#!/bin/sh# Get modification time of a file or directory and pretty-print it.scriptversion=2005-06-29.22# Copyright (C) 1995, 1996, 1997, 2003, 2004, 2005 Free Software# Foundation, Inc.# written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995## This program is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License as published by# the Free Software Foundation; either version 2, or (at your option)# any later version.## This program is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the# GNU General Public License for more details.## You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software Foundation,# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.# As a special exception to the GNU General Public License, if you# distribute this file as part of a program that contains a# configuration script generated by Autoconf, you may include it under# the same distribution terms that you use for the rest of that program.# This file is maintained in Automake, please report# bugs to <bug-automake@gnu.org> or send patches to# <automake-patches@gnu.org>.case $1 in  '')     echo "$0: No file.  Try \`$0 --help' for more information." 1>&2     exit 1;     ;;  -h | --h*)    cat <<\EOFUsage: mdate-sh [--help] [--version] FILEPretty-print the modification time of FILE.Report bugs to <bug-automake@gnu.org>.EOF    exit $?    ;;  -v | --v*)    echo "mdate-sh $scriptversion"    exit $?    ;;esac# Prevent date giving response in another language.LANG=Cexport LANGLC_ALL=Cexport LC_ALLLC_TIME=Cexport LC_TIME# GNU ls changes its time format in response to the TIME_STYLE# variable.  Since we cannot assume `unset' works, revert this# variable to its documented default.if test "${TIME_STYLE+set}" = set; then  TIME_STYLE=posix-long-iso  export TIME_STYLEfisave_arg1=$1# Find out how to get the extended ls output of a file or directory.if ls -L /dev/null 1>/dev/null 2>&1; then  ls_command='ls -L -l -d'else  ls_command='ls -l -d'fi# A `ls -l' line looks as follows on OS/2.#  drwxrwx---        0 Aug 11  2001 foo# This differs from Unix, which adds ownership information.#  drwxrwx---   2 root  root      4096 Aug 11  2001 foo## To find the date, we split the line on spaces and iterate on words# until we find a month.  This cannot work with files whose owner is a# user named `Jan', or `Feb', etc.  However, it's unlikely that `/'# will be owned by a user whose name is a month.  So we first look at# the extended ls output of the root directory to decide how many# words should be skipped to get the date.# On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.set x`ls -l -d /`# Find which argument is the month.month=command=until test $monthdo  shift  # Add another shift to the command.  command="$command shift;"  case $1 in    Jan) month=January; nummonth=1;;    Feb) month=February; nummonth=2;;    Mar) month=March; nummonth=3;;    Apr) month=April; nummonth=4;;    May) month=May; nummonth=5;;    Jun) month=June; nummonth=6;;    Jul) month=July; nummonth=7;;    Aug) month=August; nummonth=8;;    Sep) month=September; nummonth=9;;    Oct) month=October; nummonth=10;;    Nov) month=November; nummonth=11;;    Dec) month=December; nummonth=12;;  esacdone# Get the extended ls output of the file or directory.set dummy x`eval "$ls_command \"\$save_arg1\""`# Remove all preceding argumentseval $command# Because of the dummy argument above, month is in $2.## On a POSIX system, we should have## $# = 5# $1 = file size# $2 = month# $3 = day# $4 = year or time# $5 = filename## On Darwin 7.7.0 and 7.6.0, we have## $# = 4# $1 = day# $2 = month# $3 = year or time# $4 = filename# Get the month.case $2 in  Jan) month=January; nummonth=1;;  Feb) month=February; nummonth=2;;  Mar) month=March; nummonth=3;;  Apr) month=April; nummonth=4;;  May) month=May; nummonth=5;;  Jun) month=June; nummonth=6;;  Jul) month=July; nummonth=7;;  Aug) month=August; nummonth=8;;  Sep) month=September; nummonth=9;;  Oct) month=October; nummonth=10;;  Nov) month=November; nummonth=11;;  Dec) month=December; nummonth=12;;esaccase $3 in  ???*) day=$1;;  *) day=$3; shift;;esac# Here we have to deal with the problem that the ls output gives either# the time of day or the year.case $3 in  *:*) set `date`; eval year=\$$#       case $2 in	 Jan) nummonthtod=1;;	 Feb) nummonthtod=2;;	 Mar) nummonthtod=3;;	 Apr) nummonthtod=4;;	 May) nummonthtod=5;;	 Jun) nummonthtod=6;;	 Jul) nummonthtod=7;;	 Aug) nummonthtod=8;;	 Sep) nummonthtod=9;;	 Oct) nummonthtod=10;;	 Nov) nummonthtod=11;;	 Dec) nummonthtod=12;;       esac       # For the first six month of the year the time notation can also       # be used for files modified in the last year.       if (expr $nummonth \> $nummonthtod) > /dev/null;       then	 year=`expr $year - 1`       fi;;  *) year=$3;;esac# The result.echo $day $month $year# Local Variables:# mode: shell-script# sh-indentation: 2# eval: (add-hook 'write-file-hooks 'time-stamp)# time-stamp-start: "scriptversion="# time-stamp-format: "%:y-%02m-%02d.%02H"# time-stamp-end: "$"# End: