source: install-sh

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1#!/bin/sh
2# install - install a program, script, or datafile
3
4scriptversion=2006-10-14.15
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
44nl='
45'
46IFS=" ""        $nl"
47
48# set DOITPROG to echo to test this script
49
50# Don't use :- since 4.3BSD and earlier shells don't like it.
51doit="${DOITPROG-}"
52if test -z "$doit"; then
53  doit_exec=exec
54else
55  doit_exec=$doit
56fi
57
58# Put in absolute file names if you don't have them in your path;
59# or use environment vars.
60
61mvprog="${MVPROG-mv}"
62cpprog="${CPPROG-cp}"
63chmodprog="${CHMODPROG-chmod}"
64chownprog="${CHOWNPROG-chown}"
65chgrpprog="${CHGRPPROG-chgrp}"
66stripprog="${STRIPPROG-strip}"
67rmprog="${RMPROG-rm}"
68mkdirprog="${MKDIRPROG-mkdir}"
69
70posix_glob=
71posix_mkdir=
72
73# Desired mode of installed file.
74mode=0755
75
76chmodcmd=$chmodprog
77chowncmd=
78chgrpcmd=
79stripcmd=
80rmcmd="$rmprog -f"
81mvcmd="$mvprog"
82src=
83dst=
84dir_arg=
85dstarg=
86no_target_directory=
87
88usage="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
93In the 1st form, copy SRCFILE to DSTFILE.
94In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
95In the 4th, create DIRECTORIES.
96
97Options:
98-c         (ignored)
99-d         create directories instead of installing files.
100-g GROUP   $chgrpprog installed files to GROUP.
101-m MODE    $chmodprog installed files to MODE.
102-o USER    $chownprog installed files to USER.
103-s         $stripprog installed files.
104-t DIRECTORY  install into DIRECTORY.
105-T         report an error if DSTFILE is a directory.
106--help     display this help and exit.
107--version  display version info and exit.
108
109Environment variables override the default commands:
110  CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
111"
112
113while test $# -ne 0; do
114  case $1 in
115    -c) shift
116        continue;;
117
118    -d) dir_arg=true
119        shift
120        continue;;
121
122    -g) chgrpcmd="$chgrpprog $2"
123        shift
124        shift
125        continue;;
126
127    --help) echo "$usage"; exit $?;;
128
129    -m) mode=$2
130        shift
131        shift
132        case $mode in
133          *' '* | *'    '* | *'
134'*        | *'*'* | *'?'* | *'['*)
135            echo "$0: invalid mode: $mode" >&2
136            exit 1;;
137        esac
138        continue;;
139
140    -o) chowncmd="$chownprog $2"
141        shift
142        shift
143        continue;;
144
145    -s) stripcmd=$stripprog
146        shift
147        continue;;
148
149    -t) dstarg=$2
150        shift
151        shift
152        continue;;
153
154    -T) no_target_directory=true
155        shift
156        continue;;
157
158    --version) echo "$0 $scriptversion"; exit $?;;
159
160    --) shift
161        break;;
162
163    -*) echo "$0: invalid option: $1" >&2
164        exit 1;;
165
166    *)  break;;
167  esac
168done
169
170if test $# -ne 0 && test -z "$dir_arg$dstarg"; then
171  # When -d is used, all remaining arguments are directories to create.
172  # When -t is used, the destination is already specified.
173  # Otherwise, the last argument is the destination.  Remove it from $@.
174  for arg
175  do
176    if test -n "$dstarg"; then
177      # $@ is not empty: it contains at least $arg.
178      set fnord "$@" "$dstarg"
179      shift # fnord
180    fi
181    shift # arg
182    dstarg=$arg
183  done
184fi
185
186if test $# -eq 0; then
187  if test -z "$dir_arg"; then
188    echo "$0: no input file specified." >&2
189    exit 1
190  fi
191  # It's OK to call `install-sh -d' without argument.
192  # This can happen when creating conditional directories.
193  exit 0
194fi
195
196if test -z "$dir_arg"; then
197  trap '(exit $?); exit' 1 2 13 15
198
199  # Set umask so as not to create temps with too-generous modes.
200  # However, 'strip' requires both read and write access to temps.
201  case $mode in
202    # Optimize common cases.
203    *644) cp_umask=133;;
204    *755) cp_umask=22;;
205
206    *[0-7])
207      if test -z "$stripcmd"; then
208        u_plus_rw=
209      else
210        u_plus_rw='% 200'
211      fi
212      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
213    *)
214      if test -z "$stripcmd"; then
215        u_plus_rw=
216      else
217        u_plus_rw=,u+rw
218      fi
219      cp_umask=$mode$u_plus_rw;;
220  esac
221fi
222
223for src
224do
225  # Protect names starting with `-'.
226  case $src in
227    -*) src=./$src ;;
228  esac
229
230  if test -n "$dir_arg"; then
231    dst=$src
232    dstdir=$dst
233    test -d "$dstdir"
234    dstdir_status=$?
235  else
236
237    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
238    # might cause directories to be created, which would be especially bad
239    # if $src (and thus $dsttmp) contains '*'.
240    if test ! -f "$src" && test ! -d "$src"; then
241      echo "$0: $src does not exist." >&2
242      exit 1
243    fi
244
245    if test -z "$dstarg"; then
246      echo "$0: no destination specified." >&2
247      exit 1
248    fi
249
250    dst=$dstarg
251    # Protect names starting with `-'.
252    case $dst in
253      -*) dst=./$dst ;;
254    esac
255
256    # If destination is a directory, append the input filename; won't work
257    # if double slashes aren't ignored.
258    if test -d "$dst"; then
259      if test -n "$no_target_directory"; then
260        echo "$0: $dstarg: Is a directory" >&2
261        exit 1
262      fi
263      dstdir=$dst
264      dst=$dstdir/`basename "$src"`
265      dstdir_status=0
266    else
267      # Prefer dirname, but fall back on a substitute if dirname fails.
268      dstdir=`
269        (dirname "$dst") 2>/dev/null ||
270        expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
271             X"$dst" : 'X\(//\)[^/]' \| \
272             X"$dst" : 'X\(//\)$' \| \
273             X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
274        echo X"$dst" |
275            sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
276                   s//\1/
277                   q
278                 }
279                 /^X\(\/\/\)[^/].*/{
280                   s//\1/
281                   q
282                 }
283                 /^X\(\/\/\)$/{
284                   s//\1/
285                   q
286                 }
287                 /^X\(\/\).*/{
288                   s//\1/
289                   q
290                 }
291                 s/.*/./; q'
292      `
293
294      test -d "$dstdir"
295      dstdir_status=$?
296    fi
297  fi
298
299  obsolete_mkdir_used=false
300
301  if test $dstdir_status != 0; then
302    case $posix_mkdir in
303      '')
304        # Create intermediate dirs using mode 755 as modified by the umask.
305        # This is like FreeBSD 'install' as of 1997-10-28.
306        umask=`umask`
307        case $stripcmd.$umask in
308          # Optimize common cases.
309          *[2367][2367]) mkdir_umask=$umask;;
310          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
311
312          *[0-7])
313            mkdir_umask=`expr $umask + 22 \
314              - $umask % 100 % 40 + $umask % 20 \
315              - $umask % 10 % 4 + $umask % 2
316            `;;
317          *) mkdir_umask=$umask,go-w;;
318        esac
319
320        # With -d, create the new directory with the user-specified mode.
321        # Otherwise, rely on $mkdir_umask.
322        if test -n "$dir_arg"; then
323          mkdir_mode=-m$mode
324        else
325          mkdir_mode=
326        fi
327
328        posix_mkdir=false
329        case $umask in
330          *[123567][0-7][0-7])
331            # POSIX mkdir -p sets u+wx bits regardless of umask, which
332            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
333            ;;
334          *)
335            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
336            trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
337
338            if (umask $mkdir_umask &&
339                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
340            then
341              if test -z "$dir_arg" || {
342                   # Check for POSIX incompatibilities with -m.
343                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
344                   # other-writeable bit of parent directory when it shouldn't.
345                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
346                   ls_ld_tmpdir=`ls -ld "$tmpdir"`
347                   case $ls_ld_tmpdir in
348                     d????-?r-*) different_mode=700;;
349                     d????-?--*) different_mode=755;;
350                     *) false;;
351                   esac &&
352                   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
353                     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
354                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
355                   }
356                 }
357              then posix_mkdir=:
358              fi
359              rmdir "$tmpdir/d" "$tmpdir"
360            else
361              # Remove any dirs left behind by ancient mkdir implementations.
362              rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
363            fi
364            trap '' 0;;
365        esac;;
366    esac
367
368    if
369      $posix_mkdir && (
370        umask $mkdir_umask &&
371        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
372      )
373    then :
374    else
375
376      # The umask is ridiculous, or mkdir does not conform to POSIX,
377      # or it failed possibly due to a race condition.  Create the
378      # directory the slow way, step by step, checking for races as we go.
379
380      case $dstdir in
381        /*) prefix=/ ;;
382        -*) prefix=./ ;;
383        *)  prefix= ;;
384      esac
385
386      case $posix_glob in
387        '')
388          if (set -f) 2>/dev/null; then
389            posix_glob=true
390          else
391            posix_glob=false
392          fi ;;
393      esac
394
395      oIFS=$IFS
396      IFS=/
397      $posix_glob && set -f
398      set fnord $dstdir
399      shift
400      $posix_glob && set +f
401      IFS=$oIFS
402
403      prefixes=
404
405      for d
406      do
407        test -z "$d" && continue
408
409        prefix=$prefix$d
410        if test -d "$prefix"; then
411          prefixes=
412        else
413          if $posix_mkdir; then
414            (umask=$mkdir_umask &&
415             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
416            # Don't fail if two instances are running concurrently.
417            test -d "$prefix" || exit 1
418          else
419            case $prefix in
420              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
421              *) qprefix=$prefix;;
422            esac
423            prefixes="$prefixes '$qprefix'"
424          fi
425        fi
426        prefix=$prefix/
427      done
428
429      if test -n "$prefixes"; then
430        # Don't fail if two instances are running concurrently.
431        (umask $mkdir_umask &&
432         eval "\$doit_exec \$mkdirprog $prefixes") ||
433          test -d "$dstdir" || exit 1
434        obsolete_mkdir_used=true
435      fi
436    fi
437  fi
438
439  if test -n "$dir_arg"; then
440    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
441    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
442    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
443      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
444  else
445
446    # Make a couple of temp file names in the proper directory.
447    dsttmp=$dstdir/_inst.$$_
448    rmtmp=$dstdir/_rm.$$_
449
450    # Trap to clean up those temp files at exit.
451    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
452
453    # Copy the file name to the temp name.
454    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
455
456    # and set any options; do chmod last to preserve setuid bits.
457    #
458    # If any of these fail, we abort the whole thing.  If we want to
459    # ignore errors from any of these, just make sure not to ignore
460    # errors from the above "$doit $cpprog $src $dsttmp" command.
461    #
462    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
463      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
464      && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
465      && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
466
467    # Now rename the file to the real destination.
468    { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
469      || {
470           # The rename failed, perhaps because mv can't rename something else
471           # to itself, or perhaps because mv is so ancient that it does not
472           # support -f.
473
474           # Now remove or move aside any old file at destination location.
475           # We try this two ways since rm can't unlink itself on some
476           # systems and the destination file might be busy for other
477           # reasons.  In this case, the final cleanup might fail but the new
478           # file should still install successfully.
479           {
480             if test -f "$dst"; then
481               $doit $rmcmd -f "$dst" 2>/dev/null \
482               || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
483                     && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
484               || {
485                 echo "$0: cannot unlink or rename $dst" >&2
486                 (exit 1); exit 1
487               }
488             else
489               :
490             fi
491           } &&
492
493           # Now rename the file to the real destination.
494           $doit $mvcmd "$dsttmp" "$dst"
495         }
496    } || exit 1
497
498    trap '' 0
499  fi
500done
501
502# Local variables:
503# eval: (add-hook 'write-file-hooks 'time-stamp)
504# time-stamp-start: "scriptversion="
505# time-stamp-format: "%:y-%02m-%02d.%02H"
506# time-stamp-end: "$"
507# End:
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