| #!/bin/sh |
| # Like mv $1 $2, but if the files are the same, just delete $1. |
| # Status is zero if successful, nonzero otherwise. |
| |
| VERSION='2011-01-28 20:09'; # UTC |
| # The definition above must lie within the first 8 lines in order |
| # for the Emacs time-stamp write hook (at end) to update it. |
| # If you change this file with Emacs, please let the write hook |
| # do its job. Otherwise, update this string manually. |
| |
| # Copyright (C) 2002-2007, 2009-2011 Free Software Foundation, Inc. |
| |
| # 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. |
| |
| usage="usage: $0 SOURCE DEST" |
| |
| help="$usage |
| or: $0 OPTION |
| If SOURCE is different than DEST, then move it to DEST; else remove SOURCE. |
| |
| --help display this help and exit |
| --version output version information and exit |
| |
| The variable CMPPROG can be used to specify an alternative to \`cmp'. |
| |
| Report bugs to <bug-gnulib@gnu.org>." |
| |
| version=`expr "$VERSION" : '\([^ ]*\)'` |
| version="move-if-change (gnulib) $version |
| Copyright (C) 2011 Free Software Foundation, Inc. |
| License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> |
| This is free software: you are free to change and redistribute it. |
| There is NO WARRANTY, to the extent permitted by law." |
| |
| cmpprog=${CMPPROG-cmp} |
| |
| for arg |
| do |
| case $arg in |
| --help | --hel | --he | --h) |
| exec echo "$help" ;; |
| --version | --versio | --versi | --vers | --ver | --ve | --v) |
| exec echo "$version" ;; |
| --) |
| shift |
| break ;; |
| -*) |
| echo "$0: invalid option: $arg" >&2 |
| exit 1 ;; |
| *) |
| break ;; |
| esac |
| done |
| |
| test $# -eq 2 || { echo "$0: $usage" >&2; exit 1; } |
| |
| if test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null; then |
| rm -f -- "$1" |
| else |
| if mv -f -- "$1" "$2"; then :; else |
| # Ignore failure due to a concurrent move-if-change. |
| test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null && rm -f -- "$1" |
| fi |
| fi |
| |
| ## Local Variables: |
| ## eval: (add-hook 'write-file-hooks 'time-stamp) |
| ## time-stamp-start: "VERSION='" |
| ## time-stamp-format: "%:y-%02m-%02d %02H:%02M" |
| ## time-stamp-time-zone: "UTC" |
| ## time-stamp-end: "'; # UTC" |
| ## End: |