Merge from mainline.
[emacs.git] / install-sh
blob3f83ce9b555a535ca90c450882953554c7e4ded5
1 #!/bin/sh
2 # install - install a program, script, or datafile
4 scriptversion=2010-02-06.18; # UTC
6 # This originates from X11R5 (mit/util/scripts/install.sh), which was
7 # later released in X11R6 (xc/config/util/install.sh) with the
8 # following copyright and license.
10 # Copyright (C) 1994 X Consortium
12 # Permission is hereby granted, free of charge, to any person obtaining a copy
13 # of this software and associated documentation files (the "Software"), to
14 # deal in the Software without restriction, including without limitation the
15 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
16 # sell copies of the Software, and to permit persons to whom the Software is
17 # furnished to do so, subject to the following conditions:
19 # The above copyright notice and this permission notice shall be included in
20 # all copies or substantial portions of the Software.
22 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25 # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
26 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
27 # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 # Except as contained in this notice, the name of the X Consortium shall not
30 # be used in advertising or otherwise to promote the sale, use or other deal-
31 # ings in this Software without prior written authorization from the X Consor-
32 # tium.
35 # FSF changes to this file are in the public domain.
37 # Calling this script install-sh is preferred over install.sh, to prevent
38 # `make' implicit rules from creating a file called install from it
39 # when there is no Makefile.
41 # This script is compatible with the BSD install script, but was written
42 # from scratch.
44 nl='
46 IFS=" "" $nl"
48 # set DOITPROG to echo to test this script
50 # Don't use :- since 4.3BSD and earlier shells don't like it.
51 doit=${DOITPROG-}
52 if test -z "$doit"; then
53 doit_exec=exec
54 else
55 doit_exec=$doit
58 # Put in absolute file names if you don't have them in your path;
59 # or use environment vars.
61 chgrpprog=${CHGRPPROG-chgrp}
62 chmodprog=${CHMODPROG-chmod}
63 chownprog=${CHOWNPROG-chown}
64 cmpprog=${CMPPROG-cmp}
65 cpprog=${CPPROG-cp}
66 mkdirprog=${MKDIRPROG-mkdir}
67 mvprog=${MVPROG-mv}
68 rmprog=${RMPROG-rm}
69 stripprog=${STRIPPROG-strip}
71 posix_glob='?'
72 initialize_posix_glob='
73 test "$posix_glob" != "?" || {
74 if (set -f) 2>/dev/null; then
75 posix_glob=
76 else
77 posix_glob=:
82 posix_mkdir=
84 # Desired mode of installed file.
85 mode=0755
87 chgrpcmd=
88 chmodcmd=$chmodprog
89 chowncmd=
90 mvcmd=$mvprog
91 rmcmd="$rmprog -f"
92 stripcmd=
94 src=
95 dst=
96 dir_arg=
97 dst_arg=
99 copy_on_change=false
100 no_target_directory=
102 usage="\
103 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
104 or: $0 [OPTION]... SRCFILES... DIRECTORY
105 or: $0 [OPTION]... -t DIRECTORY SRCFILES...
106 or: $0 [OPTION]... -d DIRECTORIES...
108 In the 1st form, copy SRCFILE to DSTFILE.
109 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
110 In the 4th, create DIRECTORIES.
112 Options:
113 --help display this help and exit.
114 --version display version info and exit.
116 -c (ignored)
117 -C install only if different (preserve the last data modification time)
118 -d create directories instead of installing files.
119 -g GROUP $chgrpprog installed files to GROUP.
120 -m MODE $chmodprog installed files to MODE.
121 -o USER $chownprog installed files to USER.
122 -s $stripprog installed files.
123 -t DIRECTORY install into DIRECTORY.
124 -T report an error if DSTFILE is a directory.
126 Environment variables override the default commands:
127 CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
128 RMPROG STRIPPROG
131 while test $# -ne 0; do
132 case $1 in
133 -c) ;;
135 -C) copy_on_change=true;;
137 -d) dir_arg=true;;
139 -g) chgrpcmd="$chgrpprog $2"
140 shift;;
142 --help) echo "$usage"; exit $?;;
144 -m) mode=$2
145 case $mode in
146 *' '* | *' '* | *'
147 '* | *'*'* | *'?'* | *'['*)
148 echo "$0: invalid mode: $mode" >&2
149 exit 1;;
150 esac
151 shift;;
153 -o) chowncmd="$chownprog $2"
154 shift;;
156 -s) stripcmd=$stripprog;;
158 -t) dst_arg=$2
159 shift;;
161 -T) no_target_directory=true;;
163 --version) echo "$0 $scriptversion"; exit $?;;
165 --) shift
166 break;;
168 -*) echo "$0: invalid option: $1" >&2
169 exit 1;;
171 *) break;;
172 esac
173 shift
174 done
176 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
177 # When -d is used, all remaining arguments are directories to create.
