Add utils.sh

scripts/utils.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+get_tmux_option() {
+  local option=$1
+  local default_value=$2
+  local option_value=$(tmux show-option -gqv "$option")
+  if [ -z "$option_value" ]; then
+    echo $default_value
+  else
+    echo $option_value
+  fi
+}
+
+# normalize the percentage string to always have a length of 5
+normalize_percent_len() {
+  # the max length that the percent can reach, which happens for a two digit number with a decimal house: "99.9%"
+  max_len=5
+  percent_len=${#1}
+  let diff_len=$max_len-$percent_len
+  # if the diff_len is even, left will have 1 more space than right
+  let left_spaces=($diff_len+1)/2
+  let right_spaces=($diff_len)/2
+  printf "%${left_spaces}s%s%${right_spaces}s\n" "" $1 ""
+}
+