ci/github: add lint workflow

.github/workflows/lint.yaml

@@ -0,0 +1,152 @@
+
+name: "Linting"
+
+on:
+  pull_request:
+  workflow_dispatch:
+  # Need to run it on master redundantly, or caches don't work
+  push:
+    branches: ["master"]
+
+env:
+  RUST_BACKTRACE: full
+  CARGO_INCREMENTAL: 0
+  YARY_COLOR: 0
+
+jobs:
+  lint:
+    name: "[${{ matrix.os }}/${{ matrix.rust }}] ${{ matrix.just.name }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        rust:
+          - stable
+          - 1.53
+        just:
+          - name: "Lint"
+            recipe: lint
+            vars: ""
+    steps:
+      # Checkout code
+      - name: "Git checkout"
+        uses: actions/checkout@v2
+
+      # Install Rust toolchain
+      - name: "Install Rust ${{ matrix.rust }}"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          profile: minimal
+          default: true
+          components: rustfmt,clippy
+
+      - name: "Install Rust rustfmt (nightly)"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          profile: minimal
+          default: false
+          components: rustfmt
+
+      - name: "Install Just"
+        uses: extractions/setup-just@v1
+        with:
+          just-version: 1
+
+      - name: "Save Cargo cache"
+        uses: Swatinem/rust-cache@v1
+
+      - name: "Task ${{ matrix.just.name }}"
+        run: just ${{ matrix.just.vars }} ${{ matrix.just.recipe }}
+
+  doclint:
+    name: "[${{ matrix.os }}/${{ matrix.rust }}] ${{ matrix.just.name }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        rust:
+          - nightly
+        just:
+          - name: "Doc Lint"
+            recipe: lint-docs
+            vars: ""
+    steps:
+      # Checkout code
+      - name: "Git checkout"
+        uses: actions/checkout@v2
+
+      # Install Rust toolchain
+      - name: "Install Rust ${{ matrix.rust }}"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          profile: minimal
+          default: true
+          components: rustfmt
+
+      # Install recipe runner
+      - name: "Install Just"
+        uses: extractions/setup-just@v1
+        with:
+          just-version: 1
+
+      # Save cache
+      - name: "Save Cargo cache"
+        uses: Swatinem/rust-cache@v1
+        with:
+          sharedKey: docs
+
+      # Run tasks
+      - name: "Task ${{ matrix.just.name }}"
+        run: just ${{ matrix.just.vars }} ${{ matrix.just.recipe }}
+
+  audit:
+    name: "[${{ matrix.os }}/${{ matrix.rust }}] ${{ matrix.just.name }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        rust:
+          - nightly
+        just:
+          - name: "Unused Deps"
+            recipe: udeps
+            vars: ""
+          - name: "Audit Deps"
+            recipe: audit
+            vars: ""
+    steps:
+      # Checkout code
+      - name: "Git checkout"
+        uses: actions/checkout@v2
+
+      # Install Rust toolchain
+      - name: "Install Rust ${{ matrix.rust }}"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          profile: minimal
+          default: true
+          components: rustfmt
+
+      # Install recipe runner
+      - name: "Install Just"
+        uses: extractions/setup-just@v1
+        with:
+          just-version: 1
+
+      # Save cache
+      - name: "Save Cargo cache"
+        uses: Swatinem/rust-cache@v1
+
+      # Run tasks
+      - name: "Task ${{ matrix.just.name }}"
+        run: just ${{ matrix.just.vars }} ${{ matrix.just.recipe }}