2025-07-18 04:28:28 +02:00
21 changed files with 208 additions and 1314 deletions
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@ -17,16 +17,18 @@ jobs:
      - name: 📥 Checkout
        uses: actions/checkout@v4

-      - name: 🛠️ Setup Bun
-        uses: ./
+      - name: 🛠️ Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x

      - name: 📦 Install Dependencies
-        run: bun install
+        run: npm install

      - name: 🧹 Format
        run: |
-          bun run format
-          bun run build
+          npm run format
+          npm run build

      - name: 💾 Commit
        uses: autofix-ci/action@551dded8c6cc8a1054039c8bc0b8b48c51dfc6ef
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@ -23,26 +23,10 @@ jobs:
        env:
          GH_TOKEN: ${{ github.token }}

-  tests:
-    name: Tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Bun
-        uses: ./
-
-      - name: Install dependencies
-        run: bun install
-
-      - name: Run tests
-        run: bun test --coverage
-
  setup-bun:
    runs-on: ${{ matrix.os }}
    continue-on-error: true
-    needs: [remove-cache, tests]
+    needs: [remove-cache]

    strategy:
      matrix:
@ -54,11 +38,10 @@ jobs:
          - latest
          - canary
          - "1.1.0"
-          # https://github.com/oven-sh/setup-bun/issues/37
-          # - "1.x"
-          # - "1"
-          # - "> 1.0.0"
-          # - "< 2"
+          - "1.x"
+          - "1"
+          - "> 1.0.0"
+          - "< 2"
          # Disable <sha> support for now. This is because Github Artifacts
          # expire after 90 days, and we don't have another source of truth yet.
          # - "822a00c4d508b54f650933a73ca5f4a3af9a7983" # 1.0.0 commit
@ -82,7 +65,7 @@ jobs:
    name: setup-bun from (${{ matrix.os }}, ${{ matrix.file.name }})
    runs-on: ${{ matrix.os }}
    continue-on-error: true
-    needs: [remove-cache, tests]
+    needs: [remove-cache]
    strategy:
      matrix:
        os:
@ -91,27 +74,21 @@ jobs:
          - windows-latest

        file:
-          - name: package.json (packageManager bun@1.1.0)
+          - name: package.json (bun@1.1.0)
            file: package.json
            run: |
              echo "$(jq '. += {"packageManager": "bun@1.1.0"}' package.json)" > package.json

-          - name: foo/package.json (packageManager bun@1.1.0)
-            file: foo/package.json
+          - name: /foo/package.json (bun@1.1.0)
+            file: /foo/package.json
            run: |
-              mkdir -p foo
-              echo "$(jq '. += {"packageManager": "bun@1.1.0"}' package.json)" > foo/package.json
+              echo "$(jq '. += {"packageManager": "bun@1.1.0"}' package.json)" > /foo/package.json

-          - name: package.json (packageManager yarn@bun@1.1.0)
+          - name: package.json (yarn@bun@1.1.0)
            file: package.json
            run: |
              echo "$(jq '. += {"packageManager": "yarn@bun@1.1.0"}' package.json)" > package.json

-          - name: package.json (engines bun@1.1.0)
-            file: package.json
-            run: |
-              echo "$(jq '.engines = {"bun": "1.1.0"}' package.json)" > package.json
-
          - name: .tool-versions (bun 1.1.0)
            file: .tool-versions
            run: echo "bun 1.1.0" > .tool-versions
@ -153,7 +130,7 @@ jobs:
    name: setup-bun from (${{ matrix.os }}, download url)
    runs-on: ${{ matrix.os }}
    continue-on-error: true
-    needs: [remove-cache, tests]
+    needs: [remove-cache]

    strategy:
      matrix:
@ -176,47 +153,3 @@ jobs:
        id: run_bun
        run: |
          bun --version
-
-  test-custom-registries:
-    name: test installing deps from custom registries (${{ matrix.os }})
-    runs-on: ${{ matrix.os }}
-    continue-on-error: true
-    needs: [remove-cache, tests]
-    strategy:
-      matrix:
-        os:
-          - ubuntu-latest
-
-    steps:
-      - name: 📥 Checkout
-        uses: actions/checkout@v4
-
-      - name: 🛠️ Setup Bun
-        uses: ./
-        id: setup_bun
-        with:
-          registries: |
-            https://registry.npmjs.org
-            @types:https://registry.yarnpkg.com
-
-      - name: ▶️ Install from default registry
-        run: |
-          output=$(bun add is-odd --verbose --force 2>&1)
-
-          if echo "$output" | grep -q "HTTP/1.1 GET https://registry.npmjs.org/is-odd"; then
-            echo "Successfully installed from default registry"
-          else
-            echo "Failed to install from default registry"
-            exit 1
-          fi
-
-      - name: ▶️ Install from @types registry
-        run: |
-          output=$(bun add @types/bun --verbose --force 2>&1)
-
-          if echo "$output" | grep -q "HTTP/1.1 GET https://registry.yarnpkg.com/@types%2fbun"; then
-            echo "Successfully installed from @types registry"
-          else
-            echo "Failed to install from @types registry"
-            exit 1
-          fi
--- a/.prettierrc
+++ b/.prettierrc
@ -1,4 +0,0 @@
-{
-  "semi": true,
-  "quoteProps": "preserve"
-}
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@ -1,3 +0,0 @@
-{
-  "recommendations": ["esbenp.prettier-vscode", "github.vscode-github-actions"]
-}
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@ -1,12 +0,0 @@
-{
-  "editor.defaultFormatter": "esbenp.prettier-vscode",
-  "search.exclude": {
-    "dist/**": true
-  },
-  // Lock changes to these files
-  "files.readonlyInclude": {
-    "dist/**": true,
-    "bun.lock": true,
-    "package-lock.json": true
-  },
-}
--- a/README.md
+++ b/README.md
@ -18,41 +18,23 @@ Download, install, and setup [Bun](https://bun.sh) in GitHub Actions.
    bun-version-file: ".bun-version"
 ```

-## Using custom registries
-
-You can configure multiple package registries using the `registries` input. This supports both default and scoped registries with various authentication methods.
-
-### Registry configuration
+### Using a custom NPM registry

 ```yaml
 - uses: oven-sh/setup-bun@v2
  with:
-    registries: |
-      https://registry.npmjs.org/
-      @myorg:https://npm.pkg.github.com/|$GITHUB_TOKEN
-      @internal:https://username:$INTERNAL_PASSWORD@registry.internal.com/
-
- name: Install dependencies
-  env:
-    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    INTERNAL_PASSWORD: ${{ secrets.INTERNAL_PASSWORD }}
-  run: bun install
+    registry-url: "https://npm.pkg.github.com/"
+    scope: "@foo"
 ```

-#### Registry format options
+If you need to authenticate with a private registry, you can set the `BUN_AUTH_TOKEN` environment variable.

-| Type                                 | Format                                                    |
-| ------------------------------------ | --------------------------------------------------------- |
-| Default registry                     | `https://registry.example.com/`                           |
-| Default registry with token          | `https://registry.example.com/\|$TOKEN`                   |
-| Scoped registry                      | `@scope:https://registry.example.com/`                    |
-| Scoped registry with token           | `@scope:https://registry.example.com/\|$TOKEN`            |
-| Scoped registry with URL credentials | `@scope:https://username:$PASSWORD@registry.example.com/` |
-
-> [!IMPORTANT]
-> When using authentication, make sure to set the corresponding environment variables in your workflow steps that need access to the registries.
-
-For more information about configuring registries in Bun, see the [official documentation](https://bun.sh/docs/install/registries).
+```yaml
+- name: Install Dependencies
+  env:
+    BUN_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+  run: bun install --frozen-lockfile
+```

 ### Override download url

@ -64,6 +46,10 @@ If you need to override the download URL, you can use the `bun-download-url` inp
    bun-download-url: "https://github.com/oven-sh/bun/releases/latest/download/bun-linux-x64.zip"
 ```

