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1 #!/bin/sh
2 # install - install a program, script, or datafile
3
4 scriptversion=2020-11-14.01; # UTC
5
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.
9 #
10 # Copyright (C) 1994 X Consortium
11 #
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:
18 #
19 # The above copyright notice and this permission notice shall be included in
20 # all copies or substantial portions of the Software.
21 #
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.
28 #
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.
33 #
34 #
35 # FSF changes to this file are in the public domain.
36 #
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.
40 #
41 # This script is compatible with the BSD install script, but was written
42 # from scratch.
43
44 tab=' '
45 nl='
46 '
47 IFS=" $tab$nl"
48
49 # Set DOITPROG to "echo" to test this script.
50
51 doit=${DOITPROG-}
52 doit_exec=${doit:-exec}
53
54 # Put in absolute file names if you don't have them in your path;
55 # or use environment vars.
56
57 chgrpprog=${CHGRPPROG-chgrp}
58 chmodprog=${CHMODPROG-chmod}
59 chownprog=${CHOWNPROG-chown}
60 cmpprog=${CMPPROG-cmp}
61 cpprog=${CPPROG-cp}
62 mkdirprog=${MKDIRPROG-mkdir}
63 mvprog=${MVPROG-mv}
64 rmprog=${RMPROG-rm}
65 stripprog=${STRIPPROG-strip}
66
67 posix_mkdir=
68
69 # Desired mode of installed file.
70 mode=0755
71
72 # Create dirs (including intermediate dirs) using mode 755.
73 # This is like GNU 'install' as of coreutils 8.32 (2020).
74 mkdir_umask=22
75
76 backupsuffix=
77 chgrpcmd=
78 chmodcmd=$chmodprog
79 chowncmd=
80 mvcmd=$mvprog
81 rmcmd="$rmprog -f"
82 stripcmd=
83
84 src=
85 dst=
86 dir_arg=
87 dst_arg=
88
89 copy_on_change=false
90 is_target_a_directory=possibly
91
92 usage="\
93 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
94 or: $0 [OPTION]... SRCFILES... DIRECTORY
95 or: $0 [OPTION]... -t DIRECTORY SRCFILES...
96 or: $0 [OPTION]... -d DIRECTORIES...
97
98 In the 1st form, copy SRCFILE to DSTFILE.
99 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
100 In the 4th, create DIRECTORIES.
101
102 Options:
103 --help display this help and exit.
104 --version display version info and exit.
105
106 -c (ignored)
107 -C install only if different (preserve data modification time)
108 -d create directories instead of installing files.
109 -g GROUP $chgrpprog installed files to GROUP.
110 -m MODE $chmodprog installed files to MODE.
111 -o USER $chownprog installed files to USER.
112 -p pass -p to $cpprog.
113 -s $stripprog installed files.
114 -S SUFFIX attempt to back up existing files, with suffix SUFFIX.
115 -t DIRECTORY install into DIRECTORY.
116 -T report an error if DSTFILE is a directory.
117
118 Environment variables override the default commands:
119 CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
120 RMPROG STRIPPROG
121
122 By default, rm is invoked with -f; when overridden with RMPROG,
123 it's up to you to specify -f if you want it.
124
125 If -S is not specified, no backups are attempted.
126
127 Email bug reports to bug-automake@gnu.org.
128 Automake home page: https://www.gnu.org/software/automake/
129 "
130
131 while test $# -ne 0; do
132 case $1 in
133 -c) ;;
134
135 -C) copy_on_change=true;;
136
137 -d) dir_arg=true;;
138
139 -g) chgrpcmd="$chgrpprog $2"
140 shift;;
141
142 --help) echo "$usage"; exit $?;;
143
144 -m) mode=$2
145 case $mode in
146 *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
147 echo "$0: invalid mode: $mode" >&2
148 exit 1;;
149 esac
150 shift;;
151
152 -o) chowncmd="$chownprog $2"
153 shift;;
154
155 -p) cpprog="$cpprog -p";;
156
157 -s) stripcmd=$stripprog;;
158
159 -S) backupsuffix="$2"
160 shift;;
161
162 -t)
163 is_target_a_directory=always
164 dst_arg=$2
165 # Protect names problematic for 'test' and other utilities.
166 case $dst_arg in
167 -* | [=\(\)!]) dst_arg=./$dst_arg;;
168 esac
169 shift;;
170
171 -T) is_target_a_directory=never;;
172
173 --version) echo "$0 $scriptversion"; exit $?;;
174
175 --) shift
176 break;;
177
178 -*) echo "$0: invalid option: $1" >&2
179 exit 1;;
180
181 *) break;;
182 esac
183 shift
184 done
185
186 # We allow the use of options -d and -T together, by making -d
187 # take the precedence; this is for compatibility with GNU install.
188
189 if test -n "$dir_arg"; then
190 if test -n "$dst_arg"; then
191 echo "$0: target directory not allowed when installing a directory." >&2
192 exit 1
193 fi
194 fi
195
196 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
197 # When -d is used, all remaining arguments are directories to create.
198 # When -t is used, the destination is already specified.
199 # Otherwise, the last argument is the destination. Remove it from $@.
200 for arg
201 do
202 if test -n "$dst_arg"; then
203 # $@ is not empty: it contains at least $arg.
204 set fnord "$@" "$dst_arg"
205 shift # fnord
206 fi
207 shift # arg
208 dst_arg=$arg
209 # Protect names problematic for 'test' and other utilities.
210 case $dst_arg in
211 -* | [=\(\)!]) dst_arg=./$dst_arg;;
212 esac
213 done
214 fi
215
216 if test $# -eq 0; then
217 if test -z "$dir_arg"; then
218 echo "$0: no input file specified." >&2
219 exit 1
220 fi
221 # It's OK to call 'install-sh -d' without argument.
222 # This can happen when creating conditional directories.
223 exit 0
224 fi
225
226 if test -z "$dir_arg"; then
227 if test $# -gt 1 || test "$is_target_a_directory" = always; then
228 if test ! -d "$dst_arg"; then
229 echo "$0: $dst_arg: Is not a directory." >&2
230 exit 1
231 fi
232 fi
233 fi
234
235 if test -z "$dir_arg"; then
236 do_exit='(exit $ret); exit $ret'
237 trap "ret=129; $do_exit" 1
238 trap "ret=130; $do_exit" 2
239 trap "ret=141; $do_exit" 13
240 trap "ret=143; $do_exit" 15
241
242 # Set umask so as not to create temps with too-generous modes.
243 # However, 'strip' requires both read and write access to temps.
244 case $mode in
245 # Optimize common cases.
246 *644) cp_umask=133;;
247 *755) cp_umask=22;;
248
249 *[0-7])
250 if test -z "$stripcmd"; then
251 u_plus_rw=
252 else
253 u_plus_rw='% 200'
254 fi
255 cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
256 *)
257 if test -z "$stripcmd"; then
258 u_plus_rw=
259 else
260 u_plus_rw=,u+rw
261 fi
262 cp_umask=$mode$u_plus_rw;;
263 esac
264 fi
265
266 for src
267 do
268 # Protect names problematic for 'test' and other utilities.
269 case $src in
270 -* | [=\(\)!]) src=./$src;;
271 esac
272
273 if test -n "$dir_arg"; then
274 dst=$src
275 dstdir=$dst
276 test -d "$dstdir"
277 dstdir_status=$?
278 # Don't chown directories that already exist.
279 if test $dstdir_status = 0; then
280 chowncmd=""
281 fi
282 else
283
284 # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
285 # might cause directories to be created, which would be especially bad
286 # if $src (and thus $dsttmp) contains '*'.
287 if test ! -f "$src" && test ! -d "$src"; then
288 echo "$0: $src does not exist." >&2
289 exit 1
290 fi
291
292 if test -z "$dst_arg"; then
293 echo "$0: no destination specified." >&2
294 exit 1
295 fi
296 dst=$dst_arg
297
298 # If destination is a directory, append the input filename.
299 if test -d "$dst"; then
300 if test "$is_target_a_directory" = never; then
301 echo "$0: $dst_arg: Is a directory" >&2
302 exit 1
303 fi
304 dstdir=$dst
305 dstbase=`basename "$src"`
306 case $dst in
307 */) dst=$dst$dstbase;;
308 *) dst=$dst/$dstbase;;
309 esac
310 dstdir_status=0
311 else
312 dstdir=`dirname "$dst"`
313 test -d "$dstdir"
314 dstdir_status=$?
315 fi
316 fi
317
318 case $dstdir in
319 */) dstdirslash=$dstdir;;
320 *) dstdirslash=$dstdir/;;
321 esac
322
323 obsolete_mkdir_used=false
324
325 if test $dstdir_status != 0; then
326 case $posix_mkdir in
327 '')
328 # With -d, create the new directory with the user-specified mode.
329 # Otherwise, rely on $mkdir_umask.
330 if test -n "$dir_arg"; then
331 mkdir_mode=-m$mode
332 else
333 mkdir_mode=
334 fi
335
336 posix_mkdir=false
337 # The $RANDOM variable is not portable (e.g., dash). Use it
338 # here however when possible just to lower collision chance.
339 tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
340
341 trap '
342 ret=$?
343 rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
344 exit $ret
345 ' 0
346
347 # Because "mkdir -p" follows existing symlinks and we likely work
348 # directly in world-writeable /tmp, make sure that the '$tmpdir'
349 # directory is successfully created first before we actually test
350 # 'mkdir -p'.
351 if (umask $mkdir_umask &&
352 $mkdirprog $mkdir_mode "$tmpdir" &&
353 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
354 then
355 if test -z "$dir_arg" || {
356 # Check for POSIX incompatibilities with -m.
357 # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
358 # other-writable bit of parent directory when it shouldn't.
