install-sh - platform/external/strace - Git at Google

 #!/bin/sh
 #
 # install - install a program, script, or datafile
 # This comes from X11R5 (mit/util/scripts/install.sh).
 #
 # Copyright 1991 by the Massachusetts Institute of Technology
 #
 # Permission to use, copy, modify, distribute, and sell this software and its
 # documentation for any purpose is hereby granted without fee, provided that
 # the above copyright notice appear in all copies and that both that
 # copyright notice and this permission notice appear in supporting
 # documentation, and that the name of M.I.T. not be used in advertising or
 # publicity pertaining to distribution of the software without specific,
 # written prior permission.  M.I.T. makes no representations about the
 # suitability of this software for any purpose.  It is provided "as is"
 # without express or implied warranty.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
 # `make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
 # from scratch.  It can only install one file at a time, a restriction
 # shared with many OS's install programs.


 # set DOITPROG to echo to test this script

 # Don't use :- since 4.3BSD and earlier shells don't like it.
 doit="${DOITPROG-}"


 # put in absolute paths if you don't have them in your path; or use env. vars.

 mvprog="${MVPROG-mv}"
 cpprog="${CPPROG-cp}"
 chmodprog="${CHMODPROG-chmod}"
 chownprog="${CHOWNPROG-chown}"
 chgrpprog="${CHGRPPROG-chgrp}"
 stripprog="${STRIPPROG-strip}"
 rmprog="${RMPROG-rm}"
 mkdirprog="${MKDIRPROG-mkdir}"

 transformbasename=""
 transform_arg=""
 instcmd="$mvprog"
 chmodcmd="$chmodprog 0755"
 chowncmd=""
 chgrpcmd=""
 stripcmd=""
 rmcmd="$rmprog -f"
 mvcmd="$mvprog"
 src=""
 dst=""
 dir_arg=""

 while [ x"$1" != x ]; do
     case $1 in
 	-c) instcmd=$cpprog
 	    shift
 	    continue;;

 	-d) dir_arg=true
 	    shift
 	    continue;;

 	-m) chmodcmd="$chmodprog $2"
 	    shift
 	    shift
 	    continue;;

 	-o) chowncmd="$chownprog $2"
 	    shift
 	    shift
 	    continue;;

 	-g) chgrpcmd="$chgrpprog $2"
 	    shift
 	    shift
 	    continue;;

 	-s) stripcmd=$stripprog
 	    shift
 	    continue;;

 	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
 	    shift
 	    continue;;

 	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
 	    shift
 	    continue;;

 	*)  if [ x"$src" = x ]
 	    then
 		src=$1
 	    else
 		# this colon is to work around a 386BSD /bin/sh bug
 		:
 		dst=$1
 	    fi
 	    shift
 	    continue;;
     esac
 done

 if [ x"$src" = x ]
 then
 	echo "$0: no input file specified" >&2
 	exit 1
 else
 	:
 fi

 if [ x"$dir_arg" != x ]; then
 	dst=$src
 	src=""

 	if [ -d "$dst" ]; then
 		instcmd=:
 		chmodcmd=""
 	else
 		instcmd=$mkdirprog
 	fi
 else

 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 # might cause directories to be created, which would be especially bad
 # if $src (and thus $dsttmp) contains '*'.

 	if [ -f "$src" ] || [ -d "$src" ]
 	then
 		:
 	else
 		echo "$0: $src does not exist" >&2
 		exit 1
 	fi

 	if [ x"$dst" = x ]
 	then
 		echo "$0: no destination specified" >&2
 		exit 1
 	else
 		:
 	fi

 # If destination is a directory, append the input filename; if your system
 # does not like double slashes in filenames, you may need to add some logic

 	if [ -d "$dst" ]
 	then
 		dst=$dst/`basename "$src"`
 	else
 		:
 	fi
 fi

 ## this sed command emulates the dirname command
 dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`

 # Make sure that the destination directory exists.
 #  this part is taken from Noah Friedman's mkinstalldirs script

 # Skip lots of stat calls in the usual case.
 if [ ! -d "$dstdir" ]; then
 defaultIFS='
 	'
 IFS="${IFS-$defaultIFS}"

 oIFS=$IFS
 # Some sh's can't handle IFS=/ for some reason.
 IFS='%'
 set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
 IFS=$oIFS

 pathcomp=''

 while [ $# -ne 0 ] ; do
 	pathcomp=$pathcomp$1
 	shift

 	if [ ! -d "$pathcomp" ] ;
         then
 		$mkdirprog "$pathcomp"
 	else
 		:
 	fi

 	pathcomp=$pathcomp/
 done
 fi

 if [ x"$dir_arg" != x ]
 then
 	$doit $instcmd "$dst" &&

 	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
 	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
 else

 # If we're going to rename the final executable, determine the name now.

 	if [ x"$transformarg" = x ]
 	then
 		dstfile=`basename "$dst"`
 	else
 		dstfile=`basename "$dst" $transformbasename |
 			sed $transformarg`$transformbasename
 	fi

 # don't allow the sed command to completely eliminate the filename

 	if [ x"$dstfile" = x ]
 	then
 		dstfile=`basename "$dst"`
 	else
 		:
 	fi

 # Make a couple of temp file names in the proper directory.

 	dsttmp=$dstdir/#inst.$$#
 	rmtmp=$dstdir/#rm.$$#

 # Trap to clean up temp files at exit.

 	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
 	trap '(exit $?); exit' 1 2 13 15

 # Move or copy the file name to the temp name

 	$doit $instcmd "$src" "$dsttmp" &&

 # and set any options; do chmod last to preserve setuid bits

 # If any of these fail, we abort the whole thing.  If we want to
 # ignore errors from any of these, just make sure not to ignore
 # errors from the above "$doit $instcmd $src $dsttmp" command.

 	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
 	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&

 # Now remove or move aside any old file at destination location.  We try this
 # two ways since rm can't unlink itself on some systems and the destination
 # file might be busy for other reasons.  In this case, the final cleanup
 # might fail but the new file should still install successfully.

 {
 	if [ -f "$dstdir/$dstfile" ]
 	then
 		$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
 		$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
 		{
 		  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
 		  (exit 1); exit
 		}
 	else
 		:
 	fi
 } &&

 # Now rename the file to the real destination.

 	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"

 fi &&

 # The final little trick to "correctly" pass the exit status to the exit trap.

 {
 	(exit 0); exit
 }
	#!/bin/sh
	#
	# install - install a program, script, or datafile
	# This comes from X11R5 (mit/util/scripts/install.sh).
	#
	# Copyright 1991 by the Massachusetts Institute of Technology
	#
	# Permission to use, copy, modify, distribute, and sell this software and its
	# documentation for any purpose is hereby granted without fee, provided that
	# the above copyright notice appear in all copies and that both that
	# copyright notice and this permission notice appear in supporting
	# documentation, and that the name of M.I.T. not be used in advertising or
	# publicity pertaining to distribution of the software without specific,
	# written prior permission. M.I.T. makes no representations about the
	# suitability of this software for any purpose. It is provided "as is"
	# without express or implied warranty.
	#
	# Calling this script install-sh is preferred over install.sh, to prevent
	# `make' implicit rules from creating a file called install from it
	# when there is no Makefile.
	#
	# This script is compatible with the BSD install script, but was written
	# from scratch. It can only install one file at a time, a restriction
	# shared with many OS's install programs.


	# set DOITPROG to echo to test this script

	# Don't use :- since 4.3BSD and earlier shells don't like it.
	doit="${DOITPROG-}"


	# put in absolute paths if you don't have them in your path; or use env. vars.

	mvprog="${MVPROG-mv}"
	cpprog="${CPPROG-cp}"
	chmodprog="${CHMODPROG-chmod}"
	chownprog="${CHOWNPROG-chown}"
	chgrpprog="${CHGRPPROG-chgrp}"
	stripprog="${STRIPPROG-strip}"
	rmprog="${RMPROG-rm}"
	mkdirprog="${MKDIRPROG-mkdir}"

	transformbasename=""
	transform_arg=""
	instcmd="$mvprog"
	chmodcmd="$chmodprog 0755"
	chowncmd=""
	chgrpcmd=""
	stripcmd=""
	rmcmd="$rmprog -f"
	mvcmd="$mvprog"
	src=""
	dst=""
	dir_arg=""

	while [ x"$1" != x ]; do
	case $1 in
	-c) instcmd=$cpprog
	shift
	continue;;

	-d) dir_arg=true
	shift
	continue;;

	-m) chmodcmd="$chmodprog $2"
	shift
	shift
	continue;;

