Merge branch 'master' into fabric_task_description

2 files changed, 46 insertions, 4 deletions

diff --git a/plugins/chruby/README.md b/plugins/chruby/README.md
new file mode 100644
index 000000000..d373006a5
--- /dev/null
+++ b/plugins/chruby/README.md
@@ -0,0 +1,20 @@
+# chruby plugin
+
+This plugin loads [chruby](https://github.com/postmodern/chruby), a tool that changes the
+current Ruby version, and completion and a prompt function to display the Ruby version.
+Supports brew and manual installation of chruby.
+
+To use it, add `chruby` to the plugins array in your zshrc file:
+```zsh
+plugins=(... chruby)
+```
+
+## Usage
+
+If you'd prefer to specify an explicit path to load chruby from
+you can set variables like so:
+
+```
+zstyle :omz:plugins:chruby path /local/path/to/chruby.sh
+zstyle :omz:plugins:chruby auto /local/path/to/auto.sh
+```
diff --git a/plugins/chruby/chruby.plugin.zsh b/plugins/chruby/chruby.plugin.zsh
index 758b4a56c..f7fedb5f2 100644
--- a/plugins/chruby/chruby.plugin.zsh
+++ b/plugins/chruby/chruby.plugin.zsh
@@ -16,12 +16,28 @@
 # rvm and rbenv plugins also provide this alias
 alias rubies='chruby'
 
+
 _homebrew-installed() {
     whence brew &> /dev/null
+    _xit=$?
+    if [ $_xit -eq 0 ];then
+    	# ok , we have brew installed
+	# speculatively we check default brew prefix
+        if [ -h  /usr/local/opt/chruby ];then
+		_brew_prefix="/usr/local/opt/chruby"
+	else
+		# ok , it is not default prefix 
+		# this call to brew is expensive ( about 400 ms ), so at least let's make it only once
+		_brew_prefix=$(brew --prefix chruby)
+	fi
+	return 0
+   else
+        return $_xit
+   fi
 }
 
 _chruby-from-homebrew-installed() {
-  [ -r $(brew --prefix chruby) ] &> /dev/null
+  [ -r _brew_prefix ] &> /dev/null
 }
 
 _ruby-build_installed() {
@@ -64,8 +80,8 @@ _chruby_dirs() {
 }
 
 if _homebrew-installed && _chruby-from-homebrew-installed ; then
-    source $(brew --prefix chruby)/share/chruby/chruby.sh
-    source $(brew --prefix chruby)/share/chruby/auto.sh
+    source $_brew_prefix/share/chruby/chruby.sh
+    source $_brew_prefix/share/chruby/auto.sh
     _chruby_dirs
 elif [[ -r "/usr/local/share/chruby/chruby.sh" ]] ; then
     source /usr/local/share/chruby/chruby.sh
@@ -95,5 +111,11 @@ function chruby_prompt_info() {
 }
 
 # complete on installed rubies
-_chruby() { compadd $(chruby | tr -d '* ') }
+_chruby() {
+    compadd $(chruby | tr -d '* ')
+    local default_path='/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
+    if PATH=${default_path} type ruby &> /dev/null; then
+        compadd system
+    fi
+}
 compdef _chruby chruby