359 # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
360 test_tmpdir="$tmpdir/a"
361 ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
362 case $ls_ld_tmpdir in
363 d????-?r-*) different_mode=700;;
364 d????-?--*) different_mode=755;;
365 *) false;;
366 esac &&
367 $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
368 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
369 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
370 }
371 }
372 then posix_mkdir=:
373 fi
374 rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
375 else
376 # Remove any dirs left behind by ancient mkdir implementations.
377 rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
378 fi
379 trap '' 0;;
380 esac
381
382 if
383 $posix_mkdir && (
384 umask $mkdir_umask &&
385 $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
386 )
387 then :
388 else
389
390 # mkdir does not conform to POSIX,
391 # or it failed possibly due to a race condition. Create the
392 # directory the slow way, step by step, checking for races as we go.
393
394 case $dstdir in
395 /*) prefix='/';;
396 [-=\(\)!]*) prefix='./';;
397 *) prefix='';;
398 esac
399
400 oIFS=$IFS
401 IFS=/
402 set -f
403 set fnord $dstdir
404 shift
405 set +f
406 IFS=$oIFS
407
408 prefixes=
409
410 for d
411 do
412 test X"$d" = X && continue
413
414 prefix=$prefix$d
415 if test -d "$prefix"; then
416 prefixes=
417 else
418 if $posix_mkdir; then
419 (umask $mkdir_umask &&
420 $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
421 # Don't fail if two instances are running concurrently.
422 test -d "$prefix" || exit 1
423 else
424 case $prefix in
425 *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
426 *) qprefix=$prefix;;
427 esac
428 prefixes="$prefixes '$qprefix'"
429 fi
430 fi
431 prefix=$prefix/
432 done
433
434 if test -n "$prefixes"; then
435 # Don't fail if two instances are running concurrently.
436 (umask $mkdir_umask &&
437 eval "\$doit_exec \$mkdirprog $prefixes") ||
438 test -d "$dstdir" || exit 1
439 obsolete_mkdir_used=true
440 fi
441 fi
442 fi
443
444 if test -n "$dir_arg"; then
445 { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
446 { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
447 { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
448 test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
449 else
450
451 # Make a couple of temp file names in the proper directory.
452 dsttmp=${dstdirslash}_inst.$$_
453 rmtmp=${dstdirslash}_rm.$$_
454
455 # Trap to clean up those temp files at exit.
456 trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
457
458 # Copy the file name to the temp name.
459 (umask $cp_umask &&
460 { test -z "$stripcmd" || {
461 # Create $dsttmp read-write so that cp doesn't create it read-only,
462 # which would cause strip to fail.
463 if test -z "$doit"; then
464 : >"$dsttmp" # No need to fork-exec 'touch'.
465 else
466 $doit touch "$dsttmp"
467 fi
468 }
469 } &&
470 $doit_exec $cpprog "$src" "$dsttmp") &&
471
472 # and set any options; do chmod last to preserve setuid bits.
473 #
474 # If any of these fail, we abort the whole thing. If we want to
475 # ignore errors from any of these, just make sure not to ignore
476 # errors from the above "$doit $cpprog $src $dsttmp" command.
477 #
478 { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
479 { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
480 { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
481 { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
482
483 # If -C, don't bother to copy if it wouldn't change the file.
484 if $copy_on_change &&
485 old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
486 new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
487 set -f &&
488 set X $old && old=:$2:$4:$5:$6 &&
489 set X $new && new=:$2:$4:$5:$6 &&
490 set +f &&
491 test "$old" = "$new" &&
492 $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
493 then
494 rm -f "$dsttmp"
495 else
496 # If $backupsuffix is set, and the file being installed
497 # already exists, attempt a backup. Don't worry if it fails,
498 # e.g., if mv doesn't support -f.
499 if test -n "$backupsuffix" && test -f "$dst"; then
500 $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
501 fi
502
503 # Rename the file to the real destination.
504 $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
505
506 # The rename failed, perhaps because mv can't rename something else
507 # to itself, or perhaps because mv is so ancient that it does not
508 # support -f.
509 {
510 # Now remove or move aside any old file at destination location.
511 # We try this two ways since rm can't unlink itself on some
512 # systems and the destination file might be busy for other
513 # reasons. In this case, the final cleanup might fail but the new
514 # file should still install successfully.
515 {
516 test ! -f "$dst" ||
517 $doit $rmcmd "$dst" 2>/dev/null ||
518 { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
519 { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
520 } ||
521 { echo "$0: cannot unlink or rename $dst" >&2
522 (exit 1); exit 1
523 }
524 } &&
525
526 # Now rename the file to the real destination.
527 $doit $mvcmd "$dsttmp" "$dst"
528 }
529 fi || exit 1
530
531 trap '' 0
532 fi
533 done
534
535 # Local variables:
536 # eval: (add-hook 'before-save-hook 'time-stamp)
537 # time-stamp-start: "scriptversion="
538 # time-stamp-format: "%:y-%02m-%02d.%02H"
539 # time-stamp-time-zone: "UTC0"
540 # time-stamp-end: "; # UTC"
541 # End: