[zsh] Move func/ directory to zsh/functions

zsh/functions/prepend_to_path

@@ -0,0 +1,38 @@
+# Eryn Wells <eryn@erynwells.me>
+
+prepend_to_path() {
+    local should_export_path=1
+    local should_be_verbose=0
+
+    while getopts "ve" opt; do
+        case $opt in
+            "e") should_export_path=1;;
+            "+e") should_export_path=0;;
+            "v") should_be_verbose=1;;
+            *) ;;
+        esac
+    done
+
+    local result=1
+    local path_to_add=$@[$OPTIND]
+
+    if [[ -d "$path_to_add" ]]; then
+        if (( $should_be_verbose )); then
+            echo "Prepending $path_to_add to \$path"
+        fi
+        path=("$path_to_add" $path)
+    else
+        if (( $should_be_verbose  )); then
+            echo "$path_to_add doesn't exist"
+        fi
+        result=0
+    fi
+
+    if (( $should_export_path )); then
+        export path
+    fi
+
+    return $result
+}
+
+prepend_to_path "$@"