func main() {
flag.Parse()
if len(flag.Args()) != 2 {
log.Fatal("Usage:\n fuse mountpoint backup-folder")
}
var blobStorage blob.BlobStorage
var objectStorage object.ObjectStorage
var err error
storageFile := flag.Arg(1) + "/.objects"
if blobStorage, err = blob.NewFileBasedBlobStorage(storageFile); err != nil {
log.Fatalf("Error loading object database. Are you running from the correct directory? (%s)\n", storageFile)
}
objectStorage = object.NewJSONStorage(blobStorage)
backupFs := &BackupFs{blobStorage: blobStorage, objectStorage: objectStorage}
backupFs.init("HEAD")
nfs := fuse.NewPathNodeFs(backupFs, nil)
state, _, err := fuse.MountNodeFileSystem(flag.Arg(0), nfs, nil)
if err != nil {
log.Fatal("Mount fail: %v\n", err)
}
state.Loop()
}
func Main() {
var blobStorage blob.BlobStorage
var objectStorage object.ObjectStorage
var err error
switch os.Args[1] {
case "init":
fmt.Print("Creating a new object database...\n")
blobStorage, _ := blob.NewFileBasedBlobStorage(".objects")
blobStorage.PutWithId("source", []byte(os.Args[2]))
blobStorage.PutWithId("HEAD", []byte(""))
fmt.Printf("Saving source directory: %s\n", os.Args[2])
case "backup":
var backupDir, previous []byte
var objRef string
if blobStorage, err = blob.NewFileBasedBlobStorage(".objects"); err != nil {
fmt.Print("Error loading object database. Are you running %s from the correct directory?\n")
os.Exit(-1)
}
objectStorage = object.NewJSONStorage(blobStorage)
if backupDir, err = blobStorage.Get("source"); err != nil {
fmt.Printf("Error loading source information. %s\n", err.Error())
os.Exit(-1)
}
if previous, err = blobStorage.Get("HEAD"); err != nil {
fmt.Print("Error loading HEAD information.\n")
os.Exit(-1)
}
fmt.Printf("Starting backup of %s\n", string(backupDir))
if objRef, err = CreateBackup(os.Args[2], string(previous), string(backupDir), blobStorage, objectStorage); err != nil {
fmt.Printf("Error creating backup: %s.\n", err.Error())
os.Exit(-1)
}
blobStorage.PutWithId("HEAD", []byte(objRef))
fmt.Printf("Backup completed. Backup %s\n", objRef)
case "log":
if blobStorage, err = blob.NewFileBasedBlobStorage(".objects"); err != nil {
fmt.Print("Error loading object database. Are you running %s from the correct directory?\n")
os.Exit(-1)
}
objectStorage = object.NewJSONStorage(blobStorage)
var head []byte
var history []Backup
if head, err = blobStorage.Get("HEAD"); err != nil {
fmt.Print("Error loading HEAD information.\n")
os.Exit(-1)
}
if history, err = GetBackupHistory(string(head), objectStorage); err != nil {
fmt.Printf("Error loading backup log. %s\n", err.Error())
os.Exit(-1)
}
for _, v := range history {
fmt.Printf("Name: %s\nId: %s\nDate: %s\n\n", v.Name, v.Current, time.Unix(v.Date, 0))
}
case "migrate":
if blobStorage, err = blob.NewFileBasedBlobStorage(".objects"); err != nil {
fmt.Print("Error loading object database. Are you running %s from the correct directory?\n")
os.Exit(-1)
}
objectStorage = object.NewJSONStorage(blobStorage)
if err = ReconstructTree(os.Args[2], os.Args[3], blobStorage, objectStorage); err != nil {
fmt.Printf("Error migrating to version %s", os.Args[2])
os.Exit(-1)
}
fmt.Print("Migration completed\n")
}
}