+### Node.js not needed
+
+In most cases, you shouldn't need to use the [setup-node](https://github.com/actions/setup-node) GitHub Action.
+
 ## Inputs

 | Name               | Description                                           | Default     | Examples                                         |
--- a/action.yml
+++ b/action.yml
@ -17,23 +17,12 @@ inputs:
  bun-download-url:
    description: Override the URL to download Bun from. This skips version resolution and verifying AVX2 support.
    required: false
-  registries:
-    description: |
-      List of package registries with authentication support. Format:
-      - Default registry: https://registry.npmjs.org/
-      - Default with token: https://registry.npmjs.org/|token
-      - Scoped registry: @scope:https://registry.example.com/
-      - Scoped with token: @scope:https://registry.example.com/|token
-      - Scoped with credentials: @scope:https://user:pass@registry.example.com/
-    required: false
  registry-url:
    required: false
    description: The URL of the package registry to use for installing Bun. Set the $BUN_AUTH_TOKEN environment variable to authenticate with the registry.
-    deprecationMessage: "Use 'registries' input instead."
  scope:
    required: false
-    description: "The scope for authenticating with the package registry."
-    deprecationMessage: "Use 'registries' input instead."
+    description: The scope for authenticating with the package registry.
  no-cache:
    required: false
    type: boolean
--- a/bun.lock
+++ b/bun.lock
@ -1,29 +1,27 @@
 {
-  "lockfileVersion": 1,
+  "lockfileVersion": 0,
  "workspaces": {
    "": {
      "dependencies": {
-        "@actions/cache": "^4.0.0",
-        "@actions/core": "^1.11.0",
+        "@actions/cache": "^3.1.4",
+        "@actions/core": "^1.10.0",
        "@actions/exec": "^1.1.1",
        "@actions/glob": "^0.4.0",
        "@actions/io": "^1.1.2",
        "@actions/tool-cache": "^2.0.1",
-        "@iarna/toml": "^2.2.5",
      },
      "devDependencies": {
-        "@types/bun": "^1.1.13",
        "@types/node": "^20.8.2",
        "esbuild": "^0.19.2",
-        "prettier": "^3.4.2",
+        "prettier": "^2.8.4",
        "typescript": "^4.9.5",
      },
    },
  },
  "packages": {
-    "@actions/cache": ["@actions/cache@4.0.3", "", { "dependencies": { "@actions/core": "^1.11.1", "@actions/exec": "^1.0.1", "@actions/glob": "^0.1.0", "@actions/http-client": "^2.1.1", "@actions/io": "^1.0.1", "@azure/abort-controller": "^1.1.0", "@azure/ms-rest-js": "^2.6.0", "@azure/storage-blob": "^12.13.0", "@protobuf-ts/plugin": "^2.9.4", "semver": "^6.3.1" } }, "sha512-SvrqFtYJ7I48A/uXNkoJrnukx5weQv1fGquhs3+4nkByZThBH109KTIqj5x/cGV7JGNvb8dLPVywUOqX1fjiXg=="],
+    "@actions/cache": ["@actions/cache@3.2.4", "", { "dependencies": { "@actions/core": "^1.10.0", "@actions/exec": "^1.0.1", "@actions/glob": "^0.1.0", "@actions/http-client": "^2.1.1", "@actions/io": "^1.0.1", "@azure/abort-controller": "^1.1.0", "@azure/ms-rest-js": "^2.6.0", "@azure/storage-blob": "^12.13.0", "semver": "^6.3.1", "uuid": "^3.3.3" } }, "sha512-RuHnwfcDagtX+37s0ZWy7clbOfnZ7AlDJQ7k/9rzt2W4Gnwde3fa/qjSjVuz4vLcLIpc7fUob27CMrqiWZytYA=="],

-    "@actions/core": ["@actions/core@1.11.1", "", { "dependencies": { "@actions/exec": "^1.1.1", "@actions/http-client": "^2.0.1" } }, "sha512-hXJCSrkwfA46Vd9Z3q4cpEpHB1rL5NG04+/rbqW9d3+CSvtB1tYe8UTpAlixa1vj0m/ULglfEK2UKxMGxCxv5A=="],
+    "@actions/core": ["@actions/core@1.10.1", "", { "dependencies": { "@actions/http-client": "^2.0.1", "uuid": "^8.3.2" } }, "sha512-3lBR9EDAY+iYIpTnTIXmWcNbX3T2kCkAEQGIQx4NVQ0575nk2k3GRZDTPQG+vVtS2izSLmINlxXf0uLtnrTP+g=="],

    "@actions/exec": ["@actions/exec@1.1.1", "", { "dependencies": { "@actions/io": "^1.0.1" } }, "sha512-+sCcHHbVdk93a0XT19ECtO/gIXoxvdsgQLzb2fE2/5sIZmWQuluYyjPQtrtTHdU1YzTZ7bAPN4sITq2xi1679w=="],

@ -55,10 +53,6 @@

    "@azure/storage-blob": ["@azure/storage-blob@12.17.0", "", { "dependencies": { "@azure/abort-controller": "^1.0.0", "@azure/core-http": "^3.0.0", "@azure/core-lro": "^2.2.0", "@azure/core-paging": "^1.1.1", "@azure/core-tracing": "1.0.0-preview.13", "@azure/logger": "^1.0.0", "events": "^3.0.0", "tslib": "^2.2.0" } }, "sha512-sM4vpsCpcCApagRW5UIjQNlNylo02my2opgp0Emi8x888hZUvJ3dN69Oq20cEGXkMUWnoCrBaB0zyS3yeB87sQ=="],

-    "@bufbuild/protobuf": ["@bufbuild/protobuf@2.6.0", "", {}, "sha512-6cuonJVNOIL7lTj5zgo/Rc2bKAo4/GvN+rKCrUj7GdEHRzCk8zKOfFwUsL9nAVk5rSIsRmlgcpLzTRysopEeeg=="],
-
-    "@bufbuild/protoplugin": ["@bufbuild/protoplugin@2.6.0", "", { "dependencies": { "@bufbuild/protobuf": "2.6.0", "@typescript/vfs": "^1.5.2", "typescript": "5.4.5" } }, "sha512-mfAwI+4GqUtbw/ddfyolEHaAL86ozRIVlOg2A+SVRbjx1CjsMc1YJO+hBSkt/pqfpR+PmWBbZLstHbXP8KGtMQ=="],
-
    "@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.19.12", "", { "os": "aix", "cpu": "ppc64" }, "sha512-bmoCYyWdEL3wDQIVbcyzRyeKLgk2WtWLTWz1ZIAZF/EGbNOwSA6ew3PftJ1PqMiOOGu0OyFMzG53L0zqIpPeNA=="],

