started a function library for bash

bashlib/bashlib.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -e
+
+function onOSX () {
+    return [[ $(uname) == "Darwin" ]]
+}
+
+function findLocalService () {
+
+    local SVC="$1"
+
+    if onOSX; then
+        local OUT="$(
+            echo -e "spawn -noecho dns-sd -Z $SVC\nexpect -timeout 1 eof {}" | 
+            expect -f - |
+            grep SRV | egrep -v '^\s*;'
+        )"
+        local PORT="$(echo $OUT | awk '{print $5}')"
+        local HOST="$(echo $OUT | awk '{print $6}')"
+    else
+        # linux only for now
+        local OUT="$(avahi-browse -p -t -r $SVC | grep '^=' | head -1)"
+        local NAME="$(echo \"$AL\" | cut -d';' -f 8)"
+        local PORT="$(echo \"$AL\" | cut -d';' -f 9)"
+    fi
+
+    echo $HOST:$PORT
+}