Run CI on MSYS2 (#1725)

See: sourcemeta/blaze#448
Signed-off-by: Juan Cruz Viotti <jv@jviotti.com>

Author: jviotti

.github/workflows/ci.yml

@@ -21,59 +21,74 @@ jobs:
             type: static
             shell: sh
             benchmark: macos/llvm
+            format: true
           - os: macos-latest
             cc: clang
             cxx: clang++
             type: shared
             shell: sh
+            format: true
           - os: macos-latest
             cc: gcc-13
             cxx: g++-13
             type: static
             shell: sh
+            format: true
             benchmark: macos/gcc
           - os: ubuntu-latest
             cc: clang
             cxx: clang++
             type: static
             shell: sh
+            format: true
             benchmark: linux/llvm
           - os: ubuntu-latest
             cc: gcc
             cxx: g++
             type: static
             shell: sh
+            format: true
             benchmark: linux/gcc
           - os: ubuntu-latest
             cc: clang
             cxx: clang++
             type: shared
             shell: sh
+            format: true
           - os: ubuntu-latest
             cc: gcc
             cxx: g++
             type: shared
             shell: sh
+            format: true
           - os: windows-latest
             type: static
             shell: pwsh
+            format: true
             benchmark: windows/msvc
           - os: windows-latest
             type: shared
             shell: pwsh
+            format: true
+          - os: windows-latest
+            type: static
+            shell: msys2 {0}
+            format: false
 
           # Sanitizers
           - os: ubuntu-latest
             cc: clang
             cxx: clang++
             type: static
             shell: sh
+            format: false
             options: -DSOURCEMETA_CORE_ADDRESS_SANITIZER:BOOL=ON
           - os: ubuntu-latest
             cc: clang
             cxx: clang++
             type: static
             shell: sh
+            format: false
             options: -DSOURCEMETA_CORE_UNDEFINED_SANITIZER:BOOL=ON
 
     defaults:
@@ -85,8 +100,11 @@ jobs:
       CC: ${{ matrix.platform.cc }}
       CXX: ${{ matrix.platform.cxx }}
     steps:
-      - name: Install ClangFormat
-        run: pipx install clang-format==19.1.0
+      - name: Install dependencies (MSYS2)
+        uses: msys2/setup-msys2@v2
+        if: matrix.platform.shell == 'msys2 {0}'
+        with:
+          install: cmake make gcc
 
       - uses: actions/checkout@v4
       - name: Install dependencies (macOS)
@@ -95,6 +113,11 @@ jobs:
         env:
           HOMEBREW_NO_ANALYTICS: 1
           HOMEBREW_NO_AUTO_UPDATE: 1
+
+      - name: Install ClangFormat
+        run: pipx install clang-format==19.1.0 --verbose
+        if: matrix.platform.format
+
       - run: cmake --version
       - name: Configure (static)
         if: matrix.platform.type == 'static'
@@ -119,6 +142,7 @@ jobs:
           -DCMAKE_COMPILE_WARNING_AS_ERROR:BOOL=ON
           ${{ matrix.platform.options }}
       - run: cmake --build ./build --config Release --target clang_format_test
+        if: matrix.platform.format
       - run: cmake --build ./build --config Release --parallel 4
       - run: >
           cmake --install ./build --prefix ./build/dist --config Release --verbose

test/json/jsontestsuite.cc

@@ -25,6 +25,8 @@ class JSONTest : public testing::Test {
       // certain test cases.
       while (stream.peek() != std::char_traits<char>::eof()) {
         switch (stream.get()) {
+          case '\r':
+          case '\t':
           case '\n':
           case ' ':
             break;