Import move-if-change script from gnulib.

/:
	PR binutils/12283
	* MAINTAINERS (mkinstalldirs): Comes from Automake.
	(move-if-change): Comes from gnulib.
	* move-if-change: Import version from gnulib.
This commit is contained in:
Ralf Wildenhues 2011-02-12 15:47:02 +00:00
parent a8ed311494
commit e7e950024c
3 changed files with 81 additions and 17 deletions

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@ -1,3 +1,10 @@
2011-02-12 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
PR binutils/12283
* MAINTAINERS (mkinstalldirs): Comes from Automake.
(move-if-change): Comes from gnulib.
* move-if-change: Import version from gnulib.
2011-02-12 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Sync from GCC:

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@ -38,7 +38,7 @@ config.guess; config.sub; readline/support/config.{sub,guess}
binutils@sourceware.org
gdb-patches@sourceware.org
depcomp
depcomp; mkinstalldirs
Send bug reports and patches to bug-automake@gnu.org.
gdb/; readline/; sim/; GDB's part of include/
@ -69,12 +69,8 @@ ltconfig; ltmain.sh; ltcf-*.sh
sources or submitted to the master file maintainer and brought
in via a merge.
mkinstalldirs; move-if-change
autoconf: http://gnu.org
Patches to autoconf-patches@gnu.org.
Changes need to be done in tandem with the official AUTOCONF
sources or submitted to the master file maintainer and brought
in via a merge.
move-if-change
Send bug reports and patches to bug-gnulib@gnu.org.
symlink-tree
gcc: http://gcc.gnu.org

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@ -2,21 +2,82 @@
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is zero if successful, nonzero otherwise.
usage="$0: usage: $0 SOURCE DEST"
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.
case $# in
2) ;;
*) echo "$usage" >&2; exit 1;;
esac
# Copyright (C) 2002-2007, 2009-2011 Free Software Foundation, Inc.
for arg in "$1" "$2"; do
# 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 $arg in
-*) echo "$usage" >&2; exit 1;;
--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
if test -r "$2" && cmp -s "$1" "$2"; then
rm -f "$1"
test $# -eq 2 || { echo "$0: $usage" >&2; exit 1; }
if test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null; then
rm -f -- "$1"
else
mv -f "$1" "$2"
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: