+ # If destination is a directory, append the input filename; won't work
+ # if double slashes aren't ignored.
+ if test -d "$dst"; then
+ if test -n "$no_target_directory"; then
+ echo "$0: $dstarg: Is a directory" >&2
+ exit 1
+ fi
+ dst=$dst/`basename "$src"`
+ fi
+ fi
+
+ # This sed command emulates the dirname command.
+ dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+ # Make sure that the destination directory exists.
+
+ # Skip lots of stat calls in the usual case.
+ if test ! -d "$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 test $# -ne 0 ; do
+ pathcomp=$pathcomp$1
+ shift
+ if test ! -d "$pathcomp"; then
+ $mkdirprog "$pathcomp"
+ # mkdir can fail with a `File exist' error in case several
+ # install-sh are creating the directory concurrently. This
+ # is OK.
+ test -d "$pathcomp" || exit
+ fi
+ pathcomp=$pathcomp/
+ done
+ fi
+
+ if test -n "$dir_arg"; then
+ $doit $mkdircmd "$dst" \
+ && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
+ && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
+ && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
+ && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
+
+ else
+ dstfile=`basename "$dst"`
+
+ # Make a couple of temp file names in the proper directory.
+ dsttmp=$dstdir/_inst.$$_
+ rmtmp=$dstdir/_rm.$$_
+
+ # Trap to clean up those temp files at exit.
+ trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+ trap '(exit $?); exit' 1 2 13 15
+
+ # Copy the file name to the temp name.
+ $doit $cpprog "$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 $cpprog $src $dsttmp" command.
+ #
+ { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
+ && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
+ && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
+ && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
+
+ # Now rename the file to the real destination.
+ { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
+ || {
+ # The rename failed, perhaps because mv can't rename something else
+ # to itself, or perhaps because mv is so ancient that it does not
+ # support -f.
+
+ # 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 test -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 || { (exit 1); exit; }
+done