#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os 
import os.path 
import paramiko
import datetime
import re

# 配置屬性
config = {
	#本地項目路徑
	'local_path' : '',
	# 服務器項目路徑
	'ssh_path' : '',
	# 項目名
	'project_name' : '',
	# 忽視列表
	'ignore_list' : [],
	# ssh地址、端口、用戶名、密碼
	'hostname' : '',
	'port' : 22,
	'username' : '',
	'password' : '',
	# 是否強制更新
	'mandatory_update' : False,
	# 更新完成后是否重啟tomcat
	'restart_tomcat' : False,
	# tomcat bin地址
	'tomcat_path' : '',
	# 被忽略的文件類型
	'ignore_file_type_list' : []
}

# 檢查文件夾是否存在，不存在則創建
def check_folder(path):
	stdin, stdout, stderr = ssh.exec_command('find ' + path)
	result = stdout.read().decode('utf-8')
	if len(result) == 0 :
		print('目錄 %s 不存在，創建目錄' % path)
		ssh.exec_command('mkdir ' + path)
		print('%s 創建成功' % path)
		return 1
	else:
		print('目錄 %s 已存在' % path)
		return 0

# 檢查文件是否存在，不存在直接上傳，存在檢查大小是否一樣，不一樣則上傳
def check_file(local_path, ssh_path):
	# 檢查文件是否存在，不存在直接上傳
	stdin, stdout, stderr = ssh.exec_command('find ' + ssh_path)
	result = stdout.read().decode('utf-8')
	if len(result) == 0 :
		sftp.put(local_path,ssh_path)
		print('%s 上傳成功' % (ssh_path))
		return 1
	else:
		# 存在則比較文件大小
		# 本地文件大小
		lf_size = os.path.getsize(local_path)
		# 目標文件大小
		stdin, stdout, stderr = ssh.exec_command('du -b ' + ssh_path)
		result = stdout.read().decode('utf-8')
		tf_size = int(result.split('\t')[0])
		print('本地文件大小為：%s，遠程文件大小為：%s' % (lf_size, tf_size))
		if lf_size == tf_size:
			print('%s 大小與本地文件相同，不更新' % (ssh_path))
			return 0
		else:
			sftp.put(local_path,ssh_path)
			print('%s 更新成功' % (ssh_path))
			return 1

# 上傳流程開始
print('上傳開始')
begin = datetime.datetime.now()

# 文件夾列表
folder_list = []
# 文件列表
file_list = []
# ssh上文件列表
ssh_file_list = []

for parent,dirnames,filenames in os.walk(config['local_path']+config['project_name']): 
 #初始化文件夾列表
 for dirname in dirnames:
 	p = os.path.join(parent,dirname)
 	folder_list.append(p[p.find(config['project_name']):])
 #初始化文件列表
 for filename in filenames:
 	if config['ignore_list'].count(filename) == 0:
 		p = os.path.join(parent,filename)
 		file_list.append(p[p.find(config['project_name']):])

print('共有文件夾%s個，文件%s個' % (len(folder_list),len(file_list)))

# ssh控制臺
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(hostname=config['hostname'], port=config['port'], username=config['username'], password=config['password'])
# ssh傳輸
transport = paramiko.Transport((config['hostname'],config['port']))
transport.connect(username=config['username'],password=config['password'])
sftp = paramiko.SFTPClient.from_transport(transport)

# 檢查根目錄是否存在
root_path = config['ssh_path'] + config['project_name']
stdin, stdout, stderr = ssh.exec_command('find ' + root_path)
result = stdout.read().decode('utf-8')
if len(result) == 0 :
	print('目錄 %s 不存在，創建目錄' % root_path)
	ssh.exec_command('mkdir ' + root_path)
	print('%s 創建成功' % root_path)
else:
	print('目錄 %s 已存在，獲取所有文件' % root_path)
	ssh_file_list = re.split('\n',result)

# 檢查文件夾
create_folder_num = 0
for item in folder_list:
	target_folder_path = config['ssh_path'] + item
	create_folder_num = create_folder_num + check_folder(target_folder_path)

# 檢查文件
update_file_num = 0
for item in file_list:
	if config['ignore_file_type_list'].count(os.path.splitext(item)[1]) == 0:
		local_file_path = config['local_path'] + item
		target_file_path = config['ssh_path'] + item
		if config['mandatory_update']:
			sftp.put(local_file_path,target_file_path)
			print('%s 強制更新成功' % (target_file_path))
			update_file_num = update_file_num + 1
		else:
			update_file_num = update_file_num + check_file(local_file_path, target_file_path)
	else:
		print('%s 在被忽略文件類型中，所以被忽略' % item)

# 檢查ssh是否有需要刪除的文件
delete_file_num = 0
for item in ssh_file_list:
	temp = item[item.find(config['project_name']):]
	if folder_list.count(temp) == 0 and file_list.count(temp) == 0 and temp != config['project_name'] and temp != '':
		print('%s 在本地不存在，刪除' % item)
		ssh.exec_command('rm -rf ' + item)
		delete_file_num = delete_file_num + 1

end = datetime.datetime.now()
print('本次上傳結束：創建文件夾%s個，更新文件%s個，刪除文件%s個，耗時：%s' % (create_folder_num, update_file_num, delete_file_num, end-begin))

if config['restart_tomcat']:
	print('關閉tomcat')
	ssh.exec_command('sh ' + config['tomcat_path'] + 'shutdown.sh')
	print('啟動tomcat')
	ssh.exec_command('sh ' + config['tomcat_path'] + 'startup.sh')

# 關閉連接
sftp.close()
ssh.close()