	-o) chowncmd="$chownprog $2"
	shift
	shift
	continue;;

	-g) chgrpcmd="$chgrpprog $2"
	shift
	shift
	continue;;

	-s) stripcmd=$stripprog
	shift
	continue;;

	-t=*) transformarg=`echo $1 \| sed 's/-t=//'`
	shift
	continue;;

	-b=*) transformbasename=`echo $1 \| sed 's/-b=//'`
	shift
	continue;;

	*) if [ x"$src" = x ]
	then
	src=$1
	else
	# this colon is to work around a 386BSD /bin/sh bug
	:
	dst=$1
	fi
	shift
	continue;;
	esac
	done

	if [ x"$src" = x ]
	then
	echo "$0: no input file specified" >&2
	exit 1
	else
	:
	fi

	if [ x"$dir_arg" != x ]; then
	dst=$src
	src=""

	if [ -d "$dst" ]; then
	instcmd=:
	chmodcmd=""
	else
	instcmd=$mkdirprog
	fi
	else

	# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
	# might cause directories to be created, which would be especially bad
	# if $src (and thus $dsttmp) contains '*'.

	if [ -f "$src" ] \|\| [ -d "$src" ]
	then
	:
	else
	echo "$0: $src does not exist" >&2
	exit 1
	fi

	if [ x"$dst" = x ]
	then
	echo "$0: no destination specified" >&2
	exit 1
	else
	:
	fi

	# If destination is a directory, append the input filename; if your system
	# does not like double slashes in filenames, you may need to add some logic

	if [ -d "$dst" ]
	then
	dst=$dst/`basename "$src"`
	else
	:
	fi
	fi

	## this sed command emulates the dirname command
	dstdir=`echo "$dst" \| sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`

	# Make sure that the destination directory exists.
	# this part is taken from Noah Friedman's mkinstalldirs script

	# Skip lots of stat calls in the usual case.
	if [ ! -d "$dstdir" ]; then
	defaultIFS='
	'
	IFS="${IFS-$defaultIFS}"

	oIFS=$IFS
	# Some sh's can't handle IFS=/ for some reason.
	IFS='%'
	set - `echo "$dstdir" \| sed -e 's@/@%@g' -e 's@^%@/@'`
	IFS=$oIFS

	pathcomp=''

	while [ $# -ne 0 ] ; do
	pathcomp=$pathcomp$1
	shift

	if [ ! -d "$pathcomp" ] ;
	then
	$mkdirprog "$pathcomp"
	else
	:
	fi

	pathcomp=$pathcomp/
	done
	fi

	if [ x"$dir_arg" != x ]
	then
	$doit $instcmd "$dst" &&

	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
	else

	# If we're going to rename the final executable, determine the name now.

	if [ x"$transformarg" = x ]
	then
	dstfile=`basename "$dst"`
	else
	dstfile=`basename "$dst" $transformbasename \|
	sed $transformarg`$transformbasename
	fi

	# don't allow the sed command to completely eliminate the filename

	if [ x"$dstfile" = x ]
	then
	dstfile=`basename "$dst"`
	else
	:
	fi

	# Make a couple of temp file names in the proper directory.

	dsttmp=$dstdir/#inst.$$#
	rmtmp=$dstdir/#rm.$$#

	# Trap to clean up temp files at exit.

	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
	trap '(exit $?); exit' 1 2 13 15

	# Move or copy the file name to the temp name

	$doit $instcmd "$src" "$dsttmp" &&

	# and set any options; do chmod last to preserve setuid bits

	# If any of these fail, we abort the whole thing. If we want to
	# ignore errors from any of these, just make sure not to ignore
	# errors from the above "$doit $instcmd $src $dsttmp" command.

	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&

	# Now remove or move aside any old file at destination location. We try this
	# two ways since rm can't unlink itself on some systems and the destination
	# file might be busy for other reasons. In this case, the final cleanup
	# might fail but the new file should still install successfully.

	{
	if [ -f "$dstdir/$dstfile" ]
	then
	$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \|\|
	$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \|\|
	{
	echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
	(exit 1); exit
	}
	else
	:
	fi
	} &&

	# Now rename the file to the real destination.

	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"

	fi &&

	# The final little trick to "correctly" pass the exit status to the exit trap.

	{
	(exit 0); exit
	}