move to vercel

.gitignore

@@ -1,10 +1,2 @@
-/target
-/dist
-**/*.rs.bk
-Cargo.lock
-bin/
-pkg/
-wasm-pack.log
-worker/
-node_modules/
-.cargo-ok
+.vercel/
+.vercel

README.md

@@ -65,4 +65,4 @@ See [DEVELOPMENT.md](./docs/development.md).
 
 ## Supported by CodeSandbox
 
-This project is [officially supported](https://codesandbox.io/docs/importing#using-githubboxcom) and sponsored by CodeSandbox. 
+This project is [officially supported](https://codesandbox.io/docs/importing#using-githubboxcom) and sponsored by CodeSandbox.

docs/development.md

@@ -1,30 +1,84 @@
 ## githubbox
 
-The site uses Cloudflare Workers to redirect visitors to CodeSandbox.
+The site is a static [Vercel](https://vercel.com/) deployment which redirects
+visitors to CodeSandbox. There is no application code: the redirects are
+declared in `vercel.json` and handled by Vercel's CDN, so they run in every
+region without invoking a function.
 
 See [redirect.md](./redirect.md) for the redirect setup.
 
-## Editing the worker
+## Layout
 
-To edit the worker, open `src/index.js`.
-The `src` directory contains the Cloudflare worker.
+- `vercel.json` holds the redirect rules
+- `public/robots.txt` is served as a static file. Vercel serves this project's
+  static files out of `public/`, so a `robots.txt` at the repo root is not
+  reachable — it has to live here
 
-## Building and publishing a new version
+## Editing
 
-You need to install [wrangler](https://github.com/cloudflare/wrangler) globally.
+To edit the redirect logic, open `vercel.json`. The rules are matched in order,
+first match wins:
 
-### Publishing to development
+| Source                          | Goes to                                    |
+| ------------------------------- | ------------------------------------------ |
+| `/` and `/index.html`           | this repo on GitHub                        |
+| `/:owner/:repo/blob/:ref/:file+` | the sandbox for `:ref`, with `:file` opened |
+| `/:owner/:repo/tree/:rest+`     | the sandbox for that branch, tag or commit |
+| `/:owner/:repo`                 | the sandbox for the repo's default branch  |
+
+Anything else falls through to a 404, which is what we want for paths like
+`/issues` or `/zeit/ms/stargazers`.
+
+The `+` modifier requires at least one segment, so `/zeit/ms/tree` alone is a
+404 rather than a redirect to an empty ref.
+
+## Running locally
+
+```
+vercel dev
+```
+
+Then check http://localhost:3000/zeit/ms
+
+## Testing
+
+There is nothing to unit test, so verify against a deployment instead. Point
+`BASE` at a preview URL and check the `location` headers:
+
+```
+BASE=https://githubbox.com
+for path in \
+  / \
+  /zeit/ms \
+  /zeit/ms/ \
+  /zeit/ms/tree/main \
+  /zeit/ms/tree/2.1.1 \
+  /zeit/ms/blob/main/package.json \
+  /zeit/ms/blob/main/lib/index.js \
+  /robots.txt \
+  /issues \
+  /zeit/ms/stargazers
+do
+  echo "$path -> $(curl -sI "$BASE$path" | head -n1 | tr -d '\r')"
+done
+```
+
+The last two should be 404s. `/robots.txt` should be a 200.
+
+## Deploying
+
+### Preview
 
 ```
-yarn pub
+vercel
 ```
 
-Then check https://githubbox.dferber.workers.dev/
+Then check the preview URL that gets printed.
 
-### Publishing to production
+### Production
 
 ```
-yarn pub:prod
+vercel --prod
 ```
 
 Then check https://githubbox.com
@@ -34,9 +88,9 @@ Then check https://githubbox.com
 All these forms of URLs are supported.
 
 - main [githubbox.com/zeit/ms](https://githubbox.com/zeit/ms)
-- branch [githubbox.com/zeit/ms/tree/master](https://githubbox.com/zeit/ms/tree/master)
+- branch [githubbox.com/zeit/ms/tree/main](https://githubbox.com/zeit/ms/tree/main)
 - tree [githubbox.com/zeit/ms/tree/2.1.1](https://githubbox.com/zeit/ms/tree/2.1.1)
 - commit [githubbox.com/zeit/ms/tree/7920885eb232fbe7a5efdab956d3e7c507c92ddf](https://githubbox.com/zeit/ms/tree/7920885eb232fbe7a5efdab956d3e7c507c92ddf)
-- branch with file [githubbox.com/zeit/ms/blob/master/package.json](https://githubbox.com/zeit/ms/blob/master/package.json)
+- branch with file [githubbox.com/zeit/ms/blob/main/package.json](https://githubbox.com/zeit/ms/blob/main/package.json)
 - tree with file [githubbox.com/zeit/ms/blob/2.0.0/index.js](https://githubbox.com/zeit/ms/blob/2.0.0/index.js)
 - commit with file [githubbox.com/zeit/ms/blob/adf1eb282d29fe3c405d205a3854177b86a97c1f/index.js](https://githubbox.com/zeit/ms/blob/adf1eb282d29fe3c405d205a3854177b86a97c1f/index.js)

public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

vercel.json

@@ -0,0 +1,32 @@
+{
+  "$schema": "https://openapi.vercel.sh/vercel.json",
+  "outputDirectory": "public",
+  "trailingSlash": false,
+  "redirects": [
+    {
+      "source": "/",
+      "destination": "https://github.com/dferber90/githubbox",
+      "statusCode": 302
+    },
+    {
+      "source": "/index.html",
+      "destination": "https://github.com/dferber90/githubbox",
+      "statusCode": 302
+    },
+    {
+      "source": "/:owner/:repo/blob/:ref/:file+",
+      "destination": "https://codesandbox.io/s/github/:owner/:repo/tree/:ref?file=/:file+",
+      "statusCode": 302
+    },
+    {
+      "source": "/:owner/:repo/tree/:rest+",
+      "destination": "https://codesandbox.io/s/github/:owner/:repo/tree/:rest+",
+      "statusCode": 302
+    },
+    {
+      "source": "/:owner/:repo",
+      "destination": "https://codesandbox.io/s/github/:owner/:repo",
+      "statusCode": 302
+    }
+  ]
+}