    "@esbuild/android-arm": ["@esbuild/android-arm@0.19.12", "", { "os": "android", "cpu": "arm" }, "sha512-qg/Lj1mu3CdQlDEEiWrlC4eaPZ1KztwGJ9B6J+/6G+/4ewxJg7gqj8eVYWvao1bXrqGiW2rsBZFSX3q2lcW05w=="],
@ -107,30 +101,14 @@

    "@fastify/busboy": ["@fastify/busboy@2.1.1", "", {}, "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA=="],

-    "@iarna/toml": ["@iarna/toml@2.2.5", "", {}, "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="],
-
    "@opentelemetry/api": ["@opentelemetry/api@1.6.0", "", {}, "sha512-OWlrQAnWn9577PhVgqjUvMr1pg57Bc4jv0iL4w0PRuOSRvq67rvHW9Ie/dZVMvCzhSCB+UxhcY/PmCmFj33Q+g=="],

-    "@protobuf-ts/plugin": ["@protobuf-ts/plugin@2.11.1", "", { "dependencies": { "@bufbuild/protobuf": "^2.4.0", "@bufbuild/protoplugin": "^2.4.0", "@protobuf-ts/protoc": "^2.11.1", "@protobuf-ts/runtime": "^2.11.1", "@protobuf-ts/runtime-rpc": "^2.11.1", "typescript": "^3.9" }, "bin": { "protoc-gen-ts": "bin/protoc-gen-ts", "protoc-gen-dump": "bin/protoc-gen-dump" } }, "sha512-HyuprDcw0bEEJqkOWe1rnXUP0gwYLij8YhPuZyZk6cJbIgc/Q0IFgoHQxOXNIXAcXM4Sbehh6kjVnCzasElw1A=="],
-
-    "@protobuf-ts/protoc": ["@protobuf-ts/protoc@2.11.1", "", { "bin": { "protoc": "protoc.js" } }, "sha512-mUZJaV0daGO6HUX90o/atzQ6A7bbN2RSuHtdwo8SSF2Qoe3zHwa4IHyCN1evftTeHfLmdz+45qo47sL+5P8nyg=="],
-
-    "@protobuf-ts/runtime": ["@protobuf-ts/runtime@2.11.1", "", {}, "sha512-KuDaT1IfHkugM2pyz+FwiY80ejWrkH1pAtOBOZFuR6SXEFTsnb/jiQWQ1rCIrcKx2BtyxnxW6BWwsVSA/Ie+WQ=="],
-
-    "@protobuf-ts/runtime-rpc": ["@protobuf-ts/runtime-rpc@2.11.1", "", { "dependencies": { "@protobuf-ts/runtime": "^2.11.1" } }, "sha512-4CqqUmNA+/uMz00+d3CYKgElXO9VrEbucjnBFEjqI4GuDrEQ32MaI3q+9qPBvIGOlL4PmHXrzM32vBPWRhQKWQ=="],
-
-    "@types/bun": ["@types/bun@1.2.18", "", { "dependencies": { "bun-types": "1.2.18" } }, "sha512-Xf6RaWVheyemaThV0kUfaAUvCNokFr+bH8Jxp+tTZfx7dAPA8z9ePnP9S9+Vspzuxxx9JRAXhnyccRj3GyCMdQ=="],
-
    "@types/node": ["@types/node@20.12.2", "", { "dependencies": { "undici-types": "~5.26.4" } }, "sha512-zQ0NYO87hyN6Xrclcqp7f8ZbXNbRfoGWNcMvHTPQp9UUrwI0mI7XBz+cu7/W6/VClYo2g63B0cjull/srU7LgQ=="],

    "@types/node-fetch": ["@types/node-fetch@2.6.11", "", { "dependencies": { "@types/node": "*", "form-data": "^4.0.0" } }, "sha512-24xFj9R5+rfQJLRyM56qh+wnVSYhyXC2tkoBndtY0U+vubqNsYXGjufB2nn8Q6gt0LrARwL6UBtMCSVCwl4B1g=="],

-    "@types/react": ["@types/react@19.1.8", "", { "dependencies": { "csstype": "^3.0.2" } }, "sha512-AwAfQ2Wa5bCx9WP8nZL2uMZWod7J7/JSplxbTmBQ5ms6QpqNYm672H0Vu9ZVKVngQ+ii4R/byguVEUZQyeg44g=="],
-
    "@types/tunnel": ["@types/tunnel@0.0.3", "", { "dependencies": { "@types/node": "*" } }, "sha512-sOUTGn6h1SfQ+gbgqC364jLFBw2lnFqkgF3q0WovEHRLMrVD1sd5aufqi/aJObLekJO+Aq5z646U4Oxy6shXMA=="],

-    "@typescript/vfs": ["@typescript/vfs@1.6.1", "", { "dependencies": { "debug": "^4.1.1" }, "peerDependencies": { "typescript": "*" } }, "sha512-JwoxboBh7Oz1v38tPbkrZ62ZXNHAk9bJ7c9x0eI5zBfBnBYGhURdbnh7Z4smN/MV48Y5OCcZb58n972UtbazsA=="],
-
    "abort-controller": ["abort-controller@3.0.0", "", { "dependencies": { "event-target-shim": "^5.0.0" } }, "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg=="],

    "asynckit": ["asynckit@0.4.0", "", {}, "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="],
@ -139,16 +117,10 @@

    "brace-expansion": ["brace-expansion@1.1.11", "", { "dependencies": { "balanced-match": "^1.0.0", "concat-map": "0.0.1" } }, "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA=="],

-    "bun-types": ["bun-types@1.2.18", "", { "dependencies": { "@types/node": "*" }, "peerDependencies": { "@types/react": "^19" } }, "sha512-04+Eha5NP7Z0A9YgDAzMk5PHR16ZuLVa83b26kH5+cp1qZW4F6FmAURngE7INf4tKOvCE69vYvDEwoNl1tGiWw=="],
-
    "combined-stream": ["combined-stream@1.0.8", "", { "dependencies": { "delayed-stream": "~1.0.0" } }, "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg=="],

    "concat-map": ["concat-map@0.0.1", "", {}, "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg=="],

-    "csstype": ["csstype@3.1.3", "", {}, "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw=="],
-
-    "debug": ["debug@4.4.1", "", { "dependencies": { "ms": "^2.1.3" } }, "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ=="],
-
    "delayed-stream": ["delayed-stream@1.0.0", "", {}, "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ=="],

