install-sh
author Sam Lantinga <slouken@libsdl.org>
Sun, 14 Oct 2001 19:49:02 +0000
changeset 205 13161d3d349d
parent 0 74212992fb08
permissions -rwxr-xr-x
Added double-buffering support for SVGAlib (thanks Kutak!)
     1 #!/bin/sh
     2 #
     3 # install - install a program, script, or datafile
     4 # This comes from X11R5 (mit/util/scripts/install.sh).
     5 #
     6 # Copyright 1991 by the Massachusetts Institute of Technology
     7 #
     8 # Permission to use, copy, modify, distribute, and sell this software and its
     9 # documentation for any purpose is hereby granted without fee, provided that
    10 # the above copyright notice appear in all copies and that both that
    11 # copyright notice and this permission notice appear in supporting
    12 # documentation, and that the name of M.I.T. not be used in advertising or
    13 # publicity pertaining to distribution of the software without specific,
    14 # written prior permission.  M.I.T. makes no representations about the
    15 # suitability of this software for any purpose.  It is provided "as is"
    16 # without express or implied warranty.
    17 #
    18 # Calling this script install-sh is preferred over install.sh, to prevent
    19 # `make' implicit rules from creating a file called install from it
    20 # when there is no Makefile.
    21 #
    22 # This script is compatible with the BSD install script, but was written
    23 # from scratch.  It can only install one file at a time, a restriction
    24 # shared with many OS's install programs.
    25 
    26 
    27 # set DOITPROG to echo to test this script
    28 
    29 # Don't use :- since 4.3BSD and earlier shells don't like it.
    30 doit="${DOITPROG-}"
    31 
    32 
    33 # put in absolute paths if you don't have them in your path; or use env. vars.
    34 
    35 mvprog="${MVPROG-mv}"
    36 cpprog="${CPPROG-cp}"
    37 chmodprog="${CHMODPROG-chmod}"
    38 chownprog="${CHOWNPROG-chown}"
    39 chgrpprog="${CHGRPPROG-chgrp}"
    40 stripprog="${STRIPPROG-strip}"
    41 rmprog="${RMPROG-rm}"
    42 mkdirprog="${MKDIRPROG-mkdir}"
    43 
    44 transformbasename=""
    45 transform_arg=""
    46 instcmd="$mvprog"
    47 chmodcmd="$chmodprog 0755"
    48 chowncmd=""
    49 chgrpcmd=""
    50 stripcmd=""
    51 rmcmd="$rmprog -f"
    52 mvcmd="$mvprog"
    53 src=""
    54 dst=""
    55 dir_arg=""
    56 
    57 while [ x"$1" != x ]; do
    58     case $1 in
    59 	-c) instcmd="$cpprog"
    60 	    shift
    61 	    continue;;
    62 
    63 	-d) dir_arg=true
    64 	    shift
    65 	    continue;;
    66 
    67 	-m) chmodcmd="$chmodprog $2"
    68 	    shift
    69 	    shift
    70 	    continue;;
    71 
    72 	-o) chowncmd="$chownprog $2"
    73 	    shift
    74 	    shift
    75 	    continue;;
    76 
    77 	-g) chgrpcmd="$chgrpprog $2"
    78 	    shift
    79 	    shift
    80 	    continue;;
    81 
    82 	-s) stripcmd="$stripprog"
    83 	    shift
    84 	    continue;;
    85 
    86 	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
    87 	    shift
    88 	    continue;;
    89 
    90 	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
    91 	    shift
    92 	    continue;;
    93 
    94 	*)  if [ x"$src" = x ]
    95 	    then
    96 		src=$1
    97 	    else
    98 		# this colon is to work around a 386BSD /bin/sh bug
    99 		:
   100 		dst=$1
   101 	    fi
   102 	    shift
   103 	    continue;;
   104     esac
   105 done
   106 
   107 if [ x"$src" = x ]
   108 then
   109 	echo "install:	no input file specified"
   110 	exit 1
   111 else
   112 	true
   113 fi
   114 
   115 if [ x"$dir_arg" != x ]; then
   116 	dst=$src
   117 	src=""
   118 	
   119 	if [ -d $dst ]; then
   120 		instcmd=:
   121 		chmodcmd=""
   122 	else
   123 		instcmd=mkdir
   124 	fi
   125 else
   126 
   127 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
   128 # might cause directories to be created, which would be especially bad 
   129 # if $src (and thus $dsttmp) contains '*'.
