Publish Stable

- @vercel/build-utils@2.13.0

.github/workflows/publish.yml

@@ -12,21 +12,39 @@ jobs:
     name: Publish
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/setup-go@v2
+    - name: Checkout
+      uses: actions/checkout@v1
+    - name: Check Release
+      id: check-release
+      run: |
+        tag="$(git describe --tags --exact-match 2> /dev/null || :)"
+        if [[ -z "$tag" ]];
+          then
+            echo "::set-output name=IS_RELEASE::false"
+          else
+            echo "::set-output name=IS_RELEASE::true"
+        fi
+    - name: Setup Go
+      if: ${{ steps.check-release.outputs.IS_RELEASE == 'true' }}
+      uses: actions/setup-go@v2
       with:
         go-version: '1.13.15'
-    - uses: actions/setup-node@v2
+    - name: Setup Node
+      if: ${{ steps.check-release.outputs.IS_RELEASE == 'true' }}
+      uses: actions/setup-node@v2
       with:
-        node-version: 12
-    - uses: actions/checkout@v1
+        node-version: 14
     - name: Install
+      if: ${{ steps.check-release.outputs.IS_RELEASE == 'true' }}
       run: yarn install --check-files --frozen-lockfile --network-timeout 1000000
     - name: Build
+      if: ${{ steps.check-release.outputs.IS_RELEASE == 'true' }}
       run: yarn build
       env:
         GA_TRACKING_ID: ${{ secrets.GA_TRACKING_ID }}
         SENTRY_DSN: ${{ secrets.SENTRY_DSN }}
     - name: Publish
+      if: ${{ steps.check-release.outputs.IS_RELEASE == 'true' }}
       run: yarn publish-from-github
       env:
         NPM_TOKEN: ${{ secrets.NPM_TOKEN_ELEVATED }}

errors/no-single-file-deployments.md

@@ -0,0 +1,9 @@
+# No Single File Deployments
+
+#### Why This Error Occurred
+
+You attempted to create a Vercel deployment where the input is a file, rather than a directory. Previously this was allowed, however this behavior has been removed as of Vercel CLI v24.0.0 because it exposed a potential security risk if the user accidentally created a deployment from a sensitive file.
+
+#### Possible Ways to Fix It
+
+- Run the `vercel deploy` command against a directory, instead of a file.

examples/README.md

@@ -14,9 +14,9 @@ Vercel is a cloud platform for static frontends and serverless functions. It ena
 
 This repository consists of multiple examples, created for use with the [Vercel](https://vercel.com) platform. In addition to this, it also contains:
 
-- [Code of Conduct](https://github.com/vercel/vercel/blob/master/.github/CODE_OF_CONDUCT.md) - our Code of Conduct, adapted from the [Contributor Covenant](http://contributor-covenant.org)
-- [Contributing Guidelines](https://github.com/vercel/vercel/blob/master/.github/CONTRIBUTING.md) - a guide on how to contribute to the examples repository
-- [License](https://github.com/vercel/vercel/blob/master/LICENSE) - the standard MIT license under which these examples are published
+- [Code of Conduct](https://github.com/vercel/vercel/blob/main/.github/CODE_OF_CONDUCT.md) - our Code of Conduct, adapted from the [Contributor Covenant](http://contributor-covenant.org)
+- [Contributing Guidelines](https://github.com/vercel/vercel/blob/main/.github/CONTRIBUTING.md) - a guide on how to contribute to the examples repository
+- [License](https://github.com/vercel/vercel/blob/main/LICENSE) - the standard MIT license under which these examples are published
 
 We recommend familiarizing yourself with the above sections, particularly if you are looking to make a contribution.
 
@@ -60,7 +60,7 @@ If you would like to upgrade a project to take advantage of zero configuration,
 
 ## How to Contribute
 
-Contributing examples should be an enjoyable experience, as such we have created a set of [contributing guidelines](https://github.com/vercel/vercel/blob/master/.github/CONTRIBUTING.md) to help you do so.
+Contributing examples should be an enjoyable experience, as such we have created a set of [contributing guidelines](https://github.com/vercel/vercel/blob/main/.github/CONTRIBUTING.md) to help you do so.
 
 The guidelines cover important information such as the requirements for new examples and where to get help if you have any questions.
 
@@ -76,7 +76,7 @@ When submitting an issue, please thoroughly and concisely describe the problem y
 
 ## License
 
-This repository is an open source project. See the [License](https://github.com/vercel/vercel/blob/master/LICENSE).
+This repository is an open source project. See the [License](https://github.com/vercel/vercel/blob/main/LICENSE).
 
 ## Get In Touch
 

examples/angular/README.md

@@ -1,4 +1,4 @@
-![Angular Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/angular.svg)
+![Angular Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/angular.svg)
 
 # Angular Example
 

examples/blitzjs/README.md

@@ -1,4 +1,4 @@
-![Blitz Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/blitz.svg)
+![Blitz Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/blitz.svg)
 
 # Blitz.js Example
 

examples/create-react-app/README.md

@@ -1,4 +1,4 @@
-![React Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/react.svg)
+![React Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/react.svg)
 
 # React Example
 

examples/docusaurus/README.md

@@ -1,4 +1,4 @@
-![Docusaurus Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/docusaurus.svg)
+![Docusaurus Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/docusaurus.svg)
 
 # Docusaurus Example
 

examples/eleventy/README.md

@@ -1,4 +1,4 @@
-![Eleventy Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/eleventy.svg)
+![Eleventy Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/eleventy.svg)
 
 # Eleventy Example
 

examples/ember/README.md

@@ -1,4 +1,4 @@
-![Ember Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/ember.svg)
+![Ember Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/ember.svg)
 
 # Ember Example
 

examples/gatsby/README.md

@@ -1,4 +1,4 @@
-![Gatsby Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/gatsby.svg)
+![Gatsby Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/gatsby.svg)
 
 # Gatsby Example
 

examples/gridsome/README.md

@@ -1,4 +1,4 @@
-![Gridsome Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/gridsome.svg)
+![Gridsome Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/gridsome.svg)
 
 # Gridsome Example
 

examples/hexo/README.md

@@ -1,4 +1,4 @@
-![Hexo Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/hexo.svg)
+![Hexo Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/hexo.svg)
 
 # Hexo Example
 

examples/polymer/README.md

@@ -1,4 +1,4 @@
-![Polymer Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/polymer.svg)
+![Polymer Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/polymer.svg)
 
 # Polymer Example
 

examples/preact/README.md

@@ -1,4 +1,4 @@
-![Preact Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/preact.svg)
+![Preact Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/preact.svg)
 
 # Preact Example
 

examples/redwoodjs/README.md

@@ -1,4 +1,4 @@
-![RedwoodJS Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/redwoodjs.svg)
+![RedwoodJS Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/redwoodjs.svg)
 
 # RedwoodJS Example
 

examples/saber/README.md

@@ -1,4 +1,4 @@
-![Saber Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/saber.svg)
+![Saber Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/saber.svg)
 
 # Saber Example
 

examples/scully/README.md

@@ -1,4 +1,4 @@
-![Scully Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/scully.svg)
+![Scully Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/scully.svg)
 
 # Scully Example
 

examples/solidstart/.gitignore

@@ -0,0 +1,22 @@
+dist
+worker
+.solid
+.vercel
+.output
+
+# dependencies
+/node_modules
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+*.launch
+.settings/
+
+# Temp
+gitignore
+
+# System Files
+.DS_Store
+Thumbs.db

examples/solidstart/README.md

@@ -0,0 +1,28 @@
+![Solid Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/solid.svg)
+
+# SolidStart
+
+Everything you need to build a Solid project, powered by [`solid-start`](https://github.com/ryansolid/solid-start/tree/main/packages/start);
+
+## Deploy Your Own
+
+[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/vercel/vercel/tree/main/examples/solidstart&template=solidstart)
+
+## Developing
+
+Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
+
+```bash
+npm run dev
+
+# or start the server and open the app in a new browser tab
+npm run dev -- --open
+```
+
+## Building
+
+This uses the [Vercel Adapter](https://github.com/solidjs/solid-start/tree/main/packages/start-vercel) for SolidStart.
+
+```bash
+npm run build
+```

examples/solidstart/jsconfig.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "jsx": "preserve",
+    "jsxImportSource": "solid-js",
+    "paths": {
+      "~/*": ["./src/*"]
+    }
+  }
+}

examples/solidstart/package.json

@@ -0,0 +1,20 @@
+{
+  "scripts": {
+    "dev": "solid-start dev",
+    "build": "solid-start build",
+    "start": "solid-start start"
+  },
+  "type": "module",
+  "private": true,
+  "devDependencies": {
+    "solid-app-router": "^0.1.14",
+    "solid-js": "^1.2.6",
+    "solid-meta": "^0.27.2",
+    "solid-start": "next",
+    "solid-start-vercel": "next",
+    "vite": "^2.7.1"
+  },
+  "engines": {
+    "node": ">=14"
+  }
+}

examples/solidstart/src/components/Counter.css

@@ -0,0 +1,20 @@
+.increment {
+  font-family: inherit;
+  font-size: inherit;
+  padding: 1em 2em;
+  color: #335d92;
+  background-color: rgba(68, 107, 158, 0.1);
+  border-radius: 2em;
+  border: 2px solid rgba(68, 107, 158, 0);
+  outline: none;
+  width: 200px;
+  font-variant-numeric: tabular-nums;
+}
+
+.increment:focus {
+  border: 2px solid #335d92;
+}
+
+.increment:active {
+  background-color: rgba(68, 107, 158, 0.2);
+}

examples/solidstart/src/components/Counter.jsx

@@ -0,0 +1,11 @@
+import { createSignal } from "solid-js";
+import "./Counter.css";
+
+export default function Counter() {
+  const [count, setCount] = createSignal(0);
+  return (
+    <button class="increment" onClick={() => setCount(count() + 1)}>
+      Clicks: {count}
+    </button>
+  );
+}

examples/solidstart/src/pages/index.css

@@ -0,0 +1,36 @@
+body {
+  font-family: Gordita, Roboto, Oxygen, Ubuntu, Cantarell,
+    'Open Sans', 'Helvetica Neue', sans-serif;
+}
+
+main {
+  text-align: center;
+  padding: 1em;
+  margin: 0 auto;
+}
+
+h1 {
+  color: #335d92;
+  text-transform: uppercase;
+  font-size: 4rem;
+  font-weight: 100;
+  line-height: 1.1;
+  margin: 4rem auto;
+  max-width: 14rem;
+}
+
+p {
+  max-width: 14rem;
+  margin: 2rem auto;
+  line-height: 1.35;
+}
+
+@media (min-width: 480px) {
+  h1 {
+    max-width: none;
+  }
+
+  p {
+    max-width: none;
+  }
+}

examples/solidstart/src/pages/index.jsx

@@ -0,0 +1,18 @@
+import Counter from "~/components/Counter";
+import "./index.css";
+
+export default function Home() {
+  return (
+    <main>
+      <h1>Hello world!</h1>
+      <Counter />
+      <p>
+        Visit{" "}
+        <a href="https://solidjs.com" target="_blank">
+          solidjs.com
+        </a>{" "}
+        to learn how to build Solid apps.
+      </p>
+    </main>
+  );
+}

examples/solidstart/src/root.jsx

@@ -0,0 +1,21 @@
+// @refresh reload
+import { Links, Meta, Outlet, Scripts } from "solid-start/components";
+
+export default function Root({ Start }) {
+  return (
+    <Start>
+      <html lang="en">
+        <head>
+          <meta charset="utf-8" />
+          <meta name="viewport" content="width=device-width, initial-scale=1" />
+          <Meta />
+          <Links />
+        </head>
+        <body>
+          <Outlet />
+          <Scripts />
+        </body>
+      </html>
+    </Start>
+  );
+}

examples/solidstart/vite.config.js

@@ -0,0 +1,7 @@
+import { defineConfig } from "vite";
+import solid from "solid-start";
+import vercel from "solid-start-vercel"
+
+export default defineConfig({
+  plugins: [solid({ adapter: vercel() })]
+});

examples/solidstart/yarn.lock

@@ -0,0 +1,934 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
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+  version "7.16.0"
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+
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+
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+    "@babel/helper-compilation-targets" "^7.16.0"
+    "@babel/helper-module-transforms" "^7.16.0"
+    "@babel/helpers" "^7.16.0"
+    "@babel/parser" "^7.16.0"
+    "@babel/template" "^7.16.0"
+    "@babel/traverse" "^7.16.0"
+    "@babel/types" "^7.16.0"
+    convert-source-map "^1.7.0"
+    debug "^4.1.0"
+    gensync "^1.0.0-beta.2"
+    json5 "^2.1.2"
+    semver "^6.3.0"
+    source-map "^0.5.0"
+
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+    "@babel/helper-split-export-declaration" "^7.16.0"
+    "@babel/helper-validator-identifier" "^7.15.7"
+    "@babel/template" "^7.16.0"
+    "@babel/traverse" "^7.16.0"
+    "@babel/types" "^7.16.0"
+
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+    "@babel/generator" "^7.16.0"
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+  resolved "https://registry.yarnpkg.com/@rollup/plugin-node-resolve/-/plugin-node-resolve-13.0.6.tgz#29629070bb767567be8157f575cfa8f2b8e9ef77"
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+  dependencies:
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+
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+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.18.1.tgz#60d3920f25b6860eb917c6c7b185576f4d8b017f"
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+    escalade "^3.1.1"
+    node-releases "^2.0.1"
+    picocolors "^1.0.0"
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+    supports-color "^5.3.0"
+
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+  dependencies:
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+
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+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
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+  integrity sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=
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+  integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
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+  dependencies:
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+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.3.tgz#04266e0b70a98d4462e6e288e38259213332b664"
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+  dependencies:
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+  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-4.2.2.tgz#44d2ea3679b8f4d4ffba33f03d865fc1e7bf4955"
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+
+electron-to-chromium@^1.3.896:
+  version "1.4.14"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.14.tgz#b0aa41fbfbf2eff8c2c6f7a871c03075250f8956"
+  integrity sha512-RsGkAN9JEAYMObS72kzUsPPcPGMqX1rBqGuXi9aa4TBKLzICoLf+DAAtd0fVFzrniJqYzpby47gthCUoObfs0Q==
+
+esbuild-android-arm64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-android-arm64/-/esbuild-android-arm64-0.13.15.tgz#3fc3ff0bab76fe35dd237476b5d2b32bb20a3d44"
+  integrity sha512-m602nft/XXeO8YQPUDVoHfjyRVPdPgjyyXOxZ44MK/agewFFkPa8tUo6lAzSWh5Ui5PB4KR9UIFTSBKh/RrCmg==
+
+esbuild-darwin-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-64/-/esbuild-darwin-64-0.13.15.tgz#8e9169c16baf444eacec60d09b24d11b255a8e72"
+  integrity sha512-ihOQRGs2yyp7t5bArCwnvn2Atr6X4axqPpEdCFPVp7iUj4cVSdisgvEKdNR7yH3JDjW6aQDw40iQFoTqejqxvQ==
+
+esbuild-darwin-arm64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-arm64/-/esbuild-darwin-arm64-0.13.15.tgz#1b07f893b632114f805e188ddfca41b2b778229a"
+  integrity sha512-i1FZssTVxUqNlJ6cBTj5YQj4imWy3m49RZRnHhLpefFIh0To05ow9DTrXROTE1urGTQCloFUXTX8QfGJy1P8dQ==
+
+esbuild-freebsd-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-64/-/esbuild-freebsd-64-0.13.15.tgz#0b8b7eca1690c8ec94c75680c38c07269c1f4a85"
+  integrity sha512-G3dLBXUI6lC6Z09/x+WtXBXbOYQZ0E8TDBqvn7aMaOCzryJs8LyVXKY4CPnHFXZAbSwkCbqiPuSQ1+HhrNk7EA==
+
+esbuild-freebsd-arm64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-arm64/-/esbuild-freebsd-arm64-0.13.15.tgz#2e1a6c696bfdcd20a99578b76350b41db1934e52"
+  integrity sha512-KJx0fzEDf1uhNOZQStV4ujg30WlnwqUASaGSFPhznLM/bbheu9HhqZ6mJJZM32lkyfGJikw0jg7v3S0oAvtvQQ==
+
+esbuild-linux-32@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-32/-/esbuild-linux-32-0.13.15.tgz#6fd39f36fc66dd45b6b5f515728c7bbebc342a69"
+  integrity sha512-ZvTBPk0YWCLMCXiFmD5EUtB30zIPvC5Itxz0mdTu/xZBbbHJftQgLWY49wEPSn2T/TxahYCRDWun5smRa0Tu+g==
+
+esbuild-linux-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-64/-/esbuild-linux-64-0.13.15.tgz#9cb8e4bcd7574e67946e4ee5f1f1e12386bb6dd3"
+  integrity sha512-eCKzkNSLywNeQTRBxJRQ0jxRCl2YWdMB3+PkWFo2BBQYC5mISLIVIjThNtn6HUNqua1pnvgP5xX0nHbZbPj5oA==
+
+esbuild-linux-arm64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm64/-/esbuild-linux-arm64-0.13.15.tgz#3891aa3704ec579a1b92d2a586122e5b6a2bfba1"
+  integrity sha512-bYpuUlN6qYU9slzr/ltyLTR9YTBS7qUDymO8SV7kjeNext61OdmqFAzuVZom+OLW1HPHseBfJ/JfdSlx8oTUoA==
+
+esbuild-linux-arm@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm/-/esbuild-linux-arm-0.13.15.tgz#8a00e99e6a0c6c9a6b7f334841364d8a2b4aecfe"
+  integrity sha512-wUHttDi/ol0tD8ZgUMDH8Ef7IbDX+/UsWJOXaAyTdkT7Yy9ZBqPg8bgB/Dn3CZ9SBpNieozrPRHm0BGww7W/jA==
+
+esbuild-linux-mips64le@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-mips64le/-/esbuild-linux-mips64le-0.13.15.tgz#36b07cc47c3d21e48db3bb1f4d9ef8f46aead4f7"
+  integrity sha512-KlVjIG828uFPyJkO/8gKwy9RbXhCEUeFsCGOJBepUlpa7G8/SeZgncUEz/tOOUJTcWMTmFMtdd3GElGyAtbSWg==
+
+esbuild-linux-ppc64le@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-ppc64le/-/esbuild-linux-ppc64le-0.13.15.tgz#f7e6bba40b9a11eb9dcae5b01550ea04670edad2"
+  integrity sha512-h6gYF+OsaqEuBjeesTBtUPw0bmiDu7eAeuc2OEH9S6mV9/jPhPdhOWzdeshb0BskRZxPhxPOjqZ+/OqLcxQwEQ==
+
+esbuild-netbsd-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-netbsd-64/-/esbuild-netbsd-64-0.13.15.tgz#a2fedc549c2b629d580a732d840712b08d440038"
+  integrity sha512-3+yE9emwoevLMyvu+iR3rsa+Xwhie7ZEHMGDQ6dkqP/ndFzRHkobHUKTe+NCApSqG5ce2z4rFu+NX/UHnxlh3w==
+
+esbuild-openbsd-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-openbsd-64/-/esbuild-openbsd-64-0.13.15.tgz#b22c0e5806d3a1fbf0325872037f885306b05cd7"
+  integrity sha512-wTfvtwYJYAFL1fSs8yHIdf5GEE4NkbtbXtjLWjM3Cw8mmQKqsg8kTiqJ9NJQe5NX/5Qlo7Xd9r1yKMMkHllp5g==
+
+esbuild-sunos-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-sunos-64/-/esbuild-sunos-64-0.13.15.tgz#d0b6454a88375ee8d3964daeff55c85c91c7cef4"
+  integrity sha512-lbivT9Bx3t1iWWrSnGyBP9ODriEvWDRiweAs69vI+miJoeKwHWOComSRukttbuzjZ8r1q0mQJ8Z7yUsDJ3hKdw==
+
+esbuild-windows-32@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-32/-/esbuild-windows-32-0.13.15.tgz#c96d0b9bbb52f3303322582ef8e4847c5ad375a7"
+  integrity sha512-fDMEf2g3SsJ599MBr50cY5ve5lP1wyVwTe6aLJsM01KtxyKkB4UT+fc5MXQFn3RLrAIAZOG+tHC+yXObpSn7Nw==
+
+esbuild-windows-64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-64/-/esbuild-windows-64-0.13.15.tgz#1f79cb9b1e1bb02fb25cd414cb90d4ea2892c294"
+  integrity sha512-9aMsPRGDWCd3bGjUIKG/ZOJPKsiztlxl/Q3C1XDswO6eNX/Jtwu4M+jb6YDH9hRSUflQWX0XKAfWzgy5Wk54JQ==
+
+esbuild-windows-arm64@0.13.15:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-arm64/-/esbuild-windows-arm64-0.13.15.tgz#482173070810df22a752c686509c370c3be3b3c3"
+  integrity sha512-zzvyCVVpbwQQATaf3IG8mu1IwGEiDxKkYUdA4FpoCHi1KtPa13jeScYDjlW0Qh+ebWzpKfR2ZwvqAQkSWNcKjA==
+
+esbuild@^0.13.12:
+  version "0.13.15"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.13.15.tgz#db56a88166ee373f87dbb2d8798ff449e0450cdf"
+  integrity sha512-raCxt02HBKv8RJxE8vkTSCXGIyKHdEdGfUmiYb8wnabnaEmHzyW7DCHb5tEN0xU8ryqg5xw54mcwnYkC4x3AIw==
+  optionalDependencies:
+    esbuild-android-arm64 "0.13.15"
+    esbuild-darwin-64 "0.13.15"
+    esbuild-darwin-arm64 "0.13.15"
+    esbuild-freebsd-64 "0.13.15"
+    esbuild-freebsd-arm64 "0.13.15"
+    esbuild-linux-32 "0.13.15"
+    esbuild-linux-64 "0.13.15"
+    esbuild-linux-arm "0.13.15"
+    esbuild-linux-arm64 "0.13.15"
+    esbuild-linux-mips64le "0.13.15"
+    esbuild-linux-ppc64le "0.13.15"
+    esbuild-netbsd-64 "0.13.15"
+    esbuild-openbsd-64 "0.13.15"
+    esbuild-sunos-64 "0.13.15"
+    esbuild-windows-32 "0.13.15"
+    esbuild-windows-64 "0.13.15"
+    esbuild-windows-arm64 "0.13.15"
+
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
+escape-string-regexp@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+  integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
+
+estree-walker@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-1.0.1.tgz#31bc5d612c96b704106b477e6dd5d8aa138cb700"
+  integrity sha512-1fMXF3YP4pZZVozF8j/ZLfvnR8NSIljt56UhbZ5PeeDmmGHpgpdwQt7ITlGvYaQukCvuBRMLEiKiYC+oeIg4cg==
+
+estree-walker@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-2.0.2.tgz#52f010178c2a4c117a7757cfe942adb7d2da4cac"
+  integrity sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w==
+
+fs.realpath@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
+  integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
+
+fsevents@~2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"
+  integrity sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==
+
+function-bind@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+  integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
+
+gensync@^1.0.0-beta.2:
+  version "1.0.0-beta.2"
+  resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.2.tgz#32a6ee76c3d7f52d46b2b1ae5d93fea8580a25e0"
+  integrity sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg==
+
+glob@^7.1.6:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.2.0.tgz#d15535af7732e02e948f4c41628bd910293f6023"
+  integrity sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+globals@^11.1.0:
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
+  integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
+
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+  integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
+
+has@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
+  dependencies:
+    function-bind "^1.1.1"
+
+html-entities@2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-2.3.2.tgz#760b404685cb1d794e4f4b744332e3b00dcfe488"
+  integrity sha512-c3Ab/url5ksaT0WyleslpBEthOzWhrjQbg75y7XUsfSzi3Dgzt0l8w5e7DylRn15MTlMMD58dTfzddNS2kcAjQ==
+
+inflight@^1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
+  integrity sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=
+  dependencies:
+    once "^1.3.0"
+    wrappy "1"
+
+inherits@2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
+is-core-module@^2.2.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.8.0.tgz#0321336c3d0925e497fd97f5d95cb114a5ccd548"
+  integrity sha512-vd15qHsaqrRL7dtH6QNuy0ndJmRDrS9HAM1CAiSifNUFv4x1a0CCVsj18hJ1mShxIG6T2i1sO78MkP56r0nYRw==
+  dependencies:
+    has "^1.0.3"
+
+is-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
+  integrity sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=
+
+is-reference@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/is-reference/-/is-reference-1.2.1.tgz#8b2dac0b371f4bc994fdeaba9eb542d03002d0b7"
+  integrity sha512-U82MsXXiFIrjCK4otLT+o2NA2Cd2g5MLoOVXUZjIOhLurrRxpEXzI8O0KZHr3IjLvlAH1kTPYSuqer5T9ZVBKQ==
+  dependencies:
+    "@types/estree" "*"
+
+is-what@^3.14.1:
+  version "3.14.1"
+  resolved "https://registry.yarnpkg.com/is-what/-/is-what-3.14.1.tgz#e1222f46ddda85dead0fd1c9df131760e77755c1"
+  integrity sha512-sNxgpk9793nzSs7bA6JQJGeIuRBQhAaNGG77kzYQgMkrID+lS6SlK07K5LaptscDlSaIgH+GPFzf+d75FVxozA==
+
+js-tokens@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+  integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
+
+jsesc@^2.5.1:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.2.tgz#80564d2e483dacf6e8ef209650a67df3f0c283a4"
+  integrity sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==
+
+json5@^2.1.2:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.0.tgz#2dfefe720c6ba525d9ebd909950f0515316c89a3"
+  integrity sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==
+  dependencies:
+    minimist "^1.2.5"
+
+magic-string@^0.25.7:
+  version "0.25.7"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.25.7.tgz#3f497d6fd34c669c6798dcb821f2ef31f5445051"
+  integrity sha512-4CrMT5DOHTDk4HYDlzmwu4FVCcIYI8gauveasrdCu2IKIFOJ3f0v/8MDGJCDL9oD2ppz/Av1b0Nj345H9M+XIA==
+  dependencies:
+    sourcemap-codec "^1.4.4"
+
+merge-anything@^4.0.1:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/merge-anything/-/merge-anything-4.0.2.tgz#cb61fdd4e0604e254ff571f90869fa1af2d39e7f"
+  integrity sha512-YxLHKgX8jN5xfKIxcwVNzQ2HpS0r9eUSqifgGhVARoZEW31Jwu95OQzX7qlFPBPQdCmNBhCYaqJzOcwAKi2Elg==
+  dependencies:
+    is-what "^3.14.1"
+    ts-toolbelt "^9.6.0"
+
+minimatch@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
+  dependencies:
+    brace-expansion "^1.1.7"
+
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
+mri@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mri/-/mri-1.2.0.tgz#6721480fec2a11a4889861115a48b6cbe7cc8f0b"
+  integrity sha512-tzzskb3bG8LvYGFF/mDTpq3jpI6Q9wc3LEmBaghu+DdCssd1FakN7Bc0hVNmEyGq1bq3RgfkCb3cmQLpNPOroA==
+
+ms@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
+
+nanoid@^3.1.30:
+  version "3.1.30"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.30.tgz#63f93cc548d2a113dc5dfbc63bfa09e2b9b64362"
+  integrity sha512-zJpuPDwOv8D2zq2WRoMe1HsfZthVewpel9CAvTfc/2mBD1uUT/agc5f7GHGWXlYkFvi1mVxe4IjvP2HNrop7nQ==
+
+node-fetch@^2.6.6:
+  version "2.6.6"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.6.tgz#1751a7c01834e8e1697758732e9efb6eeadfaf89"
+  integrity sha512-Z8/6vRlTUChSdIgMa51jxQ4lrw/Jy5SOW10ObaA47/RElsAN2c5Pn8bTgFGWn/ibwzXTE8qwr1Yzx28vsecXEA==
+  dependencies:
+    whatwg-url "^5.0.0"
+
+node-releases@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.1.tgz#3d1d395f204f1f2f29a54358b9fb678765ad2fc5"
+  integrity sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA==
+
+once@^1.3.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
+  dependencies:
+    wrappy "1"
+
+path-is-absolute@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+  integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
+
+path-parse@^1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
+  integrity sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==
+
+picocolors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
+  integrity sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==
+
+picomatch@^2.2.2:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.0.tgz#f1f061de8f6a4bf022892e2d128234fb98302972"
+  integrity sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==
+
+postcss@^8.3.11:
+  version "8.4.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.4.tgz#d53d4ec6a75fd62557a66bb41978bf47ff0c2869"
+  integrity sha512-joU6fBsN6EIer28Lj6GDFoC/5yOZzLCfn0zHAn/MYXI7aPt4m4hK5KC5ovEZXy+lnCjmYIbQWngvju2ddyEr8Q==
+  dependencies:
+    nanoid "^3.1.30"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.1"
+
+resolve@^1.17.0, resolve@^1.19.0, resolve@^1.20.0:
+  version "1.20.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.20.0.tgz#629a013fb3f70755d6f0b7935cc1c2c5378b1975"
+  integrity sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==
+  dependencies:
+    is-core-module "^2.2.0"
+    path-parse "^1.0.6"
+
+rollup-route-manifest@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-route-manifest/-/rollup-route-manifest-1.0.0.tgz#74a7e910694583f1206e62e70b478af74a1a7ce8"
+  integrity sha512-3CmcMmCLAzJDUXiO3z6386/Pt8/k9xTZv8gIHyXI8hYGoAInnYdOsFXiGGzQRMy6TXR1jUZme2qbdwjH2nFMjg==
+  dependencies:
+    route-sort "^1.0.0"
+
+rollup@^2.53.3, rollup@^2.59.0:
+  version "2.61.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.61.0.tgz#ccd927bcd6cc0c78a4689c918627a717977208f4"
+  integrity sha512-teQ+T1mUYbyvGyUavCodiyA9hD4DxwYZJwr/qehZGhs1Z49vsmzelMVYMxGU4ZhGRKxYPupHuz5yzm/wj7VpWA==
+  optionalDependencies:
+    fsevents "~2.3.2"
+
+route-sort@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/route-sort/-/route-sort-1.0.0.tgz#078149c8d2d2de8b8563adf139ec58476835c94b"
+  integrity sha512-SFgmvjoIhp5S4iBEDW3XnbT+7PRuZ55oRuNjY+CDB1SGZkyCG9bqQ3/dhaZTctTBYMAvDxd2Uy9dStuaUfgJqQ==
+
+sade@^1.7.4:
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/sade/-/sade-1.7.4.tgz#ea681e0c65d248d2095c90578c03ca0bb1b54691"
+  integrity sha512-y5yauMD93rX840MwUJr7C1ysLFBgMspsdTo4UVrDg3fXDvtwOyIqykhVAAm6fk/3au77773itJStObgK+LKaiA==
+  dependencies:
+    mri "^1.1.0"
+
+safe-buffer@~5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
+
+semver@^6.3.0:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
+  integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
+
+solid-app-router@^0.1.14:
+  version "0.1.14"
+  resolved "https://registry.yarnpkg.com/solid-app-router/-/solid-app-router-0.1.14.tgz#2ffb1bfbb7db7d9d1cd81be5aec1eb786b961573"
+  integrity sha512-fnX+jCB5sDMbjq3od9qGtQNdlvHP2c6DG5STvMHVXyNuSEN+MdO7WJtZ58OpVpq6zWS4FYeYAh7NMEa7C2CcOA==
+
+solid-js@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/solid-js/-/solid-js-1.2.6.tgz#54e91ecb78bb6cc78efea2f05f979f6aa71b25ef"
+  integrity sha512-NvPHJ5Vj5f+ZJWIioickrC55seovSkDtm5NzSpnoUk3z4tATv0STpy5iuGNEn51ZORUcwpZzrMAtOCGziXU1XA==
+
+solid-meta@^0.27.2:
+  version "0.27.2"
+  resolved "https://registry.yarnpkg.com/solid-meta/-/solid-meta-0.27.2.tgz#873205fb7658bc67207b5feda5e360942fb63bad"
+  integrity sha512-t4rotsA99LMhiSI6C0pfN1fR8+bApl2ouOqIpOgxHtapJ+fgBIv7cVnI3nLMMzjiiML+vb83l9xes6/OLSCNtw==
+
+solid-refresh@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/solid-refresh/-/solid-refresh-0.3.2.tgz#feb0a1a4ebb2b2e8467f6b7fbd5de940e1f4c0f0"
+  integrity sha512-7lg3EjenGoxQvGoZnTD3d480wBxbpAiAsyk0dhoGq6hjcaAQ3vnsBGxvXV0LBTzeQcGmIRz1GeSsw/64YyNr+g==
+  dependencies:
+    "@babel/generator" "^7.16.0"
+    "@babel/helper-module-imports" "^7.16.0"
+    "@babel/types" "^7.16.0"
+
+solid-ssr@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/solid-ssr/-/solid-ssr-1.2.6.tgz#9bcc913051d6e711e82cfc88c6abbbaf2c440239"
+  integrity sha512-129iBio60LT+0xXCB2AEecGmFyxooC9VFnjOGan/fLZnBbLE5I6HGYyFBFc8CvVv/SHzjI+XsEgGj9iQCpw7RQ==
+
+solid-start-vercel@next:
+  version "0.1.0-alpha.45"
+  resolved "https://registry.yarnpkg.com/solid-start-vercel/-/solid-start-vercel-0.1.0-alpha.45.tgz#78859d4845be87f890165b9f6362a80c16ae115c"
+  integrity sha512-VZNGAxBf8sL/8aYEUwpxynur7u+Ul6++nfUsIaqWyfzluQizA6FKqqkLf9K8g453Oi1/WbNjS4dWKgzRF4H+wA==
+  dependencies:
+    "@rollup/plugin-commonjs" "^19.0.1"
+    "@rollup/plugin-json" "^4.1.0"
+    "@rollup/plugin-node-resolve" "^13.0.2"
+    rollup "^2.53.3"
+
+solid-start@next:
+  version "0.1.0-alpha.45"
+  resolved "https://registry.yarnpkg.com/solid-start/-/solid-start-0.1.0-alpha.45.tgz#ac24c933d12ccd22325abe7a30f6bb24ec55bc63"
+  integrity sha512-hrFcMcrpJN5lvnt/Z/EqcP+VT8VeKJ1h4bcs9LVQV6NRuSPlpEmK3Cm5VjM+7RPRBWRcIvtbgtyDJALOnDTm8A==
+  dependencies:
+    node-fetch "^2.6.6"
+    rollup-route-manifest "^1.0.0"
+    sade "^1.7.4"
+    solid-ssr "^1.2.6"
+    vite-plugin-solid "^2.1.4"
+
+source-map-js@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.1.tgz#a1741c131e3c77d048252adfa24e23b908670caf"
+  integrity sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==
+
+source-map@^0.5.0:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+  integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
+
+sourcemap-codec@^1.4.4:
+  version "1.4.8"
+  resolved "https://registry.yarnpkg.com/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz#ea804bd94857402e6992d05a38ef1ae35a9ab4c4"
+  integrity sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==
+
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
+  dependencies:
+    has-flag "^3.0.0"
+
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
+
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+  integrity sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=
+
+ts-toolbelt@^9.6.0:
+  version "9.6.0"
+  resolved "https://registry.yarnpkg.com/ts-toolbelt/-/ts-toolbelt-9.6.0.tgz#50a25426cfed500d4a09bd1b3afb6f28879edfd5"
+  integrity sha512-nsZd8ZeNUzukXPlJmTBwUAuABDe/9qtVDelJeT/qW0ow3ZS3BsQJtNkan1802aM9Uf68/Y8ljw86Hu0h5IUW3w==
+
+vite-plugin-solid@^2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/vite-plugin-solid/-/vite-plugin-solid-2.1.4.tgz#20cc3d03b6dc2c7dc57ee54ccd6da061886f6e6a"
+  integrity sha512-lhEPlDf4PB+KKu5ExaT3zaENqC8shpJ4H74a2R0qbr1MCiFvhE/AooWvIlclpHzBtDK6MmUKv25qSFoSC1EaXQ==
+  dependencies:
+    "@babel/core" "^7.16.0"
+    "@babel/preset-typescript" "^7.16.0"
+    babel-preset-solid "^1.2.6"
+    merge-anything "^4.0.1"
+    solid-js "^1.2.6"
+    solid-refresh "^0.3.2"
+    vite "^2.7.1"
+
+vite@^2.7.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/vite/-/vite-2.7.1.tgz#be50ad13214290ecbebbe5ad389ed423cb5f137e"
+  integrity sha512-TDXXhcu5lyQ6uosK4ZWaOyB4VzOiizk0biitRzDzaEtgSUi8rVYPc4k1xgOjLSf0OuceDJmojFKXHOX9DB1WuQ==
+  dependencies:
+    esbuild "^0.13.12"
+    postcss "^8.3.11"
+    resolve "^1.20.0"
+    rollup "^2.59.0"
+  optionalDependencies:
+    fsevents "~2.3.2"
+
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+  integrity sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE=
+
+whatwg-url@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-5.0.0.tgz#966454e8765462e37644d3626f6742ce8b70965d"
+  integrity sha1-lmRU6HZUYuN2RNNib2dCzotwll0=
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"
+
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+  integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=

examples/umijs/README.md

@@ -1,4 +1,4 @@
-![UmiJS Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/umi.svg)
+![UmiJS Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/umi.svg)
 
 # UmiJS Example
 

examples/vue/README.md

@@ -1,4 +1,4 @@
-![Vue.js Logo](https://github.com/vercel/vercel/blob/master/packages/frameworks/logos/vue.svg)
+![Vue.js Logo](https://github.com/vercel/vercel/blob/main/packages/frameworks/logos/vue.svg)
 
 # Vue.js Example
 

packages/build-utils/package.json

@@ -1,10 +1,10 @@
 {
   "name": "@vercel/build-utils",
-  "version": "2.12.3-canary.38",
+  "version": "2.13.0",
   "license": "MIT",
   "main": "./dist/index.js",
   "types": "./dist/index.d.js",
-  "homepage": "https://github.com/vercel/vercel/blob/master/DEVELOPING_A_RUNTIME.md",
+  "homepage": "https://github.com/vercel/vercel/blob/main/DEVELOPING_A_RUNTIME.md",
   "repository": {
     "type": "git",
     "url": "https://github.com/vercel/vercel.git",
@@ -30,7 +30,7 @@
     "@types/node-fetch": "^2.1.6",
     "@types/semver": "6.0.0",
     "@types/yazl": "^2.4.1",
-    "@vercel/frameworks": "0.5.1-canary.17",
+    "@vercel/frameworks": "0.5.1-canary.19",
     "@vercel/ncc": "0.24.0",
     "aggregate-error": "3.0.1",
     "async-retry": "1.2.3",

packages/build-utils/src/convert-runtime-to-plugin.ts

@@ -3,7 +3,6 @@ import { join, parse, relative, dirname, basename, extname } from 'path';
 import glob from './fs/glob';
 import { normalizePath } from './fs/normalize-path';
 import { FILES_SYMBOL, Lambda } from './lambda';
-import type FileBlob from './file-blob';
 import type { BuildOptions, Files } from './types';
 import { debug, getIgnoreFilter } from '.';
 
@@ -54,7 +53,7 @@ const getSourceFiles = async (workPath: string, ignoreFilter: any) => {
  * @param packageName - the name of the package, for example `vercel-plugin-python`
  * @param ext - the file extension, for example `.py`
  */
-export function convertRuntimeToPlugin(
+export function _experimental_convertRuntimeToPlugin(
   buildRuntime: (options: BuildOptions) => Promise<{ output: Lambda }>,
   packageName: string,
   ext: string
@@ -87,10 +86,10 @@ export function convertRuntimeToPlugin(
 
     const pages: { [key: string]: any } = {};
     const pluginName = packageName.replace('vercel-plugin-', '');
+    const outputPath = join(workPath, '.output');
 
     const traceDir = join(
-      workPath,
-      `.output`,
+      outputPath,
       `inputs`,
       // Legacy Runtimes can only provide API Routes, so that's
       // why we can use this prefix for all of them. Here, we have to
@@ -101,11 +100,7 @@ export function convertRuntimeToPlugin(
 
     await fs.ensureDir(traceDir);
 
-    let newPathsRuntime: Set<string> = new Set();
-    let linkersRuntime: Array<Promise<void>> = [];
-
-    const entryDir = join('.output', 'server', 'pages');
-    const entryRoot = join(workPath, entryDir);
+    const entryRoot = join(outputPath, 'server', 'pages');
 
     for (const entrypoint of Object.keys(entrypoints)) {
       const { output } = await buildRuntime({
@@ -121,17 +116,6 @@ export function convertRuntimeToPlugin(
         },
       });
 
-      // Legacy Runtimes tend to pollute the `workPath` with compiled results,
-      // because the `workPath` used to be a place that was a place where they could
-      // just put anything, but nowadays it's the working directory of the `vercel build`
-      // command, which is the place where the developer keeps their source files,
-      // so we don't want to pollute this space unnecessarily. That means we have to clean
-      // up files that were created by the build, which is done further below.
-      const sourceFilesAfterBuild = await getSourceFiles(
-        workPath,
-        ignoreFilter
-      );
-
       // @ts-ignore This symbol is a private API
       const lambdaFiles: Files = output[FILES_SYMBOL];
 
@@ -147,6 +131,7 @@ export function convertRuntimeToPlugin(
 
       let handlerFileBase = output.handler;
       let handlerFile = lambdaFiles[handlerFileBase];
+      let handlerHasImport = false;
 
       const { handler } = output;
       const handlerMethod = handler.split('.').pop();
@@ -160,6 +145,7 @@ export function convertRuntimeToPlugin(
       if (!handlerFile) {
         handlerFileBase = handlerFileName + ext;
         handlerFile = lambdaFiles[handlerFileBase];
+        handlerHasImport = true;
       }
 
       if (!handlerFile || !handlerFile.fsPath) {
@@ -174,143 +160,115 @@ export function convertRuntimeToPlugin(
       const entryPath = join(dirname(entrypoint), entryBase);
       const entry = join(entryRoot, entryPath);
 
-      // We never want to link here, only copy, because the launcher
-      // file often has the same name for every entrypoint, which means that
-      // every build for every entrypoint overwrites the launcher of the previous
-      // one, so linking would end with a broken reference.
+      // Create the parent directory of the API Route that will be created
+      // for the current entrypoint inside of `.output/server/pages/api`.
       await fs.ensureDir(dirname(entry));
-      await fs.copy(handlerFile.fsPath, entry);
 
-      const newFilesEntrypoint: Array<string> = [];
-      const newDirectoriesEntrypoint: Array<string> = [];
+      // For compiled languages, the launcher file will be binary and therefore
+      // won't try to import a user-provided request handler (instead, it will
+      // contain it). But for interpreted languages, the launcher might try to
+      // load a user-provided request handler from the source file instead of bundling
+      // it, so we have to adjust the import statement inside the launcher to point
+      // to the respective source file. Previously, Legacy Runtimes simply expected
+      // the user-provided request-handler to be copied right next to the launcher,
+      // but with the new File System API, files won't be moved around unnecessarily.
+      if (handlerHasImport) {
+        const { fsPath } = handlerFile;
+        const encoding = 'utf-8';
 
-      const preBuildFiles = Object.values(sourceFilesPreBuild).map(file => {
-        return file.fsPath;
-      });
+        // This is the true directory of the user-provided request handler in the
+        // source files, so that's what we will use as an import path in the launcher.
+        const locationPrefix = relative(entry, outputPath);
 
-      // Generate a list of directories and files that weren't present
-      // before the entrypoint was processed by the Legacy Runtime, so
-      // that we can perform a cleanup later. We need to divide into files
-      // and directories because only cleaning up files might leave empty
-      // directories, and listing directories separately also speeds up the
-      // build because we can just delete them, which wipes all of their nested
-      // paths, instead of iterating through all files that should be deleted.
-      for (const file in sourceFilesAfterBuild) {
-        if (!sourceFilesPreBuild[file]) {
-          const path = sourceFilesAfterBuild[file].fsPath;
-          const dirPath = dirname(path);
+        let handlerContent = await fs.readFile(fsPath, encoding);
 
-          // If none of the files that were present before the entrypoint
-          // was processed are contained within the directory we're looking
-          // at right now, then we know it's a newly added directory
-          // and it can therefore be removed later on.
-          const isNewDir = !preBuildFiles.some(filePath => {
-            return dirname(filePath).startsWith(dirPath);
-          });
+        const importPaths = [
+          // This is the full entrypoint path, like `./api/test.py`. In our tests
+          // Python didn't support importing from a parent directory without using different
+          // code in the launcher that registers it as a location for modules and then changing
+          // the importing syntax, but continuing to import it like before seems to work. If
+          // other languages need this, we should consider excluding Python explicitly.
+          // `./${entrypoint}`,
 
-          // Check out the list of tracked directories that were
-          // newly added and see if one of them contains the path
-          // we're looking at.
-          const hasParentDir = newDirectoriesEntrypoint.some(dir => {
-            return path.startsWith(dir);
-          });
+          // This is the entrypoint path without extension, like `api/test`
+          entrypoint.slice(0, -ext.length),
+        ];
 
-          // If we have already tracked a directory that was newly
-          // added that sits above the file or directory that we're
-          // looking at, we don't need to add more entries to the list
-          // because when the parent will get removed in the future,
-          // all of its children (and therefore the path we're looking at)
-          // will automatically get removed anyways.
-          if (hasParentDir) {
-            continue;
-          }
+        // Generate a list of regular expressions that we can use for
+        // finding matches, but only allow matches if the import path is
+        // wrapped inside single (') or double quotes (").
+        const patterns = importPaths.map(path => {
+          // eslint-disable-next-line no-useless-escape
+          return new RegExp(`('|")(${path.replace(/\./g, '\\.')})('|")`, 'g');
+        });
 
-          if (isNewDir) {
-            newDirectoriesEntrypoint.push(dirPath);
-          } else {
-            newFilesEntrypoint.push(path);
-          }
-        }
-      }
+        let replacedMatch = null;
 
-      const tracedFiles: {
-        absolutePath: string;
-        relativePath: string;
-      }[] = [];
+        for (const pattern of patterns) {
+          const newContent = handlerContent.replace(
+            pattern,
+            (_, p1, p2, p3) => {
+              return `${p1}${join(locationPrefix, p2)}${p3}`;
+            }
+          );
 
-      const linkers = Object.entries(lambdaFiles).map(
-        async ([relPath, file]) => {
-          const newPath = join(traceDir, relPath);
-
-          // The handler was already moved into position above.
-          if (relPath === handlerFileBase) {
-            return;
-          }
-
-          tracedFiles.push({ absolutePath: newPath, relativePath: relPath });
-          const { fsPath, type } = file;
-
-          if (fsPath) {
-            await fs.ensureDir(dirname(newPath));
-
-            const isNewFile = newFilesEntrypoint.includes(fsPath);
-
-            const isInsideNewDirectory = newDirectoriesEntrypoint.some(
-              dirPath => {
-                return fsPath.startsWith(dirPath);
-              }
+          if (newContent !== handlerContent) {
+            debug(
+              `Replaced "${pattern}" inside "${entry}" to ensure correct import of user-provided request handler`
             );
 
-            // With this, we're making sure that files in the `workPath` that existed
-            // before the Legacy Runtime was invoked (source files) are linked from
-            // `.output` instead of copying there (the latter only happens if linking fails),
-            // which is the fastest solution. However, files that are created fresh
-            // by the Legacy Runtimes are always copied, because their link destinations
-            // are likely to be overwritten every time an entrypoint is processed by
-            // the Legacy Runtime. This is likely to overwrite the destination on subsequent
-            // runs, but that's also how `workPath` used to work originally, without
-            // the File System API (meaning that there was one `workPath` for all entrypoints).
-            if (isNewFile || isInsideNewDirectory) {
-              debug(`Copying from ${fsPath} to ${newPath}`);
-              await fs.copy(fsPath, newPath);
-            } else {
-              await linkOrCopy(fsPath, newPath);
-            }
-          } else if (type === 'FileBlob') {
-            const { data, mode } = file as FileBlob;
-            await fs.writeFile(newPath, data, { mode });
-          } else {
-            throw new Error(`Unknown file type: ${type}`);
+            handlerContent = newContent;
+            replacedMatch = true;
           }
         }
-      );
 
-      linkersRuntime = linkersRuntime.concat(linkers);
+        if (!replacedMatch) {
+          new Error(
+            `No replacable matches for "${importPaths[0]}" or "${importPaths[1]}" found in "${fsPath}"`
+          );
+        }
+
+        await fs.writeFile(entry, handlerContent, encoding);
+      } else {
+        await fs.copy(handlerFile.fsPath, entry);
+      }
+
+      // Legacy Runtimes based on interpreted languages will create a new launcher file
+      // for every entrypoint, but they will create each one inside `workPath`, which means that
+      // the launcher for one entrypoint will overwrite the launcher provided for the previous
+      // entrypoint. That's why, above, we copy the file contents into the new destination (and
+      // optionally transform them along the way), instead of linking. We then also want to remove
+      // the copy origin right here, so that the `workPath` doesn't contain a useless launcher file
+      // once the build has finished running.
+      await fs.remove(handlerFile.fsPath);
+      debug(`Removed temporary file "${handlerFile.fsPath}"`);
 
       const nft = `${entry}.nft.json`;
 
       const json = JSON.stringify({
-        version: 1,
-        files: tracedFiles.map(file => ({
-          input: normalizePath(relative(dirname(nft), file.absolutePath)),
-          // We'd like to place all the dependency files right next
-          // to the final launcher file inside of the Lambda.
-          output: normalizePath(join(entryDir, 'api', file.relativePath)),
-        })),
+        version: 2,
+        files: Object.keys(lambdaFiles)
+          .map(file => {
+            const { fsPath } = lambdaFiles[file];
+
+            if (!fsPath) {
+              throw new Error(
+                `File "${file}" is missing valid \`fsPath\` property`
+              );
+            }
+
+            // The handler was already moved into position above.
+            if (file === handlerFileBase) {
+              return;
+            }
+
+            return normalizePath(relative(dirname(nft), fsPath));
+          })
+          .filter(Boolean),
       });
 
-      await fs.ensureDir(dirname(nft));
       await fs.writeFile(nft, json);
 
-      // Extend the list of directories and files that were created by the
-      // Legacy Runtime with the list of directories and files that were
-      // created for the entrypoint that was just processed above.
-      newPathsRuntime = new Set([
-        ...newPathsRuntime,
-        ...newFilesEntrypoint,
-        ...newDirectoriesEntrypoint,
-      ]);
-
       // Add an entry that will later on be added to the `functions-manifest.json`
       // file that is placed inside of the `.output` directory.
       pages[normalizePath(entryPath)] = {
@@ -327,42 +285,12 @@ export function convertRuntimeToPlugin(
       };
     }
 
-    // Instead of of waiting for all of the linking to be done for every
-    // entrypoint before processing the next one, we immediately handle all
-    // of them one after the other, while then waiting for the linking
-    // to finish right here, before we clean up newly created files below.
-    await Promise.all(linkersRuntime);
-
-    // A list of all the files that were created by the Legacy Runtime,
-    // which we'd like to remove from the File System.
-    const toRemove = Array.from(newPathsRuntime).map(path => {
-      debug(`Removing ${path} as part of cleanup`);
-      return fs.remove(path);
-    });
-
-    // Once all the entrypoints have been processed, we'd like to
-    // remove all the files from `workPath` that originally weren't present
-    // before the Legacy Runtime began running, because the `workPath`
-    // is nowadays the directory in which the user keeps their source code, since
-    // we're no longer running separate parallel builds for every Legacy Runtime.
-    await Promise.all(toRemove);
-
     // Add any Serverless Functions that were exposed by the Legacy Runtime
     // to the `functions-manifest.json` file provided in `.output`.
-    await updateFunctionsManifest({ workPath, pages });
+    await _experimental_updateFunctionsManifest({ workPath, pages });
   };
 }
 
-async function linkOrCopy(existingPath: string, newPath: string) {
-  try {
-    await fs.createLink(existingPath, newPath);
-  } catch (err: any) {
-    if (err.code !== 'EEXIST') {
-      await fs.copyFile(existingPath, newPath);
-    }
-  }
-}
-
 async function readJson(filePath: string): Promise<{ [key: string]: any }> {
   try {
     const str = await fs.readFile(filePath, 'utf8');
@@ -379,7 +307,7 @@ async function readJson(filePath: string): Promise<{ [key: string]: any }> {
  * If `.output/functions-manifest.json` exists, append to the pages
  * property. Otherwise write a new file.
  */
-export async function updateFunctionsManifest({
+export async function _experimental_updateFunctionsManifest({
   workPath,
   pages,
 }: {
@@ -393,7 +321,7 @@ export async function updateFunctionsManifest({
   );
   const functionsManifest = await readJson(functionsManifestPath);
 
-  if (!functionsManifest.version) functionsManifest.version = 1;
+  if (!functionsManifest.version) functionsManifest.version = 2;
   if (!functionsManifest.pages) functionsManifest.pages = {};
 
   for (const [pageKey, pageConfig] of Object.entries(pages)) {
@@ -407,7 +335,7 @@ export async function updateFunctionsManifest({
  * Append routes to the `routes-manifest.json` file.
  * If the file does not exist, it will be created.
  */
-export async function updateRoutesManifest({
+export async function _experimental_updateRoutesManifest({
   workPath,
   redirects,
   rewrites,

packages/build-utils/src/detect-builders.ts

@@ -3,7 +3,13 @@ import { valid as validSemver } from 'semver';
 import { parse as parsePath, extname } from 'path';
 import { Route, Source } from '@vercel/routing-utils';
 import frameworkList, { Framework } from '@vercel/frameworks';
-import { PackageJson, Builder, Config, BuilderFunctions } from './types';
+import {
+  PackageJson,
+  Builder,
+  Config,
+  BuilderFunctions,
+  ProjectSettings,
+} from './types';
 import { isOfficialRuntime } from './';
 const slugToFramework = new Map<string | null, Framework>(
   frameworkList.map(f => [f.slug, f])
@@ -20,14 +26,7 @@ interface Options {
   tag?: 'canary' | 'latest' | string;
   functions?: BuilderFunctions;
   ignoreBuildScript?: boolean;
-  projectSettings?: {
-    framework?: string | null;
-    devCommand?: string | null;
-    installCommand?: string | null;
-    buildCommand?: string | null;
-    outputDirectory?: string | null;
-    createdAt?: number;
-  };
+  projectSettings?: ProjectSettings;
   cleanUrls?: boolean;
   trailingSlash?: boolean;
   featHandleMiss?: boolean;

packages/build-utils/src/detect-file-system-api.ts

@@ -0,0 +1,237 @@
+import semver from 'semver';
+import { isOfficialRuntime } from './';
+import type {
+  Builder,
+  BuilderFunctions,
+  PackageJson,
+  ProjectSettings,
+} from './types';
+
+interface Metadata {
+  plugins: string[];
+  hasDotOutput: boolean;
+  hasMiddleware: boolean;
+}
+
+const enableFileSystemApiFrameworks = new Set(['solidstart']);
+
+/**
+ * If the Deployment can be built with the new File System API,
+ * return the new Builder. Otherwise an "Exclusion Condition"
+ * was hit so return `null` builder with a `reason` for exclusion.
+ */
+export async function detectFileSystemAPI({
+  files,
+  projectSettings,
+  builders,
+  vercelConfig,
+  pkg,
+  tag,
+  enableFlag = false,
+}: {
+  files: { [relPath: string]: any };
+  projectSettings: ProjectSettings;
+  builders: Builder[];
+  vercelConfig:
+    | { builds?: Builder[]; functions?: BuilderFunctions }
+    | null
+    | undefined;
+  pkg: PackageJson | null | undefined;
+  tag: string | undefined;
+  enableFlag: boolean | undefined;
+}): Promise<
+  | { metadata: Metadata; fsApiBuilder: Builder; reason: null }
+  | { metadata: Metadata; fsApiBuilder: null; reason: string }
+> {
+  const framework = projectSettings.framework || '';
+  const deps = Object.assign({}, pkg?.dependencies, pkg?.devDependencies);
+  const plugins = Object.keys(deps).filter(dep =>
+    dep.startsWith('vercel-plugin-')
+  );
+  const hasDotOutput = Object.keys(files).some(file =>
+    file.startsWith('.output/')
+  );
+  const hasMiddleware = Boolean(
+    files['_middleware.js'] || files['_middleware.ts']
+  );
+
+  const metadata: Metadata = {
+    plugins,
+    hasDotOutput,
+    hasMiddleware,
+  };
+
+  const isEnabled =
+    enableFlag ||
+    hasMiddleware ||
+    hasDotOutput ||
+    enableFileSystemApiFrameworks.has(framework);
+  if (!isEnabled) {
+    return { metadata, fsApiBuilder: null, reason: 'Flag not enabled.' };
+  }
+
+  if (vercelConfig?.builds && vercelConfig.builds.length > 0) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason:
+        'Detected `builds` in vercel.json. Please remove it in favor of CLI plugins.',
+    };
+  }
+
+  if (Object.values(vercelConfig?.functions || {}).some(fn => !!fn.runtime)) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason:
+        'Detected `functions.runtime` in vercel.json. Please remove it in favor of CLI plugins.',
+    };
+  }
+
+  if (process.env.HUGO_VERSION) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason: 'Detected `HUGO_VERSION` environment variable. Please remove it.',
+    };
+  }
+
+  if (process.env.ZOLA_VERSION) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason: 'Detected `ZOLA_VERSION` environment variable. Please remove it.',
+    };
+  }
+
+  if (process.env.GUTENBERG_VERSION) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason:
+        'Detected `GUTENBERG_VERSION` environment variable. Please remove it.',
+    };
+  }
+
+  const invalidBuilder = builders.find(({ use }) => {
+    const valid =
+      isOfficialRuntime('go', use) ||
+      isOfficialRuntime('python', use) ||
+      isOfficialRuntime('ruby', use) ||
+      isOfficialRuntime('node', use) ||
+      isOfficialRuntime('next', use) ||
+      isOfficialRuntime('static', use) ||
+      isOfficialRuntime('static-build', use);
+    return !valid;
+  });
+
+  if (invalidBuilder) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason: `Detected \`${invalidBuilder.use}\` in vercel.json. Please remove it in favor of CLI plugins.`,
+    };
+  }
+
+  for (const lang of ['go', 'python', 'ruby']) {
+    for (const { use } of builders) {
+      const plugin = 'vercel-plugin-' + lang;
+      if (isOfficialRuntime(lang, use) && !deps[plugin]) {
+        return {
+          metadata,
+          fsApiBuilder: null,
+          reason: `Detected \`${lang}\` Serverless Function usage without plugin \`${plugin}\`. Please run \`npm i ${plugin}\`.`,
+        };
+      }
+    }
+  }
+
+  if (
+    framework === 'nuxtjs' ||
+    framework === 'sveltekit' ||
+    framework === 'redwoodjs'
+  ) {
+    return {
+      metadata,
+      fsApiBuilder: null,
+      reason: `Detected framework \`${framework}\` that only supports legacy File System API. Please contact the framework author.`,
+    };
+  }
+
+  if (framework === 'nextjs' && !hasDotOutput) {
+    // Use the old pipeline if a custom output directory was specified for Next.js
+    // because `vercel build` cannot ensure that the directory will be in the same
+    // location as `.output`, which can break imports (not just nft.json files).
+    if (projectSettings?.outputDirectory) {
+      return {
+        metadata,
+        fsApiBuilder: null,
+        reason: `Detected Next.js with Output Directory \`${projectSettings.outputDirectory}\` override. Please change it back to the default.`,
+      };
+    }
+    const nextVersion = deps['next'];
+    if (!nextVersion) {
+      return {
+        metadata,
+        fsApiBuilder: null,
+        reason: `Detected Next.js in Project Settings but missing \`next\` package.json dependencies. Please run \`npm i next\`.`,
+      };
+    }
+
+    // TODO: Read version from lockfile instead of package.json
+    if (nextVersion !== 'latest' && nextVersion !== 'canary') {
+      const fixedVersion = semver.valid(semver.coerce(nextVersion) || '');
+
+      if (!fixedVersion || !semver.gte(fixedVersion, '12.0.0')) {
+        return {
+          metadata,
+          fsApiBuilder: null,
+          reason: `Detected legacy Next.js version "${nextVersion}" in package.json. Please run \`npm i next@latest\` to upgrade.`,
+        };
+      }
+    }
+  }
+
+  if (!hasDotOutput) {
+    // TODO: Read version from lockfile instead of package.json
+    const vercelCliVersion = deps['vercel'];
+    if (
+      vercelCliVersion &&
+      vercelCliVersion !== 'latest' &&
+      vercelCliVersion !== 'canary'
+    ) {
+      const fixedVersion = semver.valid(semver.coerce(vercelCliVersion) || '');
+      // TODO: we might want to use '24.0.0' once its released
+      if (!fixedVersion || !semver.gte(fixedVersion, '23.1.3-canary.68')) {
+        return {
+          metadata,
+          fsApiBuilder: null,
+          reason: `Detected legacy Vercel CLI version "${vercelCliVersion}" in package.json. Please run \`npm i vercel@latest\` to upgrade.`,
+        };
+      }
+    }
+  }
+
+  const frontendBuilder = builders.find(
+    ({ use }) =>
+      isOfficialRuntime('next', use) ||
+      isOfficialRuntime('static', use) ||
+      isOfficialRuntime('static-build', use)
+  );
+  const config = frontendBuilder?.config || {};
+  const withTag = tag ? `@${tag}` : '';
+
+  const fsApiBuilder = {
+    use: `@vercelruntimes/file-system-api${withTag}`,
+    src: '**',
+    config: {
+      ...config,
+      fileSystemAPI: true,
+      framework: config.framework || framework || null,
+      projectSettings,
+      hasMiddleware,
+      hasDotOutput,
+    },
+  };
+  return { metadata, fsApiBuilder, reason: null };
+}

packages/build-utils/src/index.ts

@@ -1,4 +1,3 @@
-import { createHash } from 'crypto';
 import FileBlob from './file-blob';
 import FileFsRef from './file-fs-ref';
 import FileRef from './file-ref';
@@ -81,14 +80,15 @@ export {
   detectApiDirectory,
   detectApiExtensions,
 } from './detect-builders';
+export { detectFileSystemAPI } from './detect-file-system-api';
 export { detectFramework } from './detect-framework';
 export { DetectorFilesystem } from './detectors/filesystem';
 export { readConfigFile } from './fs/read-config-file';
 export { normalizePath } from './fs/normalize-path';
 export {
-  convertRuntimeToPlugin,
-  updateFunctionsManifest,
-  updateRoutesManifest,
+  _experimental_convertRuntimeToPlugin,
+  _experimental_updateFunctionsManifest,
+  _experimental_updateRoutesManifest,
 } from './convert-runtime-to-plugin';
 
 export * from './schemas';
@@ -135,11 +135,3 @@ export const getPlatformEnv = (name: string): string | undefined => {
   }
   return n;
 };
-
-/**
- * Helper function for generating file or directories names in `.output/inputs`
- * for dependencies of files provided to the File System API.
- */
-export const getInputHash = (source: Buffer | string): string => {
-  return createHash('sha1').update(source).digest('hex');
-};

packages/build-utils/src/types.ts

@@ -29,7 +29,9 @@ export interface Config {
     | number
     | { [key: string]: string }
     | BuilderFunctions
-    | undefined;
+    | ProjectSettings
+    | undefined
+    | null;
   maxLambdaSize?: string;
   includeFiles?: string | string[];
   excludeFiles?: string | string[];
@@ -41,11 +43,12 @@ export interface Config {
   zeroConfig?: boolean;
   import?: { [key: string]: string };
   functions?: BuilderFunctions;
+  projectSettings?: ProjectSettings;
   outputDirectory?: string;
   installCommand?: string;
   buildCommand?: string;
   devCommand?: string;
-  framework?: string;
+  framework?: string | null;
   nodeVersion?: string;
 }
 
@@ -351,3 +354,17 @@ export interface BuilderFunctions {
     excludeFiles?: string;
   };
 }
+
+export interface ProjectSettings {
+  framework?: string | null;
+  devCommand?: string | null;
+  installCommand?: string | null;
+  buildCommand?: string | null;
+  outputDirectory?: string | null;
+  rootDirectory?: string | null;
+  createdAt?: number;
+  autoExposeSystemEnvs?: boolean;
+  sourceFilesOutsideRootDirectory?: boolean;
+  directoryListing?: boolean;
+  gitForkProtection?: boolean;
+}

packages/build-utils/test/unit.convert-runtime-to-plugin.test.ts

@@ -1,7 +1,7 @@
 import { join } from 'path';
 import fs from 'fs-extra';
 import { BuildOptions, createLambda, FileFsRef } from '../src';
-import { convertRuntimeToPlugin } from '../src/convert-runtime-to-plugin';
+import { _experimental_convertRuntimeToPlugin } from '../src/convert-runtime-to-plugin';
 
 async function fsToJson(dir: string, output: Record<string, any> = {}) {
   const files = await fs.readdir(dir);
@@ -62,22 +62,19 @@ describe('convert-runtime-to-plugin', () => {
       return { output: lambda };
     };
 
-    const lambdaFiles = await fsToJson(workPath);
     const packageName = 'vercel-plugin-python';
-    const build = await convertRuntimeToPlugin(buildRuntime, packageName, ext);
+    const build = await _experimental_convertRuntimeToPlugin(
+      buildRuntime,
+      packageName,
+      ext
+    );
 
     await build({ workPath });
 
     const output = await fsToJson(join(workPath, '.output'));
 
-    delete lambdaFiles['vercel.json'];
-    delete lambdaFiles['vc__handler__python.py'];
-
     expect(output).toMatchObject({
       'functions-manifest.json': expect.stringContaining('{'),
-      inputs: {
-        'api-routes-python': lambdaFiles,
-      },
       server: {
         pages: {
           api: {
@@ -96,7 +93,7 @@ describe('convert-runtime-to-plugin', () => {
 
     const funcManifest = JSON.parse(output['functions-manifest.json']);
     expect(funcManifest).toMatchObject({
-      version: 1,
+      version: 2,
       pages: {
         'api/index.py': { ...lambdaOptions, handler: 'index.vc_handler' },
         'api/users/get.py': { ...lambdaOptions, handler: 'get.vc_handler' },
@@ -110,40 +107,16 @@ describe('convert-runtime-to-plugin', () => {
 
     const indexJson = JSON.parse(output.server.pages.api['index.py.nft.json']);
     expect(indexJson).toMatchObject({
-      version: 1,
+      version: 2,
       files: [
-        {
-          input: `../../../inputs/api-routes-python/api/db/[id].py`,
-          output: '.output/server/pages/api/api/db/[id].py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/api/index.py`,
-          output: '.output/server/pages/api/api/index.py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/api/project/[aid]/[bid]/index.py`,
-          output: '.output/server/pages/api/api/project/[aid]/[bid]/index.py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/api/users/get.py`,
-          output: '.output/server/pages/api/api/users/get.py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/api/users/post.py`,
-          output: '.output/server/pages/api/api/users/post.py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/file.txt`,
-          output: '.output/server/pages/api/file.txt',
-        },
-        {
-          input: `../../../inputs/api-routes-python/util/date.py`,
-          output: '.output/server/pages/api/util/date.py',
-        },
-        {
-          input: `../../../inputs/api-routes-python/util/math.py`,
-          output: '.output/server/pages/api/util/math.py',
-        },
+        '../../../../api/db/[id].py',
+        '../../../../api/index.py',
+        '../../../../api/project/[aid]/[bid]/index.py',
+        '../../../../api/users/get.py',
+        '../../../../api/users/post.py',
+        '../../../../file.txt',
+        '../../../../util/date.py',
+        '../../../../util/math.py',
       ],
     });
 
@@ -151,40 +124,16 @@ describe('convert-runtime-to-plugin', () => {
       output.server.pages.api.users['get.py.nft.json']
     );
     expect(getJson).toMatchObject({
-      version: 1,
+      version: 2,
       files: [
-        {
-          input: `../../../../inputs/api-routes-python/api/db/[id].py`,
-          output: '.output/server/pages/api/api/db/[id].py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/index.py`,
-          output: '.output/server/pages/api/api/index.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/project/[aid]/[bid]/index.py`,
-          output: '.output/server/pages/api/api/project/[aid]/[bid]/index.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/users/get.py`,
-          output: '.output/server/pages/api/api/users/get.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/users/post.py`,
-          output: '.output/server/pages/api/api/users/post.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/file.txt`,
-          output: '.output/server/pages/api/file.txt',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/util/date.py`,
-          output: '.output/server/pages/api/util/date.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/util/math.py`,
-          output: '.output/server/pages/api/util/math.py',
-        },
+        '../../../../../api/db/[id].py',
+        '../../../../../api/index.py',
+        '../../../../../api/project/[aid]/[bid]/index.py',
+        '../../../../../api/users/get.py',
+        '../../../../../api/users/post.py',
+        '../../../../../file.txt',
+        '../../../../../util/date.py',
+        '../../../../../util/math.py',
       ],
     });
 
@@ -192,40 +141,16 @@ describe('convert-runtime-to-plugin', () => {
       output.server.pages.api.users['post.py.nft.json']
     );
     expect(postJson).toMatchObject({
-      version: 1,
+      version: 2,
       files: [
-        {
-          input: `../../../../inputs/api-routes-python/api/db/[id].py`,
-          output: '.output/server/pages/api/api/db/[id].py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/index.py`,
-          output: '.output/server/pages/api/api/index.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/project/[aid]/[bid]/index.py`,
-          output: '.output/server/pages/api/api/project/[aid]/[bid]/index.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/users/get.py`,
-          output: '.output/server/pages/api/api/users/get.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/api/users/post.py`,
-          output: '.output/server/pages/api/api/users/post.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/file.txt`,
-          output: '.output/server/pages/api/file.txt',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/util/date.py`,
-          output: '.output/server/pages/api/util/date.py',
-        },
-        {
-          input: `../../../../inputs/api-routes-python/util/math.py`,
-          output: '.output/server/pages/api/util/math.py',
-        },
+        '../../../../../api/db/[id].py',
+        '../../../../../api/index.py',
+        '../../../../../api/project/[aid]/[bid]/index.py',
+        '../../../../../api/users/get.py',
+        '../../../../../api/users/post.py',
+        '../../../../../file.txt',
+        '../../../../../util/date.py',
+        '../../../../../util/math.py',
       ],
     });
 

