Update the prompt

.config/zsh/.zshrc

@@ -2,7 +2,41 @@
 
 # Enable colors and set prompt
 autoload -U colors && colors
-PS1="%B%{$fg[red]%}[%{$fg[yellow]%}%n%{$fg[green]%}@%{$fg[blue]%}%M %{$fg[magenta]%}%~%{$fg[red]%}]%{$reset_color%}$%b "
+setopt prompt_subst
+
+function git_prompt_info() {
+    local STATUS
+    # Use the dotfiles git repo if in the home directory
+    if [[ "$PWD" = "$HOME" ]]; then
+        STATUS=$(git --git-dir "$HOME/.config/dotfiles/.git" --work-tree "$HOME" status --porcelain | tail -1)
+    else
+        if ! git rev-parse --git-dir &> /dev/null; then
+            return 0
+        fi
+        STATUS=$(git status --porcelain | tail -1)
+    fi
+
+    if [[ -n $STATUS ]]; then
+        echo "%{$fg[yellow]%} %{$fg[reset_color]%}"
+    fi
+}
+
+function git_current_branch {
+    # No need to show the branch for the home directory
+    local ref
+    ref=$(git symbolic-ref --quiet HEAD 2> /dev/null)
+    local ret=$?
+    if [[ $ret != 0  ]]; then
+        [[ $ret == 128 ]] && return # no git repo
+        ref=$(git rev-parse --short HEAD 2> /dev/null) || return
+    fi
+    echo ${ref#refs/heads/}
+}
+
+# %B (%b) for bold | %c shows the top directory
+PS1='%B%(?:%{$fg[green]%} :%{$fg[red]%} )%{$fg[magenta]%}%c $(git_prompt_info)%b'
+RPS1='%{$fg[blue]%}$(git_current_branch)'
+
 setopt autocd # Automatically cd into typed directory.
 stty stop undef # Disable ctrl-s to freeze terminal.
 setopt interactive_comments