   130 
   131 	if [ -f $src -o -d $src ]
   132 	then
   133 		true
   134 	else
   135 		echo "install:  $src does not exist"
   136 		exit 1
   137 	fi
   138 	
   139 	if [ x"$dst" = x ]
   140 	then
   141 		echo "install:	no destination specified"
   142 		exit 1
   143 	else
   144 		true
   145 	fi
   146 
   147 # If destination is a directory, append the input filename; if your system
   148 # does not like double slashes in filenames, you may need to add some logic
   149 
   150 	if [ -d $dst ]
   151 	then
   152 		dst="$dst"/`basename $src`
   153 	else
   154 		true
   155 	fi
   156 fi
   157 
   158 ## this sed command emulates the dirname command
   159 dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
   160 
   161 # Make sure that the destination directory exists.
   162 #  this part is taken from Noah Friedman's mkinstalldirs script
   163 
   164 # Skip lots of stat calls in the usual case.
   165 if [ ! -d "$dstdir" ]; then
   166 defaultIFS='	
   167 '
   168 IFS="${IFS-${defaultIFS}}"
   169 
   170 oIFS="${IFS}"
   171 # Some sh's can't handle IFS=/ for some reason.
   172 IFS='%'
   173 set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
   174 IFS="${oIFS}"
   175 
   176 pathcomp=''
   177 
   178 while [ $# -ne 0 ] ; do
   179 	pathcomp="${pathcomp}${1}"
   180 	shift
   181 
   182 	if [ ! -d "${pathcomp}" ] ;
   183         then
   184 		$mkdirprog "${pathcomp}"
   185 	else
   186 		true
   187 	fi
   188 
   189 	pathcomp="${pathcomp}/"
   190 done
   191 fi
   192 
   193 if [ x"$dir_arg" != x ]
   194 then
   195 	$doit $instcmd $dst &&
   196 
   197 	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
   198 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
   199 	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
   200 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
   201 else
   202 
   203 # If we're going to rename the final executable, determine the name now.
   204 
   205 	if [ x"$transformarg" = x ] 
   206 	then
   207 		dstfile=`basename $dst`
   208 	else
   209 		dstfile=`basename $dst $transformbasename | 
   210 			sed $transformarg`$transformbasename
   211 	fi
   212 
   213 # don't allow the sed command to completely eliminate the filename
   214 
   215 	if [ x"$dstfile" = x ] 
   216 	then
   217 		dstfile=`basename $dst`
   218 	else
   219 		true
   220 	fi
   221 
   222 # Make a temp file name in the proper directory.
   223 
   224 	dsttmp=$dstdir/#inst.$$#
   225 
   226 # Move or copy the file name to the temp name
   227 
   228 	$doit $instcmd $src $dsttmp &&
   229 
   230 	trap "rm -f ${dsttmp}" 0 &&
   231 
   232 # and set any options; do chmod last to preserve setuid bits
   233 
   234 # If any of these fail, we abort the whole thing.  If we want to
   235 # ignore errors from any of these, just make sure not to ignore
   236 # errors from the above "$doit $instcmd $src $dsttmp" command.
   237 
   238 	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
   239 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
   240 	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
   241 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
   242 
   243 # Now rename the file to the real destination.
   244 
   245 	$doit $rmcmd -f $dstdir/$dstfile &&
   246 	$doit $mvcmd $dsttmp $dstdir/$dstfile 
   247 
   248 fi &&
   249 
   250 
   251 exit 0