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/install-sh

http://github.com/fizx/parsley
Shell | 507 lines | 342 code | 63 blank | 102 comment | 56 complexity | 8bff9d6a50300d4b8147940002581a5d MD5 | raw file
  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: