Abstracted tag loading

Using the utility script.

scripts/util.js

@@ -23,4 +23,29 @@ const readSnippets = snippetsPath => {
   }
   return snippets;
 }
-module.exports = {readSnippets};
+// Used in `readTags`
+const objectFromPairs = arr => arr.reduce((a, v) => ((a[v[0]] = v[1]), a), {});
+// Load tag data from the database
+const readTags = () => {
+  let tagDbData = {};
+  try {
+    tagDbData = objectFromPairs(
+      fs
+        .readFileSync('tag_database', 'utf8')
+        .split('\n')
+        .slice(0, -1)
+        .map(v => {
+          let data = v.split(':').slice(0, 2);
+          data[1] = data[1].split(',').map(t => t.trim());
+          return data;
+        })
+    );
+
+  } catch (err) {
+    // Handle errors (hopefully not!)
+    console.log(`${chalk.red('ERROR!')} During tag database loading: ${err}`);
+    process.exit(1);
+  }
+  return tagDbData;
+}
+module.exports = {readSnippets, readTags};