Question

我正在尝试将目录及其所有内容上传到Google云端硬盘。我可以在Python中完成这个并且文件上传，但是它一次只有1个文件，每个文件都要求API，而且速度非常慢。我现在正在练习一个小目录，但是当我将来有2000个文件时，它将需要for-ev-er。有没有更快的方法来完成它，可能只有一个请求而不是每个文件的请求？

由于

这是我的主要计划：

# user wants to upload to Google Drive HOME-SYNC
print("4: upload to HOME-SYNC on Google Drive")

# assuming HOME-SYNC is empty, for now first step is copying directory
# structure on local machine to HOME-SYNC
# in the future need to ask if want to backup HOME-SYNC first, and if 
# so back it up
# then need to empty it

# specify the start path
start_path = "/home/geoff/HOME-SYNC"
start_path = ff.abs_path_from_user_input(start_path)
print("START PATH")
print(start_path)

# create a directory object with start path
start_directory = Directory(start_path)

# create a google drive service resource
google_service = ff.create_google_token()

# create the directory tree on google drive
# '1YOTDKowprC2Paq95X-MIKSUG_vpuViQw' is the id of HOME-SYNC on 
# Google Drive
start_directory.create_google_drive_tree(
    'HOME-SYNC', 
    google_service, 
    '1YOTDKowprC2Paq95X-MIKSUG_vpuViQw')

print("FINISHED")

这是我的目录类：

class Directory():

    def __init__(self, directory_path):
        """Initialize directory"""
        self.directory_path = directory_path
        #print("__INIT__ DIR PATH=" + self.directory_path)

    def create_google_drive_tree(
        self, 
        google_drive_folder="", 
        google_service=False,
        parent_dir_id=''):
        """Creates the same tree in google drive that is in the Directory
        object, with 'google_drive_folder' as the ROOT directory
        (== Directory obj)"""
        # google_drive_folder = name of the current directory
        # google_service = Google API resource
        # parent_dir_id = id of the parent dir on Google drive

        # create the files_and_dirs list in the current directory
        files_and_dirs = \
            [files_and_dirs for files_and_dirs in listdir(self.directory_path)]            
        print(files_and_dirs)
        # sorts the files and dirs so their alphabetical and files come first
        files_and_dirs = \
            ff.sort_files_and_dirs(self.directory_path, files_and_dirs)        
        # loop through files and directories, outputting if its a file or dir
        # if its a dir and full_tree==true, make a recursive call by creating 
        # new Directory instance then listing the contents of that as well
        for fd in files_and_dirs:
            abs_path = ff.abs_path_from_local_dir(self.directory_path, fd)
            if ff.check_file_or_dir(abs_path) == "file":
                # its a file
                # need to copy the file to Google Drive
                file_metadata = {
                    'name': fd,
                    'parents': [parent_dir_id]
                }
                media = MediaFileUpload(abs_path)
                file = google_service.files().create(body=file_metadata,
                                                    media_body=media,
                                                    fields='id').execute()
            else:
                # its a directory
                # create the directory in google drive
                file_metadata = {
                    'name': fd,
                    'mimeType': 'application/vnd.google-apps.folder',
                    'parents': [parent_dir_id]
                }
                file = google_service.files().create(body=file_metadata,
                                                    fields='id').execute()
                # create a new Directory obj with the current Directory
                # which is a subdirectory of the current Directory
                sub_dir = Directory(abs_path)                
                # Recursively build tree inside the subdirectory
                sub_dir.create_google_drive_tree(
                    fd, 
                    google_service, 
                    file.get('id'))

我在file_functions.py

中有实用程序功能

def abs_path_from_user_input(start_path):
    if start_path[:1] == '/':
        path_type = "absolute"
    else:
        path_type = "relative"
    if path_type != "absolute":
        start_path = realpath(start_path)
    return start_path

def abs_path_from_local_dir(directory, content):
    abs_path = realpath(join(directory, content))    
    return abs_path

def sort_files_and_dirs(curr_path, files_and_dirs):
    files = []
    dirs = []
    for file_dir in files_and_dirs:
        abs_path = abs_path_from_local_dir(curr_path, file_dir)
        if check_file_or_dir(abs_path) == "file":
            files.append(file_dir)
        else:
            dirs.append(file_dir)
    files.sort()
    dirs.sort()
    combined = []
    for f in files:
        combined.append(f)
    for d in dirs:
        combined.append(d)
    return combined         

def check_file_or_dir(path):
    if not exists(path):
        print("ERROR: PATH IS NOT VALID: " + path)
        return False;
    else:
        if isfile(path):
            return "file"
        else:
            return "dir"


def is_valid_dir(path):
    if exists(path):
        # the path is a valid path
        if not isfile(path):
            # its a valid directory
            return True
        else:
            # its a valid file, but we want directories
            return False
    else:
        # the path doesnt exist
        return False

def create_google_token():
    store = file.Storage('credentials.json')
    creds = store.get()
    if not creds or creds.invalid:
        flow = client.flow_from_clientsecrets('client_secret.json', SCOPES)
        creds = tools.run_flow(flow, store)
    # service resource is the connection to google drive
    service = build('drive', 'v3', http=creds.authorize(Http()))
    return service

Answer 1

一次一个文件，每个文件都要求API，而且速度非常慢。

上传确实需要时间。

有没有更快的方法可以实现它，可能只需要一个请求而不是每个文件的请求？

没有用于上传文件的批处理方法。您需要像现在一样一次上传一个文件。请记住，有一个配额限制，你只能这么快上传。您可以考虑对此进行多线程处理，并为要上载的每个文件运行脚本版本。但是，我不建议将其视为同一个用户，并且最终会出现配额和泛滥错误。

注意：您可以批量处理元数据，但这实际上无法解决您的问题batching request.

Python Google Drive API慢速多文件上传

1 个答案: