1#!/bin/sh
2# install - install a program, script, or datafile
3
4scriptversion=2005-11-07.23
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="${MKDIRPROG-mkdir}"
60
61posix_glob=
62posix_mkdir=
63
64# Symbolic mode for testing mkdir with directories.
65# It is the same as 755, but also tests that "u+" works.
66test_mode=u=rwx,g=rx,o=rx,u+wx
67
68# Desired mode of installed file.
69mode=0755
70
71# Desired mode of newly created intermediate directories.
72# It is empty if not known yet.
73intermediate_mode=
74
75chmodcmd=$chmodprog
76chowncmd=
77chgrpcmd=
78stripcmd=
79rmcmd="$rmprog -f"
80mvcmd="$mvprog"
81src=
82dst=
83dir_arg=
84dstarg=
85no_target_directory=
86
87usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
88   or: $0 [OPTION]... SRCFILES... DIRECTORY
89   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
90   or: $0 [OPTION]... -d DIRECTORIES...
91
92In the 1st form, copy SRCFILE to DSTFILE.
93In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
94In the 4th, create DIRECTORIES.
95
96Options:
97-c         (ignored)
98-d         create directories instead of installing files.
99-g GROUP   $chgrpprog installed files to GROUP.
100-m MODE    $chmodprog installed files to MODE.
101-o USER    $chownprog installed files to USER.
102-s         $stripprog installed files.
103-t DIRECTORY  install into DIRECTORY.
104-T         report an error if DSTFILE is a directory.
105--help     display this help and exit.
106--version  display version info and exit.
107
108Environment variables override the default commands:
109  CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
110"
111
112while test -n "$1"; do
113  case $1 in
114    -c) shift
115        continue;;
116
117    -d) dir_arg=true
118        shift
119        continue;;
120
121    -g) chgrpcmd="$chgrpprog $2"
122        shift
123        shift
124        continue;;
125
126    --help) echo "$usage"; exit $?;;
127
128    -m) mode=$2
129        shift
130        shift
131        continue;;
132
133    -o) chowncmd="$chownprog $2"
134        shift
135        shift
136        continue;;
137
138    -s) stripcmd=$stripprog
139        shift
140        continue;;
141
142    -t) dstarg=$2
143	shift
144	shift
145	continue;;
146
147    -T) no_target_directory=true
148	shift
149	continue;;
150
151    --version) echo "$0 $scriptversion"; exit $?;;
152
153    *)  # When -d is used, all remaining arguments are directories to create.
154	# When -t is used, the destination is already specified.
155	test -n "$dir_arg$dstarg" && break
156        # Otherwise, the last argument is the destination.  Remove it from $@.
157	for arg
158	do
159          if test -n "$dstarg"; then
160	    # $@ is not empty: it contains at least $arg.
161	    set fnord "$@" "$dstarg"
162	    shift # fnord
163	  fi
164	  shift # arg
165	  dstarg=$arg
166	done
167	break;;
168  esac
169done
170
171if test -z "$1"; then
172  if test -z "$dir_arg"; then
173    echo "$0: no input file specified." >&2
174    exit 1
175  fi
176  # It's OK to call `install-sh -d' without argument.
177  # This can happen when creating conditional directories.
178  exit 0
179fi
180
181test -n "$dir_arg" || trap '(exit $?); exit' 1 2 13 15
182
183for src
184do
185  # Protect names starting with `-'.
186  case $src in
187    -*) src=./$src ;;
188  esac
189
190  if test -n "$dir_arg"; then
191    dst=$src
192    dstdir=$dst
193    test -d "$dstdir"
194    dstdir_status=$?
195  else
196
197    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
198    # might cause directories to be created, which would be especially bad
199    # if $src (and thus $dsttmp) contains '*'.
200    if test ! -f "$src" && test ! -d "$src"; then
201      echo "$0: $src does not exist." >&2
202      exit 1
203    fi
204
205    if test -z "$dstarg"; then
206      echo "$0: no destination specified." >&2
207      exit 1
208    fi
209
210    dst=$dstarg
211    # Protect names starting with `-'.
212    case $dst in
213      -*) dst=./$dst ;;
214    esac
215
216    # If destination is a directory, append the input filename; won't work
217    # if double slashes aren't ignored.
218    if test -d "$dst"; then
219      if test -n "$no_target_directory"; then
220	echo "$0: $dstarg: Is a directory" >&2
221	exit 1
222      fi
223      dstdir=$dst
224      dst=$dstdir/`basename "$src"`
225      dstdir_status=0
226    else
227      # Prefer dirname, but fall back on a substitute if dirname fails.
228      dstdir=`
229	(dirname "$dst") 2>/dev/null ||
230	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
231	     X"$dst" : 'X\(//\)[^/]' \| \
232	     X"$dst" : 'X\(//\)$' \| \
233	     X"$dst" : 'X\(/\)' \| \
234	     .       : '\(.\)' 2>/dev/null ||
235	echo X"$dst" |
236	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
237		  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
238		  /^X\(\/\/\)$/{ s//\1/; q; }
239		  /^X\(\/\).*/{ s//\1/; q; }
240		  s/.*/./; q'
241      `
242
243      test -d "$dstdir"
244      dstdir_status=$?
