints
+
+      - name: Run clippy lints
+        run: cargo clippy --locked --workspace --all-targets -- --deny warnings
+
+  # Check formatting.
+  format:
+    name: Format
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          components: rustfmt
+          toolchain: ${{ env.toolchain }}
+
+      - name: Run cargo fmt
+        run: cargo fmt --all -- --check
+
+  # Check documentation.
+  doc:
+    name: Docs
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          components: rustc-codegen-cranelift-preview
+          toolchain: ${{ env.toolchain }}
+
+      - name: Active CI cargo config
+        run: mv .cargo/config_ci.toml .cargo/config.toml
+
+      - name: Install cargo binstall
+        uses: cargo-bins/cargo-binstall@main
+
+      - name: Install Wild
+        run: cargo binstall wild-linker --locked --force
+
+      - name: Install dependencies
+        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev
+
+      - name: Populate target directory from cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          save-if: false
+          shared-key: lints
+
+      - name: Check documentation
+        run: cargo doc --locked --workspace --document-private-items --no-deps
+
+  # Run Bevy lints.
+  bevy-lint:
+    name: Bevy linter
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          components: rustc-codegen-cranelift-preview, rustc-dev, llvm-tools-preview
+          toolchain: ${{ env.toolchain }}
+
+      - name: Install dependencies
+        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev
+
+      - name: Populate target directory from cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+          shared-key: lints
+
+      - name: Install Bevy linter
+        run: cargo install --git https://github.com/TheBevyFlock/bevy_cli --locked bevy_lint
+
+      - name: Add cranelift to rustc
+        run: rustup component add rustc-codegen-cranelift-preview --toolchain ${{ env.toolchain }}
+
+      - name: Active CI cargo config
+        run: mv .cargo/config_ci.toml .cargo/config.toml
+
+      - name: Install cargo binstall
+        uses: cargo-bins/cargo-binstall@main
+
+      - name: Install Wild
+        run: cargo binstall wild-linker --locked --force
+
+      - name: Run Bevy linter
+        run: bevy_lint --locked --workspace --all-targets