X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib%2Fmdate-sh;h=4614441d55ef2acea59614fb3371e3779184ece3;hb=4de5cb063668bce6690d7ff1f0af6e46616836a5;hp=1146853bc7cecd0eae0c2a08864180b4bb3b9c1f;hpb=45626588163e8c9a442737d7c80375bc93f271ab;p=platform%2Fupstream%2Fautomake.git diff --git a/lib/mdate-sh b/lib/mdate-sh index 1146853..4614441 100755 --- a/lib/mdate-sh +++ b/lib/mdate-sh @@ -1,7 +1,10 @@ #!/bin/sh -# mdate-sh - get modification time of a file and pretty-print it -# Copyright (C) 1995, 1997 Free Software Foundation, Inc. -# Written by Ulrich Drepper , June 1995 +# Get modification time of a file or directory and pretty-print it. + +scriptversion=2010-08-21.06; # UTC + +# Copyright (C) 1995-2012 Free Software Foundation, Inc. +# written by Ulrich Drepper , 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 @@ -14,8 +17,54 @@ # 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# along with this program. If not, see . + +# 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 or send patches to +# . + +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +fi + +case $1 in + '') + echo "$0: No file. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: mdate-sh [--help] [--version] FILE + +Pretty-print the modification day of FILE, in the format: +1 January 1970 + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "mdate-sh $scriptversion" + exit $? + ;; +esac + +error () +{ + echo "$0: $1" >&2 + exit 1 +} + # Prevent date giving response in another language. LANG=C @@ -25,23 +74,51 @@ export LC_ALL LC_TIME=C export LC_TIME -# Get the extended ls output of the file or directory. +# GNU ls changes its time format in response to the TIME_STYLE +# variable. Since we cannot assume 'unset' works, revert this +# variable to its documented default. +if test "${TIME_STYLE+set}" = set; then + TIME_STYLE=posix-long-iso + export TIME_STYLE +fi + +save_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 - set - `ls -L -l -d $1` + ls_command='ls -L -l -d' else - set - `ls -l -d $1` + ls_command='ls -l -d' +fi +# Avoid user/group names that might have spaces, when possible. +if ls -n /dev/null 1>/dev/null 2>&1; then + ls_command="$ls_command -n" fi -# The month is at least the fourth argument. -# (3 shifts here, the next inside the loop) -shift -shift -shift -# Find the month. Next argument is day, followed by the year or time. +# 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_command /` + +# Find which argument is the month. month= +command= until test $month do + test $# -gt 0 || error "failed parsing '$ls_command /' output" shift + # Add another shift to the command. + command="$command shift;" case $1 in Jan) month=January; nummonth=1;; Feb) month=February; nummonth=2;; @@ -58,7 +135,53 @@ do esac done -day=$2 +test -n "$month" || error "failed parsing '$ls_command /' output" + +# Get the extended ls output of the file or directory. +set dummy x`eval "$ls_command \"\\\$save_arg1\""` + +# Remove all preceding arguments +eval $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;; +esac + +case $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. @@ -89,3 +212,13 @@ 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-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: