ci: Build prqlc-clib as artifacts

.github/actions/build-prqlc-clib/action.yaml

@@ -0,0 +1,97 @@
+name: build-prqlc-clib
+description: >
+  A version of `build-prqlc` for the C bindings.
+
+  Note that this is quite open to change, including names and which files we
+  package. Contributions and/or suggestions are welcome.
+
+inputs:
+  target:
+    description: Build target
+    required: true
+  profile:
+    description: Build profile option; `dev` or `release`.
+    required: true
+  features:
+    description: Features to enable
+    default: ""
+outputs:
+  artifact-name:
+    description: The name of the artifact
+    value: ${{ steps.echo-artifact-name.outputs.artifact-name }}
+
+runs:
+  using: composite
+  steps:
+    - run: rustup target add ${{ inputs.target }}
+      shell: bash
+
+    - run: ./.github/workflows/scripts/set_version.sh
+      shell: bash
+
+    - uses: Swatinem/rust-cache@v2
+      with:
+        # Share cache with `test-rust`, except for `musl` targets.
+        save-if:
+          ${{ (github.ref == 'refs/heads/main') && contains(inputs.target,
+          'musl') }}
+        shared-key: rust-${{ inputs.target }}
+        prefix-key: ${{ env.version }}
+
+    - if: runner.os == 'Linux'
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y musl-tools
+
+    - if: runner.os == 'Windows' && inputs.profile == 'release'
+      shell: bash
+      run: |
+        echo 'RUSTFLAGS=-Ctarget-feature=+crt-static' >>"$GITHUB_ENV"
+
+    - if: inputs.target == 'aarch64-unknown-linux-musl'
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y gcc-aarch64-linux-gnu
+        echo 'CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=aarch64-linux-gnu-gcc' >>"$GITHUB_ENV"
+        echo 'CC=aarch64-linux-gnu-gcc' >>"$GITHUB_ENV"
+
+    - name: cargo build
+      uses: richb-hanover/cargo@v1.1.0
+      with:
+        command: build
+        args:
+          --profile=${{ inputs.profile }} --locked --target=${{ inputs.target }}
+          --features=${{ inputs.features }} ${{ contains(inputs.target, 'musl')
+          && '--package=prqlc-clib' || '--all-targets' }}
+
+    - name: Create artifact for Linux and macOS
+      shell: bash
+      if: runner.os != 'Windows'
+      run: |
+        export ARTIFACT_NAME="prqlc_lib-v${{ github.ref_type == 'tag' && github.ref_name || 0 }}-${{ matrix.target }}.tar.gz"
+        echo "ARTIFACT_NAME=${ARTIFACT_NAME}" >>"$GITHUB_ENV"
+        cd target/${{ matrix.target }}/${{ inputs.profile == 'release' && 'release' || 'debug' }}
+        ls -al
+        tar czf "../../../${ARTIFACT_NAME}" *prqlc_lib*
+
+    - name: Create artifact for Windows
+      shell: bash
+      if: runner.os == 'Windows'
+      run: |
+        export ARTIFACT_NAME="prqlc_lib-v${{ github.ref_type == 'tag' && github.ref_name || 0 }}-${{ matrix.target }}.zip"
+        echo "ARTIFACT_NAME=${ARTIFACT_NAME}" >>"$GITHUB_ENV"
+        cd target/${{ matrix.target }}/${{ inputs.profile == 'release' && 'release' || 'debug' }}
+        ls -al
+        7z a "../../../${ARTIFACT_NAME}" *prqlc_lib*
+
+    - name: Upload prqlc-clib
+      uses: actions/upload-artifact@v3
+      with:
+        name: prqlc_lib-${{ inputs.target }}
+        path: ${{ env.ARTIFACT_NAME }}
+
+    - id: echo-artifact-name
+      shell: bash
+      run: echo "artifact-name=${{ env.ARTIFACT_NAME }}" >>"$GITHUB_OUTPUT"

.github/actions/build-prqlc/action.yaml

@@ -1,6 +1,9 @@
 name: build-prqlc
 description: >
   Build prqlc
+
+  Note that much of this is copy/pasted into build-prqlc-clib, so changes here
+  should generally be copied into that file.
 inputs:
   target:
     description: Build target

.github/workflows/tests.yaml

@@ -638,6 +638,40 @@ jobs:
       RUSTFLAGS: "-C debuginfo=0"
       RUSTDOCFLAGS: "-Dwarnings"
 
+  build-prqlc-clib:
+    runs-on: ${{ matrix.os }}
+    needs: rules
+    if: needs.rules.outputs.rust == 'true' || needs.rules.outputs.main == 'true'
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Match the features with the available caches from tests
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-musl
+            features: default
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            features: default,test-dbs
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+            features: default
+    steps:
+      - name: 📂 Checkout code
+        uses: actions/checkout@v4
+      - uses: ./.github/actions/build-prqlc-clib
+        with:
+          target: ${{ matrix.target }}
+          profile: dev
+          features: ${{ matrix.features }}
+    # These are the same env variables as in `test-rust.yaml`. Custom actions
+    # don't allow setting env variables for the whole job, so we do it here.
+    env:
+      CARGO_TERM_COLOR: always
+      CLICOLOR_FORCE: 1
+      RUSTFLAGS: "-C debuginfo=0"
+      RUSTDOCFLAGS: "-Dwarnings"
+
   create-issue-on-nightly-failure:
     runs-on: ubuntu-latest
     needs:

prqlc/bindings/clib/Cargo.toml

@@ -8,8 +8,13 @@ repository.workspace = true
 rust-version.workspace = true
 version.workspace = true
 
+# This means we can build with `--features=default`, which can make builds more generic
+[features]
+default = []
+
 [lib]
 crate_type = ["staticlib", "cdylib"]
+# crate_type = ["cdylib"]
 doctest = false
 name = "prqlc_lib"
 test = false