Started working on the main library (nearly complete)

file_info.go

@@ -0,0 +1,68 @@
+package squashfs
+
+import (
+	"io/fs"
+	"time"
+
+	"github.com/CalebQ42/squashfs/squashfs/directory"
+	"github.com/CalebQ42/squashfs/squashfs/inode"
+)
+
+type fileInfo struct {
+	name     string
+	size     int64
+	perm     uint32
+	modTime  uint32
+	fileType uint16
+}
+
+func (r Reader) newFileInfo(e directory.Entry) (fileInfo, error) {
+	i, err := r.r.InodeFromEntry(e)
+	if err != nil {
+		return fileInfo{}, err
+	}
+	return newFileInfo(e.Name, i), nil
+}
+
+func newFileInfo(name string, i *inode.Inode) fileInfo {
+	var size int64
+	if i.Type == inode.Fil {
+		size = int64(i.Data.(inode.File).Size)
+	} else if i.Type == inode.EFil {
+		size = int64(i.Data.(inode.EFile).Size)
+	}
+	return fileInfo{
+		name:     name,
+		size:     size,
+		perm:     uint32(i.Perm),
+		modTime:  i.ModTime,
+		fileType: i.Type,
+	}
+}
+
+func (f fileInfo) Name() string {
+	return f.name
+}
+
+func (f fileInfo) Size() int64 {
+	return f.size
+}
+
+func (f fileInfo) Mode() fs.FileMode {
+	if f.IsDir() {
+		return fs.FileMode(f.perm | uint32(fs.ModeDir))
+	}
+	return fs.FileMode(f.perm)
+}
+
+func (f fileInfo) ModTime() time.Time {
+	return time.Unix(int64(f.modTime), 0)
+}
+
+func (f fileInfo) IsDir() bool {
+	return f.fileType == inode.Dir || f.fileType == inode.EDir
+}
+
+func (f fileInfo) Sys() any {
+	return nil
+}