add ability to import secrets with comments

frontend/components/utilities/parseDotEnv.ts

@@ -0,0 +1,66 @@
+const LINE =
+  /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/gm;
+
+/**
+ * Return text that is the buffer parsed
+ * @param {ArrayBuffer} src - source buffer
+ * @returns {String} text - text of buffer
+ */
+export function parseDotEnv(src: ArrayBuffer) {
+  const object: {
+    [key: string]: { value: string; comments: string[] };
+  } = {};
+
+  // Convert buffer to string
+  let lines = src.toString();
+
+  // Convert line breaks to same format
+  lines = lines.replace(/\r\n?/gm, '\n');
+
+  let comments: string[] = [];
+
+  lines
+    .split('\n')
+    .map((line) => {
+      // collect comments of each env variable
+      if (line.startsWith('#')) {
+        comments.push(line.replace('#', '').trim());
+      } else if (line) {
+        let match;
+        let item: [string, string, string[]] | [] = [];
+
+        while ((match = LINE.exec(line)) !== null) {
+          const key = match[1];
+
+          // Default undefined or null to empty string
+          let value = match[2] || '';
+
+          // Remove whitespace
+          value = value.trim();
+
+          // Check if double quoted
+          const maybeQuote = value[0];
+
+          // Remove surrounding quotes
+          value = value.replace(/^(['"`])([\s\S]*)\1$/gm, '$2');
+
+          // Expand newlines if double quoted
+          if (maybeQuote === '"') {
+            value = value.replace(/\\n/g, '\n');
+            value = value.replace(/\\r/g, '\r');
+          }
+          item = [key, value, comments];
+        }
+        comments = [];
+        return item;
+      }
+      return [];
+    })
+    .filter((line) => line.length > 1)
+    .forEach((line) => {
+      const [key, value, comments] = line;
+      object[key as string] = { value, comments };
+    });
+
+  return object;
+}