name: CI

on:
  pull_request:
    branches:
      - main
  push:
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

# Cancel any currently running workflows from the same PR, branch, or
# tag when a new workflow is triggered.
#
# https://stackoverflow.com/a/66336834
concurrency:
  cancel-in-progress: true
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}

jobs:
  # --------------------------------------------------------------------------
  # Check

  esp32-hal:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: esp-rs/xtensa-toolchain@v1.4
        with:
          default: true
          buildtargets: esp32
          ldproxy: false
      - uses: Swatinem/rust-cache@v1

      # Perform a full build initially to verify that the examples not only
      # build, but also link successfully.
      - name: build esp32-hal (no features)
        run: cd esp32-hal/ && cargo build --examples
      # Subsequent steps can just check the examples instead, as we're already
      # confident that they link.
      - name: check esp32-hal (common features)
        run: cd esp32-hal/ && cargo check --examples --features=eh1,smartled,ufmt
      - name: check esp32-hal (async)
        run: cd esp32-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-timg0

  esp32c2-hal:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          target: riscv32imc-unknown-none-elf
          toolchain: nightly
          default: true
          components: rust-src
      - uses: Swatinem/rust-cache@v1

      # Perform a full build initially to verify that the examples not only
      # build, but also link successfully.
      # We also use this as an opportunity to verify that the examples link
      # for each supported image format.
      - name: build esp32c2-hal (no features)
        run: cd esp32c2-hal/ && cargo build --examples
      - name: build esp32c2-hal (direct-boot)
        run: cd esp32c2-hal/ && cargo build --examples --features=direct-boot
      # Subsequent steps can just check the examples instead, as we're already
      # confident that they link.
      - name: check esp32c2-hal (common features)
        run: cd esp32c2-hal/ && cargo check --examples --features=eh1,ufmt
      - name: check esp32c2-hal (async, systick)
        run: cd esp32c2-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-systick
      - name: check esp32c2-hal (async, timg0)
        run: cd esp32c2-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-timg0

  esp32c3-hal:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          target: riscv32imc-unknown-none-elf
          toolchain: nightly
          default: true
          components: rust-src
      - uses: Swatinem/rust-cache@v1

      # Perform a full build initially to verify that the examples not only
      # build, but also link successfully.
      # We also use this as an opportunity to verify that the examples link
      # for each supported image format.
      - name: build esp32c3-hal (no features)
        run: cd esp32c3-hal/ && cargo build --examples
      - name: build esp32c3-hal (direct-boot)
        run: cd esp32c3-hal/ && cargo build --examples --features=direct-boot
      # FIXME: Building using the mcu-boot format currently results in an error.
      # - name: build esp32c3-hal (mcu-boot)
      #   run: cd esp32c3-hal/ && cargo build --examples --features=mcu-boot
      # Subsequent steps can just check the examples instead, as we're already
      # confident that they link.
      - name: check esp32c3-hal (common features)
        run: cargo check --manifest-path=esp32c3-hal/Cargo.toml --target=riscv32imc-unknown-none-elf --examples --features=eh1,smartled,ufmt
      - name: check esp32c3-hal (async, systick)
        run: cargo check --manifest-path=esp32c3-hal/Cargo.toml --target=riscv32imc-unknown-none-elf --example=embassy_hello_world --features=embassy,embassy-time-systick
      - name: check esp32c3-hal (async, timg0)
        run: cargo check --manifest-path=esp32c3-hal/Cargo.toml --target=riscv32imc-unknown-none-elf --example=embassy_hello_world --features=embassy,embassy-time-timg0

  esp32s2-hal:
    runs-on: ubuntu-latest

    env:
      RUSTFLAGS: '--cfg target_has_atomic="8" --cfg target_has_atomic="16" --cfg target_has_atomic="32" --cfg target_has_atomic="ptr"'

    steps:
      - uses: actions/checkout@v2
      - uses: esp-rs/xtensa-toolchain@v1.4
        with:
          default: true
          buildtargets: esp32s2
          ldproxy: false
      - uses: Swatinem/rust-cache@v1

      # Perform a full build initially to verify that the examples not only
      # build, but also link successfully.
      - name: check esp32s2-hal (no features)
        run: cd esp32s2-hal/ && cargo build --examples
      # Subsequent steps can just check the examples instead, as we're already
      # confident that they link.
      - name: check esp32s2-hal (common features)
        run: cd esp32s2-hal/ && cargo check --examples --features=eh1,smartled,ufmt
      # FIXME: `time-systick` feature disabled for now, see 'esp32s2-hal/Cargo.toml'.
      # - name: check esp32s2-hal (async, systick)
      #   run: cd esp32s2-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-systick
      - name: check esp32s2-hal (async, timg0)
        run: cd esp32s2-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-timg0

  esp32s3-hal:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: esp-rs/xtensa-toolchain@v1.4
        with:
          default: true
          buildtargets: esp32s3
          ldproxy: false
      - uses: Swatinem/rust-cache@v1