packages/build-utils/test/unit.detect-file-system-api.test.ts

@@ -0,0 +1,445 @@
+import { detectFileSystemAPI } from '../src/detect-file-system-api';
+
+describe('Test `detectFileSystemAPI`', () => {
+  it('should error when builds in vercel.json', async () => {
+    const vercelConfig = {
+      builds: [{ use: '@vercel/node', src: 'api/**/*.js' }],
+    };
+    const files = {
+      'vercel.json': JSON.stringify(vercelConfig),
+      'api/foo.js': 'console.log("foo")',
+    };
+    const result = await detectFileSystemAPI({
+      files,
+      projectSettings: {},
+      builders: vercelConfig.builds,
+      vercelConfig,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `builds` in vercel.json. Please remove it in favor of CLI plugins.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when functions.runtimes in vercel.json', async () => {
+    const vercelConfig = {
+      functions: {
+        'api/**/*.rs': {
+          runtime: 'vercel-rust@latest',
+        },
+      },
+    };
+    const files = {
+      'vercel.json': JSON.stringify(vercelConfig),
+      'api/foo.rs': 'println!("foo")',
+    };
+    const result = await detectFileSystemAPI({
+      files,
+      projectSettings: {},
+      builders: [],
+      vercelConfig,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `functions.runtime` in vercel.json. Please remove it in favor of CLI plugins.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when HUGO_VERSION env var used', async () => {
+    process.env.HUGO_VERSION = 'v0.58.2';
+    const files = { 'foo.html': '<h1>Foo</h1>' };
+    const result = await detectFileSystemAPI({
+      files,
+      projectSettings: {},
+      builders: [],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason: 'Detected `HUGO_VERSION` environment variable. Please remove it.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+    delete process.env.HUGO_VERSION;
+  });
+
+  it('should error when ZOLA_VERSION env var used', async () => {
+    process.env.ZOLA_VERSION = 'v0.0.1';
+    const files = { 'foo.html': '<h1>Foo</h1>' };
+    const result = await detectFileSystemAPI({
+      files,
+      projectSettings: {},
+      builders: [],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason: 'Detected `ZOLA_VERSION` environment variable. Please remove it.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+    delete process.env.ZOLA_VERSION;
+  });
+
+  it('should error when GUTENBERG_VERSION env var used', async () => {
+    process.env.GUTENBERG_VERSION = 'v0.0.1';
+    const files = { 'foo.html': '<h1>Foo</h1>' };
+    const result = await detectFileSystemAPI({
+      files,
+      projectSettings: {},
+      builders: [],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `GUTENBERG_VERSION` environment variable. Please remove it.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+    delete process.env.GUTENBERG_VERSION;
+  });
+
+  it('should error when Go detected without corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.go': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/go', src: 'api/**/*.go' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `go` Serverless Function usage without plugin `vercel-plugin-go`. Please run `npm i vercel-plugin-go`.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when Python detected without corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.py': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/python', src: 'api/**/*.py' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `python` Serverless Function usage without plugin `vercel-plugin-python`. Please run `npm i vercel-plugin-python`.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when Ruby detected without corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.rb': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/ruby', src: 'api/**/*.rb' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected `ruby` Serverless Function usage without plugin `vercel-plugin-ruby`. Please run `npm i vercel-plugin-ruby`.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should succeed when Go detected with corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.go': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/go', src: 'api/**/*.go' }],
+      vercelConfig: null,
+      pkg: { dependencies: { 'vercel-plugin-go': '^1.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: {
+        use: '@vercelruntimes/file-system-api',
+        src: '**',
+        config: {
+          fileSystemAPI: true,
+          framework: null,
+          hasDotOutput: false,
+          hasMiddleware: false,
+          projectSettings: {},
+        },
+      },
+      reason: null,
+      metadata: {
+        hasDotOutput: false,
+        hasMiddleware: false,
+        plugins: ['vercel-plugin-go'],
+      },
+    });
+  });
+
+  it('should succeed when Python detected with corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.py': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/python', src: 'api/**/*.py' }],
+      vercelConfig: null,
+      pkg: { dependencies: { 'vercel-plugin-python': '^1.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: {
+        use: '@vercelruntimes/file-system-api',
+        src: '**',
+        config: {
+          fileSystemAPI: true,
+          framework: null,
+          hasDotOutput: false,
+          hasMiddleware: false,
+          projectSettings: {},
+        },
+      },
+      reason: null,
+      metadata: {
+        hasDotOutput: false,
+        hasMiddleware: false,
+        plugins: ['vercel-plugin-python'],
+      },
+    });
+  });
+
+  it('should succeed when Ruby detected with corresponding plugin', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.rb': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/ruby', src: 'api/**/*.rb' }],
+      vercelConfig: null,
+      pkg: { dependencies: { 'vercel-plugin-ruby': '^1.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: {
+        use: '@vercelruntimes/file-system-api',
+        src: '**',
+        config: {
+          fileSystemAPI: true,
+          framework: null,
+          hasDotOutput: false,
+          hasMiddleware: false,
+          projectSettings: {},
+        },
+      },
+      reason: null,
+      metadata: {
+        hasDotOutput: false,
+        hasMiddleware: false,
+        plugins: ['vercel-plugin-ruby'],
+      },
+    });
+  });
+
+  it('should error when framework is nuxtjs', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'nuxtjs' },
+      builders: [{ use: '@vercel/node', src: 'api/**/*.js' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected framework `nuxtjs` that only supports legacy File System API. Please contact the framework author.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when framework is sveltekit', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'sveltekit' },
+      builders: [{ use: '@vercel/node', src: 'api/**/*.js' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected framework `sveltekit` that only supports legacy File System API. Please contact the framework author.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when framework is redwoodjs', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'api/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'redwoodjs' },
+      builders: [{ use: '@vercel/node', src: 'api/**/*.js' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected framework `redwoodjs` that only supports legacy File System API. Please contact the framework author.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when framework is nextjs and has output dir', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'pages/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'nextjs', outputDirectory: 'dist' },
+      builders: [{ use: '@vercel/next', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: { dependencies: { next: '^12.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected Next.js with Output Directory `dist` override. Please change it back to the default.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when framework is nextjs but missing from dependencies', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'pages/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'nextjs' },
+      builders: [{ use: '@vercel/next', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: { dependencies: { 'not-next': '^12.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected Next.js in Project Settings but missing `next` package.json dependencies. Please run `npm i next`.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when framework is nextjs but dependency is older version', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'pages/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'nextjs' },
+      builders: [{ use: '@vercel/next', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: { dependencies: { next: '^9.0.0' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected legacy Next.js version "^9.0.0" in package.json. Please run `npm i next@latest` to upgrade.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should error when vercel cli is older version', async () => {
+    const result = await detectFileSystemAPI({
+      files: { 'pages/foo.js': 'console.log("foo")' },
+      projectSettings: { framework: 'nextjs' },
+      builders: [{ use: '@vercel/next', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: { dependencies: { next: '^12.1.0', vercel: '^23.1.1' } },
+      tag: '',
+      enableFlag: true,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: null,
+      reason:
+        'Detected legacy Vercel CLI version "^23.1.1" in package.json. Please run `npm i vercel@latest` to upgrade.',
+      metadata: { hasDotOutput: false, hasMiddleware: false, plugins: [] },
+    });
+  });
+
+  it('should succeed when middleware detected', async () => {
+    const result = await detectFileSystemAPI({
+      files: { '_middleware.js': 'print("foo")' },
+      projectSettings: {},
+      builders: [{ use: '@vercel/static-build', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: false,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: {
+        use: '@vercelruntimes/file-system-api',
+        src: '**',
+        config: {
+          fileSystemAPI: true,
+          framework: null,
+          hasDotOutput: false,
+          hasMiddleware: true,
+          projectSettings: {},
+        },
+      },
+      reason: null,
+      metadata: { hasDotOutput: false, hasMiddleware: true, plugins: [] },
+    });
+  });
+
+  it('should succeed when .output detected', async () => {
+    const result = await detectFileSystemAPI({
+      files: { '.output/routes-manifest.json': '{}' },
+      projectSettings: { framework: 'remix' },
+      builders: [{ use: '@vercel/static-build', src: 'package.json' }],
+      vercelConfig: null,
+      pkg: null,
+      tag: '',
+      enableFlag: false,
+    });
+    expect(result).toEqual({
+      fsApiBuilder: {
+        use: '@vercelruntimes/file-system-api',
+        src: '**',
+        config: {
+          fileSystemAPI: true,
+          framework: 'remix',
+          hasDotOutput: true,
+          hasMiddleware: false,
+          projectSettings: { framework: 'remix' },
+        },
+      },
+      reason: null,
+      metadata: { hasDotOutput: true, hasMiddleware: false, plugins: [] },
+    });
+  });
+});

packages/build-utils/test/unit.test.ts

@@ -285,6 +285,14 @@ it('should support require by path for legacy builders', () => {
 it(
   'should have correct $PATH when running `runPackageJsonScript()` with yarn',
   async () => {
+    if (process.platform === 'win32') {
+      console.log('Skipping test on windows');
+      return;
+    }
+    if (process.platform === 'darwin') {
+      console.log('Skipping test on macOS');
+      return;
+    }
     const fixture = path.join(__dirname, 'fixtures', '19-yarn-v2');
     await runNpmInstall(fixture);
     await runPackageJsonScript(fixture, 'env');

packages/cli/README.md

@@ -34,7 +34,7 @@ Finally, [connect your Git repository to Vercel](https://vercel.com/docs/git) an
 
 ## Documentation
 
-For details on how to use Vercel CLI, check out our [documentation](https://vercel.com/docs).
+For details on how to use Vercel CLI, check out our [documentation](https://vercel.com/docs/cli).
 
 ## Local Development
 

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel",
-  "version": "23.1.3-canary.61",
+  "version": "23.1.3-canary.72",
   "preferGlobal": true,
   "license": "Apache-2.0",
   "description": "The command-line interface for Vercel",
@@ -43,14 +43,14 @@
     "node": ">= 12"
   },
   "dependencies": {
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@vercel/go": "1.2.4-canary.4",
     "@vercel/node": "1.12.2-canary.7",
-    "@vercel/python": "2.1.2-canary.1",
+    "@vercel/python": "2.1.2-canary.2",
     "@vercel/ruby": "1.2.10-canary.0",
     "update-notifier": "4.1.0",
-    "vercel-plugin-middleware": "0.0.0-canary.14",
-    "vercel-plugin-node": "1.12.2-canary.30"
+    "vercel-plugin-middleware": "0.0.0-canary.24",
+    "vercel-plugin-node": "1.12.2-canary.39"
   },
   "devDependencies": {
     "@next/env": "11.1.2",
@@ -90,7 +90,8 @@
     "@types/update-notifier": "5.1.0",
     "@types/which": "1.3.2",
     "@types/write-json-file": "2.2.1",
-    "@vercel/frameworks": "0.5.1-canary.17",
+    "@vercel/client": "10.2.3-canary.50",
+    "@vercel/frameworks": "0.5.1-canary.19",
     "@vercel/ncc": "0.24.0",
     "@vercel/nft": "0.17.0",
     "@zeit/fun": "0.11.2",

packages/cli/src/commands/build.ts

@@ -6,20 +6,23 @@ import {
   scanParentDirs,
   spawnAsync,
   glob as buildUtilsGlob,
+  detectFileSystemAPI,
+  detectBuilders,
+  PackageJson,
 } from '@vercel/build-utils';
 import { nodeFileTrace } from '@vercel/nft';
 import Sema from 'async-sema';
 import chalk from 'chalk';
 import { SpawnOptions } from 'child_process';
 import { assert } from 'console';
-import { createHash } from 'crypto';
 import fs from 'fs-extra';
 import ogGlob from 'glob';
-import { dirname, isAbsolute, join, parse, relative, resolve } from 'path';
+import { dirname, isAbsolute, join, parse, relative } from 'path';
 import pluralize from 'pluralize';
 import Client from '../util/client';
 import { VercelConfig } from '../util/dev/types';
 import { emoji, prependEmoji } from '../util/emoji';
+import { CantParseJSONFile } from '../util/errors-ts';
 import getArgs from '../util/get-args';
 import handleError from '../util/handle-error';
 import confirm from '../util/input/confirm';
@@ -33,6 +36,7 @@ import { loadCliPlugins } from '../util/plugins';
 import { findFramework } from '../util/projects/find-framework';
 import { VERCEL_DIR } from '../util/projects/link';
 import { readProjectSettings } from '../util/projects/project-settings';
+import readJSONFile from '../util/read-json-file';
 import pull from './pull';
 
 const sema = new Sema(16, {
@@ -147,6 +151,36 @@ export default async function main(client: Client) {
 
   process.chdir(cwd);
 
+  const pkg = await readJSONFile<PackageJson>('./package.json');
+  if (pkg instanceof CantParseJSONFile) {
+    throw pkg;
+  }
+  const vercelConfig = await readJSONFile<VercelConfig>('./vercel.json');
+  if (vercelConfig instanceof CantParseJSONFile) {
+    throw vercelConfig;
+  }
+
+  if (!process.env.NOW_BUILDER) {
+    // This validation is only necessary when
+    // a user runs `vercel build` locally.
+    const globFiles = await buildUtilsGlob('**', { cwd });
+    const zeroConfig = await detectBuilders(Object.keys(globFiles), pkg);
+    const { reason } = await detectFileSystemAPI({
+      files: globFiles,
+      projectSettings: project.settings,
+      builders: zeroConfig.builders || [],
+      pkg,
+      vercelConfig,
+      tag: '',
+      enableFlag: true,
+    });
+
+    if (reason) {
+      client.output.error(`${cmd(`${getPkgName()} build`)} failed: ${reason}`);
+      return 1;
+    }
+  }
+
   const framework = findFramework(project.settings.framework);
   // If this is undefined, we bail. If it is null, then findFramework should return "Other",
   // so this should really never happen, but just in case....
@@ -637,30 +671,15 @@ export default async function main(client: Client) {
             ],
           });
           fileList.delete(relative(cwd, f));
-          await resolveNftToOutput({
-            client,
-            baseDir,
-            outputDir: OUTPUT_DIR,
-            nftFileName: f.replace(ext, '.js.nft.json'),
-            distDir,
-            nft: {
-              version: 1,
-              files: Array.from(fileList).map(fileListEntry =>
-                relative(dir, fileListEntry)
-              ),
-            },
-          });
-        }
-      } else {
-        for (let f of nftFiles) {
-          const json = await fs.readJson(f);
-          await resolveNftToOutput({
-            client,
-            baseDir,
-            outputDir: OUTPUT_DIR,
-            nftFileName: f,
-            nft: json,
-            distDir,
+
+          const nftFileName = f.replace(ext, '.js.nft.json');
+          client.output.debug(`Creating ${nftFileName}`);
+
+          await fs.writeJSON(nftFileName, {
+            version: 2,
+            files: Array.from(fileList).map(fileListEntry =>
+              relative(dir, fileListEntry)
+            ),
           });
         }
       }
@@ -684,15 +703,7 @@ export default async function main(client: Client) {
             const originalPath = join(requiredServerFilesJson.appDir, i);
             const relPath = join(OUTPUT_DIR, relative(distDir, originalPath));
 
-            const absolutePath = join(cwd, relPath);
-            const output = relative(baseDir, absolutePath);
-
-            return relPath === output
-              ? relPath
-              : {
-                  input: relPath,
-                  output,
-                };
+            return relPath;
           }),
         });
       }
@@ -849,88 +860,6 @@ async function glob(pattern: string, options: GlobOptions): Promise<string[]> {
   });
 }
 
-/**
- * Computes a hash for the given buf.
- *
- * @param {Buffer} file data
- * @return {String} hex digest
- */
-function hash(buf: Buffer): string {
-  return createHash('sha1').update(buf).digest('hex');
-}
-
-interface NftFile {
-  version: number;
-  files: (string | { input: string; output: string })[];
-}
-
-// resolveNftToOutput takes nft file and moves all of its trace files
-// into the specified directory + `inputs`, (renaming them to their hash + ext) and
-// subsequently updating the original nft file accordingly. This is done
-// to make the `.output` directory be self-contained, so that it works
-// properly with `vc --prebuilt`.
-async function resolveNftToOutput({
-  client,
-  baseDir,
-  outputDir,
-  nftFileName,
-  distDir,
-  nft,
-}: {
-  client: Client;
-  baseDir: string;
-  outputDir: string;
-  nftFileName: string;
-  distDir: string;
-  nft: NftFile;
-}) {
-  client.output.debug(`Processing and resolving ${nftFileName}`);
-  await fs.ensureDir(join(outputDir, 'inputs'));
-  const newFilesList: NftFile['files'] = [];
-
-  // If `distDir` is a subdirectory, then the input has to be resolved to where the `.output` directory will be.
-  const relNftFileName = relative(outputDir, nftFileName);
-  const origNftFilename = join(distDir, relNftFileName);
-
-  if (relNftFileName.startsWith('cache/')) {
-    // No need to process the `cache/` directory.
-    // Paths in it might also not be relative to `cache` itself.
-    return;
-  }
-
-  for (let fileEntity of nft.files) {
-    const relativeInput =
-      typeof fileEntity === 'string' ? fileEntity : fileEntity.input;
-    const fullInput = resolve(join(parse(origNftFilename).dir, relativeInput));
-
-    // if the resolved path is NOT in the .output directory we move in it there
-    if (!fullInput.includes(distDir)) {
-      const { ext } = parse(fullInput);
-      const raw = await fs.readFile(fullInput);
-      const newFilePath = join(outputDir, 'inputs', hash(raw) + ext);
-      smartCopy(client, fullInput, newFilePath);
-
-      // We have to use `baseDir` instead of `cwd`, because we want to
-      // mount everything from there (especially `node_modules`).
-      // This is important for NPM Workspaces where `node_modules` is not
-      // in the directory of the workspace.
-      const output = relative(baseDir, fullInput).replace('.output', '.next');
-
-      newFilesList.push({
-        input: relative(parse(nftFileName).dir, newFilePath),
-        output,
-      });
-    } else {
-      newFilesList.push(relativeInput);
-    }
-  }
-  // Update the .nft.json with new input and output mapping
-  await fs.writeJSON(nftFileName, {
-    ...nft,
-    files: newFilesList,
-  });
-}
-
 /**
  * Files will only exist when `next export` was used.
  */

packages/cli/src/commands/deploy/index.ts

@@ -166,8 +166,8 @@ export default async (client: Client) => {
     return pathValidation.exitCode;
   }
 
-  const { isFile, path } = pathValidation;
-  const autoConfirm = argv['--confirm'] || isFile;
+  const { path } = pathValidation;
+  const autoConfirm = argv['--confirm'];
 
   // deprecate --name
   if (argv['--name']) {
@@ -192,7 +192,7 @@ export default async (client: Client) => {
 
   let newProjectName = null;
   let rootDirectory = project ? project.rootDirectory : null;
-  let sourceFilesOutsideRootDirectory = true;
+  let sourceFilesOutsideRootDirectory: boolean | undefined = true;
 
   if (status === 'not_linked') {
     const shouldStartSetup =
@@ -229,8 +229,7 @@ export default async (client: Client) => {
     // user input.
     const detectedProjectName = getProjectName({
       argv,
-      nowConfig: localConfig || {},
-      isFile,
+      nowConfig: localConfig,
       paths,
     });
 
@@ -447,9 +446,9 @@ export default async (client: Client) => {
       forceNew: argv['--force'],
       withCache: argv['--with-cache'],
       prebuilt: argv['--prebuilt'],
+      rootDirectory,
       quiet,
       wantsPublic: argv['--public'] || localConfig.public,
-      isFile,
       type: null,
       nowConfig: localConfig,
       regions,
@@ -471,7 +470,7 @@ export default async (client: Client) => {
       [sourcePath],
       createArgs,
       org,
-      !project && !isFile,
+      !project,
       path
     );
 
@@ -654,8 +653,7 @@ export default async (client: Client) => {
     client,
     deployment,
     deployStamp,
-    !argv['--no-clipboard'],
-    isFile
+    !argv['--no-clipboard']
   );
 };
 
