* doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
[bison.git] / config / install-sh
1 #!/bin/sh
2 # install - install a program, script, or datafile
3
4 scriptversion=2003-06-13.21
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. It can only install one file at a time, a restriction
43 # shared with many OS's install programs.
44
45 # set DOITPROG to echo to test this script
46
47 # Don't use :- since 4.3BSD and earlier shells don't like it.
48 doit="${DOITPROG-}"
49
50 # put in absolute paths if you don't have them in your path; or use env. vars.
51
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}"
60
61 transformbasename=
62 transform_arg=
63 instcmd="$mvprog"
64 chmodcmd="$chmodprog 0755"
65 chowncmd=
66 chgrpcmd=
67 stripcmd=
68 rmcmd="$rmprog -f"
69 mvcmd="$mvprog"
70 src=
71 dst=
72 dir_arg=
73
74 usage="Usage: $0 [OPTION]... SRCFILE DSTFILE
75 or: $0 -d DIR1 DIR2...
76
77 In the first form, install SRCFILE to DSTFILE, removing SRCFILE by default.
78 In the second, create the directory path DIR.
79
80 Options:
81 -b=TRANSFORMBASENAME
82 -c copy source (using $cpprog) instead of moving (using $mvprog).
83 -d create directories instead of installing files.
84 -g GROUP $chgrp installed files to GROUP.
85 -m MODE $chmod installed files to MODE.
86 -o USER $chown installed files to USER.
87 -s strip installed files (using $stripprog).
88 -t=TRANSFORM
89 --help display this help and exit.
90 --version display version info and exit.
91
92 Environment variables override the default commands:
93 CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
94 "
95
96 while test -n "$1"; do
97 case $1 in
98 -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
99 shift
100 continue;;
101
102 -c) instcmd=$cpprog
103 shift
104 continue;;
105
106 -d) dir_arg=true
107 shift
108 continue;;
109
110 -g) chgrpcmd="$chgrpprog $2"
111 shift
112 shift
113 continue;;
114
115 --help) echo "$usage"; exit 0;;
116
117 -m) chmodcmd="$chmodprog $2"
118 shift
119 shift
120 continue;;
121
122 -o) chowncmd="$chownprog $2"
123 shift
124 shift
125 continue;;
126
127 -s) stripcmd=$stripprog
128 shift
129 continue;;
130
131 -t=*) transformarg=`echo $1 | sed 's/-t=//'`
132 shift
133 continue;;
134
135 --version) echo "$0 $scriptversion"; exit 0;;
136
137 *) if test -z "$src"; then
138 src=$1
139 else
140 # this colon is to work around a 386BSD /bin/sh bug
141 :
142 dst=$1
143 fi
144 shift
145 continue;;
146 esac
147 done
148
149 if test -z "$src"; then
150 echo "$0: no input file specified." >&2
151 exit 1
152 fi
153
154 if test -n "$dir_arg"; then
155 dst=$src
156 src=
157
158 if test -d "$dst"; then
159 instcmd=:
160 chmodcmd=
161 else
162 instcmd=$mkdirprog
163 fi
164 else
165 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
166 # might cause directories to be created, which would be especially bad
167 # if $src (and thus $dsttmp) contains '*'.
168 if test ! -f "$src" && test ! -d "$src"; then
169 echo "$0: $src does not exist." >&2
170 exit 1
171 fi
172
173 if test -z "$dst"; then
174 echo "$0: no destination specified." >&2
175 exit 1
176 fi
177
178 # If destination is a directory, append the input filename; won't work
179 # if double slashes aren't ignored.
180 if test -d "$dst"; then
181 dst=$dst/`basename "$src"`
182 fi
183 fi
184
185 ## this sed command emulates the dirname command
186 dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
187
188 # Make sure that the destination directory exists.
189 # (this part is taken from Noah Friedman's mkinstalldirs script.)
190
191 # Skip lots of stat calls in the usual case.
192 if test ! -d "$dstdir"; then
193 defaultIFS='
194 '
195 IFS="${IFS-$defaultIFS}"
196
197 oIFS=$IFS
198 # Some sh's can't handle IFS=/ for some reason.
199 IFS='%'
200 set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
201 IFS=$oIFS
202
203 pathcomp=
204
205 while test $# -ne 0 ; do
206 pathcomp=$pathcomp$1
207 shift
208 test -d "$pathcomp" || $mkdirprog "$pathcomp"
209 pathcomp=$pathcomp/
210 done
211 fi
212
213 if test -n "$dir_arg"; then
214 $doit $instcmd "$dst" \
215 && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
216 && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
217 && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
218 && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
219
220 else
221 # If we're going to rename the final executable, determine the name now.
222 if test -z "$transformarg"; then
223 dstfile=`basename "$dst"`
224 else
225 dstfile=`basename "$dst" $transformbasename \
226 | sed $transformarg`$transformbasename
227 fi
228
229 # don't allow the sed command to completely eliminate the filename.
230 test -z "$dstfile" && dstfile=`basename "$dst"`
231
232 # Make a couple of temp file names in the proper directory.
233 dsttmp=$dstdir/_inst.$$_
234 rmtmp=$dstdir/_rm.$$_
235
236 # Trap to clean up those temp files at exit.
237 trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
238 trap '(exit $?); exit' 1 2 13 15
239
240 # Move or copy the file name to the temp name
241 $doit $instcmd "$src" "$dsttmp" &&
242
243 # and set any options; do chmod last to preserve setuid bits.
244 #
245 # If any of these fail, we abort the whole thing. If we want to
246 # ignore errors from any of these, just make sure not to ignore
247 # errors from the above "$doit $instcmd $src $dsttmp" command.
248 #
249 { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
250 && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
251 && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
252 && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
253
254 # Now remove or move aside any old file at destination location. We
255 # try this two ways since rm can't unlink itself on some systems and
256 # the destination file might be busy for other reasons. In this case,
257 # the final cleanup might fail but the new file should still install
258 # successfully.
259 {
260 if test -f "$dstdir/$dstfile"; then
261 $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
262 || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
263 || {
264 echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
265 (exit 1); exit
266 }
267 else
268 :
269 fi
270 } &&
271
272 # Now rename the file to the real destination.
273 $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
274 fi &&
275
276 # The final little trick to "correctly" pass the exit status to the exit trap.
277 {
278 (exit 0); exit
279 }
280
281 # Local variables:
282 # eval: (add-hook 'write-file-hooks 'time-stamp)
283 # time-stamp-start: "scriptversion="
284 # time-stamp-format: "%:y-%02m-%02d.%02H"
285 # time-stamp-end: "$"
286 # End: