Annotation of embedaddon/dhcp/install-sh, revision 1.1.1.1
1.1 misho 1: #!/bin/sh
2: # install - install a program, script, or datafile
3:
4: scriptversion=2005-05-14.22
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="${MKDIRPROG-mkdir}"
60:
61: chmodcmd="$chmodprog 0755"
62: chowncmd=
63: chgrpcmd=
64: stripcmd=
65: rmcmd="$rmprog -f"
66: mvcmd="$mvprog"
67: src=
68: dst=
69: dir_arg=
70: dstarg=
71: no_target_directory=
72:
73: usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
74: or: $0 [OPTION]... SRCFILES... DIRECTORY
75: or: $0 [OPTION]... -t DIRECTORY SRCFILES...
76: or: $0 [OPTION]... -d DIRECTORIES...
77:
78: In the 1st form, copy SRCFILE to DSTFILE.
79: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
80: In the 4th, create DIRECTORIES.
81:
82: Options:
83: -c (ignored)
84: -d create directories instead of installing files.
85: -g GROUP $chgrpprog installed files to GROUP.
86: -m MODE $chmodprog installed files to MODE.
87: -o USER $chownprog installed files to USER.
88: -s $stripprog installed files.
89: -t DIRECTORY install into DIRECTORY.
90: -T report an error if DSTFILE is a directory.
91: --help display this help and exit.
92: --version display version info and exit.
93:
94: Environment variables override the default commands:
95: CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
96: "
97:
98: while test -n "$1"; do
99: case $1 in
100: -c) shift
101: continue;;
102:
103: -d) dir_arg=true
104: shift
105: continue;;
106:
107: -g) chgrpcmd="$chgrpprog $2"
108: shift
109: shift
110: continue;;
111:
112: --help) echo "$usage"; exit $?;;
113:
114: -m) chmodcmd="$chmodprog $2"
115: shift
116: shift
117: continue;;
118:
119: -o) chowncmd="$chownprog $2"
120: shift
121: shift
122: continue;;
123:
124: -s) stripcmd=$stripprog
125: shift
126: continue;;
127:
128: -t) dstarg=$2
129: shift
130: shift
131: continue;;
132:
133: -T) no_target_directory=true
134: shift
135: continue;;
136:
137: --version) echo "$0 $scriptversion"; exit $?;;
138:
139: *) # When -d is used, all remaining arguments are directories to create.
140: # When -t is used, the destination is already specified.
141: test -n "$dir_arg$dstarg" && break
142: # Otherwise, the last argument is the destination. Remove it from $@.
143: for arg
144: do
145: if test -n "$dstarg"; then
146: # $@ is not empty: it contains at least $arg.
147: set fnord "$@" "$dstarg"
148: shift # fnord
149: fi
150: shift # arg
151: dstarg=$arg
152: done
153: break;;
154: esac
155: done
156:
157: if test -z "$1"; then
158: if test -z "$dir_arg"; then
159: echo "$0: no input file specified." >&2
160: exit 1
161: fi
162: # It's OK to call `install-sh -d' without argument.
163: # This can happen when creating conditional directories.
164: exit 0
165: fi
166:
167: for src
168: do
169: # Protect names starting with `-'.
170: case $src in
171: -*) src=./$src ;;
172: esac
173:
174: if test -n "$dir_arg"; then
175: dst=$src
176: src=
177:
178: if test -d "$dst"; then
179: mkdircmd=:
180: chmodcmd=
181: else
182: mkdircmd=$mkdirprog
183: fi
184: else
185: # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
186: # might cause directories to be created, which would be especially bad
187: # if $src (and thus $dsttmp) contains '*'.
188: if test ! -f "$src" && test ! -d "$src"; then
189: echo "$0: $src does not exist." >&2
190: exit 1
191: fi
192:
193: if test -z "$dstarg"; then
194: echo "$0: no destination specified." >&2
195: exit 1
196: fi
197:
198: dst=$dstarg
199: # Protect names starting with `-'.
200: case $dst in
201: -*) dst=./$dst ;;
202: esac
203:
204: # If destination is a directory, append the input filename; won't work
205: # if double slashes aren't ignored.
206: if test -d "$dst"; then
207: if test -n "$no_target_directory"; then
208: echo "$0: $dstarg: Is a directory" >&2
209: exit 1
210: fi
211: dst=$dst/`basename "$src"`
212: fi
213: fi
214:
215: # This sed command emulates the dirname command.
216: dstdir=`echo "$dst" | sed -e 's,/*$,,;s,[^/]*$,,;s,/*$,,;s,^$,.,'`
217:
218: # Make sure that the destination directory exists.
219:
220: # Skip lots of stat calls in the usual case.
221: if test ! -d "$dstdir"; then
222: defaultIFS='
223: '
224: IFS="${IFS-$defaultIFS}"
225:
226: oIFS=$IFS
227: # Some sh's can't handle IFS=/ for some reason.
228: IFS='%'
229: set x `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
230: shift
231: IFS=$oIFS
232:
233: pathcomp=
234:
235: while test $# -ne 0 ; do
236: pathcomp=$pathcomp$1
237: shift
238: if test ! -d "$pathcomp"; then
239: $mkdirprog "$pathcomp"
240: # mkdir can fail with a `File exist' error in case several
241: # install-sh are creating the directory concurrently. This
242: # is OK.
243: test -d "$pathcomp" || exit
244: fi
245: pathcomp=$pathcomp/
246: done
247: fi
248:
249: if test -n "$dir_arg"; then
250: $doit $mkdircmd "$dst" \
251: && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
252: && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
253: && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
254: && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
255:
256: else
257: dstfile=`basename "$dst"`
258:
259: # Make a couple of temp file names in the proper directory.
260: dsttmp=$dstdir/_inst.$$_
261: rmtmp=$dstdir/_rm.$$_
262:
263: # Trap to clean up those temp files at exit.
264: trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
265: trap '(exit $?); exit' 1 2 13 15
266:
267: # Copy the file name to the temp name.
268: $doit $cpprog "$src" "$dsttmp" &&
269:
270: # and set any options; do chmod last to preserve setuid bits.
271: #
272: # If any of these fail, we abort the whole thing. If we want to
273: # ignore errors from any of these, just make sure not to ignore
274: # errors from the above "$doit $cpprog $src $dsttmp" command.
275: #
276: { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
277: && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
278: && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
279: && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
280:
281: # Now rename the file to the real destination.
282: { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
283: || {
284: # The rename failed, perhaps because mv can't rename something else
285: # to itself, or perhaps because mv is so ancient that it does not
286: # support -f.
287:
288: # Now remove or move aside any old file at destination location.
289: # We try this two ways since rm can't unlink itself on some
290: # systems and the destination file might be busy for other
291: # reasons. In this case, the final cleanup might fail but the new
292: # file should still install successfully.
293: {
294: if test -f "$dstdir/$dstfile"; then
295: $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
296: || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
297: || {
298: echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
299: (exit 1); exit 1
300: }
301: else
302: :
303: fi
304: } &&
305:
306: # Now rename the file to the real destination.
307: $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
308: }
309: }
310: fi || { (exit 1); exit 1; }
311: done
312:
313: # The final little trick to "correctly" pass the exit status to the exit trap.
314: {
315: (exit 0); exit 0
316: }
317:
318: # Local variables:
319: # eval: (add-hook 'write-file-hooks 'time-stamp)
320: # time-stamp-start: "scriptversion="
321: # time-stamp-format: "%:y-%02m-%02d.%02H"
322: # time-stamp-end: "$"
323: # End:
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