Add upstream oh_my_zsh repo

zsh/plugins/sfffe/README.md

@@ -0,0 +1,17 @@
+# "Search files for Front-End"
+
+This plugin adds a few functions for searching files used in Front-End web development.
+
+To use it, add `sfffe` to the plugins array in your zshrc file:
+```zsh
+plugins=(... sfffe)
+```
+
+**Requires:** `ack`
+
+## Functions
+
+- `ajs`: look for string in `.js` files.
+- `acss`: look for string in `.css` files.
+- `fjs`: search for `.js` files under the current working directory.
+- `fcss`: search for `.css` files under the current working directory.

zsh/plugins/sfffe/sfffe.plugin.zsh

@@ -6,9 +6,9 @@
 #       REQUIRE:  ack
 # ------------------------------------------------------------------------------
 
-if [ ! -x $(which ack) ]; then
-    echo  \'ack\' is not installed!
-    exit -1
+if (( ! $+commands[ack] )); then
+    echo "'ack' is not installed!"
+    return
 fi
 
 ajs() {