structured main routines. implement file reporter

reporters/file.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+report () {
+  local METRIC=$1
+  local VALUE=$2
+  local DATE=$(iso_date)
+  echo $DATE $METRIC: $VALUE >> $FILE_LOCATION
+}
+
+init () {
+  if [ -z $FILE_LOCATION ]; then
+    echo "Missing configuration: \$FILE_LOCATION"
+    return 1
+  fi
+
+  if [ ! -f $FILE_LOCATION ]; then
+    touch $FILE_LOCATION
+  fi
+}
+
+docs () {
+  echo "Write to a file or named pipe."
+  echo "\$FILE_LOCATION=$FILE_LOCATION"
+}

reporters/stathat.sh

@@ -3,7 +3,7 @@
 report () {
   METRIC=$1
   VALUE=$2
-  curl -d "stat=$METRIC&ezkey=$API_KEY&value=$VALUE" http://api.stathat.com/ez
+  curl -d "stat=$METRIC&ezkey=$STATHAT_API_KEY&value=$VALUE" http://api.stathat.com/ez
 }
 
 docs () {