117 lines
3.3 KiB
Python
117 lines
3.3 KiB
Python
# -*- coding:utf-8 -*-
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import _load
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import faker_data
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import csv
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from schedule import every, repeat, run_pending
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from pathlib import Path
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from datetime import datetime
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from random import choice
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"""
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说明：
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1. 用于文件的持续创建、写入、修改和创建
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2. 输出目录为data，会在里面创建当天的子目录
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3. 每1小时，生成一个10M大小左右的csv文件
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4. 每2秒，向上面的文件中写入10条数据
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5. 每10分钟，从当天的文件中随机找个1个文件，删除前100条数据
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6. 每6小时，从所有的文件中随机删除1个文件
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"""
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#TODO(MH):目前这些参数是写死的，后续看使用情况，也可以去读配置文件的
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# 定义公共的部分
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path = Path(__file__)
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data_dir = path.parent.parent / "data"
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# 初始化目录
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if not data_dir.exists():
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# shutil.rmtree(data_dir)
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data_dir.mkdir()
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# 定义文件的信息
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def file_info():
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file_info_list = []
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now = datetime.now()
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now_day = now.strftime("%Y-%m-%d")
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now_hours = now.strftime("%Y-%m-%d-%H")
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today_dir = data_dir/now_day
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filename = "filetest_" + now_hours + ".csv"
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filepath = today_dir/filename
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file_info_list.append(now_day)
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file_info_list.append(now_hours)
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file_info_list.append(today_dir)
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file_info_list.append(filename)
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file_info_list.append(filepath)
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return (file_info_list)
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# 每小时生成一个10M大小的csv文件
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# @repeat(every(1).hours) TODO(MH):这个是基于运行的时间，不是基于系统时间
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def new():
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print('new...')
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# 创建文件夹
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finfo = file_info()
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if not finfo[2].exists():
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finfo[2].mkdir()
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# 创建文件
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faker_data.save_data_csv(finfo[4], lines=200000)
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# 每2秒插入10条数据
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@repeat(every(2).seconds)
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def inserting():
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finfo = file_info()
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if finfo[4].exists():
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print('insert...')
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datas = faker_data.faker_data(lines=10)[1:]
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with open(finfo[4], 'a+', encoding='utf-8', newline='') as file_csv:
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writer = csv.writer(file_csv, delimiter=',',
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quotechar='"', quoting=csv.QUOTE_ALL)
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writer.writerows(datas)
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else:
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print(str(finfo[4])+" is not exists,wating")
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# 手动去调一下，让其整点创建
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new()
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# 每隔10分钟删除100条数据
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@repeat(every(10).minutes)
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def deleting_data():
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finfo = file_info()
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# 获取所有文件
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files = list(finfo[2].glob('*.csv'))
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if len(files) > 1:
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file = choice(files[:-1])
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print(str(file) + "start delete data ....")
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# 删除掉前100条数据
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with open(file, 'rb') as fr:
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data = fr.readlines()
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new_data = data[100:]
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# 少于100条的不删除
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if len(new_data) > 100:
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with open(file, 'wb') as fw:
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fw.writelines(new_data)
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else:
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print("file number is less 1,wait next time.")
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# 每隔6小时删除1个文件,低于3个不删除
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@repeat(every(6).hours)
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# @repeat(every(2).seconds)
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def deleting_file():
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print("deleting file ....")
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# 从data目录中随机选一个
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files = list(data_dir.rglob('*.csv'))
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if len(files) > 3:
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file = choice(files[:-1])
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file.unlink()
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else:
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print("file num is less 3, not delete. wait next time.")
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if __name__ == '__main__':
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while True:
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run_pending()
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