shell-tracer.sh revision 492:e64f2cb57d05 
1#!/bin/bash
2#
3# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
4# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5#
6# This code is free software; you can redistribute it and/or modify it
7# under the terms of the GNU General Public License version 2 only, as
8# published by the Free Software Foundation.
9#
10# This code is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13# version 2 for more details (a copy is included in the LICENSE file that
14# accompanied this code).
15#
16# You should have received a copy of the GNU General Public License version
17# 2 along with this work; if not, write to the Free Software Foundation,
18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19#
20# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21# or visit www.oracle.com if you need additional information or have any
22# questions.
23#
24
25# Usage: sh shell-tracer.sh <TIME_CMD> <OUTPUT_FILE> <OLD_SHELL> <shell command line>
26#
27# This shell script is supposed to be set as a replacement for SHELL in make,
28# causing it to be called whenever make wants to execute shell commands.
29# The <shell command line> is suitable for passing on to the old shell, 
30# typically beginning with -c.
31#
32# This script will make sure the shell command line is executed with 
33# OLD_SHELL -x, and it will also store a simple log of the the time it takes to
34# execute the command in the OUTPUT_FILE, using the "time" utility as pointed 
35# to by TIME_CMD. If TIME_CMD is "-", no timestamp will be stored.
36
37TIME_CMD="$1"
38OUTPUT_FILE="$2"
39OLD_SHELL="$3"
40shift
41shift
42shift
43if [ "$TIME_CMD" != "-" ]; then
44"$TIME_CMD" -f "[TIME:%E] $*" -a -o "$OUTPUT_FILE" "$OLD_SHELL" -x "$@"
45else
46"$OLD_SHELL" -x "$@"
47fi
48