Joins ruby prompt files and adds ruby_prompt_info.

lib/chruby.zsh

@@ -1,4 +0,0 @@
-# using the chruby plugin will override this with a real implementation
-function chruby_prompt_info() {
-  return 1
-}

lib/rbenv.zsh

@@ -1,4 +0,0 @@
-# using the rbenv plugin will override this with a real implementation
-function rbenv_prompt_info() {
-  return 1
-}

lib/ruby_prompts.zsh

@@ -0,0 +1,22 @@
+# get the name of the rvm ruby version
+function rvm_prompt_info() {
+  [ -f $HOME/.rvm/bin/rvm-prompt ] || return 1
+  local rvm_prompt
+  rvm_prompt=$(eval "$HOME/.rvm/bin/rvm-prompt $ZSH_THEME_RVM_PROMPT_OPTIONS" 2>/dev/null)
+  [[ "${rvm_prompt}x" == "x" ]] && return 1
+  echo "${ZSH_THEME_RVM_PROMPT_PREFIX:=(}${rvm_prompt}${ZSH_THEME_RVM_PROMPT_SUFFIX:=)}"
+}
+
+# using the rbenv plugin will override this with a real implementation
+function rbenv_prompt_info() {
+  return 1
+}
+
+# using the chruby plugin will override this with a real implementation
+function chruby_prompt_info() {
+  return 1
+}
+
+function ruby_prompt_info() {
+  echo $(rvm_prompt_info || rbenv_prompt_info || chruby_prompt_info)
+}

lib/rvm.zsh

@@ -1,8 +0,0 @@
-# get the name of the ruby version
-function rvm_prompt_info() {
-  [ -f $HOME/.rvm/bin/rvm-prompt ] || return 1
-  local rvm_prompt
-  rvm_prompt=$(eval "$HOME/.rvm/bin/rvm-prompt $ZSH_THEME_RVM_PROMPT_OPTIONS" 2>/dev/null)
-  [[ "${rvm_prompt}x" == "x" ]] && return 1
-  echo "${ZSH_THEME_RVM_PROMPT_PREFIX:=(}${rvm_prompt}${ZSH_THEME_RVM_PROMPT_SUFFIX:=)}"
-}