Database build script.

scripts/common.js

@@ -0,0 +1,29 @@
+const { spawn } = require('child_process');
+
+function getDatabase() {
+  return process.env.DATABASE_URL.split(':')[0];
+}
+
+function runCommand(cmd, args = []) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(cmd, args);
+
+    child.stdout.on('data', data => process.stdout.write(data));
+
+    child.stderr.on('data', data => process.stdout.write(data));
+
+    child.on('error', err => reject(err));
+
+    child.on('exit', (code, signal) => resolve({ code, signal }));
+  });
+}
+
+function getNpmCommand() {
+  return /^win/.test(process.platform) ? 'npm.cmd' : 'npm';
+}
+
+module.exports = {
+  getDatabase,
+  runCommand,
+  getNpmCommand,
+};