    "esbuild": ["esbuild@0.19.12", "", { "optionalDependencies": { "@esbuild/aix-ppc64": "0.19.12", "@esbuild/android-arm": "0.19.12", "@esbuild/android-arm64": "0.19.12", "@esbuild/android-x64": "0.19.12", "@esbuild/darwin-arm64": "0.19.12", "@esbuild/darwin-x64": "0.19.12", "@esbuild/freebsd-arm64": "0.19.12", "@esbuild/freebsd-x64": "0.19.12", "@esbuild/linux-arm": "0.19.12", "@esbuild/linux-arm64": "0.19.12", "@esbuild/linux-ia32": "0.19.12", "@esbuild/linux-loong64": "0.19.12", "@esbuild/linux-mips64el": "0.19.12", "@esbuild/linux-ppc64": "0.19.12", "@esbuild/linux-riscv64": "0.19.12", "@esbuild/linux-s390x": "0.19.12", "@esbuild/linux-x64": "0.19.12", "@esbuild/netbsd-x64": "0.19.12", "@esbuild/openbsd-x64": "0.19.12", "@esbuild/sunos-x64": "0.19.12", "@esbuild/win32-arm64": "0.19.12", "@esbuild/win32-ia32": "0.19.12", "@esbuild/win32-x64": "0.19.12" }, "bin": { "esbuild": "bin/esbuild" } }, "sha512-aARqgq8roFBj054KvQr5f1sFu0D65G+miZRCuJyJ0G13Zwx7vRar5Zhn2tkQNzIXcBrNVsv/8stehpj+GAjgbg=="],
@ -165,11 +137,9 @@

    "minimatch": ["minimatch@3.1.2", "", { "dependencies": { "brace-expansion": "^1.1.7" } }, "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw=="],

-    "ms": ["ms@2.1.3", "", {}, "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="],
-
    "node-fetch": ["node-fetch@2.7.0", "", { "dependencies": { "whatwg-url": "^5.0.0" }, "peerDependencies": { "encoding": "^0.1.0" }, "optionalPeers": ["encoding"] }, "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A=="],

-    "prettier": ["prettier@3.4.2", "", { "bin": { "prettier": "bin/prettier.cjs" } }, "sha512-e9MewbtFo+Fevyuxn/4rrcDAaq0IYxPGLvObpQjiZBMAzB9IGmzlnG9RZy3FFas+eBMu2vA0CszMeduow5dIuQ=="],
+    "prettier": ["prettier@2.8.8", "", { "bin": { "prettier": "bin-prettier.js" } }, "sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q=="],

    "process": ["process@0.11.10", "", {}, "sha512-cdGef/drWFoydD1JsMzuFf8100nZl+GT+yacc2bEced5f9Rjk4z+WtFUTBu9PhOi9j/jfmBPu0mMEY4wIdAF8A=="],

@ -201,9 +171,9 @@

    "@actions/cache/@actions/glob": ["@actions/glob@0.1.2", "", { "dependencies": { "@actions/core": "^1.2.6", "minimatch": "^3.0.4" } }, "sha512-SclLR7Ia5sEqjkJTPs7Sd86maMDw43p769YxBOxvPvEWuPEhpAnBsQfENOpXjFYMmhCqd127bmf+YdvJqVqR4A=="],

-    "@actions/glob/@actions/core": ["@actions/core@1.10.1", "", { "dependencies": { "@actions/http-client": "^2.0.1", "uuid": "^8.3.2" } }, "sha512-3lBR9EDAY+iYIpTnTIXmWcNbX3T2kCkAEQGIQx4NVQ0575nk2k3GRZDTPQG+vVtS2izSLmINlxXf0uLtnrTP+g=="],
+    "@actions/core/@actions/http-client": ["@actions/http-client@2.2.0", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-q+epW0trjVUUHboliPb4UF9g2msf+w61b32tAkFEwL/IwP0DQWgbCMM0Hbe3e3WXSKz5VcUXbzJQgy8Hkra/Lg=="],

-    "@actions/tool-cache/@actions/core": ["@actions/core@1.10.1", "", { "dependencies": { "@actions/http-client": "^2.0.1", "uuid": "^8.3.2" } }, "sha512-3lBR9EDAY+iYIpTnTIXmWcNbX3T2kCkAEQGIQx4NVQ0575nk2k3GRZDTPQG+vVtS2izSLmINlxXf0uLtnrTP+g=="],
+    "@actions/core/uuid": ["uuid@8.3.2", "", { "bin": { "uuid": "dist/bin/uuid" } }, "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="],

    "@actions/tool-cache/@actions/http-client": ["@actions/http-client@2.2.0", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-q+epW0trjVUUHboliPb4UF9g2msf+w61b32tAkFEwL/IwP0DQWgbCMM0Hbe3e3WXSKz5VcUXbzJQgy8Hkra/Lg=="],

@ -223,21 +193,11 @@

    "@azure/ms-rest-js/uuid": ["uuid@8.3.2", "", { "bin": { "uuid": "dist/bin/uuid" } }, "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="],

-    "@bufbuild/protoplugin/typescript": ["typescript@5.4.5", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ=="],
-
-    "@protobuf-ts/plugin/typescript": ["typescript@3.9.10", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q=="],
-
    "@types/node-fetch/form-data": ["form-data@4.0.0", "", { "dependencies": { "asynckit": "^0.4.0", "combined-stream": "^1.0.8", "mime-types": "^2.1.12" } }, "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww=="],

    "@types/tunnel/@types/node": ["@types/node@20.8.9", "", { "dependencies": { "undici-types": "~5.26.4" } }, "sha512-UzykFsT3FhHb1h7yD4CA4YhBHq545JC0YnEz41xkipN88eKQtL6rSgocL5tbAP6Ola9Izm/Aw4Ora8He4x0BHg=="],

-    "@actions/cache/@actions/glob/@actions/core": ["@actions/core@1.10.1", "", { "dependencies": { "@actions/http-client": "^2.0.1", "uuid": "^8.3.2" } }, "sha512-3lBR9EDAY+iYIpTnTIXmWcNbX3T2kCkAEQGIQx4NVQ0575nk2k3GRZDTPQG+vVtS2izSLmINlxXf0uLtnrTP+g=="],
-
-    "@actions/glob/@actions/core/@actions/http-client": ["@actions/http-client@2.2.0", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-q+epW0trjVUUHboliPb4UF9g2msf+w61b32tAkFEwL/IwP0DQWgbCMM0Hbe3e3WXSKz5VcUXbzJQgy8Hkra/Lg=="],
-
-    "@actions/glob/@actions/core/uuid": ["uuid@8.3.2", "", { "bin": { "uuid": "dist/bin/uuid" } }, "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="],
-
-    "@actions/tool-cache/@actions/core/uuid": ["uuid@8.3.2", "", { "bin": { "uuid": "dist/bin/uuid" } }, "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="],
+    "@actions/core/@actions/http-client/undici": ["undici@5.26.5", "", { "dependencies": { "@fastify/busboy": "^2.0.0" } }, "sha512-cSb4bPFd5qgR7qr2jYAi0hlX9n5YKK2ONKkLFkxl+v/9BvC0sOpZjBHDBSXc5lWAf5ty9oZdRXytBIHzgUcerw=="],

    "@actions/tool-cache/@actions/http-client/undici": ["undici@5.26.5", "", { "dependencies": { "@fastify/busboy": "^2.0.0" } }, "sha512-cSb4bPFd5qgR7qr2jYAi0hlX9n5YKK2ONKkLFkxl+v/9BvC0sOpZjBHDBSXc5lWAf5ty9oZdRXytBIHzgUcerw=="],

@ -245,18 +205,8 @@

    "@azure/core-http/@azure/core-util/@azure/abort-controller": ["@azure/abort-controller@2.1.1", "", { "dependencies": { "tslib": "^2.6.2" } }, "sha512-NhzeNm5zu2fPlwGXPUjzsRCRuPx5demaZyNcyNYJDqpa/Sbxzvo/RYt9IwUaAOnDW5+r7J9UOE6f22TQnb9nhQ=="],

