sync: add support for symlinks

Signed-off-by: Alejandro Mery <amery@geeks.cl>

sync2.sh

@@ -5,13 +5,13 @@ err() { echo "E: $$: $*" >&2; }
 
 FILES="$(pwd -P)"
 for x; do
-	if [ -L "$x" ]; then
-		err "$x: symlinks not supported"
-	elif [ -d "$x" ]; then
+	if [ -d "$x" ]; then
 		true # skip dirs
 	elif [ -L "$HOME/$x" ]; then
 		d0="$(readlink "$HOME/$x")"
 		d1="$(echo "$FILES/$x" | sed -e 's,/\./,/,g')"
+		d1="$(readlink -f "$d1")"
+
 		if [ "$d0" != "$d1" ]; then
 			err "$x: relinking, was [$d0]"
 			ln -snf "$d1" "$HOME/$x"
@@ -26,9 +26,11 @@ for x; do
 		d="$(echo "$FILES/$x" | sed -e 's,/\./,/,g')"
 		if [ -e "$HOME/$x" ]; then
 			info "$x: importing changes and linking"
+			rm "$d"
 			cp -a "$HOME/$x" "$d"
 		else
 			info "$x: linking"
+			d="$(readlink -f "$d")"
 		fi
 		ln -snf "$d" "$HOME/$x"
 	fi