[all] Remove now prefix in packages (#5928)

* remove prefix from codeowners

* remove references from ignore files

* Remove prefix from package json and tests

* Add run js without prefixes

* Rename package folders

* Delete auto generated test files

* Remove now-node in integration test

* Put back deleted vercel json files

* Remove eol

* Add styfle suggestion to comment in utils/run.js

Co-authored-by: Steven <steven@ceriously.com>

packages/ruby/install-ruby.ts

@@ -0,0 +1,92 @@
+import { join } from 'path';
+import { intersects } from 'semver';
+import execa from 'execa';
+import buildUtils from './build-utils';
+import { Meta, NodeVersion } from '@vercel/build-utils';
+const { debug, NowBuildError } = buildUtils;
+
+interface RubyVersion extends NodeVersion {
+  minor: number;
+}
+
+const allOptions: RubyVersion[] = [
+  { major: 2, minor: 7, range: '2.7.x', runtime: 'ruby2.7' },
+  { major: 2, minor: 5, range: '2.5.x', runtime: 'ruby2.5' },
+];
+
+function getLatestRubyVersion(): RubyVersion {
+  return allOptions[0];
+}
+
+function getRubyPath(meta: Meta, gemfileContents: string) {
+  let selection = getLatestRubyVersion();
+  if (meta.isDev) {
+    throw new Error(
+      'Ruby is in the early alpha stage and does not support vercel dev at this time.'
+    );
+  } else if (gemfileContents) {
+    const line = gemfileContents
+      .split('\n')
+      .find(line => line.startsWith('ruby'));
+    if (line) {
+      const strVersion = line
+        .slice(4)
+        .trim()
+        .slice(1, -1)
+        .replace('~>', '');
+      const found = allOptions.some(o => {
+        // The array is already in order so return the first
+        // match which will be the newest version.
+        selection = o;
+        return intersects(o.range, strVersion);
+      });
+      if (!found) {
+        throw new NowBuildError({
+          code: 'RUBY_INVALID_VERSION',
+          message: 'Found `Gemfile` with invalid Ruby version: `' + line + '`.',
+          link:
+            'https://vercel.com/docs/runtimes#official-runtimes/ruby/ruby-version',
+        });
+      }
+    }
+  }
+
+  const { major, minor, runtime } = selection;
+  const gemHome = '/ruby' + major + minor;
+  const result = {
+    gemHome,
+    runtime,
+    rubyPath: join(gemHome, 'bin', 'ruby'),
+    gemPath: join(gemHome, 'bin', 'gem'),
+    vendorPath: `vendor/bundle/ruby/${major}.${minor}.0`,
+  };
+  debug(JSON.stringify(result, null, ' '));
+  return result;
+}
+
+// downloads and installs `bundler` (respecting
+// process.env.GEM_HOME), and returns
+// the absolute path to it
+export async function installBundler(meta: Meta, gemfileContents: string) {
+  const { gemHome, rubyPath, gemPath, vendorPath, runtime } = getRubyPath(
+    meta,
+    gemfileContents
+  );
+
+  debug('installing bundler...');
+  await execa(gemPath, ['install', 'bundler', '--no-document'], {
+    stdio: 'pipe',
+    env: {
+      GEM_HOME: gemHome,
+    },
+  });
+
+  return {
+    gemHome,
+    rubyPath,
+    gemPath,
+    vendorPath,
+    runtime,
+    bundlerPath: join(gemHome, 'bin', 'bundler'),
+  };
+}