feature: add max length feature to cwd

scripts/cwd.sh

@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
 
+current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source "$current_dir/utils.sh"
+
 # return current working directory of tmux pane
 getPaneDir() {
   nextone="false"
@@ -13,10 +16,34 @@ getPaneDir() {
 }
 
 main() {
-  path=$(getPaneDir)
+  path="$(getPaneDir)"
+
+  if [[ "$path" == "$HOME" ]]; then
+    echo "~"
+    exit 0
+  fi
 
   # change '/home/user' to '~'
-  cwd="${path/"$HOME"/'~'}"
+  cwd="${path/"${HOME}/"/'~/'}"
+
+  # check max number of subdirs to display. 0 means unlimited
+  cwd_max_dirs="$(get_tmux_option "@dracula-cwd-max-dirs" "0")"
+
+  if [[ "$cwd_max_dirs" -gt 0 ]]; then
+    base_to_erase=$cwd
+    for ((i = 0 ; i < cwd_max_dirs ; i++)); do
+      base_to_erase="${base_to_erase%/*}"
+    done
+    # / would have #base_to_erase of 0 and ~/ has #base_to_erase of 1. we want to exclude both cases
+    if [[ ${#base_to_erase} -gt 1 ]]; then
+      cwd="…/${cwd:${#base_to_erase}+1}"
+    fi
+  fi
+
+  cwd_max_chars="$(get_tmux_option "@dracula-cwd-max-chars" "0")"
+  if [[ "${cwd_max_chars}" -gt 0 && "${#cwd}" -gt "$cwd_max_chars" ]]; then
+    cwd="…/…${cwd:(- cwd_max_chars)}"
+  fi
 
   echo "$cwd"
 }