Allow list command to specify which "type" to list

Close #15

kb

@@ -234,11 +234,25 @@ listEntries(){
 	vecho "listEntries $*"
 	cd "$dataDir" || return
 	local header="--header"
-	[ "$1" = "--noheader" ] && header=""
+	local typeorlist=""
+	while [ "$#" -gt 0 ]; do
+		case "$1" in
+			--noheader) header="" ;;
+			--normal) typeorlist+=" OR items.type = 'normal'" ;;
+			--assets) typeorlist+=" OR items.type = 'assets'" ;;
+			--links) typeorlist+=" OR items.type = 'links'" ;;
+			*) die "invalid list option: '$1'." ;;
+		esac
+		shift
+	done
+	typeorlist="$(echo "$typeorlist" | sed 's/^ OR //')"
+	[ -z "$typeorlist" ] && typeorlist="items.type = 'normal'"
+
 	echo "SELECT items.id,items.filename,items.title,items.type,
 	GROUP_CONCAT(tags.name,',') tags
 	FROM items LEFT JOIN links ON items.id = links.itemID
 	LEFT JOIN tags ON links.tagID = tags.id
+	WHERE $typeorlist
 	GROUP BY items.id;" |
 		sqlite3 --column $header "${sqliteFile}"
 }