示例#1
0
文件: sync.go 项目: mefellows/parity
func CopySingle(srcFs filesystem.FileSystem, srcRaw string, destFs filesystem.FileSystem, destRaw string) error {
	fromFile, _, err := utils.MakeFile(srcRaw)
	toFile := utils.MkToFile(srcRaw, destRaw, fromFile)

	if err != nil {
		logOutput("Error opening dest file: %v", err)
		return fmt.Errorf("Error opening dest file: %v", err)
	}

	if fromFile.IsDir() {
		logOutput("Mkdir %s -> %s\n", fromFile.Path(), toFile.Path())
		destFs.MkDir(toFile)
	} else {
		logOutput("Copying file: %s -> %s\n", fromFile.Path(), toFile.Path())
		bytes, err := srcFs.Read(fromFile)
		err = destFs.Write(toFile, bytes, fromFile.Mode())
		if err != nil {
			logOutput("Error copying file %s: %v", fromFile.Path(), err)
		}
	}

	return nil
}
示例#2
0
文件: sync.go 项目: mefellows/parity
func Sync(srcRaw string, destRaw string, opts *Options) error {
	options = opts

	// Remove from src/dest strings
	src := utils.ExtractURL(srcRaw).Path
	dest := utils.ExtractURL(destRaw).Path

	// Get a handle on the to/from Filesystems
	fromFile, fromFs, err := utils.MakeFile(srcRaw)

	if err != nil {
		return err
	}
	if fromFile.IsDir() {
		toFile, toFs, err := utils.MakeFile(destRaw)

		var leftMap filesystem.FileMap
		var rightMap filesystem.FileMap
		var done sync.WaitGroup
		done.Add(2)
		go func() {
			leftMap = fromFs.FileMap(fromFile)
			done.Done()
		}()
		go func() {
			rightMap = toFs.FileMap(toFile)
			done.Done()
		}()
		done.Wait()
		diff, err := filesystem.FileMapDiff(
			leftMap, rightMap, filesystem.ModifiedComparator)

		if err == nil {
			for _, file := range diff {

				if ignoreFile(file.Path(), options.Exclude) {
					continue
				}
				toFile = utils.MkToFile(src, dest, file)

				if err == nil {
					if file.IsDir() {
						logOutput("Mkdir: %s -> %s\n", file.Path(), toFile.Path())
						toFs.MkDir(toFile)
					} else {
						logOutput("Copying file: %s -> %s\n", file.Path(), toFile.Path())
						bytes, err := fromFs.Read(file)
						err = toFs.Write(toFile, bytes, file.Mode())
						if err != nil {
							logOutput("Error copying file %s: %v", file.Path(), err)
						}
					}
				}
			}
		} else {
			logOutput("Error: %v\n", err)
		}
	} else {
		toFile := utils.MkToFile(src, dest, fromFile)
		toFs, err := utils.GetFileSystemFromFile(destRaw)
		if err != nil {
			logOutput("Error opening dest file: %v", err)
			return fmt.Errorf("Error opening dest file: %v", err)
		}

		bytes, err := fromFs.Read(fromFile)
		if err != nil {
			logOutput("Error reading from source file: %s", err.Error())
			return fmt.Errorf("Error reading source file: %v", err)
		}
		err = toFs.Write(toFile, bytes, toFile.Mode())
		if err != nil {
			logOutput("Error writing to remote path: %s", err.Error())
			return fmt.Errorf("Error write to remote path: %v", err)
		}
	}
	return err
}
示例#3
0
文件: sync.go 项目: mefellows/parity
func Watch(srcRaw string, destRaw string, opts *Options) error {
	options = opts
	watcher, err := fsnotify.NewWatcher()
	if err != nil {
		log.Fatal(err)
	}
	defer watcher.Close()

	err = filepath.Walk(srcRaw, func(path string, f os.FileInfo, err error) error {
		if f.IsDir() && !ignoreFile(path, options.Exclude) {
			err = watcher.Add(path)
			if err != nil {
				log.Fatal(err)
			}
		}
		return nil
	})
	if err != nil {
		log.Fatal(err)
	}

	fromFs, err := utils.GetFileSystemFromFile(srcRaw)
	toFs, err := utils.GetFileSystemFromFile(destRaw)
	src := utils.ExtractURL(srcRaw).Path
	dest := utils.ExtractURL(destRaw).Path

	done := make(chan bool)
	go func() {
		for {
			select {
			case event := <-watcher.Events:
				file, _, _ := utils.MakeFile(event.Name)
				if ignoreFile(file.Path(), options.Exclude) {
					continue
				}

				// File Delete
				if event.Op&fsnotify.Remove == fsnotify.Remove {
					path := utils.RelativeFilePath(src, dest, event.Name)
					err := DeleteSingle(toFs, path)
					if err != nil {
						log.Fatalf("Unable to delete remote file: %v", err)
					}
					if file.IsDir() {
						err := watcher.Remove(event.Name)
						if err != nil {
							log.Fatalf("Unable to stop watching remote file %s. %v", event.Name, err)
						}
					}
				} else {
					// File create/update
					path := utils.RelativeFilePath(src, dest, event.Name)
					CopySingle(fromFs, event.Name, toFs, path)
					if file.IsDir() && event.Op&fsnotify.Create == fsnotify.Create {
						err := watcher.Add(event.Name)
						if err != nil {
							log.Fatalf("Unable to setup watch on file %s. %v", event.Name, err)
						}
					}
				}

			case err := <-watcher.Errors:
				logOutput("Watch error: %v\n", err)
			}
		}
	}()

	err = watcher.Add(srcRaw)
	if err != nil {
		log.Fatal(err)
	}
	<-done
	return nil
}