#!/bin/bash+
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#+
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# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.+
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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#+
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# This code is free software; you can redistribute it and/or modify it+
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# under the terms of the GNU General Public License version 2 only, as+
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# published by the Free Software Foundation.+
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#+
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# This code is distributed in the hope that it will be useful, but WITHOUT+
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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# version 2 for more details (a copy is included in the LICENSE file that+
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# accompanied this code).+
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#+
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# You should have received a copy of the GNU General Public License version+
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# 2 along with this work; if not, write to the Free Software Foundation,+
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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#+
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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# or visit www.oracle.com if you need additional information or have any+
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# questions.+
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#+
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+
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# Usage: sh shell-tracer.sh <TIME_CMD_TYPE> <TIME_CMD> <OUTPUT_FILE> <shell command line>+
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#+
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# This shell script is supposed to be set as a replacement for SHELL in make,+
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# causing it to be called whenever make wants to execute shell commands.+
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# The <shell command line> is suitable for passing on to the old shell,+
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# typically beginning with -c.+
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#+
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# This script will run the shell command line and it will also store a simple+
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# log of the the time it takes to execute the command in the OUTPUT_FILE, using+
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# utility for time measure specified with TIME_CMD option.+
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#+
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# Type of time measure utility is specified with TIME_CMD_TYPE option.+
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# Recognized options values of TIME_CMD_TYPE option: "gnutime", "flock".+
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+
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TIME_CMD_TYPE="$1"+
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TIME_CMD="$2"+
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OUTPUT_FILE="$3"+
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shift+
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shift+
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shift+
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if [ "$TIME_CMD_TYPE" = "gnutime" ]; then+
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  # Escape backslashes (\) and percent chars (%). See man for GNU 'time'.+
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  msg=${@//\\/\\\\}+
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  msg=${msg//%/%%}+
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  "$TIME_CMD" -f "[TIME:%E] $msg" -a -o "$OUTPUT_FILE" "$@"+
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elif [ "$TIME_CMD_TYPE" = "flock" ]; then+
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  # Emulated GNU 'time' with 'flock' and 'date'.+
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  ts=`date +%s%3N`+
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  "$@"+
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  status=$?+
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  ts2=`date +%s%3N`+
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  millis=$((ts2 - ts))+
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  ms=$(($millis % 1000))+
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  seconds=$((millis / 1000))+
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  ss=$(($seconds % 60))+
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  minutes=$(($seconds / 60))+
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  mm=$(($minutes % 60))+
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  hh=$(($minutes / 60)):+
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  [ $hh != "0:" ] || hh=+
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  # Synchronize on this script.+
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  flock -w 10 "$0" printf "[TIME:${hh}${mm}:${ss}.%.2s] %s\n" $ms "$*" >> "$OUTPUT_FILE" || true+
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  exit $status+
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else+
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  "$@"+
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fi+
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