1#!/bin/sh
2# install - install a program, script, or datafile
3
4scriptversion=2004-04-01.17
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.
48doit="${DOITPROG-}"
49
50# put in absolute paths if you don't have them in your path; or use env. vars.
51
52mvprog="${MVPROG-mv}"
53cpprog="${CPPROG-cp}"
54chmodprog="${CHMODPROG-chmod}"
55chownprog="${CHOWNPROG-chown}"
56chgrpprog="${CHGRPPROG-chgrp}"
57stripprog="${STRIPPROG-strip}"
58rmprog="${RMPROG-rm}"
59mkdirprog="${MKDIRPROG-mkdir}"
60
61transformbasename=
62transform_arg=
63instcmd="$mvprog"
64chmodcmd="$chmodprog 0755"
65chowncmd=
66chgrpcmd=
67stripcmd=
68rmcmd="$rmprog -f"
69mvcmd="$mvprog"
70src=
71dst=
72dir_arg=
73
74usage="Usage: $0 [OPTION]... SRCFILE DSTFILE
75   or: $0 [OPTION]... SRCFILES... DIRECTORY
76   or: $0 -d DIRECTORIES...
77
78In the first form, install SRCFILE to DSTFILE, removing SRCFILE by default.
79In the second, create the directory path DIR.
80
81Options:
82-b=TRANSFORMBASENAME
83-c         copy source (using $cpprog) instead of moving (using $mvprog).
84-d         create directories instead of installing files.
85-g GROUP   $chgrp installed files to GROUP.
86-m MODE    $chmod installed files to MODE.
87-o USER    $chown installed files to USER.
88-s         strip installed files (using $stripprog).
89-t=TRANSFORM
90--help     display this help and exit.
91--version  display version info and exit.
92
93Environment variables override the default commands:
94  CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
95"
96
97while test -n "$1"; do
98  case $1 in
99    -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
100        shift
101        continue;;
102
103    -c) instcmd=$cpprog
104        shift
105        continue;;
106
107    -d) dir_arg=true
108        shift
109        continue;;
110
111    -g) chgrpcmd="$chgrpprog $2"
112        shift
113        shift
114        continue;;
115
116    --help) echo "$usage"; exit 0;;
117
118    -m) chmodcmd="$chmodprog $2"
119        shift
120        shift
121        continue;;
122
123    -o) chowncmd="$chownprog $2"
124        shift
125        shift
126        continue;;
127
128    -s) stripcmd=$stripprog
129        shift
130        continue;;
131
132    -t=*) transformarg=`echo $1 | sed 's/-t=//'`
133        shift
134        continue;;
135
136    --version) echo "$0 $scriptversion"; exit 0;;
137
138    *)  # When -d is used, all remaining arguments are directories to create.
139	test -n "$dir_arg" && break
140        # Otherwise, the last argument is the destination.  Remove it from $@.
141	for arg
142	do
143          if test -n "$dstarg"; then
144	    # $@ is not empty: it contains at least $arg.
145	    set fnord "$@" "$dstarg"
146	    shift # fnord
147	  fi
148	  shift # arg
149	  dstarg=$arg
150	done
151	break;;
152  esac
153done
154
155if test -z "$1"; then
156  if test -z "$dir_arg"; then
157    echo "$0: no input file specified." >&2
158    exit 1
159  fi
160  # It's OK to call `install-sh -d' without argument.
161  # This can happen when creating conditional directories.
162  exit 0
163fi
164
165for src
166do
167  # Protect names starting with `-'.
168  case $src in
169    -*) src=./$src ;;
170  esac
171
172  if test -n "$dir_arg"; then
173    dst=$src
174    src=
175
176    if test -d "$dst"; then
177      instcmd=:
178      chmodcmd=
179    else
180      instcmd=$mkdirprog
181    fi
182  else
183    # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
184    # might cause directories to be created, which would be especially bad
185    # if $src (and thus $dsttmp) contains '*'.
186    if test ! -f "$src" && test ! -d "$src"; then
187      echo "$0: $src does not exist." >&2
188      exit 1
189    fi
190
191    if test -z "$dstarg"; then
192      echo "$0: no destination specified." >&2
193      exit 1
194    fi
195
196    dst=$dstarg
197    # Protect names starting with `-'.
198    case $dst in
199      -*) dst=./$dst ;;
200    esac
201
202    # If destination is a directory, append the input filename; won't work
203    # if double slashes aren't ignored.
204    if test -d "$dst"; then
205      dst=$dst/`basename "$src"`
206    fi
207  fi
208
209  # This sed command emulates the dirname command.
210  dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
211
212  # Make sure that the destination directory exists.
213
214  # Skip lots of stat calls in the usual case.
215  if test ! -d "$dstdir"; then
216    defaultIFS='
217	 '
218    IFS="${IFS-$defaultIFS}"
219
220    oIFS=$IFS
221    # Some sh's can't handle IFS=/ for some reason.
222    IFS='%'
223    set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
224    IFS=$oIFS
225
226    pathcomp=
227
228    while test $# -ne 0 ; do
229      pathcomp=$pathcomp$1
230      shift
231      if test ! -d "$pathcomp"; then
232        $mkdirprog "$pathcomp" || lasterr=$?
233	# mkdir can fail with a `File exist' error in case several
234	# install-sh are creating the directory concurrently.  This
235	# is OK.
236	test ! -d "$pathcomp" && { (exit ${lasterr-1}); exit; }
237      fi
238      pathcomp=$pathcomp/
239    done
240  fi
241
242  if test -n "$dir_arg"; then
243    $doit $instcmd "$dst" \
244      && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
245      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
246      && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
247      && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
248
249  else
250    # If we're going to rename the final executable, determine the name now.
251    if test -z "$transformarg"; then
252      dstfile=`basename "$dst"`
253    else
254      dstfile=`basename "$dst" $transformbasename \
255               | sed $transformarg`$transformbasename
256    fi
257
258    # don't allow the sed command to completely eliminate the filename.
259    test -z "$dstfile" && dstfile=`basename "$dst"`
260
261    # Make a couple of temp file names in the proper directory.
262    dsttmp=$dstdir/_inst.$$_
263    rmtmp=$dstdir/_rm.$$_
264
265    # Trap to clean up those temp files at exit.
266    trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
267    trap '(exit $?); exit' 1 2 13 15
268
269    # Move or copy the file name to the temp name
270    $doit $instcmd "$src" "$dsttmp" &&
271
272    # and set any options; do chmod last to preserve setuid bits.
273    #
274    # If any of these fail, we abort the whole thing.  If we want to
275    # ignore errors from any of these, just make sure not to ignore
276    # errors from the above "$doit $instcmd $src $dsttmp" command.
277    #
278    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
279      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
280      && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
281      && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
282
283    # Now rename the file to the real destination.
284    { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
285      || {
286	   # The rename failed, perhaps because mv can't rename something else
287	   # to itself, or perhaps because mv is so ancient that it does not
288	   # support -f.
289
290	   # Now remove or move aside any old file at destination location.
291	   # We try this two ways since rm can't unlink itself on some
292	   # systems and the destination file might be busy for other
293	   # reasons.  In this case, the final cleanup might fail but the new
294	   # file should still install successfully.
295	   {
296	     if test -f "$dstdir/$dstfile"; then
297	       $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
298	       || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
299	       || {
300		 echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
301		 (exit 1); exit
302	       }
303	     else
304	       :
305	     fi
306	   } &&
307
308	   # Now rename the file to the real destination.
309	   $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
310	 }
311    }
312  fi || { (exit 1); exit; }
313done
314
315# The final little trick to "correctly" pass the exit status to the exit trap.
316{
317  (exit 0); exit
318}
319
320# Local variables:
321# eval: (add-hook 'write-file-hooks 'time-stamp)
322# time-stamp-start: "scriptversion="
323# time-stamp-format: "%:y-%02m-%02d.%02H"
324# time-stamp-end: "$"
325# End:
326