install-sh
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: