Add GitHub Actions CI configuration

Author: teskje

.github/workflows/ci.yml

@@ -0,0 +1,83 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        mcu:
+          - stm32f301
+          - stm32f318
+          - stm32f302xb
+          - stm32f302xc
+          - stm32f302xd
+          - stm32f302xe
+          - stm32f303xb
+          - stm32f303xc
+          - stm32f303xd
+          - stm32f303xe
+          - stm32f303x6
+          - stm32f303x8
+          - stm32f373
+          - stm32f378
+          - stm32f334
+          - stm32f328
+          - stm32f358
+          - stm32f398
+        features: ["rt"]
+        include:
+          - mcu: stm32f303xc
+            features: rt,stm32-usbd
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: thumbv7em-none-eabihf
+          override: true
+          profile: minimal
+      - uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --features=${{ matrix.mcu }},${{ matrix.features }}
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          target: thumbv7em-none-eabihf
+          override: true
+          profile: minimal
+          components: clippy
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: >
+            --features=stm32f303xc,rt,stm32-usbd --examples
+            -- -D warnings
+
+  rustfmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          profile: minimal
+          components: rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

Cargo.toml

@@ -53,10 +53,13 @@ cortex-m-semihosting = "0.3"
 
 [features]
 default = ["unproven"]
+unproven = ["embedded-hal/unproven"]
 device-selected = []
 direct-call-deprecated = []
 rt = ["stm32f3/rt"]
-# Any Changes here should be mirrored in README.md and src/lib.rs
+
+# Any Changes here should be mirrored in README.md, src/lib.rs, and
+# .github/workflows/ci.yml.
 stm32f301 = ["stm32f3/stm32f301", "device-selected"]
 stm32f318 = ["stm32f3/stm32f301", "device-selected"]
 stm32f302 = ["stm32f3/stm32f302", "direct-call-deprecated"]
@@ -77,7 +80,6 @@ stm32f334 = ["stm32f3/stm32f3x4", "device-selected"]
 stm32f328 = ["stm32f3/stm32f3x8", "device-selected"]
 stm32f358 = ["stm32f3/stm32f3x8", "device-selected"]
 stm32f398 = ["stm32f3/stm32f3x8", "device-selected"]
-unproven = ["embedded-hal/unproven"]
 
 [profile.dev]
 debug = true