Annotation of gcc/install.sh, revision 1.1.1.3

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

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