From 34ef1157a65987d53a18a32dbdd04046c263f7e5 Mon Sep 17 00:00:00 2001
From: WillLillis <wlillis@umass.edu>
Date: Mon, 20 Jan 2025 21:56:00 -0500
Subject: [PATCH] feat(ci): build libraries on windows x64 with mingw

---
 .github/workflows/build.yml | 56 +++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2b39e329..3381196a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -139,6 +139,62 @@ jobs:
           [[ -n $runner ]] && printf 'CROSS_RUNNER=%s\n' "$runner" >> $GITHUB_ENV
         fi
 
+    # TODO: Remove RUSTFLAGS="--cap-lints allow" once we use a wasmtime release that addresses
+    # the `mismatched-lifetime-syntaxes` lint
+    - name: Build wasmtime library (Windows x64 MSYS2)
+      if: ${{ !matrix.use-cross && contains(matrix.features, 'wasm') && matrix.platform == 'windows-x64' }}
+      run: |
+        mkdir -p target
+        WASMTIME_VERSION=$(cargo metadata --format-version=1 --locked --features wasm | \
+                           jq -r '.packages[] | select(.name == "wasmtime-c-api-impl") | .version')
+        curl -LSs "$WASMTIME_REPO/archive/refs/tags/v${WASMTIME_VERSION}.tar.gz" | tar xzf - -C target
+        cd target/wasmtime-${WASMTIME_VERSION}
+        cmake -S crates/c-api -B target/c-api \
+          -DCMAKE_INSTALL_PREFIX="$PWD/artifacts" \
+          -DWASMTIME_DISABLE_ALL_FEATURES=ON \
+          -DWASMTIME_FEATURE_CRANELIFT=ON \
+          -DWASMTIME_TARGET='x86_64-pc-windows-gnu'
+        cmake --build target/c-api && cmake --install target/c-api
+        printf 'CMAKE_PREFIX_PATH=%s\n' "$PWD/artifacts" >> $GITHUB_ENV
+      env:
+        WASMTIME_REPO: https://github.com/bytecodealliance/wasmtime
+        RUSTFLAGS: "--cap-lints allow"
+
+    - name: Install MinGW and Clang (Windows x64 MSYS2)
+      if: ${{ matrix.platform == 'windows-x64' }}
+      uses: msys2/setup-msys2@v2
+      with:
+        update: true
+        install: |
+          mingw-w64-x86_64-toolchain
+          mingw-w64-x86_64-clang
+          mingw-w64-x86_64-make
+          mingw-w64-x86_64-cmake
+
+    - name: Build C library (Windows x64 MSYS2 CMake)
+      if: ${{ matrix.platform == 'windows-x64' }}
+      shell: msys2 {0}
+      run: |
+        cmake -G Ninja -S lib -B build/static \
+          -DBUILD_SHARED_LIBS=OFF \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DCMAKE_COMPILE_WARNING_AS_ERROR=ON \
+          -DTREE_SITTER_FEATURE_WASM=$WASM \
+          -DCMAKE_C_COMPILER=clang
+        cmake --build build/static
+        rm -rf build/static
+
+        cmake -G Ninja -S lib -B build/shared \
+          -DBUILD_SHARED_LIBS=ON \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DCMAKE_COMPILE_WARNING_AS_ERROR=ON \
+          -DTREE_SITTER_FEATURE_WASM=$WASM \
+          -DCMAKE_C_COMPILER=clang
+        cmake --build build/shared
+        rm -rf build/shared
+      env:
+        WASM: ${{ contains(matrix.features, 'wasm') && 'ON' || 'OFF' }}
+
     # TODO: Remove RUSTFLAGS="--cap-lints allow" once we use a wasmtime release that addresses
     # the `mismatched-lifetime-syntaxes` lint
     - name: Build wasmtime library