1 #!/bin/sh 2 # 3 # install-symlink source destination destdir 4 # 5 6 SYMLINKS=symlinks 7 LN_S="@LN_S@" 8 RM="@RM@" 9 FORCE_RELATIVE=NO 10 FORCE_ABSOLUTE=NO 11 12 while echo $1 | grep -q -- ^- ; 13 do 14 case $1 in 15 --relative) 16 FORCE_RELATIVE=YES 17 ;; 18 --absolute) 19 FORCE_ABSOLUTE=YES 20 ;; 21 --debian) 22 FORCE_ABSOLUTE=NO 23 FORCE_RELATIVE=NO 24 ;; 25 --symlinks=*) 26 SYMLINKS=$(echo $1 | sed -e 's/--symlinks=//') 27 ;; 28 *) 29 echo "Unknown option $1" 30 exit 1 31 ;; 32 esac 33 shift; 34 done 35 36 37 FIX_SYMLINK="$SYMLINKS -c" 38 39 SRC="$1" 40 DEST="$2" 41 DESTDIR="$3" 42 43 if ! echo $SRC | grep -q ^/ ; then 44 echo $SRC: Source pathname must be absolute 45 exit 1 46 fi 47 48 if ! echo $DEST | grep -q ^/ ; then 49 echo $DEST: Destination pathname must be absolute 50 exit 1 51 fi 52 53 if ! test -e "$DESTDIR$SRC" ; then 54 echo $DESTDIR$SRC: file or directory does not exist 55 exit 1 56 fi 57 58 $RM -f "$DESTDIR$DEST" 59 60 if test "$LN_S" != "ln -s" ; then 61 $LN_S "$DESTDIR$SRC" "$DESTDIR$DEST" 62 exit 0 63 fi 64 65 if test $(dirname "$SRC") = $(dirname "$DEST") ; then 66 $LN_S "$(basename "$SRC")" "$DESTDIR$DEST" 67 exit 0 68 fi 69 70 TOP_SRC=$(echo $SRC | awk -F/ '{print $2}') 71 TOP_DEST=$(echo $DEST | awk -F/ '{print $2}') 72 73 if test $FORCE_RELATIVE = YES ; then 74 TOP_SRC=FORCE 75 TOP_DEST=FORCE 76 fi 77 78 if test $FORCE_ABSOLUTE = YES ; then 79 TOP_SRC=FORCE 80 TOP_DEST=FORCE_ABSOLUTE 81 fi 82 83 if test $TOP_SRC != $TOP_DEST ; then 84 $LN_S "$SRC" "$DESTDIR$DEST" 85 else 86 $LN_S "$DESTDIR$SRC" "$DESTDIR$DEST" 87 $FIX_SYMLINK "$DESTDIR$DEST" 88 fi 89 90
