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Merge pull request #269 from NewFuture/feat-cli-config
feat(config): supports cli argument and environment variables to set config
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| #!/usr/bin/env python | ||
| # -*- coding:utf-8 -*- | ||
| from argparse import ArgumentParser, ArgumentTypeError, Namespace, RawTextHelpFormatter | ||
| from json import load as loadjson, dump as dumpjson | ||
| from logging import error | ||
| from os import stat, environ | ||
| from time import time | ||
|
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| import sys | ||
|
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| __cli_args = {} # type: Namespace | ||
| __config = {} # type: dict | ||
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| def str2bool(v): | ||
| if isinstance(v, bool): | ||
| return v | ||
| if v.lower() in ('yes', 'true', 't', 'y', '1'): | ||
| return True | ||
| elif v.lower() in ('no', 'false', 'f', 'n', '0'): | ||
| return False | ||
| else: | ||
| raise ArgumentTypeError('Boolean value expected.') | ||
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| def init_config(description, doc, version): | ||
| global __cli_args | ||
| """ | ||
| 配置 | ||
| """ | ||
| parser = ArgumentParser(description=description, | ||
| epilog=doc, formatter_class=RawTextHelpFormatter) | ||
| parser.add_argument('-v', '--version', | ||
| action='version', version=version) | ||
| parser.add_argument('-c', '--config', help="run with config file [配置文件路径]") | ||
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| # 参数定义 | ||
| parser.add_argument('--dns', help="DNS Provider [DNS服务提供商]", choices=[ | ||
| 'alidns', 'cloudflare', 'dnscom', 'dnspod', 'dnspod_com', 'he', 'huaweidns', 'callback']) | ||
| parser.add_argument('--id', help="api ID [授权账户]") | ||
| parser.add_argument('--token', help="api token or Secret key [授权访问凭证或密钥]") | ||
| parser.add_argument('--ipv4', nargs="*", | ||
| help="ipv4 domain list [IPV4域名列表]") | ||
| parser.add_argument('--ipv6', nargs="*", | ||
| help="ipv6 domain list [IPV6域名列表]") | ||
| parser.add_argument('--index4', help="the way to get ipv4 [IPV4 获取方式]") | ||
| parser.add_argument('--index6', help="the way to get ipv6 [IPV6获取方式]") | ||
| parser.add_argument('--ttl', type=int, help="ttl for DNS [DNS 解析 TTL 时间]") | ||
| parser.add_argument('--proxy', nargs="*", | ||
| help="https proxy [设置http 代理，多代理逐个尝试直到成功]") | ||
| parser.add_argument('--debug', type=str2bool, nargs='?', | ||
| const=True, help="debug mode [是否开启调试,默认否]", ) | ||
| parser.add_argument('--cache', type=str2bool, nargs='?', | ||
| const=True, help="eusing cache [是否缓存记录,默认是]") | ||
|
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| __cli_args = parser.parse_args() | ||
| is_configfile_optional = get_config("token") or get_config("id") | ||
| config_file = get_config("config") | ||
| if not is_configfile_optional or config_file is not None: | ||
| __load_config(config_file or "config.json", is_configfile_optional) | ||
| __cli_args.config = config_file or "config.json" | ||
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| def __load_config(path="config.json", skip_auto_generation=False): | ||
| """ | ||
| 加载配置 | ||
| """ | ||
| global __config, config_modified_time | ||
| try: | ||
| with open(path) as configfile: | ||
| __config = loadjson(configfile) | ||
| __config["config_modified_time"] = stat(path).st_mtime | ||
| except IOError: | ||
| if skip_auto_generation: | ||
| __config["config_modified_time"] = time() | ||
| return | ||
| error(' Config file `%s` does not exist!' % path) | ||
| with open(path, 'w') as configfile: | ||
| configure = { | ||
| "$schema": "https://ddns.newfuture.cc/schema/v2.8.json", | ||
| "id": "YOUR ID or EMAIL for DNS Provider", | ||
| "token": "YOUR TOKEN or KEY for DNS Provider", | ||
| "dns": "dnspod", | ||
| "ipv4": [ | ||
| "newfuture.cc", | ||
| "ddns.newfuture.cc" | ||
| ], | ||
| "ipv6": [ | ||
| "newfuture.cc", | ||
| "ipv6.ddns.newfuture.cc" | ||
| ], | ||
| "index4": "default", | ||
| "index6": "default", | ||
| "ttl": None, | ||
| "proxy": None, | ||
| "debug": False, | ||
| } | ||
| dumpjson(configure, configfile, indent=2, sort_keys=True) | ||
| sys.stdout.write( | ||
| "New template configure file `%s` is generated.\n" % path) | ||
| sys.exit(1) | ||
| except: | ||
| sys.exit('fail to load config from file: %s' % path) | ||
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| def get_config(key, default=None): | ||
| """ | ||
| 读取配置 | ||
| 1. 命令行参数 | ||
| 2. 配置文件 | ||
| 3. 环境变量 | ||
| """ | ||
| if hasattr(__cli_args, key) and getattr(__cli_args, key) is not None: | ||
| return getattr(__cli_args, key) | ||
| if key in __config: | ||
| return __config.get(key) | ||
| env_name = 'DDNS_'+key.upper() # type:str | ||
| if env_name in environ: # 大写环境变量 | ||
| return environ.get(env_name) | ||
| if env_name.lower() in environ: # 小写环境变量 | ||
| return environ.get(env_name.lower()) | ||
| return default |