Separated index file into smaller files

Summary: More is more. Just moving code, no further changes.

Reviewed By: nikoant

Differential Revision: D22374891

fbshipit-source-id: 65c9af8b4b34ee8e16aeae5705528093e1c800cc

desktop/plugins/logs/logUtils.tsx

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export function getLineCount(str: string): number {
+  let count = 1;
+  if (!(typeof str === 'string')) {
+    return 0;
+  }
+  for (let i = 0; i < str.length; i++) {
+    if (str[i] === '\n') {
+      count++;
+    }
+  }
+  return count;
+}
+
+export function keepKeys<A>(obj: A, keys: Array<string>): A {
+  const result: A = {} as A;
+  for (const key in obj) {
+    if (keys.includes(key)) {
+      result[key] = obj[key];
+    }
+  }
+  return result;
+}
+
+export function pad(chunk: any, len: number): string {
+  let str = String(chunk);
+  while (str.length < len) {
+    str = `0${str}`;
+  }
+  return str;
+}