Added hg repo status to robbyrussell example prompt

share/tools/web_config/sample_prompts/robbyrussell.fish

@@ -1,5 +1,5 @@
 # name: Robbyrussell
-# author: Bruno Ferreira Pinto
+# author: Bruno Ferreira Pinto, Pawel Zubrycki
 
 function fish_prompt
 
@@ -12,6 +12,38 @@ function fish_prompt
     function _is_git_dirty
       echo (git status -s --ignore-submodules=dirty ^/dev/null)
     end
+
+    function _is_git_repo
+      git status -s >/dev/null ^/dev/null
+    end
+
+    function _hg_branch_name
+      echo (hg branch ^/dev/null)
+    end
+
+    function _is_hg_dirty
+      echo (hg status -mard ^/dev/null)
+    end
+
+    function _is_hg_repo
+      hg summary >/dev/null ^/dev/null
+    end
+
+    function _repo_branch_name
+      eval "_$argv[1]_branch_name"
+    end
+
+    function _is_repo_dirty
+      eval "_is_$argv[1]_dirty"
+    end
+
+    function _repo_type
+      if _is_hg_repo
+        echo 'hg'
+      else if _is_git_repo
+        echo 'git'
+      end
+    end
   end
 
   set -l cyan (set_color -o cyan)
@@ -21,17 +53,22 @@ function fish_prompt
   set -l normal (set_color normal)
 
   set -l arrow "$red➜ "
+  if [ $USER = 'root' ]
+    set arrow "$red# "
+  end
+
   set -l cwd $cyan(basename (prompt_pwd))
 
-  if [ (_git_branch_name) ]
-    set -l git_branch $red(_git_branch_name)
-    set git_info "$blue git:($git_branch$blue)"
+  set -l repo_type (_repo_type)
+  if [ $repo_type ]
+    set -l repo_branch $red(_repo_branch_name $repo_type)
+    set repo_info "$blue $repo_type:($repo_branch$blue)"
 
-    if [ (_is_git_dirty) ]
+    if [ (_is_repo_dirty $repo_type) ]
       set -l dirty "$yellow ✗"
-      set git_info "$git_info$dirty"
+      set repo_info "$repo_info$dirty"
     end
   end
 
-  echo -n -s $arrow ' '$cwd $git_info $normal ' '
+  echo -n -s $arrow ' '$cwd $repo_info $normal ' '
 end