Renamed the 'dartc' launch script to 'dart-analysis' and adds it to dart-sdk

compiler/scripts/compiler_compare.sh

-#!/bin/bash
-#
-# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-# Compare the current working copy of the repository to either a clean copy
-# or the specified revision.
-# Along with the files created by compiler_metrics.sh, creates
-# compiler_compare[_stats_[12]].log in the working direcetory and a
-# out_compile_samples/ directory at the root of the repository,
-# which are left around for later examination.
-# These files will be destroyed on script re-run.
-
-APP=""
-REV=""
-ONE_DELTA=""
-BASE_PATH=$(pwd)
-SCRIPT_PATH=$(dirname $0)
-SCRIPT_PATH=$(cd $SCRIPT_PATH; pwd)
-RUNS=10
-
-function printHelp() {
-  exitValue=${1:1}
-  echo "Compare current changes as they relate to performance with another SVN revision"
-  echo ""
-  echo "  Usage:"
-  echo "  -a=, --app=         The dart app file to test (required)."
-  echo "  -d=, --one-delta=   The filename, relative to app, to touch in order to trigger a one-delta compile."
-  echo "  -r=, --revision=    The compiler revision to compare against (default to current repository revision)."
-  echo "  --runs=             Number of runs to test with, default $RUNS"
-  echo "  --stats             Non-destructive display of previous stats"
-  echo "  -h, --help          What you see is what you get."
-  exit $exitValue
-}
-
-function failTest() {
-  if [ ! $1 -eq 0 ]; then
-    echo $2
-    exit $1
-  fi
-}
-
-if [ $# -eq 0 ]; then
-  printHelp;
-fi
-
-for i in $*
-do
-  case $i in
-    --one-delta=*|-d=*)
-      ONE_DELTA=${i#*=}
-      COMPARE_OPTIONS+="--one-delta=$ONE_DELTA ";;
-    --app=*|-a=*)
-      APP=${i#*=}
-      APP=$( cd "$( dirname "$APP" )" && pwd )/$( basename "$APP");;
-    --revision=*|-r=*)
-      REV=${i#*=};;
-    --help|-h)
-      printHelp 0;;
-    --runs=*)
-      RUNS=${i#*=};;
-    --stats)
-      calcStats
-      exit 0;;
-    *)
-      echo "Invalid parameter: $i"
-      printhelp 1;;
-  esac
-done
-
-COMPARE_OPTIONS+="-r=$RUNS "
-
-if [ "" = "$APP" ] || [ ! -r $APP ]; then
-  echo "Required --app"
-  printHelp
-fi
-
-RESPONSE[0]="Performance: Better"
-RESPONSE[1]="Performance: No Change"
-RESPONSE[2]="Performance: Worse"
-
-# Passed: MAX deviation, Changed Amount
-# Returns: Index of RESPONSE
-function responseValue() {
-  ABS=$2
-  (( ABS = ABS < 0 ? ABS * -1 : ABS ))
-  if [ $ABS -gt $1 ]; then
-    if [ $2 -lt 0 ]; then
-      return 2
-    else
-      return 0
-    fi
-  fi
-  return 1
-}
-
-function calcStat() {
-  # Assume we're always making improvments, S2 will be presented as a larger value
-  LINEMATCH_DEV="s/${1}: .*stdev: \([0-9]*\).*/\1/p"
-  LINEMATCH_VALUE="s/${1}: average: \([0-9]*\).*/\1/p"
-  S1_DEV=$(sed -n -e "$LINEMATCH_DEV" $STAT1)
-  if [ "" != "$S1_DEV" ]; then
-    S2_DEV=$(sed -n -e "$LINEMATCH_DEV" $STAT2)
-    DEV_MAX=$(( S1_DEV < S2_DEV ? S2_DEV : S1_DEV ))
-    S1_VALUE=$(sed -n -e "$LINEMATCH_VALUE" $STAT1)
-    S2_VALUE=$(sed -n -e "$LINEMATCH_VALUE" $STAT2)
-    DIFF=$(( S2_VALUE - S1_VALUE ))
-    DIFF_PERCENT=`echo "$DIFF*100/$S2_VALUE" | bc -l | sed 's/\([0-9]*\.[0-9][0-9]\)[0-9]*/\1/'`
-    responseValue $DEV_MAX $DIFF
-    echo "$1: Before/After-ms(${S2_VALUE} / ${S1_VALUE}), stdev(${S2_DEV} / ${S1_DEV}), Difference: ${DIFF}ms (${DIFF_PERCENT}%), " ${RESPONSE[$?]}
-  fi
-  return 0
-}
-
-function calcStats() {
-  calcStat full-compile
-  calcStat zero-delta-compile
-  calcStat one-delta-compile
-}
-
-ROOT_OF_REPO=$BASE_PATH
-TEST_DIR=$BASE_PATH
-while true; do
-  ls -d .gclient > /dev/null 2>&1
-  if [ $? -eq 0 ]; then
-    echo "Root found: $ROOT_OF_REPO"
-    break;
-  fi
-  if [ "$TEST_DIR" = "/" ]; then
-    failTest 1 "Hit the root directory; no .git/ found?!"