      # Perform a full build initially to verify that the examples not only
      # build, but also link successfully.
      # We also use this as an opportunity to verify that the examples link
      # for each supported image format.
      - name: build esp32s3-hal (no features)
        run: cd esp32s3-hal/ && cargo build --examples
      - name: build esp32s3-hal (direct-boot)
        run: cd esp32s3-hal/ && cargo build --examples --features=direct-boot
      # Subsequent steps can just check the examples instead, as we're already
      # confident that they link.
      - name: check esp32s3-hal (common features)
        run: cd esp32s3-hal/ && cargo check --examples --features=eh1,smartled,ufmt
      - name: check esp32s3-hal (async, systick)
        run: cd esp32s3-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-systick
      - name: check esp32s3-hal (async, timg0)
        run: cd esp32s3-hal/ && cargo check --example=embassy_hello_world --features=embassy,embassy-time-timg0

  # --------------------------------------------------------------------------
  # MSRV

  msrv-riscv:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          target: riscv32imc-unknown-none-elf
          toolchain: "1.65.0"
          default: true
      - uses: Swatinem/rust-cache@v1

      # Verify the MSRV for all RISC-V chips.
      - name: msrv (esp32c2-hal)
        run: cd esp32c2-hal/ && cargo check --features=eh1,ufmt
      - name: msrv (esp32c3-hal)
        run: cd esp32c3-hal/ && cargo check --features=eh1,ufmt,smartled

  msrv-xtensa:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: esp-rs/xtensa-toolchain@v1.4
        with:
          ldproxy: false
          version: "1.65.0"
      - uses: Swatinem/rust-cache@v1

      # Verify the MSRV for all Xtensa chips.
      - name: msrv (esp32-hal)
        run: cd esp32-hal/ && cargo check --features=eh1,ufmt,smartled
      - name: msrv (esp32s2-hal)
        run: cd esp32s2-hal/ && cargo check --features=eh1,ufmt,smartled
      - name: msrv (esp32s3-hal)
        run: cd esp32s3-hal/ && cargo check --features=eh1,ufmt,smartled

  # --------------------------------------------------------------------------
  # Lint

  clippy-riscv:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          components: clippy
      - uses: Swatinem/rust-cache@v1

      # Run clippy on all packages targeting RISC-V.
      - name: clippy (esp32c2-hal)
        run: cargo +stable clippy --manifest-path=esp32c2-hal/Cargo.toml -- --no-deps
      - name: clippy (esp32c3-hal)
        run: cargo +stable clippy --manifest-path=esp32c3-hal/Cargo.toml -- --no-deps

  clippy-xtensa:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: esp-rs/xtensa-toolchain@v1.4
        with:
          ldproxy: false
      - uses: Swatinem/rust-cache@v1

      # Run clippy on all packages targeting Xtensa.
      #
      # The ESP32-S2 requires some additional information in order for the
      # atomic emulation crate to build.
      - name: clippy (esp32-hal)
        run: cargo +esp clippy --manifest-path=esp32-hal/Cargo.toml -- --no-deps
      - name: clippy (esp32s2-hal)
        run: cargo +esp clippy --manifest-path=esp32s2-hal/Cargo.toml --target=xtensa-esp32s2-none-elf -Zbuild-std=core -- --no-deps
      - name: clippy (esp32s3-hal)
        run: cargo +esp clippy --manifest-path=esp32s3-hal/Cargo.toml -- --no-deps

  rustfmt:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      # Some of the items in 'rustfmt.toml' require the nightly release
      # channel, so we must use this channel for the formatting checks
      # to succeed.
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          components: rustfmt
          default: true

      - uses: Swatinem/rust-cache@v1

      # Check the formatting of all packages.
      - name: rustfmt (esp-hal-common)
        run: cargo fmt --all --manifest-path=esp-hal-common/Cargo.toml -- --check
      - name: rustfmt (esp-hal-procmacros)
        run: cargo fmt --all --manifest-path=esp-hal-procmacros/Cargo.toml -- --check
      - name: rustfmt (esp32-hal)
        run: cargo fmt --all --manifest-path=esp32-hal/Cargo.toml -- --check
      - name: rustfmt (esp32c2-hal)
        run: cargo fmt --all --manifest-path=esp32c2-hal/Cargo.toml -- --check
      - name: rustfmt (esp32c3-hal)
        run: cargo fmt --all --manifest-path=esp32c3-hal/Cargo.toml -- --check
      - name: rustfmt (esp32s2-hal)
        run: cargo fmt --all --manifest-path=esp32s2-hal/Cargo.toml -- --check
      - name: rustfmt (esp32s3-hal)
        run: cargo fmt --all --manifest-path=esp32s3-hal/Cargo.toml -- --check