add git prompt

fish/.config/fish/functions/fish_prompt.fish

@@ -0,0 +1,36 @@
+function __bcarlin_prompt_suffix
+  set -l color_suffix
+  set -l suffix "➜"
+
+  switch $USER
+    case root toor
+      if set -q fish_color_cwd_root
+		echo root if
+        set color_suffix $fish_color_cwd_root
+      else
+        set color_suffix $fish_color_cwd
+      end
+    case '*'
+      set color_suffix $fish_color_cwd
+  end
+
+  echo -n -s (set_color $color_suffix --bold) "$suffix" (set_color normal)
+end
+
+function __bcarlin_prompt_git
+  set -l git_branch (git rev-parse --abbrev-ref HEAD)
+  if test $status -ne 0
+    echo -n -s ''
+    return
+  end
+
+  echo -n -s  (set_color blue) ± (set_color normal) '('
+  echo -n -s (set_color red --bold) $git_branch (set_color normal)
+  echo -n -s ')'
+end
+
+function fish_prompt --description 'Write out the prompt'
+  set -l _pwd (set_color $fish_color_cwd) (prompt_pwd) 
+
+  echo -n -s "$USER" @ (prompt_hostname) ' ' $_pwd ' ' (__bcarlin_prompt_git) ' ' (__bcarlin_prompt_suffix) ' '
+end