-  fi
-  ROOT_OF_REPO=$TEST_DIR
-  cd ..
-  TEST_DIR=$(pwd)
-done
-
-# Make a temporary directory in the current path and checkout the revision
-TMP_DIR=$ROOT_OF_REPO/compiler/tmp_performance_comparisons
-mkdir -p $TMP_DIR
-
-LOG_FILE=$TMP_DIR/compiler_compare.log
-STAT1=$TMP_DIR/compiler_compare_stats_1.log
-STAT2=$TMP_DIR/compiler_compare_stats_2.log
-COMPARE_OPTIONS+="--output=$TMP_DIR "
-
-# zero out files
-echo "" > $LOG_FILE
-echo "" > $STAT1
-echo "" > $STAT2
-
-# Do the first test
-echo "Compiling dartc with your changes (mode=release)"
-cd $ROOT_OF_REPO/compiler
-gclient runhooks >> $LOG_FILE 2>&1
-../tools/build.py --mode release >> $LOG_FILE 2>&1
-failTest $? "Error compiling your location changes, check $LOG_FILE"
-
-echo "Running first test against current working copy"
-echo $SCRIPT_PATH/compiler_metrics.sh --stats-prefix=yours --dartc=./out/Release_ia32/dartc $COMPARE_OPTIONS --app=$APP >> $LOG_FILE
-$SCRIPT_PATH/compiler_metrics.sh --stats-prefix=yours --dartc=./out/Release_ia32/dartc $COMPARE_OPTIONS --app=$APP > $STAT1
-failTest $? "Error collecting statistics from working copy"
-
-# switch to tmp for remainder of building
-cd $TMP_DIR
-
-gclient config https://dart.googlecode.com/svn/branches/bleeding_edge/deps/compiler.deps >> $LOG_FILE 2>&1
-failTest $? "Error calling gclient config"
-
-GCLIENT_SYNC="-t "
-if [ "" != "$REV" ]; then
-  GCLIENT_SYNC+="--revision=$REV"
-fi
-
-echo "Checking out clean version of $REV; will take some time. Look at $LOG_FILE for progress"
-gclient sync $GCLIENT_SYNC  >> $LOG_FILE 2>&1
-failTest $? "Error calling gclient sync"
-
-echo "Compiler clean version; may take some time"
-cd compiler
-gclient runhooks >> $LOG_FILE 2>&1
-../tools/build.py --mode release >> $LOG_FILE 2>&1
-failTest $? "Error compiling comparison revision"
-
-# Do the second test
-echo "Running second test against clean copy"
-echo $SCRIPT_PATH/compiler_metrics.sh --stats-prefix=clean --dartc=./out/Release_ia32/dartc $COMPARE_OPTIONS --app=$APP >> $LOG_FILE
-$SCRIPT_PATH/compiler_metrics.sh --stats-prefix=clean --dartc=./out/Release_ia32/dartc $COMPARE_OPTIONS --app=$APP > $STAT2
-failTest $? "Error collecting statistics from clean copy"
-
-calcStats