@@ -790,8 +788,7 @@ const printDeploymentStatus = async (
     };
   },
   deployStamp: () => string,
-  isClipboardEnabled: boolean,
-  isFile: boolean
+  isClipboardEnabled: boolean
 ) => {
   indications = indications || [];
   const isProdDeployment = target === 'production';
@@ -813,7 +810,7 @@ const printDeploymentStatus = async (
     // print preview/production url
     let previewUrl: string;
     let isWildcard: boolean;
-    if (!isFile && Array.isArray(aliasList) && aliasList.length > 0) {
+    if (Array.isArray(aliasList) && aliasList.length > 0) {
       const previewUrlInfo = await getPreferredPreviewURL(client, aliasList);
       if (previewUrlInfo) {
         isWildcard = previewUrlInfo.isWildcard;

packages/cli/src/commands/dev/index.ts

@@ -11,9 +11,10 @@ import logo from '../../util/output/logo';
 import cmd from '../../util/output/cmd';
 import highlight from '../../util/output/highlight';
 import dev from './dev';
-import readPackage from '../../util/read-package';
 import readConfig from '../../util/config/read-config';
+import readJSONFile from '../../util/read-json-file';
 import { getPkgName, getCommandName } from '../../util/pkg-name';
+import { CantParseJSONFile } from '../../util/errors-ts';
 
 const COMMAND_CONFIG = {
   dev: ['dev'],
@@ -96,33 +97,34 @@ export default async function main(client: Client) {
 
   const [dir = '.'] = args;
 
-  const nowJson = await readConfig(dir);
-  // @ts-ignore: Because `nowJson` could be one of three different types
-  const hasBuilds = nowJson && nowJson.builds && nowJson.builds.length > 0;
+  const vercelConfig = await readConfig(dir);
 
-  if (!nowJson || !hasBuilds) {
-    const pkg = await readPackage(path.join(dir, 'package.json'));
+  const hasBuilds =
+    vercelConfig &&
+    'builds' in vercelConfig &&
+    vercelConfig.builds &&
+    vercelConfig.builds.length > 0;
 
-    if (pkg) {
-      const { scripts } = pkg as PackageJson;
+  if (!vercelConfig || !hasBuilds) {
+    const pkg = await readJSONFile<PackageJson>(path.join(dir, 'package.json'));
 
-      if (
-        scripts &&
-        scripts.dev &&
-        /\b(now|vercel)\b\W+\bdev\b/.test(scripts.dev)
-      ) {
-        client.output.error(
-          `${cmd(
-            `${getPkgName()} dev`
-          )} must not recursively invoke itself. Check the Development Command in the Project Settings or the ${cmd(
-            'dev'
-          )} script in ${cmd('package.json')}`
-        );
-        client.output.error(
-          `Learn More: https://vercel.link/recursive-invocation-of-commands`
-        );
-        return 1;
-      }
+    if (pkg instanceof CantParseJSONFile) {
+      client.output.error('Could not parse package.json');
+      return 1;
+    }
+
+    if (/\b(now|vercel)\b\W+\bdev\b/.test(pkg?.scripts?.dev || '')) {
+      client.output.error(
+        `${cmd(
+          `${getPkgName()} dev`
+        )} must not recursively invoke itself. Check the Development Command in the Project Settings or the ${cmd(
+          'dev'
+        )} script in ${cmd('package.json')}`
+      );
+      client.output.error(
+        `Learn More: https://vercel.link/recursive-invocation-of-commands`
+      );
+      return 1;
     }
   }
 

packages/cli/src/types.ts

@@ -1,3 +1,5 @@
+export type ProjectSettings = import('@vercel/build-utils').ProjectSettings;
+
 export type Primitive =
   | bigint
   | boolean
@@ -239,16 +241,6 @@ export interface ProjectEnvVariable {
   gitBranch?: string;
 }
 
-export interface ProjectSettings {
-  framework?: string | null;
-  devCommand?: string | null;
-  buildCommand?: string | null;
-  outputDirectory?: string | null;
-  rootDirectory?: string | null;
-  autoExposeSystemEnvs?: boolean;
-  directoryListing?: boolean;
-}
-
 export interface Project extends ProjectSettings {
   id: string;
   name: string;
@@ -260,8 +252,6 @@ export interface Project extends ProjectSettings {
   framework?: string | null;
   rootDirectory?: string | null;
   latestDeployments?: Partial<Deployment>[];
-  autoExposeSystemEnvs?: boolean;
-  sourceFilesOutsideRootDirectory: boolean;
 }
 
 export interface Org {

packages/cli/src/util/config/read-config.ts

@@ -6,14 +6,14 @@ import getLocalConfigPath from './local-path';
 
 export default async function readConfig(dir: string) {
   const pkgFilePath = getLocalConfigPath(join(process.cwd(), dir));
-  const result = await readJSONFile(pkgFilePath);
+  const result = await readJSONFile<VercelConfig>(pkgFilePath);
 
   if (result instanceof CantParseJSONFile) {
     return result;
   }
 
   if (result) {
-    return result as VercelConfig;
+    return result;
   }
 
   return null;

packages/cli/src/util/deploy/process-deployment.ts

@@ -52,6 +52,7 @@ export default async function processDeployment({
   isSettingUpProject: boolean;
   skipAutoDetectionConfirmation?: boolean;
   cwd?: string;
+  rootDirectory?: string;
 }) {
   let {
     now,
@@ -64,6 +65,7 @@ export default async function processDeployment({
     nowConfig,
     quiet,
     prebuilt,
+    rootDirectory,
   } = args;
 
   const { debug } = output;
@@ -86,6 +88,7 @@ export default async function processDeployment({
     force,
     withCache,
     prebuilt,
+    rootDirectory,
     skipAutoDetectionConfirmation,
   };
 

packages/cli/src/util/dev/server.ts

@@ -40,6 +40,7 @@ import {
   detectApiExtensions,
   spawnCommand,
   isOfficialRuntime,
+  detectFileSystemAPI,
 } from '@vercel/build-utils';
 import frameworkList from '@vercel/frameworks';
 
@@ -599,6 +600,32 @@ export default class DevServer {
         );
       }
 
+      const { reason, metadata } = await detectFileSystemAPI({
+        files,
+        builders: builders || [],
+        projectSettings: projectSettings || this.projectSettings || {},
+        vercelConfig,
+        pkg,
+        tag: '',
+        enableFlag: true,
+      });
+
+      if (reason) {
+        if (metadata.hasMiddleware) {
+          this.output.error(
+            `Detected middleware usage which requires the latest API. ${reason}`
+          );
+          await this.exit();
+        } else if (metadata.plugins.length > 0) {
+          this.output.error(
+            `Detected CLI plugins which requires the latest API. ${reason}`
+          );
+          await this.exit();
+        } else {
+          this.output.warn(`Unable to use latest API. ${reason}`);
+        }
+      }
+
       if (builders) {
         if (this.devCommand) {
           builders = builders.filter(filterFrontendBuilds);

packages/cli/src/util/get-config.ts

@@ -8,7 +8,6 @@ import {
 } from './errors-ts';
 import humanizePath from './humanize-path';
 import readJSONFile from './read-json-file';
-import readPackage from './read-package';
 import { VercelConfig } from './dev/types';
 import { Output } from './output';
 
@@ -39,12 +38,12 @@ export default async function getConfig(
     output.debug(
       `Found config in provided --local-config path ${localFilePath}`
     );
-    const localConfig = await readJSONFile(localFilePath);
+    const localConfig = await readJSONFile<VercelConfig>(localFilePath);
     if (localConfig instanceof CantParseJSONFile) {
       return localConfig;
     }
     if (localConfig !== null) {
-      config = localConfig as VercelConfig;
+      config = localConfig;
       config[fileNameSymbol] = configFile;
       return config;
     }
@@ -54,8 +53,8 @@ export default async function getConfig(
   const vercelFilePath = path.resolve(localPath, 'vercel.json');
   const nowFilePath = path.resolve(localPath, 'now.json');
   const [vercelConfig, nowConfig] = await Promise.all([
-    readJSONFile(vercelFilePath),
-    readJSONFile(nowFilePath),
+    readJSONFile<VercelConfig>(vercelFilePath),
+    readJSONFile<VercelConfig>(nowFilePath),
   ]);
   if (vercelConfig instanceof CantParseJSONFile) {
     return vercelConfig;
@@ -68,41 +67,17 @@ export default async function getConfig(
   }
   if (vercelConfig !== null) {
     output.debug(`Found config in file "${vercelFilePath}"`);
-    config = vercelConfig as VercelConfig;
+    config = vercelConfig;
     config[fileNameSymbol] = 'vercel.json';
     return config;
   }
   if (nowConfig !== null) {
     output.debug(`Found config in file "${nowFilePath}"`);
-    config = nowConfig as VercelConfig;
+    config = nowConfig;
     config[fileNameSymbol] = 'now.json';
     return config;
   }
 
-  // Finally try with the package
-  const pkgFilePath = path.resolve(localPath, 'package.json');
-  const pkgConfig = await readConfigFromPackage(pkgFilePath);
-  if (pkgConfig instanceof CantParseJSONFile) {
-    return pkgConfig;
-  }
-  if (pkgConfig) {
-    output.debug(`Found config in package ${pkgFilePath}`);
-    config = pkgConfig as VercelConfig;
-    config[fileNameSymbol] = 'package.json';
-    return config;
-  }
-
   // If we couldn't find the config anywhere return error
-  return new CantFindConfig(
-    [vercelFilePath, nowFilePath, pkgFilePath].map(humanizePath)
-  );
-}
-
-async function readConfigFromPackage(file: string) {
-  const result = await readPackage(file);
-  if (result instanceof CantParseJSONFile) {
-    return result;
-  }
-
-  return result !== null ? result.now : null;
+  return new CantFindConfig([vercelFilePath, nowFilePath].map(humanizePath));
 }

packages/cli/src/util/get-project-name.ts

@@ -4,14 +4,12 @@ import { VercelConfig } from '@vercel/client';
 export interface GetProjectNameOptions {
   argv: { '--name'?: string };
   nowConfig?: VercelConfig;
-  isFile?: boolean;
   paths?: string[];
 }
 
 export default function getProjectName({
   argv,
   nowConfig = {},
-  isFile = false,
   paths = [],
 }: GetProjectNameOptions) {
   const nameCli = argv['--name'];
@@ -24,10 +22,6 @@ export default function getProjectName({
     return nowConfig.name;
   }
 
-  if (isFile || paths.length > 1) {
-    return 'files';
-  }
-
   // Otherwise, use the name of the directory
   return basename(paths[0] || '');
 }

packages/cli/src/util/index.ts

@@ -30,13 +30,13 @@ export interface NowOptions {
 export interface CreateOptions {
   // Legacy
   nowConfig?: VercelConfig;
-  isFile?: boolean;
 
   // Latest
   name: string;
   project?: string;
   wantsPublic: boolean;
   prebuilt?: boolean;
+  rootDirectory?: string;
   meta: Dictionary<string>;
   regions?: string[];
   quiet?: boolean;
@@ -113,6 +113,7 @@ export default class Now extends EventEmitter {
       name,
       project,
       prebuilt = false,
+      rootDirectory,
       wantsPublic,
       meta,
       regions,
@@ -168,6 +169,7 @@ export default class Now extends EventEmitter {
       skipAutoDetectionConfirmation,
       cwd,
       prebuilt,
+      rootDirectory,
     });
 
     if (deployment && deployment.warnings) {

packages/cli/src/util/input/input-project.ts

@@ -11,7 +11,7 @@ export default async function inputProject(
   client: Client,
   org: Org,
   detectedProjectName: string,
-  autoConfirm: boolean
+  autoConfirm = false
 ): Promise<Project | string> {
   const { output } = client;
   const slugifiedName = slugify(detectedProjectName);

packages/cli/src/util/input/input-root-directory.ts

@@ -7,7 +7,7 @@ import { validateRootDirectory } from '../validate-paths';
 export async function inputRootDirectory(
   cwd: string,
   output: Output,
-  autoConfirm: boolean
+  autoConfirm = false
 ) {
   if (autoConfirm) {
     return null;

packages/cli/src/util/link/setup-and-link.ts

@@ -158,7 +158,6 @@ export default async function setupAndLink(
         withCache: undefined,
         quiet,
         wantsPublic: localConfig?.public || false,
-        isFile,
         nowConfig: localConfig,
         regions: undefined,
         meta: {},
@@ -179,7 +178,7 @@ export default async function setupAndLink(
         [sourcePath],
         createArgs,
         org,
-        !isFile,
+        true,
         path
       );
 

packages/cli/src/util/read-json-file.ts

@@ -1,9 +1,9 @@
 import fs from 'fs-extra';
 import { CantParseJSONFile } from './errors-ts';
 
-export default async function readJSONFile(
+export default async function readJSONFile<T>(
   file: string
-): Promise<Object | null | CantParseJSONFile> {
+): Promise<T | null | CantParseJSONFile> {
   const content = await readFileSafe(file);
   if (content === null) {
     return content;

packages/cli/src/util/read-package.ts

@@ -1,24 +0,0 @@
-import path from 'path';
-import { CantParseJSONFile } from './errors-ts';
-import readJSONFile from './read-json-file';
-import { VercelConfig } from './dev/types';
-import { PackageJson } from '@vercel/build-utils';
-
-interface CustomPackage extends PackageJson {
-  now?: VercelConfig;
-}
-
-export default async function readPackage(file?: string) {
-  const pkgFilePath = file || path.resolve(process.cwd(), 'package.json');
-  const result = await readJSONFile(pkgFilePath);
-
-  if (result instanceof CantParseJSONFile) {
-    return result;
-  }
-
-  if (result) {
-    return result as CustomPackage;
-  }
-
-  return null;
-}

packages/cli/src/util/validate-paths.ts

@@ -4,7 +4,6 @@ import { Output } from './output';
 import chalk from 'chalk';
 import { homedir } from 'os';
 import confirm from './input/confirm';
-import { prependEmoji, emoji } from './emoji';
 import toHumanPath from './humanize-path';
 
 const stat = promisify(lstatRaw);
@@ -54,10 +53,7 @@ export async function validateRootDirectory(
 export default async function validatePaths(
   output: Output,
   paths: string[]
-): Promise<
-  | { valid: true; path: string; isFile: boolean }
-  | { valid: false; exitCode: number }
-> {
+): Promise<{ valid: true; path: string } | { valid: false; exitCode: number }> {
   // can't deploy more than 1 path
   if (paths.length > 1) {
     output.print(`${chalk.red('Error!')} Can't deploy more than one path.\n`);
@@ -78,14 +74,12 @@ export default async function validatePaths(
     return { valid: false, exitCode: 1 };
   }
 
-  const isFile = pathStat && !pathStat.isDirectory();
-  if (isFile) {
-    output.print(
-      `${prependEmoji(
-        'Deploying files with Vercel is deprecated (https://vercel.link/faq-deploy-file)',
-        emoji('warning')
-      )}\n`
-    );
+  if (!pathStat.isDirectory()) {
+    output.prettyError({
+      message: 'Support for single file deployments has been removed.',
+      link: 'https://vercel.link/no-single-file-deployments',
+    });
+    return { valid: false, exitCode: 1 };
   }
 
   // ask confirmation if the directory is home
@@ -101,5 +95,5 @@ export default async function validatePaths(
     }
   }
 
-  return { valid: true, path, isFile };
+  return { valid: true, path };
 }

packages/cli/test/commands/deploy.test.ts

@@ -0,0 +1,60 @@
+import { join } from 'path';
+import { fileNameSymbol } from '@vercel/client';
+import { client } from '../mocks/client';
+import deploy from '../../src/commands/deploy';
+
+describe('deploy', () => {
+  it('should reject deploying a single file', async () => {
+    client.setArgv('deploy', __filename);
+    const exitCode = await deploy(client);
+    expect(exitCode).toEqual(1);
+    expect(client.outputBuffer).toEqual(
+      `Error! Support for single file deployments has been removed.\nLearn More: https://vercel.link/no-single-file-deployments\n`
+    );
+  });
+
+  it('should reject deploying multiple files', async () => {
+    client.setArgv('deploy', __filename, join(__dirname, 'inspect.test.ts'));
+    const exitCode = await deploy(client);
+    expect(exitCode).toEqual(1);
+    expect(client.outputBuffer).toEqual(
+      `Error! Can't deploy more than one path.\n`
+    );
+  });
+
+  it('should reject deploying a directory that does not exist', async () => {
+    client.setArgv('deploy', 'does-not-exists');
+    const exitCode = await deploy(client);
+    expect(exitCode).toEqual(1);
+    expect(client.outputBuffer).toEqual(
+      `Error! The specified file or directory "does-not-exists" does not exist.\n`
+    );
+  });
+
+  it('should reject deploying "version: 1"', async () => {
+    client.setArgv('deploy');
+    client.localConfig = {
+      [fileNameSymbol]: 'vercel.json',
+      version: 1,
+    };
+    const exitCode = await deploy(client);
+    expect(exitCode).toEqual(1);
+    expect(client.outputBuffer).toEqual(
+      'Error! The value of the `version` property within vercel.json can only be `2`.\n'
+    );
+  });
+
+  it('should reject deploying "version: {}"', async () => {
+    client.setArgv('deploy');
+    client.localConfig = {
+      [fileNameSymbol]: 'vercel.json',
+      // @ts-ignore
+      version: {},
+    };
+    const exitCode = await deploy(client);
+    expect(exitCode).toEqual(1);
+    expect(client.outputBuffer).toEqual(
+      'Error! The `version` property inside your vercel.json file must be a number.\n'
+    );
+  });
+});

packages/cli/test/integration.js

@@ -1913,59 +1913,6 @@ test('create a production deployment', async t => {
   t.is(deployment.target, 'production', JSON.stringify(deployment, null, 2));
 });
 
