From a0911a64adc8164fa1df349ab25510fb7d731bc5 Mon Sep 17 00:00:00 2001
From: Ricardo Abreu <ricab@ricabhome.org>
Date: Wed, 7 Jan 2026 02:48:13 +0000
Subject: [PATCH 1/4] [ci] Add a couple of Windows jobs to GHA

---
 .github/workflows/test.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5f26d53..f370349 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -54,6 +54,11 @@ jobs:
           # AppleClang on macOS
           - os: macos-15
             comp: AppleClang # default compiler, unused var to show in GH UI
+          # MSVC on Windows
+          - os: windows-2019
+            comp: MSVC # Visual Studio 2019 ATTOW
+          - os: windows-2025
+            comp: MSVC # Visual Studio 2022 ATTOW
 
     runs-on: ${{matrix.os}}
     steps:

From 1ba1a4fdc590a91d22550cbe82b221351c4b73ee Mon Sep 17 00:00:00 2001
From: Ricardo Abreu <ricab@ricabhome.org>
Date: Wed, 7 Jan 2026 03:02:08 +0000
Subject: [PATCH 2/4] [ci] Determine the number of cpus on windows

---
 .github/workflows/test.yml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f370349..26ce0f5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -74,12 +74,15 @@ jobs:
 
     - name: Determine number of cpus on Linux
       if: startsWith(matrix.os, 'ubuntu')
-      run: echo "num_cpus=$(nproc)" >> $GITHUB_ENV # TODO use set-output instead
+      run: echo "num_cpus=$(nproc)" >> $GITHUB_ENV
 
     - name: Determine number of cpus on macOS
       if: startsWith(matrix.os, 'macos')
-      run: echo "num_cpus=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV # TODO use set-output instead
+      run: echo "num_cpus=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV
 
+    - name: Determine number of cpus on Windows
+      if: startsWith(matrix.os, 'windows')
+      run: echo "num_cpus=$env:NUMBER_OF_PROCESSORS" >> $env:GITHUB_ENV
     - name: Determine compiler flag
       if: ${{matrix.compiler}}
       run: echo "CXX=${{matrix.compiler}}" >> $GITHUB_ENV

From bf3c13f6e019b306a1c6efc2c93f343bef1598ab Mon Sep 17 00:00:00 2001
From: Ricardo Abreu <ricab@ricabhome.org>
Date: Wed, 7 Jan 2026 03:03:38 +0000
Subject: [PATCH 3/4] [ci] Use generic syntax for var expansion

---
 .github/workflows/test.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 26ce0f5..793c0f8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -88,12 +88,12 @@ jobs:
       run: echo "CXX=${{matrix.compiler}}" >> $GITHUB_ENV
 
     - name: Configure CMake
-      run: cmake -Wdev -Werror=dev -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
+      run: cmake -Wdev -Werror=dev -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
           ${{matrix.extra_build_flags}}
 
     - name: Build
       working-directory: ${{github.workspace}}/build
-      run: cmake --build . --config ${BUILD_TYPE} --parallel ${num_cpus}
+      run: cmake --build . --config ${{env.BUILD_TYPE}} --parallel ${{env.num_cpus}}
 
     - name: Test
       working-directory: ${{github.workspace}}/build

From ba3a0e392c2d3278e2e199e691521d39ee4f9f82 Mon Sep 17 00:00:00 2001
From: Ricardo Abreu <ricab@ricabhome.org>
Date: Wed, 7 Jan 2026 04:05:37 +0000
Subject: [PATCH 4/4] [ci] Adapt compilation tests to support Windows

---
 .github/workflows/test.yml | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 793c0f8..441fc05 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -83,6 +83,17 @@ jobs:
     - name: Determine number of cpus on Windows
       if: startsWith(matrix.os, 'windows')
       run: echo "num_cpus=$env:NUMBER_OF_PROCESSORS" >> $env:GITHUB_ENV
+
+    - name: Determine number of compilation test jobs on macOS and Linux
+      if: ${{ !startsWith(matrix.os, 'windows') }}
+      shell: bash
+      run: echo "num_comp_tests=$((${{env.num_cpus}} * 2))" >> $GITHUB_ENV
+
+    - name: Determine number of compilation test jobs on Windows
+      if: startsWith(matrix.os, 'windows')
+      shell: bash
+      run: echo "num_comp_tests=1" >> $GITHUB_ENV
+
     - name: Determine compiler flag
       if: ${{matrix.compiler}}
       run: echo "CXX=${{matrix.compiler}}" >> $GITHUB_ENV
@@ -97,10 +108,8 @@ jobs:
 
     - name: Test
       working-directory: ${{github.workspace}}/build
-      run: cmake --build . --config ${BUILD_TYPE} --target test
-        ARGS=-j$((${num_cpus} * 2)) # don't pass --parallel, which would affect compilation tests,
-                                    # but do run twice as many compilation tests as the number of
-                                    # available threads
+      run: cmake --build . --config ${{env.BUILD_TYPE}} --target test
+        ARGS=-j${{env.num_comp_tests}} # don't pass --parallel, which would affect compilation tests
 
     - name: Produce coverage reports
       if: contains(matrix.extra_build_flags, 'coverage')