ci: add CI... :)

.github/workflows/ci.yaml

@@ -0,0 +1,72 @@
+name: pisserror CI
+
+on:
+  push:
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  run_checks:
+    name: pisserror
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+          - nightly
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ matrix.toolchain }}
+
+      - name: Cache cargo registry
+        uses: actions/cache@v3
+        with:
+          path: ~/.cargo/registry
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo index
+        uses: actions/cache@v3
+        with:
+          path: ~/.cargo/git
+          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo build
+        uses: actions/cache@v3
+        with:
+          path: target
+          key: ${{ runner.os }}-cargo-build-target-${{ matrix.toolchain }}-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo bin
+        uses: actions/cache@v3
+        with:
+          path: ~/.cargo/bin
+          key: ${{ runner.os }}-cargo-bin-${{ hashFiles('**/Cargo.lock') }}
+
+      - uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-deny,cargo-all-features,cargo-semver-checks
+
+      - name: Check semantic versioning adherence # note: this should always work. it's got one line of code...
+        run: cargo semver-checks
+
+      - name: Build
+        run: cargo build --verbose
+
+      - name: Test `pisserror` crate
+        run: cargo test-all-features
+
+      - name: Test `macros` crate
+        run: cargo test-all-features macros/
+
+      - name: Run cargo-deny
+        run: cargo deny check
+
+

deny.toml

@@ -0,0 +1,6 @@
+[licenses]
+allow = ["MIT", "Apache-2.0", "Unicode-DFS-2016"]
+
+[bans]
+# disable duplicate crates
+multiple-versions = "deny"

macros/Cargo.toml

@@ -2,6 +2,7 @@
 name = "macros"
 version = "0.1.0"
 edition = "2021"
+license-file = "../LICENSE"
 
 [lib]
 proc-macro = true