-    "@actions/cache/@actions/glob/@actions/core/@actions/http-client": ["@actions/http-client@2.2.0", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-q+epW0trjVUUHboliPb4UF9g2msf+w61b32tAkFEwL/IwP0DQWgbCMM0Hbe3e3WXSKz5VcUXbzJQgy8Hkra/Lg=="],
-
-    "@actions/cache/@actions/glob/@actions/core/uuid": ["uuid@8.3.2", "", { "bin": { "uuid": "dist/bin/uuid" } }, "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="],
-
-    "@actions/glob/@actions/core/@actions/http-client/undici": ["undici@5.26.5", "", { "dependencies": { "@fastify/busboy": "^2.0.0" } }, "sha512-cSb4bPFd5qgR7qr2jYAi0hlX9n5YKK2ONKkLFkxl+v/9BvC0sOpZjBHDBSXc5lWAf5ty9oZdRXytBIHzgUcerw=="],
+    "@actions/core/@actions/http-client/undici/@fastify/busboy": ["@fastify/busboy@2.0.0", "", {}, "sha512-JUFJad5lv7jxj926GPgymrWQxxjPYuJNiNjNMzqT+HiuP6Vl3dk5xzG+8sTX96np0ZAluvaMzPsjhHZ5rNuNQQ=="],

    "@actions/tool-cache/@actions/http-client/undici/@fastify/busboy": ["@fastify/busboy@2.0.0", "", {}, "sha512-JUFJad5lv7jxj926GPgymrWQxxjPYuJNiNjNMzqT+HiuP6Vl3dk5xzG+8sTX96np0ZAluvaMzPsjhHZ5rNuNQQ=="],
-
-    "@actions/cache/@actions/glob/@actions/core/@actions/http-client/undici": ["undici@5.26.5", "", { "dependencies": { "@fastify/busboy": "^2.0.0" } }, "sha512-cSb4bPFd5qgR7qr2jYAi0hlX9n5YKK2ONKkLFkxl+v/9BvC0sOpZjBHDBSXc5lWAf5ty9oZdRXytBIHzgUcerw=="],
-
-    "@actions/glob/@actions/core/@actions/http-client/undici/@fastify/busboy": ["@fastify/busboy@2.0.0", "", {}, "sha512-JUFJad5lv7jxj926GPgymrWQxxjPYuJNiNjNMzqT+HiuP6Vl3dk5xzG+8sTX96np0ZAluvaMzPsjhHZ5rNuNQQ=="],
-
-    "@actions/cache/@actions/glob/@actions/core/@actions/http-client/undici/@fastify/busboy": ["@fastify/busboy@2.0.0", "", {}, "sha512-JUFJad5lv7jxj926GPgymrWQxxjPYuJNiNjNMzqT+HiuP6Vl3dk5xzG+8sTX96np0ZAluvaMzPsjhHZ5rNuNQQ=="],
  }
 }
--- a/dist/cache-save/index.js
+++ b/dist/cache-save/index.js
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
--- a/package-lock.json
+++ b/package-lock.json
@ -14,14 +14,12 @@
        "@actions/exec": "^1.1.1",
        "@actions/glob": "^0.4.0",
        "@actions/io": "^1.1.2",
-        "@actions/tool-cache": "^2.0.1",
-        "@iarna/toml": "^2.2.5"
+        "@actions/tool-cache": "^2.0.1"
      },
      "devDependencies": {
-        "@types/bun": "^1.1.13",
        "@types/node": "^20.8.2",
        "esbuild": "^0.19.2",
-        "prettier": "^3.4.2",
+        "prettier": "^2.8.4",
        "typescript": "^4.9.5"
      }
    },
@ -273,12 +271,6 @@
        "node": ">=12"
      }
    },
-    "node_modules/@iarna/toml": {
-      "version": "2.2.5",
-      "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
-      "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg==",
-      "license": "ISC"
-    },
    "node_modules/@opentelemetry/api": {
      "version": "1.5.0",
      "license": "Apache-2.0",
@ -356,16 +348,6 @@
        "@protobuf-ts/runtime": "^2.9.6"
      }
    },
-    "node_modules/@types/bun": {
-      "version": "1.2.18",
-      "resolved": "https://registry.npmjs.org/@types/bun/-/bun-1.2.18.tgz",
-      "integrity": "sha512-Xf6RaWVheyemaThV0kUfaAUvCNokFr+bH8Jxp+tTZfx7dAPA8z9ePnP9S9+Vspzuxxx9JRAXhnyccRj3GyCMdQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "bun-types": "1.2.18"
-      }
-    },
    "node_modules/@types/node": {
      "version": "20.9.1",
      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.1.tgz",
@ -394,17 +376,6 @@
        "node": ">= 6"
      }
    },
-    "node_modules/@types/react": {
-      "version": "19.1.8",
-      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.1.8.tgz",
-      "integrity": "sha512-AwAfQ2Wa5bCx9WP8nZL2uMZWod7J7/JSplxbTmBQ5ms6QpqNYm672H0Vu9ZVKVngQ+ii4R/byguVEUZQyeg44g==",
-      "dev": true,
-      "license": "MIT",
-      "peer": true,
-      "dependencies": {
-        "csstype": "^3.0.2"
-      }
-    },
    "node_modules/@types/tunnel": {
      "version": "0.0.3",
      "license": "MIT",
@ -438,19 +409,6 @@
        "concat-map": "0.0.1"
      }
    },
-    "node_modules/bun-types": {
-      "version": "1.2.18",
-      "resolved": "https://registry.npmjs.org/bun-types/-/bun-types-1.2.18.tgz",
-      "integrity": "sha512-04+Eha5NP7Z0A9YgDAzMk5PHR16ZuLVa83b26kH5+cp1qZW4F6FmAURngE7INf4tKOvCE69vYvDEwoNl1tGiWw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@types/node": "*"
-      },
-      "peerDependencies": {
-        "@types/react": "^19"
-      }
-    },
    "node_modules/combined-stream": {
      "version": "1.0.8",
      "license": "MIT",
@ -465,14 +423,6 @@
      "version": "0.0.1",
      "license": "MIT"
    },
-    "node_modules/csstype": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
-      "integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
-      "dev": true,
-      "license": "MIT",
-      "peer": true
-    },
    "node_modules/delayed-stream": {
      "version": "1.0.0",
      "license": "MIT",
@ -588,16 +538,14 @@
      }
    },
    "node_modules/prettier": {
-      "version": "3.4.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.4.2.tgz",
-      "integrity": "sha512-e9MewbtFo+Fevyuxn/4rrcDAaq0IYxPGLvObpQjiZBMAzB9IGmzlnG9RZy3FFas+eBMu2vA0CszMeduow5dIuQ==",
+      "version": "2.8.8",
      "dev": true,
      "license": "MIT",
      "bin": {
-        "prettier": "bin/prettier.cjs"
+        "prettier": "bin-prettier.js"
      },
      "engines": {
-        "node": ">=14"
+        "node": ">=10.13.0"
      },
      "funding": {
        "url": "https://github.com/prettier/prettier?sponsor=1"
--- a/package.json
+++ b/package.json
@ -27,14 +27,15 @@
    "@actions/exec": "^1.1.1",
    "@actions/glob": "^0.4.0",
    "@actions/io": "^1.1.2",
-    "@actions/tool-cache": "^2.0.1",
-    "@iarna/toml": "^2.2.5"
+    "@actions/tool-cache": "^2.0.1"
  },
  "devDependencies": {
-    "@types/bun": "^1.1.13",
    "@types/node": "^20.8.2",
    "esbuild": "^0.19.2",
-    "prettier": "^3.4.2",
+    "prettier": "^2.8.4",
    "typescript": "^4.9.5"
+  },
+  "prettier": {
+    "quoteProps": "preserve"
  }
 }
--- a/src/action.ts
+++ b/src/action.ts
@ -12,10 +12,9 @@ import { addPath, info, warning } from "@actions/core";
 import { isFeatureAvailable, restoreCache } from "@actions/cache";
 import { downloadTool, extractZip } from "@actions/tool-cache";
 import { getExecOutput } from "@actions/exec";
-import { writeBunfig, Registry } from "./bunfig";
+import { writeBunfig } from "./bunfig";
 import { saveState } from "@actions/core";
 import { addExtension, retry } from "./utils";
-import { cwd } from "node:process";

