#!/bin/sh
# set -x

if [ $# -lt 2 ]; then
  echo "usage: perf_prof iterations options [conf-name]"
  echo "example: perf_prof 100 \"-bm=default -log\" pdata"
  exit 1
fi

BINDIR=`dirname $0`

test -z "$RAILS_PERF_DATA" && RAILS_PERF_DATA=$HOME

ITER="$1"
OPT="$2"
BENCHMARK=""
RUBY_PROF_OPTS="-ruby_prof=1"
use_patched_gc="no"
warmup="-warmup "

for opt in $OPT; do
  case $opt in
  -bm=*) BENCHMARK=${opt#-bm=};;
  -ruby_prof=*) RUBY_PROF_OPTS=${opt};;
  -patched_gc) use_patched_gc="yes";;
  -warmup) warmup="";;
  esac
done

if [ "${use_patched_gc}" = "no" ]; then 
  unset RUBY_HEAP_MIN_SLOTS RUBY_GC_MALLOC_LIMIT RUBY_HEAP_FREE_MIN
fi

DATE=`date +%m-%d`
if [ $# == 3 ]; then
  BENCHMARK_FILE="$RAILS_PERF_DATA/${DATE}${BENCHMARK}.$3.html"
else
  BENCHMARK_FILE="$RAILS_PERF_DATA/perf_run${BENCHMARK}.html"
fi

unset RUBY_GC_STATS

PERF_OPTIONS="$ITER $OPT ${warmup}$RUBY_PROF_OPTS"
$BINDIR/run_urls $PERF_OPTIONS >/dev/null 2>$BENCHMARK_FILE

echo "profile data written to $BENCHMARK_FILE"

case "$OSTYPE" in
  cygwin*) cmd /c start "`cygpath -w $BENCHMARK_FILE`";;
  darwin*) open $BENCHMARK_FILE;;
esac