feat: add current working directory feature (#20)

scripts/cwd.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# return current working directory of tmux pane
+getPaneDir() {
+  nextone="false"
+  ret=""
+  for i in $(tmux list-panes -F "#{pane_active} #{pane_current_path}"); do
+    [ "$i" == "1" ] && nextone="true" && continue
+    [ "$i" == "0" ] && nextone="false"
+    [ "$nextone" == "true" ] && ret+="$i "
+  done
+  echo "${ret%?}"
+}
+
+# truncate the path if it's longer than 30 characters
+truncatePath() {
+  local path="$1"
+  local limit=30
+  
+  if [ ${#path} -gt $limit ]; then
+    # Split the path into an array by '/'
+    IFS='/' read -r -a path_array <<< "$path"
+    truncated_path=""
+
+    for ((i=0; i<${#path_array[@]}-1; i++)); do
+      if [ ${#path_array[i]} -gt 1 ]; then
+        truncated_path+="${path_array[i]:0:1}/"
+      else
+        truncated_path+="${path_array[i]}/"
+      fi
+    done
+
+    # Add the last component of the current directory path
+    truncated_path+="${path_array[-1]}"
+
+    echo "$truncated_path"
+  else
+    echo "$path"
+  fi
+}
+
+main() {
+  path=$(getPaneDir)
+
+  # change '/home/user' to '~'
+  cwd="${path/"$HOME"/'~'}"
+  
+  # Truncate path if it's too long
+  truncated_cwd=$(truncatePath "$cwd")
+
+  echo "$truncated_cwd"
+}
+
+#run main driver program
+main