[redwoood] Add runtime @vercel/redwood (#4676)

### Changes
- Add new Runtime: `@vercel/redwood`
- Update `run.js` script to sort packages properly

### Related
- Related to #4539 
- Related to #4535
- Depends on https://github.com/apollographql/apollo-server/pull/4311

utils/run.js

@@ -1,21 +1,30 @@
 const { execSync, spawn } = require('child_process');
 const { join, relative, sep } = require('path');
-const { readdirSync } = require('fs');
 
-if (
-  process.env.GITHUB_REPOSITORY &&
-  process.env.GITHUB_REPOSITORY !== 'vercel/vercel'
-) {
-  console.log('Detected fork, skipping tests');
-  return;
-}
+// The order matters because we must build dependencies first
+const allPackages = [
+  'frameworks',
+  'now-routing-utils',
+  'now-build-utils',
+  'now-cgi',
+  'now-client',
+  'now-node-bridge',
+  'now-next',
+  'now-node',
+  'redwood',
+  'now-static-build',
+  'now-go',
+  'now-python',
+  'now-ruby',
+  'now-cli',
+];
 
 process.chdir(join(__dirname, '..'));
 
 async function main() {
   const script = process.argv[2];
   const all = process.argv[3];
-  let matches = [];
+  let modifiedPackages = new Set(allPackages);
 
   if (!script) {
     console.error('Please provide at least one argument');
@@ -23,7 +32,6 @@ async function main() {
   }
 
   if (all === 'all') {
-    matches = readdirSync(join(__dirname, '..', 'packages'));
     console.log(`Running script "${script}" for all packages`);
   } else {
     const branch =
@@ -41,50 +49,23 @@ async function main() {
       .map(item => relative('packages', item).split(sep)[0])
       .concat('now-cli'); // Always run tests for Now CLI
 
-    matches = Array.from(new Set(changed));
-
-    if (matches.length === 0) {
-      matches.push('now-node');
-      console.log('No packages changed. Using default packages.');
-    }
+    modifiedPackages = new Set(changed);
 
     console.log(
       `Running "${script}" on branch "${branch}" with the following packages:\n`
     );
   }
 
-  // Sort the matches such that `utils` modules are compiled first,
-  // because other packages (such as builders) depend on them.
-  // We also need to ensure that `now-cli` is built last.
-
-  matches.sort((a, b) => {
-    if (a === 'now-routing-utils' && b !== 'now-routing-utils') {
-      return -1;
+  for (const pkgName of allPackages) {
+    if (modifiedPackages.has(pkgName)) {
+      console.log(` - ${pkgName}`);
     }
-    if (b === 'now-routing-utils' && a !== 'now-routing-utils') {
-      return 1;
-    }
-    if (a === 'now-build-utils' && b !== 'now-build-utils') {
-      return -1;
-    }
-    if (b === 'now-build-utils' && a !== 'now-build-utils') {
-      return 1;
-    }
-    if (a === 'now-cli' && b !== 'now-cli') {
-      return 1;
-    }
-    if (b === 'now-cli' && a !== 'now-cli') {
-      return -1;
-    }
-    return b - a;
-  });
-
-  for (const m of matches) {
-    console.log(` - ${m}`);
   }
 
-  for (const pkgName of matches) {
-    await runScript(pkgName, script);
+  for (const pkgName of allPackages) {
+    if (modifiedPackages.has(pkgName)) {
+      await runScript(pkgName, script);
+    }
   }
 }