fix: install script on windows

.github/workflows/test-install-osmatrix.yaml

@@ -0,0 +1,30 @@
+name: Test install.sh
+
+on:
+  pull_request:
+    paths:
+      - 'install.sh'
+  push:
+    branches:
+      - 'main'
+      - 'pr-*'
+
+jobs:
+  test-install-script:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run install.sh on ${{ matrix.os }}
+        shell: bash
+        # just run install.sh b/c github can throttle itself based on egress limits and gets 503 sometimes
+        run: |
+          echo "Simulating: curl -s https://raw.githubusercontent.com/$GITHUB_REPOSITORY/$GITHUB_REF_NAME/install.sh | bash"
+          ./install.sh
+          k3d version
+      - name: Create cluster
+        if: matrix.os == 'ubuntu-latest' # mac and windows Github runners can't use docker
+        run: k3d cluster create demo

install.sh

@@ -27,7 +27,15 @@ initOS() {
 
   case "$OS" in
     # Minimalist GNU for Windows
-    mingw*) OS='windows';;
+    mingw*) 
+      OS="windows"
+      USE_SUDO="false"
+      if [[ ! -d "$K3D_INSTALL_DIR" ]]; then
+        # mingw bash that ships with Git for Windows doesn't have /usr/local/bin but ~/bin is first entry in the path
+        mkdir -p ~/bin
+        K3D_INSTALL_DIR=~/bin
+      fi
+      ;;
   esac
 }
 
@@ -107,6 +115,9 @@ checkLatestVersion() {
 downloadFile() {
   K3D_DIST="k3d-$OS-$ARCH"
   DOWNLOAD_URL="$REPO_URL/releases/download/$TAG/$K3D_DIST"
+  if [[ "$OS" == "windows" ]]; then
+    DOWNLOAD_URL=${DOWNLOAD_URL}.exe
+  fi
   K3D_TMP_ROOT="$(mktemp -dt k3d-binary-XXXXXX)"
   K3D_TMP_FILE="$K3D_TMP_ROOT/$K3D_DIST"
   if type "curl" > /dev/null; then