-test('deploying a file should not show prompts and display deprecation', async t => {
-  const file = fixture('static-single-file/first.png');
-
-  const output = await execute([file], {
-    reject: false,
-  });
-
-  const { stdout, stderr, exitCode } = output;
-
-  // Ensure the exit code is right
-  t.is(exitCode, 0, formatOutput(output));
-  t.true(stderr.includes('Deploying files with Vercel is deprecated'));
-
-  // Ensure `.vercel` was not created
-  t.is(
-    await exists(path.join(path.dirname(file), '.vercel')),
-    false,
-    '.vercel should not exists'
-  );
-
-  // Test if the output is really a URL
-  const { href, host } = new URL(stdout);
-  t.is(host.split('-')[0], 'files');
-
-  // Send a test request to the deployment
-  const response = await fetch(href);
-  const contentType = response.headers.get('content-type');
-
-  t.is(contentType, 'image/png');
-  t.deepEqual(await readFile(file), await response.buffer());
-});
-
-test('deploying more than 1 path should fail', async t => {
-  const file1 = fixture('static-multiple-files/first.png');
-  const file2 = fixture('static-multiple-files/second.png');
-
-  const { stdout, stderr, exitCode } = await execa(
-    binaryPath,
-    [file1, file2, '--public', '--name', session, ...defaultArgs, '--confirm'],
-    {
-      reject: false,
-    }
-  );
-
-  console.log(stderr);
-  console.log(stdout);
-  console.log(exitCode);
-
-  // Ensure the exit code is right
-  t.is(exitCode, 1);
-  t.true(stderr.trim().endsWith(`Can't deploy more than one path.`));
-});
-
 test('use build-env', async t => {
   const directory = fixture('build-env');
 

packages/cli/test/util/get-project-name.test.ts

@@ -10,7 +10,7 @@ describe('getProjectName', () => {
     expect(project).toEqual('abc');
   });
 
-  it('should work with now.json', () => {
+  it('should work with `vercel.json` config', () => {
     const project = getProjectName({
       argv: {},
       nowConfig: { name: 'abc' },
@@ -18,24 +18,6 @@ describe('getProjectName', () => {
     expect(project).toEqual('abc');
   });
 
-  it('should work with a file', () => {
-    const project = getProjectName({
-      argv: {},
-      nowConfig: {},
-      isFile: true,
-    });
-    expect(project).toEqual('files');
-  });
-
-  it('should work with a multiple files', () => {
-    const project = getProjectName({
-      argv: {},
-      nowConfig: {},
-      paths: ['/tmp/aa/abc.png', '/tmp/aa/bbc.png'],
-    });
-    expect(project).toEqual('files');
-  });
-
   it('should work with a directory', () => {
     const project = getProjectName({
       argv: {},

packages/client/.gitignore

@@ -6,3 +6,5 @@ node_modules
 !tests/fixtures/nowignore/node_modules
 !tests/fixtures/vercelignore-allow-nodemodules/node_modules
 !tests/fixtures/vercelignore-allow-nodemodules/sub/node_modules
+!tests/fixtures/file-system-api/.output
+!tests/fixtures/file-system-api-root-directory/**/.output

packages/client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/client",
-  "version": "10.2.3-canary.39",
+  "version": "10.2.3-canary.50",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "homepage": "https://vercel.com",
@@ -40,7 +40,7 @@
     ]
   },
   "dependencies": {
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@zeit/fetch": "5.2.0",
     "async-retry": "1.2.3",
     "async-sema": "3.0.0",

packages/client/src/create-deployment.ts

@@ -1,12 +1,12 @@
 import { lstatSync } from 'fs-extra';
 
 import { relative, isAbsolute } from 'path';
-import hashes, { mapToObject } from './utils/hashes';
+import { hashes, mapToObject, resolveNftJsonFiles } from './utils/hashes';
 import { upload } from './upload';
 import { buildFileTree, createDebug, parseVercelConfig } from './utils';
 import { DeploymentError } from './errors';
 import {
-  NowConfig,
+  VercelConfig,
   VercelClientOptions,
   DeploymentOptions,
   DeploymentEventType,
@@ -16,7 +16,7 @@ export default function buildCreateDeployment() {
   return async function* createDeployment(
     clientOptions: VercelClientOptions,
     deploymentOptions: DeploymentOptions = {},
-    nowConfig: NowConfig = {}
+    nowConfig: VercelConfig = {}
   ): AsyncIterableIterator<{ type: DeploymentEventType; payload: any }> {
     const { path } = clientOptions;
 
@@ -74,12 +74,7 @@ export default function buildCreateDeployment() {
       debug(`Provided 'path' is a single file`);
     }
 
-    let { fileList } = await buildFileTree(
-      path,
-      clientOptions.isDirectory,
-      debug,
-      clientOptions.prebuilt
-    );
+    let { fileList } = await buildFileTree(path, clientOptions, debug);
 
     let configPath: string | undefined;
     if (!nowConfig) {
@@ -114,7 +109,11 @@ export default function buildCreateDeployment() {
       };
     }
 
-    const files = await hashes(fileList);
+    const hashedFileMap = await hashes(fileList);
+    const nftFileList = clientOptions.prebuilt
+      ? await resolveNftJsonFiles(hashedFileMap)
+      : [];
+    const files = await hashes(nftFileList, hashedFileMap);
 
     debug(`Yielding a 'hashes-calculated' event with ${files.size} hashes`);
     yield { type: 'hashes-calculated', payload: mapToObject(files) };

packages/client/src/types.ts

@@ -1,4 +1,8 @@
-import { Builder, BuilderFunctions } from '@vercel/build-utils';
+import {
+  Builder,
+  BuilderFunctions,
+  ProjectSettings,
+} from '@vercel/build-utils';
 import { Header, Route, Redirect, Rewrite } from '@vercel/routing-utils';
 
 export { DeploymentEventType } from './utils';
@@ -15,6 +19,7 @@ export interface VercelClientOptions {
   apiUrl?: string;
   force?: boolean;
   prebuilt?: boolean;
+  rootDirectory?: string;
   withCache?: boolean;
   userAgent?: string;
   defaultName?: string;
@@ -123,12 +128,7 @@ export interface VercelConfig {
   scope?: string;
   alias?: string | string[];
   regions?: string[];
-  projectSettings?: {
-    devCommand?: string | null;
-    buildCommand?: string | null;
-    outputDirectory?: string | null;
-    framework?: string | null;
-  };
+  projectSettings?: ProjectSettings;
 }
 
 /**
@@ -154,9 +154,5 @@ export interface DeploymentOptions {
   name?: string;
   public?: boolean;
   meta?: Dictionary<string>;
-  projectSettings?: {
-    devCommand?: string | null;
-    buildCommand?: string | null;
-    outputDirectory?: string | null;
-  };
+  projectSettings?: ProjectSettings;
 }

packages/client/src/utils/hashes.ts

@@ -1,6 +1,7 @@
 import { createHash } from 'crypto';
 import fs from 'fs-extra';
 import { Sema } from 'async-sema';
+import { join, dirname } from 'path';
 
 export interface DeploymentFile {
   names: string[];
@@ -15,9 +16,7 @@ export interface DeploymentFile {
  * @return {String} hex digest
  */
 function hash(buf: Buffer): string {
-  return createHash('sha1')
-    .update(buf)
-    .digest('hex');
+  return createHash('sha1').update(buf).digest('hex');
 }
 
 /**
@@ -39,34 +38,68 @@ export const mapToObject = (
 /**
  * Computes hashes for the contents of each file given.
  *
- * @param {Array} of {String} full paths
- * @return {Map}
+ * @param files - absolute file paths
+ * @param map - optional map of files to append
+ * @return Map of hash digest to file object
  */
-async function hashes(files: string[]): Promise<Map<string, DeploymentFile>> {
-  const map = new Map<string, DeploymentFile>();
+export async function hashes(
+  files: string[],
+  map = new Map<string, DeploymentFile>()
+): Promise<Map<string, DeploymentFile>> {
   const semaphore = new Sema(100);
 
   await Promise.all(
-    files.map(
-      async (name: string): Promise<void> => {
-        await semaphore.acquire();
-        const data = await fs.readFile(name);
-        const { mode } = await fs.stat(name);
+    files.map(async (name: string): Promise<void> => {
+      await semaphore.acquire();
+      const data = await fs.readFile(name);
+      const { mode } = await fs.stat(name);
 
-        const h = hash(data);
-        const entry = map.get(h);
+      const h = hash(data);
+      const entry = map.get(h);
 
-        if (entry) {
-          entry.names.push(name);
-        } else {
-          map.set(h, { names: [name], data, mode });
-        }
-
-        semaphore.release();
+      if (entry) {
+        const names = new Set(entry.names);
+        names.add(name);
+        entry.names = [...names];
+      } else {
+        map.set(h, { names: [name], data, mode });
       }
-    )
+
+      semaphore.release();
+    })
   );
   return map;
 }
 
-export default hashes;
+export async function resolveNftJsonFiles(
+  hashedFiles: Map<string, DeploymentFile>
+): Promise<string[]> {
+  const semaphore = new Sema(100);
+  const existingFiles = Array.from(hashedFiles.values());
+  const resolvedFiles = new Set<string>();
+
+  await Promise.all(
+    existingFiles.map(async file => {
+      await semaphore.acquire();
+      const fsPath = file.names[0];
+      if (fsPath.endsWith('.nft.json')) {
+        const json = file.data.toString('utf8');
+        const { version, files } = JSON.parse(json) as {
+          version: number;
+          files: string[] | { input: string; output: string }[];
+        };
+        if (version === 1 || version === 2) {
+          for (let f of files) {
+            const relPath = typeof f === 'string' ? f : f.input;
+            resolvedFiles.add(join(dirname(fsPath), relPath));
+          }
+        } else {
+          console.error(`Invalid nft.json version: ${version}`);
+        }
+      }
+      semaphore.release();
+    })
+  );
+
+  return Array.from(resolvedFiles);
+}

packages/client/src/utils/index.ts

@@ -1,7 +1,7 @@
 import { DeploymentFile } from './hashes';
 import { FetchOptions } from '@zeit/fetch';
 import { nodeFetch, zeitFetch } from './fetch';
-import { join, sep, relative } from 'path';
+import { join, sep, relative, posix } from 'path';
 import { URL } from 'url';
 import ignore from 'ignore';
 type Ignore = ReturnType<typeof ignore>;
@@ -81,13 +81,16 @@ const maybeRead = async function <T>(path: string, default_: T) {
 
 export async function buildFileTree(
   path: string | string[],
-  isDirectory: boolean,
-  debug: Debug,
-  prebuilt?: boolean
+  {
+    isDirectory,
+    prebuilt,
+    rootDirectory,
+  }: Pick<VercelClientOptions, 'isDirectory' | 'prebuilt' | 'rootDirectory'>,
+  debug: Debug
 ): Promise<{ fileList: string[]; ignoreList: string[] }> {
   const ignoreList: string[] = [];
   let fileList: string[];
-  let { ig, ignores } = await getVercelIgnore(path, prebuilt);
+  let { ig, ignores } = await getVercelIgnore(path, prebuilt, rootDirectory);
 
   debug(`Found ${ignores.length} rules in .vercelignore`);
   debug('Building file tree...');
@@ -119,37 +122,50 @@ export async function buildFileTree(
 
 export async function getVercelIgnore(
   cwd: string | string[],
-  prebuilt?: boolean
+  prebuilt?: boolean,
+  rootDirectory?: string
 ): Promise<{ ig: Ignore; ignores: string[] }> {
-  const ignores: string[] = prebuilt
-    ? ['*', '!.output', '!.output/**']
-    : [
-        '.hg',
-        '.git',
-        '.gitmodules',
-        '.svn',
-        '.cache',
-        '.next',
-        '.now',
-        '.vercel',
-        '.npmignore',
-        '.dockerignore',
-        '.gitignore',
-        '.*.swp',
-        '.DS_Store',
-        '.wafpicke-*',
-        '.lock-wscript',
-        '.env.local',
-        '.env.*.local',
-        '.venv',
-        'npm-debug.log',
-        'config.gypi',
-        'node_modules',
-        '__pycache__',
-        'venv',
-        'CVS',
-        '.output',
-      ];
+  let ignores: string[] = [];
+
+  const outputDir = posix.join(rootDirectory || '', '.output');
+
+  if (prebuilt) {
+    ignores.push('*');
+    const parts = outputDir.split('/');
+    parts.forEach((_, i) => {
+      const level = parts.slice(0, i + 1).join('/');
+      ignores.push(`!${level}`);
+    });
+    ignores.push(`!${outputDir}/**`);
+  } else {
+    ignores = [
+      '.hg',
+      '.git',
+      '.gitmodules',
+      '.svn',
+      '.cache',
+      '.next',
+      '.now',
+      '.vercel',
+      '.npmignore',
+      '.dockerignore',
+      '.gitignore',
+      '.*.swp',
+      '.DS_Store',
+      '.wafpicke-*',
+      '.lock-wscript',
+      '.env.local',
+      '.env.*.local',
+      '.venv',
+      'npm-debug.log',
+      'config.gypi',
+      'node_modules',
+      '__pycache__',
+      'venv',
+      'CVS',
+      `.output`,
+    ];
+  }
   const cwds = Array.isArray(cwd) ? cwd : [cwd];
 
   const files = await Promise.all(
@@ -250,39 +266,31 @@ export const prepareFiles = (
   files: Map<string, DeploymentFile>,
   clientOptions: VercelClientOptions
 ): PreparedFile[] => {
-  const preparedFiles = [...files.keys()].reduce(
-    (acc: PreparedFile[], sha: string): PreparedFile[] => {
-      const next = [...acc];
+  const preparedFiles: PreparedFile[] = [];
+  for (const [sha, file] of files) {
+    for (const name of file.names) {
+      let fileName: string;
 
-      const file = files.get(sha) as DeploymentFile;
-
-      for (const name of file.names) {
-        let fileName: string;
-
-        if (clientOptions.isDirectory) {
-          // Directory
-          fileName =
-            typeof clientOptions.path === 'string'
-              ? relative(clientOptions.path, name)
-              : name;
-        } else {
-          // Array of files or single file
-          const segments = name.split(sep);
-          fileName = segments[segments.length - 1];
-        }
-
-        next.push({
-          file: isWin ? fileName.replace(/\\/g, '/') : fileName,
-          size: file.data.byteLength || file.data.length,
-          mode: file.mode,
-          sha,
-        });
+      if (clientOptions.isDirectory) {
+        // Directory
+        fileName =
+          typeof clientOptions.path === 'string'
+            ? relative(clientOptions.path, name)
+            : name;
+      } else {
+        // Array of files or single file
+        const segments = name.split(sep);
+        fileName = segments[segments.length - 1];
       }
 
-      return next;
-    },
-    []
-  );
+      preparedFiles.push({
+        file: isWin ? fileName.replace(/\\/g, '/') : fileName,
+        size: file.data.byteLength || file.data.length,
+        mode: file.mode,
+        sha,
+      });
+    }
+  }
 
   return preparedFiles;
 };

packages/client/tests/fixtures/file-system-api-root-directory/foo.txt

@@ -0,0 +1 @@
+foo

packages/client/tests/fixtures/file-system-api-root-directory/root/.output/baz.txt

@@ -0,0 +1 @@
+baz

packages/client/tests/fixtures/file-system-api-root-directory/root/.output/sub/qux.txt

@@ -0,0 +1 @@
+qux

packages/client/tests/fixtures/file-system-api-root-directory/root/bar.txt

@@ -0,0 +1 @@
+bar

packages/client/tests/fixtures/file-system-api-root-directory/someother/.output/baz.txt

@@ -0,0 +1 @@
+baz

packages/client/tests/fixtures/file-system-api-root-directory/someother/.output/sub/qux.txt

@@ -0,0 +1 @@
+qux

packages/client/tests/fixtures/file-system-api-root-directory/someother/bar.txt

@@ -0,0 +1 @@
+bar

packages/client/tests/fixtures/file-system-api/.output/baz.txt

@@ -0,0 +1 @@
+baz

packages/client/tests/fixtures/file-system-api/.output/sub/qux.txt

@@ -0,0 +1 @@
+qux

packages/client/tests/fixtures/file-system-api/foo.txt

@@ -0,0 +1 @@
+foo

packages/client/tests/fixtures/file-system-api/sub/bar.txt

@@ -0,0 +1 @@
+bar

packages/client/tests/tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "extends": "../tsconfig.json",
+  "include": ["*.test.ts"]
+}

packages/client/tests/unit.utils.test.ts

@@ -17,7 +17,11 @@ const toAbsolutePaths = (cwd: string, files: string[]) =>
 describe('buildFileTree()', () => {
   it('should exclude files using `.nowignore` blocklist', async () => {
     const cwd = fixture('nowignore');
-    const { fileList, ignoreList } = await buildFileTree(cwd, true, noop);
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true },
+      noop
+    );
 
     const expectedFileList = toAbsolutePaths(cwd, ['.nowignore', 'index.txt']);
     expect(normalizeWindowsPaths(expectedFileList).sort()).toEqual(
@@ -36,7 +40,11 @@ describe('buildFileTree()', () => {
 
   it('should include the node_modules using `.vercelignore` allowlist', async () => {
     const cwd = fixture('vercelignore-allow-nodemodules');
-    const { fileList, ignoreList } = await buildFileTree(cwd, true, noop);
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true },
+      noop
+    );
 