 export type Input = {
  customUrl?: string;
@ -24,7 +23,8 @@ export type Input = {
  arch?: string;
  avx2?: boolean;
  profile?: boolean;
-  registries?: Registry[];
+  scope?: string;
+  registryUrl?: string;
  noCache?: boolean;
 };

@ -44,8 +44,8 @@ export type CacheState = {
 };

 export default async (options: Input): Promise<Output> => {
-  const bunfigPath = join(cwd(), "bunfig.toml");
-  writeBunfig(bunfigPath, options.registries);
+  const bunfigPath = join(process.cwd(), "bunfig.toml");
+  writeBunfig(bunfigPath, options);

  const url = getDownloadUrl(options);
  const cacheEnabled = isCacheEnabled(options);
@ -84,7 +84,7 @@ export default async (options: Input): Promise<Output> => {
        info(`Using a cached version of Bun: ${revision}`);
      } else {
        warning(
-          `Found a cached version of Bun: ${revision} (but it appears to be corrupted?)`,
+          `Found a cached version of Bun: ${revision} (but it appears to be corrupted?)`
        );
      }
    }
@ -98,7 +98,7 @@ export default async (options: Input): Promise<Output> => {

  if (!revision) {
    throw new Error(
-      "Downloaded a new version of Bun, but failed to check its version? Try again.",
+      "Downloaded a new version of Bun, but failed to check its version? Try again."
    );
  }

@ -124,7 +124,7 @@ export default async (options: Input): Promise<Output> => {

 async function downloadBun(
  url: string,
-  bunPath: string,
+  bunPath: string
 ): Promise<string | undefined> {
  // Workaround for https://github.com/oven-sh/setup-bun/issues/79 and https://github.com/actions/toolkit/issues/1179
  const zipPath = addExtension(await downloadTool(url), ".zip");
@ -168,7 +168,7 @@ function getDownloadUrl(options: Input): string {
  const eprofile = encodeURIComponent(profile ?? false);
  const { href } = new URL(
    `${eversion}/${eos}/${earch}?avx2=${eavx2}&profile=${eprofile}`,
-    "https://bun.sh/download/",
+    "https://bun.sh/download/"
  );
  return href;
 }
--- a/src/bunfig.ts
+++ b/src/bunfig.ts
@ -1,81 +1,50 @@
-import { existsSync, readFileSync, writeFileSync } from "node:fs";
+import { EOL } from "node:os";
+import { appendFileSync } from "node:fs";
 import { info } from "@actions/core";
-import { parse, stringify } from "@iarna/toml";
-import { Registry } from "./registry";

-type BunfigConfig = {
-  install?: {
-    registry?: {
-      url: string;
-      token?: string;
-    };
-    scopes?: Record<string, { url: string; token?: string }>;
-  };
-  [key: string]: any;
+type BunfigOptions = {
+  registryUrl?: string;
+  scope?: string;
 };

-export function writeBunfig(path: string, registries: Registry[]): void {
-  if (!registries.length) {
+export function createBunfig(options: BunfigOptions): string | null {
+  const { registryUrl, scope } = options;
+
+  let url: URL | undefined;
+  if (registryUrl) {
+    try {
+      url = new URL(registryUrl);
+    } catch {
+      throw new Error(`Invalid registry-url: ${registryUrl}`);
+    }
+  }
+
+  let owner: string | undefined;
+  if (scope) {
+    owner = scope.startsWith("@")
+      ? scope.toLocaleLowerCase()
+      : `@${scope.toLocaleLowerCase()}`;
+  }
+
+  if (url && owner) {
+    return `[install.scopes]${EOL}'${owner}' = { token = "$BUN_AUTH_TOKEN", url = "${url}"}${EOL}`;
+  }
+
+  if (url && !owner) {
+    return `[install]${EOL}registry = "${url}"${EOL}`;
+  }
+
+  return null;
+}
+
+export function writeBunfig(path: string, options: BunfigOptions): void {
+  const bunfig = createBunfig(options);
+  if (!bunfig) {
    return;
  }

-  let globalRegistryCount = 0;
-  registries.forEach((registry) => {
-    try {
-      new URL(registry.url);
-    } catch {
-      throw new Error(`Invalid registry URL: ${registry.url}`);
-    }
-
-    if (!registry.scope) {
-      globalRegistryCount++;
-    }
-  });
-
-  if (globalRegistryCount > 1) {
-    throw new Error("You can't have more than one global registry.");
-  }
-
  info(`Writing bunfig.toml to '${path}'.`);
-
-  let config: BunfigConfig = {};
-  if (existsSync(path)) {
-    try {
-      const content = readFileSync(path, { encoding: "utf-8" });
-      config = parse(content) as BunfigConfig;
-    } catch (error) {
-      info(`Error reading existing bunfig: ${error.message}`);
-      config = {};
-    }
-  }
-
-  config.install = config?.install || {};
-  config.install.scopes = config?.install.scopes || {};
-
-  const globalRegistry = registries.find((r) => !r.scope);
-  if (globalRegistry) {
-    config.install.registry = {
-      url: globalRegistry.url,
-      ...(globalRegistry.token ? { token: globalRegistry.token } : {}),
-    };
-  }
-
-  for (const registry of registries) {
-    if (registry.scope) {
-      const scopeName = registry.scope.startsWith("@")
-        ? registry.scope.toLowerCase()
-        : `@${registry.scope.toLowerCase()}`;
-
-      config.install.scopes[scopeName] = {
-        url: registry.url,
-        ...(registry.token ? { token: registry.token } : {}),
-      };
-    }
-  }
-
-  if (Object.keys(config.install.scopes).length === 0) {
-    delete config.install.scopes;
-  }
-
-  writeFileSync(path, stringify(config), { encoding: "utf8" });
+  appendFileSync(path, bunfig, {
+    encoding: "utf8",
+  });
 }
--- a/src/cache-save.ts
+++ b/src/cache-save.ts
@ -2,6 +2,7 @@ import { saveCache } from "@actions/cache";
 import { getState, warning } from "@actions/core";
 import { CacheState } from "./action";
 import { createHash } from "node:crypto";
+
 (async () => {
  const state: CacheState = JSON.parse(getState("cache"));
  if (state.cacheEnabled && !state.cacheHit) {
--- a/src/index.ts
+++ b/src/index.ts
@ -2,33 +2,19 @@ import { tmpdir } from "node:os";
 import { getInput, setOutput, setFailed, getBooleanInput } from "@actions/core";
 import runAction from "./action.js";
 import { readVersionFromFile } from "./utils.js";
-import { parseRegistries } from "./registry.js";

 if (!process.env.RUNNER_TEMP) {
  process.env.RUNNER_TEMP = tmpdir();
 }

-const registries = parseRegistries(getInput("registries"));
-
-// Backwards compatibility for the `registry-url` and `scope` inputs
-const registryUrl = getInput("registry-url");
-const scope = getInput("scope");
-
-if (registryUrl) {
-  registries.push({
-    url: registryUrl,
-    scope: scope,
-    token: "$BUN_AUTH_TOKEN",
-  });
-}
-
 runAction({
  version:
    getInput("bun-version") ||
    readVersionFromFile(getInput("bun-version-file")) ||
    undefined,
  customUrl: getInput("bun-download-url") || undefined,
-  registries: registries,
+  registryUrl: getInput("registry-url") || undefined,
+  scope: getInput("scope") || undefined,
  noCache: getBooleanInput("no-cache") || false,
 })
  .then(({ version, revision, bunPath, url, cacheHit }) => {
--- a/src/registry.ts
+++ b/src/registry.ts
@ -1,62 +0,0 @@
-export type Registry = {
-  url: string;
-  scope: string;
-  token?: string;
-};
-
-/**
- * Parse registries from the simplified format:
- * - Default registry: https://registry.npmjs.org/
- * - Default registry with token: https://registry.npmjs.org/|token123
- * - With scope and credentials in URL: @myorg:https://username:password@registry.myorg.com/
- * - With scope and separate token: @partner:https://registry.partner.com/|basic_token
- */
-export function parseRegistries(input: string): Registry[] {
-  if (!input?.trim()) return [];
-
-  return input
-    .split("\n")
-    .map((line) => line.trim())
-    .filter(Boolean)
-    .map(parseLine)
-    .filter(Boolean) as Registry[];
-}
-
-function parseLine(line: string): Registry | null {
-  const scopeMatch = line.match(
-    /^(@[a-z0-9-_.]+|[a-z0-9-_.]+(?=:[a-z]+:\/\/)):(.+)$/i,
-  );
-
-  if (scopeMatch) {
-    const scope = scopeMatch[1];
-    const urlPart = scopeMatch[2].trim();
-
-    const [url, token] = urlPart.split("|", 2).map((p) => p?.trim());
-
-    try {
-      new URL(url);
-
-      return {
-        url,
-        scope,
-        ...(token && { token }),
-      };
-    } catch (e) {
-      throw new Error(`Invalid URL in registry configuration: ${url}`);
-    }
-  } else {
-    const [url, token] = line.split("|", 2).map((p) => p?.trim());
-
-    try {
-      new URL(url);
-
-      return {
-        url,
-        scope: "",
-        ...(token && { token }),
-      };
-    } catch (e) {
-      throw new Error(`Invalid URL in registry configuration: ${url}`);
-    }
-  }
-}
--- a/src/utils.ts
+++ b/src/utils.ts
@ -6,14 +6,14 @@ import { resolve, basename } from "node:path";
 export function retry<T>(
  fn: () => Promise<T>,
  retries: number,
-  timeout = 10000,
+  timeout = 10000
 ): Promise<T> {
  return fn().catch((err) => {
    if (retries <= 0) {
      throw err;
    }
    return new Promise((resolve) => setTimeout(resolve, timeout)).then(() =>
-      retry(fn, retries - 1, timeout),
+      retry(fn, retries - 1, timeout)
    );
  });
 }
@ -28,10 +28,8 @@ export function addExtension(path: string, ext: string): string {
 }

