split the direnv call into a shared function

Author: alanbbr

fish/cd.fish

@@ -1,3 +1,9 @@
+function _direnv
+  if test $argv[1] = 0 -a -n "$__fish_direnv"
+  	set -l direnv (eval $__fish_direnv export fish)
+    eval $direnv
+  end
+end
 #
 # The following functions add support for a directory history
 #
@@ -7,12 +13,8 @@ function cd --description "Change directory"
 	# Skip history in subshells
 	if status --is-command-substitution
 		builtin cd $argv
-    	set -l cd_status $status
-    	if test $cd_status = 0 -a -n "$__fish_direnv"
-    		set -l direnv (eval $__fish_direnv export fish)
-            eval $direnv
-    	end
-
+  	set -l cd_status $status
+    _direnv $status
 		return $cd_status
 	end
 
@@ -26,10 +28,7 @@ function cd --description "Change directory"
 			prevd
 		end
     	set -l cd_status $status
-    	if test $cd_status = 0 -a -n "$__fish_direnv"
-    		set -l direnv (eval $__fish_direnv export fish)
-            eval $direnv
-    	end
+      _direnv $cd_status
 		return $cd_status
 	end
 
@@ -42,10 +41,7 @@ function cd --description "Change directory"
 		set -g __fish_cd_direction prev
 	end
 
-	if test $cd_status = 0 -a -n "$__fish_direnv"
-		set -l direnv (eval $__fish_direnv export fish)
-        eval $direnv
-	end
+  _direnv $cd_status
 
 	return $cd_status
 end