+2006-12-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * lib/install-sh (initialize_posix_glob): New var.
+ Use it instead of setting posix_glob inline.
+ (posix_glob): Use '?'/''/: instead of ''/yes/no, for convenience.
+ (cmpprog, CMPPROG): New vars, since we use cmp rather than the diff
+ of Akim's patch.
+ Use LC_ALL before invoking 'ls' when we depend on its output format.
+ Don't use awk; just use the shell's builtin features.
+ Clean up $dsttmp -C detects no installation is needed.
+ * tests/defs.in (is_newest): Renamed from is_younger; the new
+ name is more accurate. All uses changed.
+ (old_timestamp): New var.
+ * tests/instsh2.test: Rewrite to avoid the need for sleeping.
+
+2006-12-25 Akim Demaille <akim@epita.fr>
+
+ * lib/install-sh: Implement install-sh -C.
+ (This patch is the remaining part of the patch proposed in
+ <http://lists.gnu.org/archive/html/automake-patches/2006-10/msg00077.html>.)
+ (usage): Document it.
+ (copy_on_change): New var.
+ * tests/defs.in (is_younger): New function.
+ * tests/instsh2.test: Check install-sh -C.
+
2006-12-24 Paul Eggert <eggert@cs.ucla.edu>
* lib/install-sh: Fix typo in previous patch for handling --.
#!/bin/sh
# install - install a program, script, or datafile
-scriptversion=2006-12-24.16
+scriptversion=2006-12-25.00
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
-posix_glob=
+posix_glob='?'
+initialize_posix_glob='
+ test "$posix_glob" != "?" || {
+ if (set -f) 2>/dev/null; then
+ posix_glob=
+ else
+ posix_glob=:
+ fi
+ }
+'
+
posix_mkdir=
# Desired mode of installed file.
dir_arg=
dst_arg=
+copy_on_change=false
no_target_directory=
usage="\
--version display version info and exit.
-c (ignored)
+ -C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
- CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
+ CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+ RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) ;;
+ -C) copy_on_change=true;;
+
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
*) prefix='';;
esac
- case $posix_glob in
- '')
- if (set -f) 2>/dev/null; then
- posix_glob=true
- else
- posix_glob=false
- fi;;
- esac
+ eval "$initialize_posix_glob"
oIFS=$IFS
IFS=/
- $posix_glob && set -f
+ $posix_glob set -f
set fnord $dstdir
shift
- $posix_glob && set +f
+ $posix_glob set +f
IFS=$oIFS
prefixes=
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
- # Now rename the file to the real destination.
- { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || {
- # The rename failed, perhaps because mv can't rename something else
- # to itself, or perhaps because mv is so ancient that it does not
- # support -f.
-
- # Now remove or move aside any old file at destination location.
- # We try this two ways since rm can't unlink itself on some
- # systems and the destination file might be busy for other
- # reasons. In this case, the final cleanup might fail but the new
- # file should still install successfully.
- {
- test ! -f "$dst" ||
- $doit $rmcmd -f "$dst" 2>/dev/null ||
- { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
- { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
- } ||
- { echo "$0: cannot unlink or rename $dst" >&2
- (exit 1); exit 1
- }
- } &&
-
- # Now rename the file to the real destination.
- $doit $mvcmd "$dsttmp" "$dst"
- }
- } || exit 1
+ # If -C, don't bother to copy if it wouldn't change the file.
+ if $copy_on_change &&
+ old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
+ new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
+
+ eval "$initialize_posix_glob" &&
+ $posix_glob set -f &&
+ set X $old && old=:$2:$4:$5:$6 &&
+ set X $new && new=:$2:$4:$5:$6 &&
+ $posix_glob set +f &&
+
+ test "$old" = "$new" &&
+ $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+ then
+ rm -f "$dsttmp"
+ else
+ # Rename the file to the real destination.
+ $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+ # The rename failed, perhaps because mv can't rename something else
+ # to itself, or perhaps because mv is so ancient that it does not
+ # support -f.
+ {
+ # Now remove or move aside any old file at destination location.
+ # We try this two ways since rm can't unlink itself on some
+ # systems and the destination file might be busy for other
+ # reasons. In this case, the final cleanup might fail but the new
+ # file should still install successfully.
+ {
+ test ! -f "$dst" ||
+ $doit $rmcmd -f "$dst" 2>/dev/null ||
+ { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+ { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+ } ||
+ { echo "$0: cannot unlink or rename $dst" >&2
+ (exit 1); exit 1
+ }
+ } &&
+
+ # Now rename the file to the real destination.
+ $doit $mvcmd "$dsttmp" "$dst"
+ }
+ fi || exit 1
trap '' 0
fi
projects / platform / upstream / automake.git / commitdiff