178 # When -t is used, the destination is already specified.
179 # Otherwise, the last argument is the destination. Remove it from $@.
180 for arg
182 if test -n "$dst_arg"; then
183 # $@ is not empty: it contains at least $arg.
184 set fnord "$@" "$dst_arg"
185 shift # fnord
187 shift # arg
188 dst_arg=$arg
189 done
192 if test $# -eq 0; then
193 if test -z "$dir_arg"; then
194 echo "$0: no input file specified." >&2
195 exit 1
197 # It's OK to call `install-sh -d' without argument.
198 # This can happen when creating conditional directories.
199 exit 0
202 if test -z "$dir_arg"; then
203 do_exit='(exit $ret); exit $ret'
204 trap "ret=129; $do_exit" 1
205 trap "ret=130; $do_exit" 2
206 trap "ret=141; $do_exit" 13
207 trap "ret=143; $do_exit" 15
209 # Set umask so as not to create temps with too-generous modes.
210 # However, 'strip' requires both read and write access to temps.
211 case $mode in
212 # Optimize common cases.
213 *644) cp_umask=133;;
214 *755) cp_umask=22;;
216 *[0-7])
217 if test -z "$stripcmd"; then
218 u_plus_rw=
219 else
220 u_plus_rw='% 200'
222 cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
224 if test -z "$stripcmd"; then
225 u_plus_rw=
226 else
227 u_plus_rw=,u+rw
229 cp_umask=$mode$u_plus_rw;;
230 esac
233 for src
235 # Protect names starting with `-'.
236 case $src in
237 -*) src=./$src;;
238 esac
240 if test -n "$dir_arg"; then
241 dst=$src
242 dstdir=$dst
243 test -d "$dstdir"
244 dstdir_status=$?
245 else
247 # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
248 # might cause directories to be created, which would be especially bad
249 # if $src (and thus $dsttmp) contains '*'.
250 if test ! -f "$src" && test ! -d "$src"; then
251 echo "$0: $src does not exist." >&2
252 exit 1
255 if test -z "$dst_arg"; then
256 echo "$0: no destination specified." >&2
257 exit 1
260 dst=$dst_arg
261 # Protect names starting with `-'.
262 case $dst in
263 -*) dst=./$dst;;
264 esac
266 # If destination is a directory, append the input filename; won't work
267 # if double slashes aren't ignored.
268 if test -d "$dst"; then
269 if test -n "$no_target_directory"; then
270 echo "$0: $dst_arg: Is a directory" >&2
271 exit 1
273 dstdir=$dst
274 dst=$dstdir/`basename "$src"`
275 dstdir_status=0
276 else
277 # Prefer dirname, but fall back on a substitute if dirname fails.
278 dstdir=`
279 (dirname "$dst") 2>/dev/null ||
280 expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
281 X"$dst" : 'X\(//\)[^/]' \| \
282 X"$dst" : 'X\(//\)$' \| \
283 X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
284 echo X"$dst" |
285 sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
286 s//\1/
289 /^X\(\/\/\)[^/].*/{
290 s//\1/
293 /^X\(\/\/\)$/{
294 s//\1/
297 /^X\(\/\).*/{
298 s//\1/
301 s/.*/./; q'
304 test -d "$dstdir"
305 dstdir_status=$?
309 obsolete_mkdir_used=false
311 if test $dstdir_status != 0; then
312 case $posix_mkdir in
314 # Create intermediate dirs using mode 755 as modified by the umask.
315 # This is like FreeBSD 'install' as of 1997-10-28.
316 umask=`umask`
317 case $stripcmd.$umask in
318 # Optimize common cases.
319 *[2367][2367]) mkdir_umask=$umask;;
320 .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
322 *[0-7])
323 mkdir_umask=`expr $umask + 22 \
324 - $umask % 100 % 40 + $umask % 20 \
325 - $umask % 10 % 4 + $umask % 2
327 *) mkdir_umask=$umask,go-w;;
328 esac
330 # With -d, create the new directory with the user-specified mode.
331 # Otherwise, rely on $mkdir_umask.
332 if test -n "$dir_arg"; then
333 mkdir_mode=-m$mode
334 else
335 mkdir_mode=
338 posix_mkdir=false
339 case $umask in
340 *[123567][0-7][0-7])
341 # POSIX mkdir -p sets u+wx bits regardless of umask, which
342 # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
345 tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
346 trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
348 if (umask $mkdir_umask &&
349 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
350 then
351 if test -z "$dir_arg" || {
352 # Check for POSIX incompatibilities with -m.
353 # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
354 # other-writeable bit of parent directory when it shouldn't.
355 # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
356 ls_ld_tmpdir=`ls -ld "$tmpdir"`
357 case $ls_ld_tmpdir in
358 d????-?r-*) different_mode=700;;
359 d????-?--*) different_mode=755;;
360 *) false;;
361 esac &&
362 $mkdirprog -m$different_mode -p -- "$tmpdir" && {
363 ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
364 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
367 then posix_mkdir=:
369 rmdir "$tmpdir/d" "$tmpdir"
370 else
371 # Remove any dirs left behind by ancient mkdir implementations.
372 rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
374 trap '' 0;;
375 esac;;
376 esac
379 $posix_mkdir && (
380 umask $mkdir_umask &&
381 $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
383 then :
384 else
386 # The umask is ridiculous, or mkdir does not conform to POSIX,
387 # or it failed possibly due to a race condition. Create the
388 # directory the slow way, step by step, checking for races as we go.
390 case $dstdir in
391 /*) prefix='/';;
392 -*) prefix='./';;
393 *) prefix='';;
394 esac
396 eval "$initialize_posix_glob"
398 oIFS=$IFS
399 IFS=/
400 $posix_glob set -f
401 set fnord $dstdir
402 shift
403 $posix_glob set +f
404 IFS=$oIFS
406 prefixes=
408 for d
410 test -z "$d" && continue
412 prefix=$prefix$d
413 if test -d "$prefix"; then
414 prefixes=
415 else
416 if $posix_mkdir; then
417 (umask=$mkdir_umask &&
418 $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
419 # Don't fail if two instances are running concurrently.
420 test -d "$prefix" || exit 1
421 else
422 case $prefix in
423 *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
424 *) qprefix=$prefix;;
425 esac
426 prefixes="$prefixes '$qprefix'"
429 prefix=$prefix/
430 done
432 if test -n "$prefixes"; then
433 # Don't fail if two instances are running concurrently.
434 (umask $mkdir_umask &&
435 eval "\$doit_exec \$mkdirprog $prefixes") ||
436 test -d "$dstdir" || exit 1
437 obsolete_mkdir_used=true
442 if test -n "$dir_arg"; then
443 { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
444 { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
445 { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
446 test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
447 else
449 # Make a couple of temp file names in the proper directory.
450 dsttmp=$dstdir/_inst.$$_
451 rmtmp=$dstdir/_rm.$$_
453 # Trap to clean up those temp files at exit.
454 trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
456 # Copy the file name to the temp name.
457 (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
459 # and set any options; do chmod last to preserve setuid bits.
461 # If any of these fail, we abort the whole thing. If we want to
462 # ignore errors from any of these, just make sure not to ignore
463 # errors from the above "$doit $cpprog $src $dsttmp" command.
465 { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
466 { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
467 { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
468 { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
470 # If -C, don't bother to copy if it wouldn't change the file.
471 if $copy_on_change &&
472 old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
473 new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
475 eval "$initialize_posix_glob" &&
476 $posix_glob set -f &&
477 set X $old && old=:$2:$4:$5:$6 &&
478 set X $new && new=:$2:$4:$5:$6 &&
479 $posix_glob set +f &&
481 test "$old" = "$new" &&
482 $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
483 then
484 rm -f "$dsttmp"
485 else
486 # Rename the file to the real destination.
487 $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
489 # The rename failed, perhaps because mv can't rename something else
490 # to itself, or perhaps because mv is so ancient that it does not
491 # support -f.
493 # Now remove or move aside any old file at destination location.
494 # We try this two ways since rm can't unlink itself on some
495 # systems and the destination file might be busy for other
496 # reasons. In this case, the final cleanup might fail but the new
497 # file should still install successfully.
499 test ! -f "$dst" ||
500 $doit $rmcmd -f "$dst" 2>/dev/null ||
501 { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
502 { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
503 } ||
504 { echo "$0: cannot unlink or rename $dst" >&2
505 (exit 1); exit 1
507 } &&
509 # Now rename the file to the real destination.
510 $doit $mvcmd "$dsttmp" "$dst"
512 fi || exit 1
514 trap '' 0
516 done
518 # Local variables:
519 # eval: (add-hook 'write-file-hooks 'time-stamp)
520 # time-stamp-start: "scriptversion="
521 # time-stamp-format: "%:y-%02m-%02d.%02H"
522 # time-stamp-time-zone: "UTC"
523 # time-stamp-end: "; # UTC"
524 # End: