chore: Converting a bash script into a javascript file

frontend/update-git-hash.js

@@ -0,0 +1,27 @@
+// @ts-check
+const fs = require('fs')
+const childProcess = require('child_process')
+
+const gitHash = String(childProcess.execSync('git rev-parse HEAD')).trim()
+
+/**
+ * @template T
+ * @param {() => T} fn
+ * @param {T} defaultValue
+ * @returns
+ */
+function catchDefault(fn, defaultValue) {
+  try {
+    return fn()
+  } catch {
+    return defaultValue
+  }
+}
+
+const origConfig = catchDefault(
+  /** @returns {{gitHash?: string}} */
+  () => JSON.parse(fs.readFileSync('./config.json')),
+  {},
+)
+origConfig.gitHash = gitHash
+fs.writeFileSync('./config.json', JSON.stringify(origConfig, null, 2))