245    fi
246  fi
247
248  obsolete_mkdir_used=false
249
250  if test $dstdir_status != 0; then
251    case $posix_mkdir in
252      '')
253	posix_mkdir=false
254	if $mkdirprog -m $test_mode -p -- / >/dev/null 2>&1; then
255	  posix_mkdir=true
256	else
257	  # Remove any dirs left behind by ancient mkdir implementations.
258	  rmdir ./-m "$test_mode" ./-p ./-- 2>/dev/null
259	fi ;;
260    esac
261
262    if
263      $posix_mkdir && {
264
265	# With -d, create the new directory with the user-specified mode.
266	# Otherwise, create it using the same intermediate mode that
267	# mkdir -p would use when creating intermediate directories.
268	# POSIX says that this mode is "$(umask -S),u+wx", so use that
269	# if umask -S works.
270
271	if test -n "$dir_arg"; then
272	  mkdir_mode=$mode
273	else
274	  case $intermediate_mode in
275	    '')
276	      if umask_S=`(umask -S) 2>/dev/null`; then
277		intermediate_mode=$umask_S,u+wx
278	      else
279		intermediate_mode=$test_mode
280	      fi ;;
281	  esac
282	  mkdir_mode=$intermediate_mode
283	fi
284
285	$mkdirprog -m "$mkdir_mode" -p -- "$dstdir"
286      }
287    then :
288    else
289
290      # mkdir does not conform to POSIX, or it failed possibly due to
291      # a race condition.  Create the directory the slow way, step by
292      # step, checking for races as we go.
293
294      case $dstdir in
295	/*) pathcomp=/ ;;
296	-*) pathcomp=./ ;;
297	*)  pathcomp= ;;
298      esac
299
300      case $posix_glob in
301        '')
302	  if (set -f) 2>/dev/null; then
303	    posix_glob=true
304	  else
305	    posix_glob=false
306	  fi ;;
307      esac
308
309      oIFS=$IFS
310      IFS=/
311      $posix_glob && set -f
312      set fnord $dstdir
313      shift
314      $posix_glob && set +f
315      IFS=$oIFS
316
317      for d
318      do
319	test "x$d" = x && continue
320
321	pathcomp=$pathcomp$d
322	if test ! -d "$pathcomp"; then
323	  $mkdirprog "$pathcomp"
324	  # Don't fail if two instances are running concurrently.
325	  test -d "$pathcomp" || exit 1
326	fi
327	pathcomp=$pathcomp/
328      done
329      obsolete_mkdir_used=true
330    fi
331  fi
332
333  if test -n "$dir_arg"; then
334    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
335    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
336    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
337      test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dst"; } || exit 1
338  else
339
340    # Make a couple of temp file names in the proper directory.
341    dsttmp=$dstdir/_inst.$$_
342    rmtmp=$dstdir/_rm.$$_
343
344    # Trap to clean up those temp files at exit.
345    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
346
347    # Copy the file name to the temp name.
348    $doit $cpprog "$src" "$dsttmp" &&
349
350    # and set any options; do chmod last to preserve setuid bits.
351    #
352    # If any of these fail, we abort the whole thing.  If we want to
353    # ignore errors from any of these, just make sure not to ignore
354    # errors from the above "$doit $cpprog $src $dsttmp" command.
355    #
356    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
357      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
358      && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
359      && { test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dsttmp"; } &&
360
361    # Now rename the file to the real destination.
362    { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
363      || {
364	   # The rename failed, perhaps because mv can't rename something else
365	   # to itself, or perhaps because mv is so ancient that it does not
366	   # support -f.
367
368	   # Now remove or move aside any old file at destination location.
369	   # We try this two ways since rm can't unlink itself on some
370	   # systems and the destination file might be busy for other
371	   # reasons.  In this case, the final cleanup might fail but the new
372	   # file should still install successfully.
373	   {
374	     if test -f "$dst"; then
375	       $doit $rmcmd -f "$dst" 2>/dev/null \
376	       || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
377		     && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
378	       || {
379		 echo "$0: cannot unlink or rename $dst" >&2
380		 (exit 1); exit 1
381	       }
382	     else
383	       :
384	     fi
385	   } &&
386
387	   # Now rename the file to the real destination.
388	   $doit $mvcmd "$dsttmp" "$dst"
389	 }
390    } || exit 1
391
392    trap '' 0
393  fi
394done
395
396# Local variables:
397# eval: (add-hook 'write-file-hooks 'time-stamp)
398# time-stamp-start: "scriptversion="
399# time-stamp-format: "%:y-%02m-%02d.%02H"
400# time-stamp-end: "$"
401# End:
402