【发布时间】：2017-04-05 22:58:29
【问题描述】：
我想创建一个 Python 脚本来备份 Google 云端硬盘文件，作为一种乐趣/学习，但我被卡住了。我下面的脚本确实有效，但它只是将我本地驱动器上所有文件的最后修改日期和创建日期备份为备份日期，并且没有保留原始创建日期/修改日期，因为它们在 Google 云端硬盘上。
这是我的脚本：
from __future__ import print_function
import sys, httplib2, os, datetime, io
from time import gmtime, strftime
from apiclient import discovery
import oauth2client
from oauth2client import client
from oauth2client import tools
from datetime import date
#########################################################################
# Fixing OSX el capitan bug ->AttributeError: 'Module_six_moves_urllib_parse' object has no attribute 'urlencode'
os.environ["PYTHONPATH"] = "/Library/Python/2.7/site-packages"
#########################################################################
CLIENT_SECRET_FILE = 'client_secrets.json'
TOKEN_FILE="drive_api_token.json"
SCOPES = 'https://www.googleapis.com/auth/drive'
APPLICATION_NAME = 'Drive File API - Python'
OUTPUT_DIR=str(date.today())+"_drive_backup"
try:
import argparse
flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
flags = None
def get_credentials():
home_dir = os.path.expanduser('~')
credential_dir = os.path.join(home_dir, '.credentials')
if not os.path.exists(credential_dir):
os.makedirs(credential_dir)
credential_path = os.path.join(credential_dir, TOKEN_FILE)
store = oauth2client.file.Storage(credential_path)
credentials = store.get()
if not credentials or credentials.invalid:
flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
flow.user_agent = APPLICATION_NAME
if flags:
credentials = tools.run_flow(flow, store, flags)
else: # Needed only for compatibility with Python 2.6
credentials = tools.run(flow, store)
print('Storing credentials to ' + credential_path)
return credentials
def prepDest():
if not os.path.exists(OUTPUT_DIR):
os.makedirs(OUTPUT_DIR)
return True
return False
def downloadFile(file_name, file_id, file_createdDate, mimeType, service):
request = service.files().get_media(fileId=file_id)
if "application/vnd.google-apps" in mimeType:
if "document" in mimeType:
request = service.files().export_media(fileId=file_id, mimeType='application/vnd.openxmlformats-officedocument.wordprocessingml.document')
file_name = file_name + ".docx"
else:
request = service.files().export_media(fileId=file_id, mimeType='application/pdf')
file_name = file_name + ".pdf"
print("Downloading -- " + file_name)
response = request.execute()
with open(os.path.join(OUTPUT_DIR, file_name), "wb") as wer:
wer.write(response)
def listFiles(service):
def getPage(pageTok):
return service.files().list(q="mimeType != 'application/vnd.google-apps.folder'",
pageSize=1000, pageToken=pageTok, fields="nextPageToken,files(id,name, createdDate, mimeType)").execute()
pT = ''; files=[]
while pT is not None:
results = getPage(pT)
pT = results.get('nextPageToken')
files = files + results.get('files', [])
return files
def main():
credentials = get_credentials()
http = credentials.authorize(httplib2.Http())
service = discovery.build('drive', 'v3', http=http)
for item in listFiles(service):
downloadFile(item.get('name'), item.get('id'), item.get('createdDate'), item.get('mimeType'), service)
if __name__ == '__main__':
main()
要尝试获取创建日期，您可以在上述脚本中看到我在createdDate 中添加的内容，这看起来像是我可以从文件中获取的一些元数据：
https://developers.google.com/drive/v2/reference/files
但我不知道我是否正确获取了该元数据，如果是，我如何将其实际分配给我下载的文件。
编辑：真的很抱歉，但我没有指定操作系统 - 这是针对 mac 的。
【问题讨论】：