Add fish config

config/fish/functions/cd.fish

@@ -0,0 +1,36 @@
+# vim: se ts=4:
+
+function cd --description 'Change directory'
+	# Skip history in subshells
+	if status --is-command-substitution
+		builtin cd $argv
+		return $status
+	end
+
+	# Avoid set completions
+	set -l previous $PWD
+
+	if test $argv[1] = - ^/dev/null
+		if test "$__fish_cd_direction" = next ^/dev/null
+			nextd
+		else
+			prevd
+		end
+		return $status
+	end
+
+	builtin cd $argv[1]
+	set -l cd_status $status
+
+	if test $cd_status = 0 -a "$PWD" != "$previous"
+		set -g dirprev $dirprev $previous
+		set -e dirnext
+		set -g __fish_cd_direction prev
+	end
+
+	if test $cd_status = 0
+		ls
+	end
+
+	return $cd_status
+end