support and test Windows

Signed-off-by: Jason Hall <jason@chainguard.dev>

.github/workflows/use-action.yaml

@@ -1,6 +1,8 @@
 name: Use Action
 
 on:
+  pull_request:
+    branches: ['main']
   push:
     branches: ['main']
 
@@ -8,34 +10,38 @@ jobs:
   use-action:
     name: Use Action
     strategy:
+      fail-fast: false
       matrix:
-        platform: [ubuntu-latest, macos-latest]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
+    defaults:
+      run:
+        shell: bash
 
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v5
         with:
-          go-version: 1.20.x
-      - uses: actions/checkout@v2
+          go-version: 1.21.x
+      - uses: actions/checkout@v4
 
-      - uses: imjasonh/setup-crane@main
+      - uses: ./
       - run: |
           crane digest ubuntu
           crane manifest ubuntu | jq
           crane copy ubuntu ghcr.io/${{ github.repository }}/ubuntu-copy
 
       - name: Install old release
-        uses: imjasonh/setup-crane@main
+        uses: ./
         with:
           version: v0.12.0
       - name: Check installed version
         run: crane version | grep 0.12.0
 
       - name: Install from tip
-        uses: imjasonh/setup-crane@main
+        uses: ./
         with:
           version: tip
       - name: Check installed version (tip)
         run: |
-          sudo rm /usr/local/bin/crane # Uninstall previous versions.
+          rm $(which crane) # Uninstall previous versions.
           crane version

action.yml

@@ -35,15 +35,25 @@ runs:
       if [[ $os == "macOS" ]]; then
         os="Darwin"
       fi
-      
+
       arch=$(uname -m)
       if [[ "$arch" =~ (aarch64|arm64) ]] ; then
         arch=arm64
-      fi  
+      fi
+
+      out=crane
+      if [[ "${os}" == "Windows" ]]; then
+        out=crane.exe
+      fi
 
       if [[ ! -z ${tag} ]]; then
         echo "Installing crane @ ${tag} for ${os} on ${arch}"
-        curl -fsL https://github.com/google/go-containerregistry/releases/download/${tag}/go-containerregistry_${os}_${arch}.tar.gz | sudo tar xzf - -C /usr/local/bin crane
+        tmp=$(mktemp -d)
+        cd ${tmp}
+        curl -fsL https://github.com/google/go-containerregistry/releases/download/${tag}/go-containerregistry_${os}_${arch}.tar.gz | tar xz ${out}
+        chmod +x ${tmp}/${out}
+        PATH=${PATH}:${tmp}
+        echo "${tmp}" >> $GITHUB_PATH
       fi
 
       # NB: username doesn't seem to matter.