Merge remote-tracking branch 'upstream/master'

plugins/rbenv/rbenv.plugin.zsh

@@ -2,22 +2,22 @@ _homebrew-installed() {
   type brew &> /dev/null
 }
 
-_rbenv-from-homebrew-installed() {
-  brew --prefix rbenv &> /dev/null
-}
-
 FOUND_RBENV=0
-rbenvdirs=("$HOME/.rbenv" "/usr/local/rbenv" "/opt/rbenv")
-if _homebrew-installed && _rbenv-from-homebrew-installed ; then
-    rbenvdirs=($(brew --prefix rbenv) "${rbenvdirs[@]}")
+rbenvdirs=("$HOME/.rbenv" "/usr/local/rbenv" "/opt/rbenv" "/usr/local/opt/rbenv")
+if _homebrew-installed && rbenv_homebrew_path=$(brew --prefix rbenv 2>/dev/null); then
+    rbenvdirs=($rbenv_homebrew_path "${rbenvdirs[@]}")
+    unset rbenv_homebrew_path
 fi
 
 for rbenvdir in "${rbenvdirs[@]}" ; do
   if [ -d $rbenvdir/bin -a $FOUND_RBENV -eq 0 ] ; then
     FOUND_RBENV=1
-    export RBENV_ROOT=$rbenvdir
+    if [[ $RBENV_ROOT = '' ]]; then
+      RBENV_ROOT=$rbenvdir
+    fi
+    export RBENV_ROOT
     export PATH=${rbenvdir}/bin:$PATH
-    eval "$(rbenv init - zsh)"
+    eval "$(rbenv init --no-rehash - zsh)"
 
     alias rubies="rbenv versions"
     alias gemsets="rbenv gemset list"
@@ -32,11 +32,11 @@ for rbenvdir in "${rbenvdirs[@]}" ; do
 
     function gems {
       local rbenv_path=$(rbenv prefix)
-      gem list $@ | sed \
-        -Ee "s/\([0-9\.]+( .+)?\)/$fg[blue]&$reset_color/g" \
-        -Ee "s|$(echo $rbenv_path)|$fg[magenta]\$rbenv_path$reset_color|g" \
-        -Ee "s/$current_ruby@global/$fg[yellow]&$reset_color/g" \
-        -Ee "s/$current_ruby$current_gemset$/$fg[green]&$reset_color/g"
+      gem list $@ | sed -E \
+        -e "s/\([0-9a-z, \.]+( .+)?\)/$fg[blue]&$reset_color/g" \
+        -e "s|$(echo $rbenv_path)|$fg[magenta]\$rbenv_path$reset_color|g" \
+        -e "s/$current_ruby@global/$fg[yellow]&$reset_color/g" \
+        -e "s/$current_ruby$current_gemset$/$fg[green]&$reset_color/g"
     }
 
     function rbenv_prompt_info() {