Getting back into it. Maybe.

writer.go

@@ -404,13 +404,3 @@ func (w *Writer) Contains(filepath string) bool {
 	}
 	return false
 }
-
-//WriteToFilename creates the squashfs archive with the given filepath.
-func (w *Writer) WriteToFilename(filepath string) error {
-	newFil, err := os.Create(filepath)
-	if err != nil {
-		return err
-	}
-	_, err = w.WriteTo(newFil)
-	return err
-}

writer_fragment.go

@@ -27,8 +27,8 @@ func (f *fragment) addFragment(fil *fileHolder) {
 }
 
 //TODO: give info about the frags for the frag table.
-func (w *Writer) writeFragments(write io.WriterAt, off int64) (curOffset int64, err error) {
+func (w *Writer) writeFragments(write io.WriterAt, off int64) (newOff int64, err error) {
-	curOffset = off
+	newOff = off
 	var buf bytes.Buffer
 	var byts []byte
 	var n int
@@ -50,8 +50,8 @@ func (w *Writer) writeFragments(write io.WriterAt, off int64) (curOffset int64,
 		} else {
 			byts = buf.Bytes()
 		}
-		n, err = write.WriteAt(byts, curOffset)
+		n, err = write.WriteAt(byts, newOff)
-		curOffset += int64(n)
+		newOff += int64(n)
 		if err != nil {
 			return
 		}
@@ -62,7 +62,8 @@ func (w *Writer) writeFragments(write io.WriterAt, off int64) (curOffset int64,
 
 func (w *Writer) addToFragments(fil *fileHolder) {
 	fragSize := fil.blockSizes[len(fil.blockSizes)-1]
-	//only fragment if the final block is less then 80% of a full block or AlwaysFragment
+	//only fragment if the final block is less then 80% of a full block or AlwaysFragment.
+	//TODO: Make this check after looking at all fragment blocks. Below option is better, but this is easier to implement...
 	if w.Flags.AlwaysFragment || fragSize < uint32(float32(w.BlockSize)*0.8) {
 		//Try to slot the fragment into a fragment that has the perfect size left. If not, just pick the first one.
 		//TODO: possibly make this more efficient, possibly by calculating fragments all at once and seeing which combos match BlockSize perfectly.
@@ -89,22 +90,3 @@ func (w *Writer) addToFragments(fil *fileHolder) {
 		}
 	}
 }
-
-func (w *Writer) calculateFragsAndBlockSizes() {
-	for _, files := range w.structure {
-		for i := range files {
-			files[i].fragIndex = -1
-			files[i].blockSizes = make([]uint32, files[i].size/uint64(w.BlockSize))
-			for j := range files[i].blockSizes {
-				files[i].blockSizes[j] = w.BlockSize
-			}
-			fragSize := uint32(files[i].size % uint64(w.BlockSize))
-			if fragSize > 0 {
-				files[i].blockSizes = append(files[i].blockSizes, fragSize)
-				if !w.Flags.NoFragments {
-					w.addToFragments(files[i])
-				}
-			}
-		}
-	}
-}

writer_inodes.go

@@ -1,9 +1,16 @@
 package squashfs
 
+import "io"
+
 func (w *Writer) countInodes() (out uint32) {
+	out++ //for the root directory
 	for _, files := range w.structure {
-		out++
 		out += uint32(len(files))
 	}
 	return
 }
+
+func (w *Writer) writeInodeTable(wrt io.WriterAt, off int64) (newOff int64, err error) {
+	newOff = off
+	return
+}

writer_write.go

@@ -4,9 +4,20 @@ import (
 	"errors"
 	"io"
 	"math"
+	"os"
 	"time"
 )
 
+//WriteToFilename creates the squashfs archive with the given filepath.
+func (w *Writer) WriteToFilename(filepath string) error {
+	newFil, err := os.Create(filepath)
+	if err != nil {
+		return err
+	}
+	_, err = w.WriteTo(newFil)
+	return err
+}
+
 //WriteTo attempts to write the archive to the given io.Writer.
 //
 //Not working. Yet.
@@ -32,5 +43,25 @@ func (w *Writer) WriteTo(write io.Writer) (int64, error) {
 		MajorVersion:    4,
 		MinorVersion:    0,
 	}
-	return 0, errors.New("i SAID DON'T")
+	return 0, errors.New("i said don't")
+}
+
+//splits up the size of files into
+func (w *Writer) calculateFragsAndBlockSizes() {
+	for _, files := range w.structure {
+		for i := range files {
+			files[i].fragIndex = -1
+			files[i].blockSizes = make([]uint32, files[i].size/uint64(w.BlockSize))
+			for j := range files[i].blockSizes {
+				files[i].blockSizes[j] = w.BlockSize
+			}
+			fragSize := uint32(files[i].size % uint64(w.BlockSize))
+			if fragSize > 0 {
+				files[i].blockSizes = append(files[i].blockSizes, fragSize)
+				if !w.Flags.NoFragments {
+					w.addToFragments(files[i])
+				}
+			}
+		}
+	}
 }