logger.sh revision 1624:4a82073cc315 
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: ./logger.sh theloggfile acommand arg1 arg2
26#
27# Execute acommand with args, in such a way that
28# both stdout and stderr from acommand are appended to
29# theloggfile.
30#
31# Preserve stdout and stderr, so that the stdout
32# from logger.sh is the same from acommand and equally
33# for stderr.
34#
35# Propagate the result code from acommand so that
36# ./logger.sh exits with the same result code.
37
38# Create a temporary directory to store the result code from
39# the wrapped command.
40RCDIR=`mktemp -dt jdk-build-logger.tmp.XXXXXX` || exit $?
41trap "rm -rf \"$RCDIR\"" EXIT
42LOGFILE=$1
43shift
44
45# We need to handle command likes like "VAR1=val1 /usr/bin/cmd VAR2=val2".
46# Do this by shifting away prepended variable assignments, and export them
47# instead.
48is_prefix=true
49for opt; do
50  if [[ "$is_prefix" = true && "$opt" =~ ^.*=.*$ ]]; then
51    export $opt
52    shift
53  else
54    is_prefix=false
55  fi
56done
57
58(exec 3>&1 ; ("$@" 2>&1 1>&3; echo $? > "$RCDIR/rc") | tee -a $LOGFILE 1>&2 ; exec 3>&-) | tee -a $LOGFILE
59exit `cat "$RCDIR/rc"`
60