add new bash options

bash/.bashrc

@@ -1,8 +1,29 @@
-[ -z "$PS1" ] && return
+[[ $- != *i* ]] && return
 
 shopt -s autocd
+shopt -s checkwinsize
+shopt -s noclobber
+shopt -s histappend
+shopt -s cmdhist
 
-PS1='\u@\h \w \$ '
+HISTFILESIZE=100000
+export HISTCONTROL="ignoredups"
+
+git_branch() {
+  branch=$(git branch 2>/dev/null | grep '^*' | colrm 1 2)
+  if [ ! -z "$branch" ]; then
+    if [ -n "$(git status --porcelain)" ]; then
+      color="31"  # Red for changes
+    elif [ "$(git stash list)" ]; then
+      color="33"  # Yellow for stashed changes
+    else
+      color="32"  # Green for a clean state
+    fi
+    echo -e "\\e[0;${color}m${branch}\\e[0m"  
+  fi
+}
+
+PS1='\[\e[1;32m\]\u@\h \[\e[1;34m\]\w \$(git_branch) \[\e[0m\]\$ '
 
 [ -f "$XDG_CONFIG_HOME/shell/shortcuts" ] && . "$XDG_CONFIG_HOME/shell/shortcuts"