Function ExampleCreate_fat32WithDirsAndFiles

example_test.go:106–147

Create a disk of size 20MB with an MBR partition table, a single partition beginning at block 2048 (1MB), of size 10MB filled with a FAT32 filesystem, and create some directories and files in that filesystem.

()

// Create a disk of size 20MB with an MBR partition table, a single partition beginning at block 2048 (1MB),
// of size 10MB filled with a FAT32 filesystem, and create some directories and files in that filesystem.
func ExampleCreate_fat32WithDirsAndFiles() {
	var size int64 = 20 * 1024 * 1024 // 20 MB

	diskImg := "/tmp/disk.img"
	defer os.Remove(diskImg)
	theDisk, _ := diskfs.Create(diskImg, size, diskfs.SectorSizeDefault)

	table := &mbr.Table{
		LogicalSectorSize:  512,
		PhysicalSectorSize: 512,
		Partitions: []*mbr.Partition{
			{
				Bootable: false,
				Type:     mbr.Linux,
				Start:    2048,
				Size:     20480,
			},
		},
	}

	check(theDisk.Partition(table))

	fs, err := theDisk.CreateFilesystem(disk.FilesystemSpec{
		Partition: 1,
		FSType:    filesystem.TypeFat32,
	})
	check(err)

	err = fs.Mkdir("/FOO/BAR")
	check(err)

	rw, err := fs.OpenFile("/FOO/BAR/AFILE.EXE", os.O_CREATE|os.O_RDWR)
	check(err)
	b := make([]byte, 1024)

	_, err = rand.Read(b)
	check(err)

	written, err := rw.Write(b)
	check(err)
	unused(written)
}

// Create a disk of size 20MB at provided pathname using backend abstraction.
// This is a proposed way of usage after factoring out underlying file operations to the backend.