Added more necessary parts to compression.

writer_inodes.go

@@ -0,0 +1,23 @@
+package squashfs
+
+func (w *Writer) countInodes() (out uint32) {
+	for _, files := range w.structure {
+		out++
+		out += uint32(len(files))
+	}
+	return
+}
+
+//intilialize the block sizes. These values will be overwritten with their compressed sizes later.
+func (w *Writer) calculateBlockSizes(fil *fileHolder) {
+	tmp := fil.size
+	for {
+		if tmp < uint64(w.BlockSize) {
+			fil.blockSizes = append(fil.blockSizes, uint32(tmp))
+			break
+		}
+		tmp -= uint64(w.BlockSize)
+		fil.blockSizes = append(fil.blockSizes, w.BlockSize)
+	}
+	return
+}