     const expected = toAbsolutePaths(cwd, [
       'node_modules/one.txt',
@@ -54,4 +62,90 @@ describe('buildFileTree()', () => {
       normalizeWindowsPaths(ignoreList).sort()
     );
   });
+
+  it('should find root files but ignore .output files when prebuilt=false', async () => {
+    const cwd = fixture('file-system-api');
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true, prebuilt: false },
+      noop
+    );
+
+    const expectedFileList = toAbsolutePaths(cwd, ['foo.txt', 'sub/bar.txt']);
+    expect(normalizeWindowsPaths(expectedFileList).sort()).toEqual(
+      normalizeWindowsPaths(fileList).sort()
+    );
+
+    const expectedIgnoreList = ['.output'];
+    expect(normalizeWindowsPaths(expectedIgnoreList).sort()).toEqual(
+      normalizeWindowsPaths(ignoreList).sort()
+    );
+  });
+
+  it('should find .output files but ignore other files when prebuilt=true', async () => {
+    const cwd = fixture('file-system-api');
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true, prebuilt: true },
+      noop
+    );
+
+    const expectedFileList = toAbsolutePaths(cwd, [
+      '.output/baz.txt',
+      '.output/sub/qux.txt',
+    ]);
+    expect(normalizeWindowsPaths(expectedFileList).sort()).toEqual(
+      normalizeWindowsPaths(fileList).sort()
+    );
+
+    const expectedIgnoreList = ['foo.txt', 'sub'];
+    expect(normalizeWindowsPaths(expectedIgnoreList).sort()).toEqual(
+      normalizeWindowsPaths(ignoreList).sort()
+    );
+  });
+
+  it('should find root files but ignore all .output files when prebuilt=false and rootDirectory=root', async () => {
+    const cwd = fixture('file-system-api-root-directory');
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true, prebuilt: false, rootDirectory: 'root' },
+      noop
+    );
+
+    const expectedFileList = toAbsolutePaths(cwd, [
+      'foo.txt',
+      'root/bar.txt',
+      'someother/bar.txt',
+    ]);
+    expect(normalizeWindowsPaths(expectedFileList).sort()).toEqual(
+      normalizeWindowsPaths(fileList).sort()
+    );
+
+    const expectedIgnoreList = ['root/.output', 'someother/.output'];
+    expect(normalizeWindowsPaths(expectedIgnoreList).sort()).toEqual(
+      normalizeWindowsPaths(ignoreList).sort()
+    );
+  });
+
+  it('should find root/.output files but ignore other files when prebuilt=true and rootDirectory=root', async () => {
+    const cwd = fixture('file-system-api-root-directory');
+    const { fileList, ignoreList } = await buildFileTree(
+      cwd,
+      { isDirectory: true, prebuilt: true, rootDirectory: 'root' },
+      noop
+    );
+
+    const expectedFileList = toAbsolutePaths(cwd, [
+      'root/.output/baz.txt',
+      'root/.output/sub/qux.txt',
+    ]);
+    expect(normalizeWindowsPaths(expectedFileList).sort()).toEqual(
+      normalizeWindowsPaths(fileList).sort()
+    );
+
+    const expectedIgnoreList = ['foo.txt', 'root/bar.txt', 'someother'];
+    expect(normalizeWindowsPaths(expectedIgnoreList).sort()).toEqual(
+      normalizeWindowsPaths(ignoreList).sort()
+    );
+  });
 });

packages/frameworks/logos/solid.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 166 155.3"><defs><linearGradient id="a" gradientUnits="userSpaceOnUse" x1="27.5" y1="3" x2="152" y2="63.5"><stop offset=".1" stop-color="#76b3e1"/><stop offset=".3" stop-color="#dcf2fd"/><stop offset="1" stop-color="#76b3e1"/></linearGradient><linearGradient id="b" gradientUnits="userSpaceOnUse" x1="95.8" y1="32.6" x2="74" y2="105.2"><stop offset="0" stop-color="#76b3e1"/><stop offset=".5" stop-color="#4377bb"/><stop offset="1" stop-color="#1f3b77"/></linearGradient><linearGradient id="c" gradientUnits="userSpaceOnUse" x1="18.4" y1="64.2" x2="144.3" y2="149.8"><stop offset="0" stop-color="#315aa9"/><stop offset=".5" stop-color="#518ac8"/><stop offset="1" stop-color="#315aa9"/></linearGradient><linearGradient id="d" gradientUnits="userSpaceOnUse" x1="75.2" y1="74.5" x2="24.4" y2="260.8"><stop offset="0" stop-color="#4377bb"/><stop offset=".5" stop-color="#1a336b"/><stop offset="1" stop-color="#1a336b"/></linearGradient></defs><path d="M163 35S110-4 69 5l-3 1c-6 2-11 5-14 9l-2 3-15 26 26 5c11 7 25 10 38 7l46 9 18-30z" fill="#76b3e1"/><path d="M163 35S110-4 69 5l-3 1c-6 2-11 5-14 9l-2 3-15 26 26 5c11 7 25 10 38 7l46 9 18-30z" opacity=".3" fill="url(#a)"/><path d="M52 35l-4 1c-17 5-22 21-13 35 10 13 31 20 48 15l62-21S92 26 52 35z" fill="#518ac8"/><path d="M52 35l-4 1c-17 5-22 21-13 35 10 13 31 20 48 15l62-21S92 26 52 35z" opacity=".3" fill="url(#b)"/><path d="M134 80a45 45 0 00-48-15L24 85 4 120l112 19 20-36c4-7 3-15-2-23z" fill="url(#c)"/><path d="M114 115a45 45 0 00-48-15L4 120s53 40 94 30l3-1c17-5 23-21 13-34z" fill="url(#d)"/></svg>

packages/frameworks/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/frameworks",
-  "version": "0.5.1-canary.17",
+  "version": "0.5.1-canary.19",
   "main": "./dist/frameworks.js",
   "types": "./dist/frameworks.d.ts",
   "files": [

packages/frameworks/src/frameworks.ts

@@ -579,6 +579,46 @@ export const frameworks = [
       },
     ],
   },
+  {
+    name: 'SolidStart',
+    slug: 'solidstart',
+    demo: 'https://solidstart.examples.vercel.com',
+    logo: 'https://raw.githubusercontent.com/vercel/vercel/main/packages/frameworks/logos/solid.svg',
+    tagline: 'Simple and performant reactivity for building user interfaces.',
+    description: 'A Solid app, created with SolidStart.',
+    website: 'https://solidjs.com',
+    envPrefix: 'VITE_',
+    detectors: {
+      every: [
+        {
+          path: 'package.json',
+          matchContent:
+            '"(dev)?(d|D)ependencies":\\s*{[^}]*"solid-js":\\s*".+?"[^}]*}',
+        },
+        {
+          path: 'package.json',
+          matchContent:
+            '"(dev)?(d|D)ependencies":\\s*{[^}]*"solid-start":\\s*".+?"[^}]*}',
+        },
+      ],
+    },
+    settings: {
+      installCommand: {
+        placeholder: '`yarn install` or `npm install`',
+      },
+      buildCommand: {
+        placeholder: '`npm run build` or `solid-start build`',
+        value: 'solid-start build',
+      },
+      devCommand: {
+        value: 'solid-start dev',
+      },
+      outputDirectory: {
+        value: '.output',
+      },
+    },
+    getOutputDirName: async () => '.output',
+  },
   {
     name: 'Dojo',
     slug: 'dojo',
@@ -1065,6 +1105,7 @@ export const frameworks = [
       'SvelteKit is a framework for building web applications of all sizes.',
     description: 'A SvelteKit app optimized to work for serverless.',
     website: 'https://kit.svelte.dev',
+    envPrefix: 'VITE_',
     detectors: {
       every: [
         {

packages/middleware/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel-plugin-middleware",
-  "version": "0.0.0-canary.14",
+  "version": "0.0.0-canary.24",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "",
@@ -30,7 +30,7 @@
     "@types/node-fetch": "^2",
     "@types/ua-parser-js": "0.7.36",
     "@types/uuid": "8.3.1",
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@vercel/ncc": "0.24.0",
     "cookie": "0.4.1",
     "formdata-node": "4.3.1",

packages/middleware/src/esbuild-plugins.ts

@@ -0,0 +1,52 @@
+import path from 'path';
+import * as esbuild from 'esbuild';
+
+const processInjectFile = `
+// envOverride is passed by esbuild plugin
+const env = envOverride
+function cwd() {
+    return '/'
+}
+function chdir(dir) {
+    throw new Error('process.chdir is not supported')
+}
+export const process = {
+  argv: [],
+  env,
+  chdir,
+  cwd,
+};
+`;
+
+export function nodeProcessPolyfillPlugin({ env = {} } = {}): esbuild.Plugin {
+  return {
+    name: 'node-process-polyfill',
+    setup({ initialOptions, onResolve, onLoad }) {
+      onResolve({ filter: /_virtual-process-polyfill_\.js/ }, ({ path }) => {
+        return {
+          path,
+          sideEffects: false,
+        };
+      });
+
+      onLoad({ filter: /_virtual-process-polyfill_\.js/ }, () => {
+        const contents = `const envOverride = ${JSON.stringify(
+          env
+        )};\n${processInjectFile}`;
+        return {
+          loader: 'js',
+          contents,
+        };
+      });
+
+      const polyfills = [
+        path.resolve(__dirname, '_virtual-process-polyfill_.js'),
+      ];
+      if (initialOptions.inject) {
+        initialOptions.inject.push(...polyfills);
+      } else {
+        initialOptions.inject = [...polyfills];
+      }
+    },
+  };
+}

packages/middleware/src/index.ts

@@ -5,7 +5,7 @@ import { promises as fsp } from 'fs';
 import { IncomingMessage, ServerResponse } from 'http';
 import libGlob from 'glob';
 import Proxy from 'http-proxy';
-import { updateFunctionsManifest } from '@vercel/build-utils';
+import { _experimental_updateFunctionsManifest } from '@vercel/build-utils';
 
 import { run } from './websandbox';
 import type { FetchEventResult } from './websandbox/types';
@@ -17,6 +17,7 @@ import {
   UrlWithParsedQuery,
 } from 'url';
 import { toNodeHeaders } from './websandbox/utils';
+import { nodeProcessPolyfillPlugin } from './esbuild-plugins';
 
 const glob = util.promisify(libGlob);
 const SUPPORTED_EXTENSIONS = ['.js', '.ts'];
@@ -80,6 +81,7 @@ export async function build({ workPath }: { workPath: string }) {
       banner: {
         js: '"use strict";',
       },
+      plugins: [nodeProcessPolyfillPlugin({ env: process.env })],
       format: 'cjs',
     });
     // Create `_ENTRIES` wrapper
@@ -108,7 +110,7 @@ export async function build({ workPath }: { workPath: string }) {
     sortingIndex: 1,
   };
 
-  await updateFunctionsManifest({ workPath, pages });
+  await _experimental_updateFunctionsManifest({ workPath, pages });
 }
 
 const stringifyQuery = (req: IncomingMessage, query: ParsedUrlQuery) => {

packages/middleware/test/__snapshots__/build.test.ts.snap

@@ -15,6 +15,6 @@ Object {
       "sortingIndex": 1,
     },
   },
-  "version": 1,
+  "version": 2,
 }
 `;

packages/middleware/test/build.test.ts

@@ -63,6 +63,32 @@ describe('build()', () => {
     ).toEqual('1');
   });
 
+  it('should build simple middleware with env vars', async () => {
+    const expectedEnvVar = 'expected-env-var';
+    const fixture = join(__dirname, 'fixtures/env');
+    process.env.ENV_VAR_SHOULD_BE_DEFINED = expectedEnvVar;
+    await build({
+      workPath: fixture,
+    });
+    // env var should be inlined in the output
+    delete process.env.ENV_VAR_SHOULD_BE_DEFINED;
+
+    const outputFile = join(fixture, '.output/server/pages/_middleware.js');
+    expect(await fsp.stat(outputFile)).toBeTruthy();
+
+    require(outputFile);
+    //@ts-ignore
+    const middleware = global._ENTRIES['middleware_pages/_middleware'].default;
+    expect(typeof middleware).toStrictEqual('function');
+    const handledResponse = await middleware({
+      request: {},
+    });
+    expect(String(handledResponse.response.body)).toEqual(expectedEnvVar);
+    expect(
+      (handledResponse.response as Response).headers.get('x-middleware-next')
+    ).toEqual(null);
+  });
+
   it('should create a middleware that runs in strict mode', async () => {
     const { middleware } = await setupFixture('use-strict');
     const response = await middleware({

packages/middleware/test/fixtures/env/_middleware.js

@@ -0,0 +1,3 @@
+export default req => {
+  return new Response(process.env.ENV_VAR_SHOULD_BE_DEFINED);
+};

packages/plugin-go/package.json

@@ -1,7 +1,7 @@
 {
   "private": false,
   "name": "vercel-plugin-go",
-  "version": "1.0.0-canary.26",
+  "version": "1.0.0-canary.35",
   "main": "dist/index.js",
   "license": "MIT",
   "files": [
@@ -17,7 +17,7 @@
     "prepublishOnly": "tsc"
   },
   "dependencies": {
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@vercel/go": "1.2.4-canary.4"
   },
   "devDependencies": {

packages/plugin-go/src/index.ts

@@ -1,6 +1,10 @@
-import { convertRuntimeToPlugin } from '@vercel/build-utils';
+import { _experimental_convertRuntimeToPlugin } from '@vercel/build-utils';
 import * as go from '@vercel/go';
 
-export const build = convertRuntimeToPlugin(go.build, 'vercel-plugin-go', '.go');
+export const build = _experimental_convertRuntimeToPlugin(
+  go.build,
+  'vercel-plugin-go',
+  '.go'
+);
 
 export const startDevServer = go.startDevServer;

packages/plugin-node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel-plugin-node",
-  "version": "1.12.2-canary.30",
+  "version": "1.12.2-canary.39",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/node-js",
@@ -34,7 +34,7 @@
     "@types/node-fetch": "2",
     "@types/test-listen": "1.1.0",
     "@types/yazl": "2.4.2",
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@vercel/fun": "1.0.3",
     "@vercel/ncc": "0.24.0",
     "@vercel/nft": "0.14.0",

packages/plugin-node/src/index.ts

@@ -1,4 +1,5 @@
 import { fork, spawn } from 'child_process';
+import { createHash } from 'crypto';
 import {
   createWriteStream,
   readFileSync,
@@ -35,12 +36,11 @@ import {
   debug,
   isSymbolicLink,
   runNpmInstall,
-  updateFunctionsManifest,
-  updateRoutesManifest,
+  _experimental_updateFunctionsManifest,
+  _experimental_updateRoutesManifest,
   walkParentDirs,
   normalizePath,
   runPackageJsonScript,
-  getInputHash,
 } from '@vercel/build-utils';
 import { FromSchema } from 'json-schema-to-ts';
 import { getConfig, BaseFunctionConfigSchema } from '@vercel/static-config';
@@ -428,7 +428,8 @@ export async function buildEntrypoint({
   installedPaths?: Set<string>;
 }) {
   // Unique hash that will be used as directory name for `.output`.
-  const entrypointHash = 'api-routes-node-' + getInputHash(entrypoint);
+  const entrypointHash =
+    'api-routes-node-' + createHash('sha1').update(entrypoint).digest('hex');
   const outputDirPath = join(workPath, '.output');
 
   const { dir, name } = parsePath(entrypoint);
@@ -548,12 +549,12 @@ export async function buildEntrypoint({
       runtime: nodeVersion.runtime,
     },
   };
-  await updateFunctionsManifest({ workPath, pages });
+  await _experimental_updateFunctionsManifest({ workPath, pages });
 
   // Update the `routes-mainifest.json` file with the wildcard route
   // when the entrypoint is dynamic (i.e. `/api/[id].ts`).
   if (isDynamicRoute(entrypointWithoutExt)) {
-    await updateRoutesManifest({
+    await _experimental_updateRoutesManifest({
       workPath,
       dynamicRoutes: [pageToRoute(entrypointWithoutExt)],
     });

packages/plugin-python/package.json

@@ -1,7 +1,7 @@
 {
   "private": false,
   "name": "vercel-plugin-python",
-  "version": "1.0.0-canary.27",
+  "version": "1.0.0-canary.36",
   "main": "dist/index.js",
   "license": "MIT",
   "files": [
@@ -17,8 +17,8 @@
     "prepublishOnly": "tsc"
   },
   "dependencies": {
-    "@vercel/build-utils": "2.12.3-canary.38",
-    "@vercel/python": "2.1.2-canary.1"
+    "@vercel/build-utils": "2.13.0",
+    "@vercel/python": "2.1.2-canary.2"
   },
   "devDependencies": {
     "@types/node": "*",

packages/plugin-python/src/index.ts

@@ -1,6 +1,10 @@
-import { convertRuntimeToPlugin } from '@vercel/build-utils';
+import { _experimental_convertRuntimeToPlugin } from '@vercel/build-utils';
 import * as python from '@vercel/python';
 
-export const build = convertRuntimeToPlugin(python.build, 'vercel-plugin-python', '.py');
+export const build = _experimental_convertRuntimeToPlugin(
+  python.build,
+  'vercel-plugin-python',
+  '.py'
+);
 
 //export const startDevServer = python.startDevServer;

packages/plugin-ruby/package.json

@@ -1,7 +1,7 @@
 {
   "private": false,
   "name": "vercel-plugin-ruby",
-  "version": "1.0.0-canary.26",
+  "version": "1.0.0-canary.35",
   "main": "dist/index.js",
   "license": "MIT",
   "files": [
@@ -17,7 +17,7 @@
     "prepublishOnly": "tsc"
   },
   "dependencies": {
-    "@vercel/build-utils": "2.12.3-canary.38",
+    "@vercel/build-utils": "2.13.0",
     "@vercel/ruby": "1.2.10-canary.0"
   },
   "devDependencies": {

packages/plugin-ruby/src/index.ts

@@ -1,6 +1,10 @@
-import { convertRuntimeToPlugin } from '@vercel/build-utils';
+import { _experimental_convertRuntimeToPlugin } from '@vercel/build-utils';
 import * as ruby from '@vercel/ruby';
 
-export const build = convertRuntimeToPlugin(ruby.build, 'vercel-plugin-ruby', '.rb');
+export const build = _experimental_convertRuntimeToPlugin(
+  ruby.build,
+  'vercel-plugin-ruby',
+  '.rb'
+);
 
 //export const startDevServer = ruby.startDevServer;

packages/python/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/python",
-  "version": "2.1.2-canary.1",
+  "version": "2.1.2-canary.2",
   "main": "./dist/index.js",
   "license": "MIT",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/python",

packages/python/src/install.ts

@@ -1,4 +1,3 @@
-import { relative, basename } from 'path';
 import execa from 'execa';
 import { Meta, debug } from '@vercel/build-utils';
 
@@ -136,17 +135,10 @@ export async function installRequirementsFile({
   meta,
   args = [],
 }: InstallRequirementsFileArg) {
-  const fileAtRoot = relative(workPath, filePath) === basename(filePath);
-
-  // If the `requirements.txt` file is located in the Root Directory of the project and
-  // the new File System API is used (`avoidTopLevelInstall`), the Install Command
-  // will have already installed its dependencies, so we don't need to do it again.
-  if (meta.avoidTopLevelInstall && fileAtRoot) {
-    debug(
-      `Skipping requirements file installation, already installed by Install Command`
-    );
-    return;
-  }
+  // The Vercel platform already handles `requirements.txt` for frontend projects,
+  // but the installation logic there is different, because it seems to install all
+  // of the dependencies globally, whereas, for this Runtime, we want it to happen only
+  // locally, so we'll run a separate installation.
 
   if (
     meta.isDev &&