244d23f931
http://www.ludd.ltu.se/~ragge/pcc/ This is based on the original Portable C Compiler by S. C. Johnson, written in the late 70's. Even though much of the compiler has been rewritten, some of the basics still remain. The goal of pcc is to produce a small, simple, fast and understandable C99 compiler under a BSD licence.
295 lines
7.0 KiB
Bash
Executable File
295 lines
7.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# install - install a program, script, or datafile
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#
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# This originates from X11R5 (mit/util/scripts/install.sh), which was
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# later released in X11R6 (xc/config/util/install.sh) with the
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# following copyright and license.
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#
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# Copyright (C) 1994 X Consortium
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
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# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# Except as contained in this notice, the name of the X Consortium shall not
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# be used in advertising or otherwise to promote the sale, use or other deal-
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# ings in this Software without prior written authorization from the X Consor-
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# tium.
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#
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#
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# FSF changes to this file are in the public domain.
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#
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# Calling this script install-sh is preferred over install.sh, to prevent
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# `make' implicit rules from creating a file called install from it
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# when there is no Makefile.
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#
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# This script is compatible with the BSD install script, but was written
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# from scratch. It can only install one file at a time, a restriction
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# shared with many OS's install programs.
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# set DOITPROG to echo to test this script
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# Don't use :- since 4.3BSD and earlier shells don't like it.
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doit="${DOITPROG-}"
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# put in absolute paths if you don't have them in your path; or use env. vars.
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mvprog="${MVPROG-mv}"
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cpprog="${CPPROG-cp}"
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chmodprog="${CHMODPROG-chmod}"
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chownprog="${CHOWNPROG-chown}"
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chgrpprog="${CHGRPPROG-chgrp}"
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stripprog="${STRIPPROG-strip}"
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rmprog="${RMPROG-rm}"
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mkdirprog="${MKDIRPROG-mkdir}"
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transformbasename=""
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transform_arg=""
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instcmd="$mvprog"
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chmodcmd="$chmodprog 0755"
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chowncmd=""
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chgrpcmd=""
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stripcmd=""
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rmcmd="$rmprog -f"
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mvcmd="$mvprog"
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src=""
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dst=""
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dir_arg=""
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while [ x"$1" != x ]; do
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case $1 in
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-c) instcmd=$cpprog
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shift
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continue;;
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-d) dir_arg=true
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shift
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continue;;
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-m) chmodcmd="$chmodprog $2"
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shift
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shift
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continue;;
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-o) chowncmd="$chownprog $2"
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shift
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shift
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continue;;
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-g) chgrpcmd="$chgrpprog $2"
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shift
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shift
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continue;;
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-s) stripcmd=$stripprog
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shift
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continue;;
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-t=*) transformarg=`echo $1 | sed 's/-t=//'`
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shift
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continue;;
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-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
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shift
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continue;;
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*) if [ x"$src" = x ]
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then
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src=$1
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else
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# this colon is to work around a 386BSD /bin/sh bug
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:
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dst=$1
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fi
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shift
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continue;;
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esac
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done
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if [ x"$src" = x ]
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then
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echo "$0: no input file specified" >&2
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exit 1
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else
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:
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fi
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if [ x"$dir_arg" != x ]; then
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dst=$src
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src=""
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if [ -d "$dst" ]; then
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instcmd=:
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chmodcmd=""
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else
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instcmd=$mkdirprog
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fi
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else
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# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
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# might cause directories to be created, which would be especially bad
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# if $src (and thus $dsttmp) contains '*'.
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if [ -f "$src" ] || [ -d "$src" ]
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then
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:
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else
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echo "$0: $src does not exist" >&2
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exit 1
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fi
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if [ x"$dst" = x ]
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then
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echo "$0: no destination specified" >&2
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exit 1
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else
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:
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fi
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# If destination is a directory, append the input filename; if your system
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# does not like double slashes in filenames, you may need to add some logic
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if [ -d "$dst" ]
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then
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dst=$dst/`basename "$src"`
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else
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:
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fi
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fi
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## this sed command emulates the dirname command
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dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
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# Make sure that the destination directory exists.
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# this part is taken from Noah Friedman's mkinstalldirs script
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# Skip lots of stat calls in the usual case.
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if [ ! -d "$dstdir" ]; then
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defaultIFS='
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'
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IFS="${IFS-$defaultIFS}"
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oIFS=$IFS
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# Some sh's can't handle IFS=/ for some reason.
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IFS='%'
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set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
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IFS=$oIFS
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pathcomp=''
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while [ $# -ne 0 ] ; do
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pathcomp=$pathcomp$1
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shift
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if [ ! -d "$pathcomp" ] ;
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then
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$mkdirprog "$pathcomp"
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else
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:
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fi
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pathcomp=$pathcomp/
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done
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fi
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if [ x"$dir_arg" != x ]
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then
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$doit $instcmd "$dst" &&
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if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
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if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
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if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
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if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
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else
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# If we're going to rename the final executable, determine the name now.
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if [ x"$transformarg" = x ]
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then
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dstfile=`basename "$dst"`
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else
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dstfile=`basename "$dst" $transformbasename |
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sed $transformarg`$transformbasename
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fi
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# don't allow the sed command to completely eliminate the filename
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if [ x"$dstfile" = x ]
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then
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dstfile=`basename "$dst"`
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else
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:
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fi
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# Make a couple of temp file names in the proper directory.
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dsttmp=$dstdir/#inst.$$#
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rmtmp=$dstdir/#rm.$$#
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# Trap to clean up temp files at exit.
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trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
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trap '(exit $?); exit' 1 2 13 15
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# Move or copy the file name to the temp name
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$doit $instcmd "$src" "$dsttmp" &&
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# and set any options; do chmod last to preserve setuid bits
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# If any of these fail, we abort the whole thing. If we want to
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# ignore errors from any of these, just make sure not to ignore
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# errors from the above "$doit $instcmd $src $dsttmp" command.
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if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
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if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
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if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
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if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
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# Now remove or move aside any old file at destination location. We try this
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# two ways since rm can't unlink itself on some systems and the destination
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# file might be busy for other reasons. In this case, the final cleanup
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# might fail but the new file should still install successfully.
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{
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if [ -f "$dstdir/$dstfile" ]
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then
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$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
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$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
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{
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echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
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(exit 1); exit
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}
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else
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:
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fi
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} &&
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# Now rename the file to the real destination.
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$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
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fi &&
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# The final little trick to "correctly" pass the exit status to the exit trap.
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{
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(exit 0); exit
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}
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