chore(zsh): remove starship prompt

roles/zsh/files/.zsh/configs/plugins.zsh

@@ -8,5 +8,3 @@ antigen bundle zsh-users/zsh-completions
 antigen bundle zsh-users/zsh-syntax-highlighting
 
 antigen apply
-
-eval "$(starship init zsh)"

roles/zsh/files/.zsh/configs/prompt.zsh

@@ -0,0 +1,14 @@
+source /usr/lib/git-core/git-sh-prompt
+
+setopt promptsubst
+
+git_prompt() {
+  local branch="$(git symbolic-ref HEAD 2> /dev/null | cut -d'/' -f3)"
+  local branch_truncated="${branch:0:30}"
+  if (( ${#branch} > ${#branch_truncated} )); then
+    branch="${branch_truncated}..."
+  fi
+
+  [ -n "${branch}" ] && echo " (${branch})"
+}
+export PS1="in %{$fg[blue]%}%~%{$fg[yellow]%}$(git_prompt)%{$reset_color%} %(?.$.%{$fg[red]%}$)%b "

roles/zsh/files/.zshrc

@@ -12,6 +12,7 @@ sources=(
   'path'
   'platformsh'
   'plugins'
+  'prompt'
   'post/completion'
 )