ci : extract windows jobs to build-windows.yml

Author: danbev

.github/workflows/build-windows.yml

@@ -0,0 +1,76 @@
+name: CI (windows)
+
+on:
+  workflow_dispatch: # allows manual triggering
+  push:
+    branches:
+      - master
+    paths: ['.github/workflows/build-windows.yml',
+            '**/CMakeLists.txt',
+            '**/Makefile',
+            '**/*.mk',
+            '**/*.cmake',
+            '**/*.in',
+            '**/*.h',
+            '**/*.hpp',
+            '**/*.c',
+            '**/*.cpp',
+            '**/*.cu',
+            '**/*.cuh',
+            '**/*.cl']
+
+  pull_request:
+    types: [opened, synchronize, reopened]
+    paths-ignore:
+      - 'bindings/ruby/**'        # handled by bindings-ruby.yml
+      - 'bindings/go/**'          # handled by bindings-go.yml
+      - 'examples/addon.node/**'  # handled by examples.yml
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  windows-msys2:
+    runs-on: windows-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { sys: UCRT64,  env: ucrt-x86_64,  build: Release }
+          - { sys: CLANG64, env: clang-x86_64, build: Release }
+
+    steps:
+      - name: Clone
+        uses: actions/checkout@v6
+
+      - name: Setup ${{ matrix.sys }}
+        uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          msystem: ${{matrix.sys}}
+          install: >-
+            base-devel
+            git
+            mingw-w64-${{matrix.env}}-toolchain
+            mingw-w64-${{matrix.env}}-cmake
+            mingw-w64-${{matrix.env}}-SDL2
+            mingw-w64-${{matrix.env}}-openblas
+
+      - name: Build using CMake
+        shell: msys2 {0}
+        run: |
+            cmake -B build -DWHISPER_SDL2=ON
+            cmake --build build --config ${{ matrix.build }} -j $(nproc)
+
+      - name: Clean after building using CMake
+        shell: msys2 {0}
+        run: |
+            rm -rf build
+
+      - name: Build using CMake w/ OpenBLAS
+        shell: msys2 {0}
+        run: |
+            cmake -B build -DGGML_BLAS=ON -DGGML_BLAS_VENDOR=OpenBLAS
+            cmake --build build --config ${{ matrix.build }} -j $(nproc)

.github/workflows/build.yml

@@ -39,6 +39,7 @@ on:
       - '.github/workflows/build-gcc.yml'       # handled by build-gcc.yml
       - '.github/workflows/build-clang.yml'     # handled by build-clang.yml
       - '.github/workflows/build-sycl.yml'      # handled by build-sycl.yml
+      - '.github/workflows/build-windows.yml'   # handled by build-windows.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
@@ -67,50 +68,6 @@ jobs:
 #            cmake -B build
 #            cmake --build build --config Release
 
-  windows-msys2:
-    runs-on: windows-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { sys: UCRT64,  env: ucrt-x86_64,  build: Release }
-          - { sys: CLANG64, env: clang-x86_64, build: Release }
-
-    steps:
-      - name: Clone
-        uses: actions/checkout@v6
-
-      - name: Setup ${{ matrix.sys }}
-        uses: msys2/setup-msys2@v2
-        with:
-          update: true
-          msystem: ${{matrix.sys}}
-          install: >-
-            base-devel
-            git
-            mingw-w64-${{matrix.env}}-toolchain
-            mingw-w64-${{matrix.env}}-cmake
-            mingw-w64-${{matrix.env}}-SDL2
-            mingw-w64-${{matrix.env}}-openblas
-
-      - name: Build using CMake
-        shell: msys2 {0}
-        run: |
-            cmake -B build -DWHISPER_SDL2=ON
-            cmake --build build --config ${{ matrix.build }} -j $(nproc)
-
-      - name: Clean after building using CMake
-        shell: msys2 {0}
-        run: |
-            rm -rf build
-
-      - name: Build using CMake w/ OpenBLAS
-        shell: msys2 {0}
-        run: |
-            cmake -B build -DGGML_BLAS=ON -DGGML_BLAS_VENDOR=OpenBLAS
-            cmake --build build --config ${{ matrix.build }} -j $(nproc)
-
   emscripten:
     runs-on: ubuntu-22.04