* man/roff.man, doc/groff.texinfo: Improve history of roff, based on
[s-roff.git] / install-sh
blobfd2e75a02aeaafbd0537c669844c4f69d0364363
1 #!/bin/sh
2 # install - install a program, script, or datafile
4 scriptversion=2006-01-12.21
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. It can only install one file at a time, a restriction
43 # shared with many OS's install programs.
45 # set DOITPROG to echo to test this script
47 # Don't use :- since 4.3BSD and earlier shells don't like it.
48 doit="${DOITPROG-}"
50 # put in absolute paths if you don't have them in your path; or use env. vars.
52 mvprog="${MVPROG-mv}"
53 cpprog="${CPPROG-cp}"
54 chmodprog="${CHMODPROG-chmod}"
55 chownprog="${CHOWNPROG-chown}"
56 chgrpprog="${CHGRPPROG-chgrp}"
57 stripprog="${STRIPPROG-strip}"
58 rmprog="${RMPROG-rm}"
59 mkdirprog="${MKDIRPROG-mkdir}"
61 posix_glob=
62 posix_mkdir=
64 # Symbolic mode for testing mkdir with directories.
65 # It is the same as 755, but also tests that "u+" works.
66 test_mode=u=rwx,g=rx,o=rx,u+wx
68 # Desired mode of installed file.
69 mode=0755
71 # Desired mode of newly created intermediate directories.
72 # It is empty if not known yet.
73 intermediate_mode=
75 chmodcmd=$chmodprog
76 chowncmd=
77 chgrpcmd=
78 stripcmd=
79 rmcmd="$rmprog -f"
80 mvcmd="$mvprog"
81 src=
82 dst=
83 dir_arg=
84 dstarg=
85 no_target_directory=
87 usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
88 or: $0 [OPTION]... SRCFILES... DIRECTORY
89 or: $0 [OPTION]... -t DIRECTORY SRCFILES...
90 or: $0 [OPTION]... -d DIRECTORIES...
92 In the 1st form, copy SRCFILE to DSTFILE.
93 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
94 In the 4th, create DIRECTORIES.
96 Options:
97 -c (ignored)
98 -d create directories instead of installing files.
99 -g GROUP $chgrpprog installed files to GROUP.
100 -m MODE $chmodprog installed files to MODE.
101 -o USER $chownprog installed files to USER.
102 -s $stripprog installed files.
103 -t DIRECTORY install into DIRECTORY.
104 -T report an error if DSTFILE is a directory.
105 --help display this help and exit.
106 --version display version info and exit.
108 Environment variables override the default commands:
109 CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
112 while test -n "$1"; do
113 case $1 in
114 -c) shift
115 continue;;
117 -d) dir_arg=true
118 shift
119 continue;;
121 -g) chgrpcmd="$chgrpprog $2"
122 shift
123 shift
124 continue;;
126 --help) echo "$usage"; exit $?;;
128 -m) mode=$2
129 shift
130 shift
131 continue;;
133 -o) chowncmd="$chownprog $2"
134 shift
135 shift
136 continue;;
138 -s) stripcmd=$stripprog
139 shift
140 continue;;
142 -t) dstarg=$2
143 shift
144 shift
145 continue;;
147 -T) no_target_directory=true
148 shift
149 continue;;
151 --version) echo "$0 $scriptversion"; exit $?;;
153 *) # When -d is used, all remaining arguments are directories to create.
154 # When -t is used, the destination is already specified.
155 test -n "$dir_arg$dstarg" && break
156 # Otherwise, the last argument is the destination. Remove it from $@.
157 for arg
159 if test -n "$dstarg"; then
160 # $@ is not empty: it contains at least $arg.
161 set fnord "$@" "$dstarg"
162 shift # fnord
164 shift # arg
165 dstarg=$arg
166 done
167 break;;
168 esac
169 done
171 if test -z "$1"; then
172 if test -z "$dir_arg"; then
173 echo "$0: no input file specified." >&2
174 exit 1
176 # It's OK to call `install-sh -d' without argument.
177 # This can happen when creating conditional directories.
178 exit 0
181 test -n "$dir_arg" || trap '(exit $?); exit' 1 2 13 15
183 for src
185 # Protect names starting with `-'.
186 case $src in
187 -*) src=./$src ;;
188 esac
190 if test -n "$dir_arg"; then
191 dst=$src
192 dstdir=$dst
193 test -d "$dstdir"
194 dstdir_status=$?
195 else
197 # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
198 # might cause directories to be created, which would be especially bad
199 # if $src (and thus $dsttmp) contains '*'.
200 if test ! -f "$src" && test ! -d "$src"; then
201 echo "$0: $src does not exist." >&2
202 exit 1
205 if test -z "$dstarg"; then
206 echo "$0: no destination specified." >&2
207 exit 1
210 dst=$dstarg
211 # Protect names starting with `-'.
212 case $dst in
213 -*) dst=./$dst ;;
214 esac
216 # If destination is a directory, append the input filename; won't work
217 # if double slashes aren't ignored.
218 if test -d "$dst"; then
219 if test -n "$no_target_directory"; then
220 echo "$0: $dstarg: Is a directory" >&2
221 exit 1
223 dstdir=$dst
224 dst=$dstdir/`basename "$src"`
225 dstdir_status=0
226 else
227 # Prefer dirname, but fall back on a substitute if dirname fails.
228 dstdir=`
229 (dirname "$dst") 2>/dev/null ||
230 expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
231 X"$dst" : 'X\(//\)[^/]' \| \
232 X"$dst" : 'X\(//\)$' \| \
233 X"$dst" : 'X\(/\)' \| \
234 . : '\(.\)' 2>/dev/null ||
235 echo X"$dst" |
236 sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
237 s//\1/
240 /^X\(\/\/\)[^/].*/{
241 s//\1/
244 /^X\(\/\/\)$/{
245 s//\1/
248 /^X\(\/\).*/{
249 s//\1/
252 s/.*/./; q'
255 test -d "$dstdir"
256 dstdir_status=$?
260 obsolete_mkdir_used=false
262 if test $dstdir_status != 0; then
263 case $posix_mkdir in
265 posix_mkdir=false
266 if $mkdirprog -m $test_mode -p -- / >/dev/null 2>&1; then
267 posix_mkdir=true
268 else
269 # Remove any dirs left behind by ancient mkdir implementations.
270 rmdir ./-m "$test_mode" ./-p ./-- 2>/dev/null
271 fi ;;
272 esac
275 $posix_mkdir && {
277 # With -d, create the new directory with the user-specified mode.
278 # Otherwise, create it using the same intermediate mode that
279 # mkdir -p would use when creating intermediate directories.
280 # POSIX says that this mode is "$(umask -S),u+wx", so use that
281 # if umask -S works.
283 if test -n "$dir_arg"; then
284 mkdir_mode=$mode
285 else
286 case $intermediate_mode in
288 if umask_S=`(umask -S) 2>/dev/null`; then
289 intermediate_mode=$umask_S,u+wx
290 else
291 intermediate_mode=$test_mode
292 fi ;;
293 esac
294 mkdir_mode=$intermediate_mode
297 $mkdirprog -m "$mkdir_mode" -p -- "$dstdir"
299 then :
300 else
302 # mkdir does not conform to POSIX, or it failed possibly due to
303 # a race condition. Create the directory the slow way, step by
304 # step, checking for races as we go.
306 case $dstdir in
307 /*) pathcomp=/ ;;
308 -*) pathcomp=./ ;;
309 *) pathcomp= ;;
310 esac
312 case $posix_glob in
314 if (set -f) 2>/dev/null; then
315 posix_glob=true
316 else
317 posix_glob=false
318 fi ;;
319 esac
321 oIFS=$IFS
322 IFS=/
323 $posix_glob && set -f
324 set fnord $dstdir
325 shift
326 $posix_glob && set +f
327 IFS=$oIFS
329 for d
331 test "x$d" = x && continue
333 pathcomp=$pathcomp$d
334 if test ! -d "$pathcomp"; then
335 $mkdirprog "$pathcomp"
336 # Don't fail if two instances are running concurrently.
337 test -d "$pathcomp" || exit 1
339 pathcomp=$pathcomp/
340 done
341 obsolete_mkdir_used=true
345 if test -n "$dir_arg"; then
346 { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
347 { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
348 { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
349 test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dst"; } || exit 1
350 else
352 # Make a couple of temp file names in the proper directory.
353 dsttmp=$dstdir/_inst.$$_
354 rmtmp=$dstdir/_rm.$$_
356 # Trap to clean up those temp files at exit.
357 trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
359 # Copy the file name to the temp name.
360 $doit $cpprog "$src" "$dsttmp" &&
362 # and set any options; do chmod last to preserve setuid bits.
364 # If any of these fail, we abort the whole thing. If we want to
365 # ignore errors from any of these, just make sure not to ignore
366 # errors from the above "$doit $cpprog $src $dsttmp" command.
368 { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
369 && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
370 && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
371 && { test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dsttmp"; } &&
373 # Now rename the file to the real destination.
374 { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
375 || {
376 # The rename failed, perhaps because mv can't rename something else
377 # to itself, or perhaps because mv is so ancient that it does not
378 # support -f.
380 # Now remove or move aside any old file at destination location.
381 # We try this two ways since rm can't unlink itself on some
382 # systems and the destination file might be busy for other
383 # reasons. In this case, the final cleanup might fail but the new
384 # file should still install successfully.
386 if test -f "$dst"; then
387 $doit $rmcmd -f "$dst" 2>/dev/null \
388 || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
389 && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
390 || {
391 echo "$0: cannot unlink or rename $dst" >&2
392 (exit 1); exit 1
394 else
397 } &&
399 # Now rename the file to the real destination.
400 $doit $mvcmd "$dsttmp" "$dst"
402 } || exit 1
404 trap '' 0
406 done
408 # Local variables:
409 # eval: (add-hook 'write-file-hooks 'time-stamp)
410 # time-stamp-start: "scriptversion="
411 # time-stamp-format: "%:y-%02m-%02d.%02H"
412 # time-stamp-end: "$"
413 # End: