Add Windows

Author: hynek

.github/workflows/ci.yml

@@ -12,12 +12,12 @@ env:
 
 jobs:
   check-install:
-      runs-on: [ubuntu-latest, macos-latest]
-      steps:
-        - uses: actions/checkout@v4
-          with:
-            path: action
+    runs-on: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: action
 
-        - uses: ./action
+      - uses: ./action
 
-        - run: uv --version
+      - run: uv --version

action.yml

@@ -11,9 +11,15 @@ runs:
   using: composite
 
   steps:
-  - name: Install uv
+  - name: Install uv on Linux or macOS
     run: curl -LsSf https://astral.sh/uv/install.sh | bash
     shell: bash
+    if: runner.os != 'Windows'
+
+  - name: Install uv on Windows
+    run: irm https://astral.sh/uv/install.ps1 | iex
+    shell: pwsh
+    if: runner.os == 'Windows'
 
   - name: Find uv cache
     run: echo "UV_CACHE=$(uv cache dir)" >>$GITHUB_ENV