 const FILE_VERSION_READERS = {
-  "package.json": (content: string) => {
-    const pkg = JSON.parse(content);
-    return pkg.packageManager?.split("bun@")?.[1] ?? pkg.engines?.bun;
-  },
+  "package.json": (content: string) =>
+    JSON.parse(content).packageManager?.split("bun@")?.[1],
  ".tool-versions": (content: string) =>
    content.match(/^bun\s*(?<version>.*?)$/m)?.groups?.version,
  ".bumrc": (content: string) => content, // https://github.com/owenizedd/bum
--- a/tests/bunfig.spec.ts
+++ b/tests/bunfig.spec.ts
@ -1,291 +0,0 @@
-import { afterEach, describe, expect, it } from "bun:test";
-import { existsSync, unlinkSync } from "node:fs";
-import { writeBunfig } from "../src/bunfig";
-import { EOL } from "os";
-
-describe("writeBunfig", () => {
-  const filePath = "bunfig_test.toml";
-
-  async function getFileAndContents() {
-    const file = Bun.file(filePath);
-    const contents = (await file.text()).split(EOL);
-
-    return { file, contents };
-  }
-
-  afterEach(() => {
-    if (existsSync(filePath)) unlinkSync(filePath);
-    console.log(`${filePath} was deleted`);
-  });
-
-  describe("when no bunfig_test.toml file exists", () => {
-    it("should create a new file with scopes content", async () => {
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "foo-bar",
-          token: "$BUN_AUTH_TOKEN",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        '[install.scopes."@foo-bar"]',
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-
-    it("should create a new file with global registry", async () => {
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install.registry]",
-        'url = "https://npm.pkg.github.com"',
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-
-    it("should create a new file with global registry & token", async () => {
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "",
-          token: "$BUN_AUTH_TOKEN",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install.registry]",
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-  });
-
-  describe("when local bunfig_test.toml file exists", () => {
-    it("and no [install.scopes] exists, should concatenate file correctly", async () => {
-      const bunfig = `[install]${EOL}optional = true${EOL}${EOL}[install.cache]${EOL}disable = true`;
-
-      await Bun.write(filePath, bunfig);
-
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "foo-bar",
-          token: "$BUN_AUTH_TOKEN",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install]",
-        "optional = true",
-        "",
-        "  [install.cache]",
-        "  disable = true",
-        "",
-        '[install.scopes."@foo-bar"]',
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-
-    it("and [install.scopes] exists and it's not the same registry, should concatenate file correctly", async () => {
-      const bunfig = `[install]${EOL}optional = true${EOL}${EOL}[install.scopes]${EOL}'@bla-ble' = { token = "$BUN_AUTH_TOKEN", url = "https://npm.pkg.github.com/" }${EOL}${EOL}[install.cache]${EOL}disable = true`;
-
-      await Bun.write(filePath, bunfig);
-
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "foo-bar",
-          token: "$BUN_AUTH_TOKEN",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install]",
-        "optional = true",
-        "",
-        '[install.scopes."@bla-ble"]',
-        'token = "$BUN_AUTH_TOKEN"',
-        'url = "https://npm.pkg.github.com/"',
-        "",
-        '[install.scopes."@foo-bar"]',
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-        "  [install.cache]",
-        "  disable = true",
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-
-    it("and [install.scopes] exists and it's the same registry, should concatenate file correctly", async () => {
-      const bunfig = `[install]${EOL}optional = true${EOL}${EOL}[install.scopes]${EOL}'@foo-bar' = { token = "$BUN_AUTH_TOKEN", url = "https://npm.pkg.github.com/" }${EOL}'@bla-ble' = { token = "$BUN_AUTH_TOKEN", url = "https://npm.pkg.github.com/" }${EOL}${EOL}[install.cache]${EOL}disable = true`;
-
-      await Bun.write(filePath, bunfig);
-
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "foo-bar",
-          token: "$BUN_AUTH_TOKEN",
-        },
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install]",
-        "optional = true",
-        "",
-        '[install.scopes."@foo-bar"]',
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-        '[install.scopes."@bla-ble"]',
-        'token = "$BUN_AUTH_TOKEN"',
-        'url = "https://npm.pkg.github.com/"',
-        "",
-        "  [install.cache]",
-        "  disable = true",
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-
-    it("and [install.scopes] and [install] exists, should concantenate file correctly", async () => {
-      const bunfig = `[install]${EOL}optional = true${EOL}${EOL}[install.scopes]${EOL}'@foo-bar' = { token = "$BUN_AUTH_TOKEN", url = "https://npm.pkg.github.com/" }${EOL}'@bla-ble' = { token = "$BUN_AUTH_TOKEN", url = "https://npm.pkg.github.com/" }${EOL}${EOL}[install.cache]${EOL}disable = true`;
-
-      await Bun.write(filePath, bunfig);
-
-      writeBunfig(filePath, [
-        {
-          url: "https://npm.pkg.github.com",
-          scope: "foo-bar",
-          token: "$BUN_AUTH_TOKEN",
-        },
-        {
-          url: "https://bun.sh",
-          scope: "",
-          token: "$BUN_AUTH_TOKEN",
-        }, // global registry
-      ]);
-
-      const { file, contents } = await getFileAndContents();
-
-      expect(file.exists()).resolves.toBeTrue();
-
-      const expectedContents = [
-        "[install]",
-        "optional = true",
-        "",
-        '[install.scopes."@foo-bar"]',
-        'url = "https://npm.pkg.github.com"',
-        'token = "$BUN_AUTH_TOKEN"',
-        "",
-        '[install.scopes."@bla-ble"]',
-        'token = "$BUN_AUTH_TOKEN"',
-        'url = "https://npm.pkg.github.com/"',
-        "",
-        "  [install.cache]",
-        "  disable = true",
-        "",
-        "  [install.registry]",
-        '  url = "https://bun.sh"',
-        '  token = "$BUN_AUTH_TOKEN"',
-        "",
-      ];
-
-      contents.forEach((content, index) =>
-        expect(content).toBe(expectedContents[index])
-      );
-
-      expect(contents.length).toBe(expectedContents.length);
-    });
-  });
-
-  describe("when multiple global registries are provided", () => {
-    it("should throw an error", () => {
-      expect(() => {
-        writeBunfig(filePath, [
-          {
-            url: "https://npm.pkg.github.com",
-            scope: "",
-            token: "$BUN_AUTH_TOKEN",
-          },
-          {
-            url: "https://bun.sh",
-            scope: "",
-            token: "$BUN_AUTH_TOKEN",
-          },
-        ]);
-      }).toThrow("You can't have more than one global registry.");
-    });
-  });
-});
--- a/tests/registry.spec.ts
+++ b/tests/registry.spec.ts
@ -1,170 +0,0 @@
-import { describe, expect, it } from "bun:test";
-import { parseRegistries } from "../src/registry";
-
-describe("registry", () => {
-  describe("parseRegistries", () => {
-    it("should return an empty array for empty input", () => {
-      expect(parseRegistries("")).toEqual([]);
-      expect(parseRegistries("   ")).toEqual([]);
-      expect(parseRegistries(null as any)).toEqual([]);
-      expect(parseRegistries(undefined as any)).toEqual([]);
-    });
-
-    it("should parse default registry without token", () => {
-      const input = "https://registry.npmjs.org/";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.npmjs.org/",
-          scope: "",
-        },
-      ]);
-    });
-
-    it("should parse default registry with token", () => {
-      const input = "https://registry.npmjs.org/|npm_token123";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.npmjs.org/",
-          scope: "",
-          token: "npm_token123",
-        },
-      ]);
-    });
-
-    it("should parse scoped registry with URL credentials", () => {
-      const input = "@myorg:https://username:password@registry.myorg.com/";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://username:password@registry.myorg.com/",
-          scope: "@myorg",
-        },
-      ]);
-    });
-
-    it("should parse scoped registry with separate token", () => {
-      const input = "@partner:https://registry.partner.com/|token_abc123";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.partner.com/",
-          scope: "@partner",
-          token: "token_abc123",
-        },
-      ]);
-    });
-
-    it("should parse multiple registries", () => {
-      const input = `
-        https://registry.npmjs.org/
-        @myorg:https://username:password@registry.myorg.com/
-        @partner:https://registry.partner.com/|token_abc123
-      `;
-
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.npmjs.org/",
-          scope: "",
-        },
-        {
-          url: "https://username:password@registry.myorg.com/",
-          scope: "@myorg",
-        },
-        {
-          url: "https://registry.partner.com/",
-          scope: "@partner",
-          token: "token_abc123",
-        },
-      ]);
-    });
-
-    it("should handle scope names without @ prefix", () => {
-      const input = "myorg:https://registry.myorg.com/|token123";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.myorg.com/",
-          scope: "myorg",
-          token: "token123",
-        },
-      ]);
-    });
-
-    it("should throw error for invalid URLs", () => {
-      expect(() => {
-        parseRegistries("@myorg:not-a-valid-url");
-      }).toThrow("Invalid URL in registry configuration: not-a-valid-url");
-
-      expect(() => {
-        parseRegistries("also-not-a-valid-url");
-      }).toThrow("Invalid URL in registry configuration: also-not-a-valid-url");
-    });
-
-    it("should handle whitespace and empty lines", () => {
-      const input = `
-
-        https://registry.npmjs.org/
-
-        @myorg:https://registry.myorg.com/|token123
-
-      `;
-
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.npmjs.org/",
-          scope: "",
-        },
-        {
-          url: "https://registry.myorg.com/",
-          scope: "@myorg",
-          token: "token123",
-        },
-      ]);
-    });
-
-    it("should handle URLs with paths and query parameters", () => {
-      const input =
-        "@myorg:https://registry.myorg.com/npm/registry/?timeout=5000|token123";
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.myorg.com/npm/registry/?timeout=5000",
-          scope: "@myorg",
-          token: "token123",
-        },
-      ]);
-    });
-
-    it("should correctly handle scopes with hyphens and underscores", () => {
-      const input = `
-        @my-org:https://registry.myorg.com/
-        @my_org:https://registry.myorg.com/
-      `;
-
-      const result = parseRegistries(input);
-
-      expect(result).toEqual([
-        {
-          url: "https://registry.myorg.com/",
-          scope: "@my-org",
-        },
-        {
-          url: "https://registry.myorg.com/",
-          scope: "@my_org",
-        },
-      ]);
-    });
-  });
-});
--- a/tests/tsconfig.json
+++ b/tests/tsconfig.json
@ -1,8 +0,0 @@
-{
-  "extends": "../tsconfig.json",
-  "compilerOptions": {
-    "types": [
-      "bun"
-    ]
-  }
-}