Annotation of early-roguelike/install-sh, Revision 1.1.1.1
1.1 rubenllo 1: #!/bin/sh
2: # install - install a program, script, or datafile
3:
4: scriptversion=2013-12-25.23; # 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=${STRIPPROG-strip}
66:
67: posix_mkdir=
68:
69: # Desired mode of installed file.
70: mode=0755
71:
72: chgrpcmd=
73: chmodcmd=$chmodprog
74: chowncmd=
75: mvcmd=$mvprog
76: rmcmd="$rmprog -f"
77: stripcmd=
78:
79: src=
80: dst=
81: dir_arg=
82: dst_arg=
83:
84: copy_on_change=false
85: is_target_a_directory=possibly
86:
87: usage="\
88: Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
89: or: $0 [OPTION]... SRCFILES... DIRECTORY
90: or: $0 [OPTION]... -t DIRECTORY SRCFILES...
91: or: $0 [OPTION]... -d DIRECTORIES...
92:
93: In the 1st form, copy SRCFILE to DSTFILE.
94: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
95: In the 4th, create DIRECTORIES.
96:
97: Options:
98: --help display this help and exit.
99: --version display version info and exit.
100:
101: -c (ignored)
102: -C install only if different (preserve the last data modification time)
103: -d create directories instead of installing files.
104: -g GROUP $chgrpprog installed files to GROUP.
105: -m MODE $chmodprog installed files to MODE.
106: -o USER $chownprog installed files to USER.
107: -s $stripprog installed files.
108: -t DIRECTORY install into DIRECTORY.
109: -T report an error if DSTFILE is a directory.
110:
111: Environment variables override the default commands:
112: CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
113: RMPROG STRIPPROG
114: "
115:
116: while test $# -ne 0; do
117: case $1 in
118: -c) ;;
119:
120: -C) copy_on_change=true;;
121:
122: -d) dir_arg=true;;
123:
124: -g) chgrpcmd="$chgrpprog $2"
125: shift;;
126:
127: --help) echo "$usage"; exit $?;;
128:
129: -m) mode=$2
130: case $mode in
131: *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
132: echo "$0: invalid mode: $mode" >&2
133: exit 1;;
134: esac
135: shift;;
136:
137: -o) chowncmd="$chownprog $2"
138: shift;;
139:
140: -s) stripcmd=$stripprog;;
141:
142: -t)
143: is_target_a_directory=always
144: dst_arg=$2
145: # Protect names problematic for 'test' and other utilities.
146: case $dst_arg in
147: -* | [=\(\)!]) dst_arg=./$dst_arg;;
148: esac
149: shift;;
150:
151: -T) is_target_a_directory=never;;
152:
153: --version) echo "$0 $scriptversion"; exit $?;;
154:
155: --) shift
156: break;;
157:
158: -*) echo "$0: invalid option: $1" >&2
159: exit 1;;
160:
161: *) break;;
162: esac
163: shift
164: done
165:
166: # We allow the use of options -d and -T together, by making -d
167: # take the precedence; this is for compatibility with GNU install.
168:
169: if test -n "$dir_arg"; then
170: if test -n "$dst_arg"; then
171: echo "$0: target directory not allowed when installing a directory." >&2
172: exit 1
173: fi
174: fi
175:
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 $@.
180: for arg
181: do
182: if test -n "$dst_arg"; then
183: # $@ is not empty: it contains at least $arg.
184: set fnord "$@" "$dst_arg"
185: shift # fnord
186: fi
187: shift # arg
188: dst_arg=$arg
189: # Protect names problematic for 'test' and other utilities.
190: case $dst_arg in
191: -* | [=\(\)!]) dst_arg=./$dst_arg;;
192: esac
193: done
194: fi
195:
196: if test $# -eq 0; then
197: if test -z "$dir_arg"; then
198: echo "$0: no input file specified." >&2
199: exit 1
200: fi
201: # It's OK to call 'install-sh -d' without argument.
202: # This can happen when creating conditional directories.
203: exit 0
204: fi
205:
206: if test -z "$dir_arg"; then
207: if test $# -gt 1 || test "$is_target_a_directory" = always; then
208: if test ! -d "$dst_arg"; then
209: echo "$0: $dst_arg: Is not a directory." >&2
210: exit 1
211: fi
212: fi
213: fi
214:
215: if test -z "$dir_arg"; then
216: do_exit='(exit $ret); exit $ret'
217: trap "ret=129; $do_exit" 1
218: trap "ret=130; $do_exit" 2
219: trap "ret=141; $do_exit" 13
220: trap "ret=143; $do_exit" 15
221:
222: # Set umask so as not to create temps with too-generous modes.
223: # However, 'strip' requires both read and write access to temps.
224: case $mode in
225: # Optimize common cases.
226: *644) cp_umask=133;;
227: *755) cp_umask=22;;
228:
229: *[0-7])
230: if test -z "$stripcmd"; then
231: u_plus_rw=
232: else
233: u_plus_rw='% 200'
234: fi
235: cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
236: *)
237: if test -z "$stripcmd"; then
238: u_plus_rw=
239: else
240: u_plus_rw=,u+rw
241: fi
242: cp_umask=$mode$u_plus_rw;;
243: esac
244: fi
245:
246: for src
247: do
248: # Protect names problematic for 'test' and other utilities.
249: case $src in
250: -* | [=\(\)!]) src=./$src;;
251: esac
252:
253: if test -n "$dir_arg"; then
254: dst=$src
255: dstdir=$dst
256: test -d "$dstdir"
257: dstdir_status=$?
258: else
259:
260: # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
261: # might cause directories to be created, which would be especially bad
262: # if $src (and thus $dsttmp) contains '*'.
263: if test ! -f "$src" && test ! -d "$src"; then
264: echo "$0: $src does not exist." >&2
265: exit 1
266: fi
267:
268: if test -z "$dst_arg"; then
269: echo "$0: no destination specified." >&2
270: exit 1
271: fi
272: dst=$dst_arg
273:
274: # If destination is a directory, append the input filename; won't work
275: # if double slashes aren't ignored.
276: if test -d "$dst"; then
277: if test "$is_target_a_directory" = never; then
278: echo "$0: $dst_arg: Is a directory" >&2
279: exit 1
280: fi
281: dstdir=$dst
282: dst=$dstdir/`basename "$src"`
283: dstdir_status=0
284: else
285: dstdir=`dirname "$dst"`
286: test -d "$dstdir"
287: dstdir_status=$?
288: fi
289: fi
290:
291: obsolete_mkdir_used=false
292:
293: if test $dstdir_status != 0; then
294: case $posix_mkdir in
295: '')
296: # Create intermediate dirs using mode 755 as modified by the umask.
297: # This is like FreeBSD 'install' as of 1997-10-28.
298: umask=`umask`
299: case $stripcmd.$umask in
300: # Optimize common cases.
301: *[2367][2367]) mkdir_umask=$umask;;
302: .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
303:
304: *[0-7])
305: mkdir_umask=`expr $umask + 22 \
306: - $umask % 100 % 40 + $umask % 20 \
307: - $umask % 10 % 4 + $umask % 2
308: `;;
309: *) mkdir_umask=$umask,go-w;;
310: esac
311:
312: # With -d, create the new directory with the user-specified mode.
313: # Otherwise, rely on $mkdir_umask.
314: if test -n "$dir_arg"; then
315: mkdir_mode=-m$mode
316: else
317: mkdir_mode=
318: fi
319:
320: posix_mkdir=false
321: case $umask in
322: *[123567][0-7][0-7])
323: # POSIX mkdir -p sets u+wx bits regardless of umask, which
324: # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
325: ;;
326: *)
327: tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
328: trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
329:
330: if (umask $mkdir_umask &&
331: exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
332: then
333: if test -z "$dir_arg" || {
334: # Check for POSIX incompatibilities with -m.
335: # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
336: # other-writable bit of parent directory when it shouldn't.
337: # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
338: ls_ld_tmpdir=`ls -ld "$tmpdir"`
339: case $ls_ld_tmpdir in
340: d????-?r-*) different_mode=700;;
341: d????-?--*) different_mode=755;;
342: *) false;;
343: esac &&
344: $mkdirprog -m$different_mode -p -- "$tmpdir" && {
345: ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
346: test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
347: }
348: }
349: then posix_mkdir=:
350: fi
351: rmdir "$tmpdir/d" "$tmpdir"
352: else
353: # Remove any dirs left behind by ancient mkdir implementations.
354: rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
355: fi
356: trap '' 0;;
357: esac;;
358: esac
359:
360: if
361: $posix_mkdir && (
362: umask $mkdir_umask &&
363: $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
364: )
365: then :
366: else
367:
368: # The umask is ridiculous, or mkdir does not conform to POSIX,
369: # or it failed possibly due to a race condition. Create the
370: # directory the slow way, step by step, checking for races as we go.
371:
372: case $dstdir in
373: /*) prefix='/';;
374: [-=\(\)!]*) prefix='./';;
375: *) prefix='';;
376: esac
377:
378: oIFS=$IFS
379: IFS=/
380: set -f
381: set fnord $dstdir
382: shift
383: set +f
384: IFS=$oIFS
385:
386: prefixes=
387:
388: for d
389: do
390: test X"$d" = X && continue
391:
392: prefix=$prefix$d
393: if test -d "$prefix"; then
394: prefixes=
395: else
396: if $posix_mkdir; then
397: (umask=$mkdir_umask &&
398: $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
399: # Don't fail if two instances are running concurrently.
400: test -d "$prefix" || exit 1
401: else
402: case $prefix in
403: *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
404: *) qprefix=$prefix;;
405: esac
406: prefixes="$prefixes '$qprefix'"
407: fi
408: fi
409: prefix=$prefix/
410: done
411:
412: if test -n "$prefixes"; then
413: # Don't fail if two instances are running concurrently.
414: (umask $mkdir_umask &&
415: eval "\$doit_exec \$mkdirprog $prefixes") ||
416: test -d "$dstdir" || exit 1
417: obsolete_mkdir_used=true
418: fi
419: fi
420: fi
421:
422: if test -n "$dir_arg"; then
423: { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
424: { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
425: { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
426: test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
427: else
428:
429: # Make a couple of temp file names in the proper directory.
430: dsttmp=$dstdir/_inst.$$_
431: rmtmp=$dstdir/_rm.$$_
432:
433: # Trap to clean up those temp files at exit.
434: trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
435:
436: # Copy the file name to the temp name.
437: (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
438:
439: # and set any options; do chmod last to preserve setuid bits.
440: #
441: # If any of these fail, we abort the whole thing. If we want to
442: # ignore errors from any of these, just make sure not to ignore
443: # errors from the above "$doit $cpprog $src $dsttmp" command.
444: #
445: { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
446: { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
447: { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
448: { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
449:
450: # If -C, don't bother to copy if it wouldn't change the file.
451: if $copy_on_change &&
452: old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
453: new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
454: set -f &&
455: set X $old && old=:$2:$4:$5:$6 &&
456: set X $new && new=:$2:$4:$5:$6 &&
457: set +f &&
458: test "$old" = "$new" &&
459: $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
460: then
461: rm -f "$dsttmp"
462: else
463: # Rename the file to the real destination.
464: $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
465:
466: # The rename failed, perhaps because mv can't rename something else
467: # to itself, or perhaps because mv is so ancient that it does not
468: # support -f.
469: {
470: # Now remove or move aside any old file at destination location.
471: # We try this two ways since rm can't unlink itself on some
472: # systems and the destination file might be busy for other
473: # reasons. In this case, the final cleanup might fail but the new
474: # file should still install successfully.
475: {
476: test ! -f "$dst" ||
477: $doit $rmcmd -f "$dst" 2>/dev/null ||
478: { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
479: { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
480: } ||
481: { echo "$0: cannot unlink or rename $dst" >&2
482: (exit 1); exit 1
483: }
484: } &&
485:
486: # Now rename the file to the real destination.
487: $doit $mvcmd "$dsttmp" "$dst"
488: }
489: fi || exit 1
490:
491: trap '' 0
492: fi
493: done
494:
495: # Local variables:
496: # eval: (add-hook 'write-file-hooks 'time-stamp)
497: # time-stamp-start: "scriptversion="
498: # time-stamp-format: "%:y-%02m-%02d.%02H"
499: # time-stamp-time-zone: "UTC"
500: # time-stamp-end: "; # UTC"
501: # End:
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