Do not install bun on Windows.

package.json

@@ -37,7 +37,7 @@
     "lint:lockfile": "lockfile-lint",
     "lint:markdown": "markdownlint \"**/*.md\" --ignore node_modules --ignore build --config .markdownlint.js",
     "lint:src": "eslint --cache --cache-location node_modules/.cache/.eslintcache --ignore-path .gitignore --report-unused-disable-directives .",
-    "prepare": "husky install",
+    "prepare": "husky install && test/bun-setup.sh",
     "prepublishOnly": "npm run build",
     "prettier": "prettier .",
     "test": "mocha test test/package-managers/*",
@@ -116,7 +116,6 @@
     "@types/update-notifier": "^6.0.4",
     "@typescript-eslint/eslint-plugin": "^5.62.0",
     "@typescript-eslint/parser": "^5.62.0",
-    "bun": "^1.0.0",
     "c8": "^7.14.0",
     "chai": "^4.3.7",
     "chai-as-promised": "^7.1.1",

test/bun-setup.sh

@@ -0,0 +1,10 @@
+# Install bun if not installed, except on Windows where it is not yet supported.
+# Must be run in a prepare script instead of devDependencies to install conditionally based on OS.
+if [[ "$OSTYPE" != "win32" ]]; then
+  bun -v &> /dev/null
+  BUN_EXISTS="$?"
+
+  [ $BUN_EXISTS -ne 0 ] && curl -fsSL https://bun.sh/install | bash
+
+  exit 0
+fi