Archive/bbdown/BBDown/BBDownConfigParser.cs

using System;
using System.Collections.Generic;
using System.CommandLine.Parsing;
using System.CommandLine;
using System.IO;
using System.Linq;
using static BBDown.Core.Logger;

namespace BBDown;

internal static class BBDownConfigParser
{
    public static void HandleConfig(List<string> newArgsList, RootCommand rootCommand)
    {
        try
        {
            var configPath = newArgsList.Contains("--config-file")
                ? newArgsList.ElementAt(newArgsList.IndexOf("--config-file") + 1)
                : Path.Combine(Program.APP_DIR, "BBDown.config");
            if (File.Exists(configPath))
            {
                Log($"加载配置文件: {configPath}");
                var configArgs = File
                    .ReadAllLines(configPath)
                    .Where(s => !string.IsNullOrEmpty(s) && !s.StartsWith('#'))
                    .SelectMany(s =>
                        {
                            var trimLine = s.Trim();
                            if (trimLine.StartsWith('-') && trimLine.Contains(' '))
                            {
                                var spaceIndex = trimLine.IndexOf(' ');
                                var paramsGroup = new[] { trimLine[..spaceIndex], trimLine[spaceIndex..] };
                                return paramsGroup.Where(s => !string.IsNullOrEmpty(s)).Select(s => s.Trim(' ').Trim('\"'));
                            }
                            return [trimLine.Trim('\"')];
                        }
                    );
                var configArgsResult = rootCommand.Parse(configArgs.ToArray());
                foreach (var item in configArgsResult.CommandResult.Children)
                {
                    if (item is OptionResult o)
                    {
                        if (!newArgsList.Contains("--" + o.Option.Name))
                        {
                            newArgsList.Add("--" + o.Option.Name);
                            newArgsList.AddRange(o.Tokens.Select(t => t.Value));
                        }
                    }
                }

                //命令行的优先级>配置文件优先级
                LogDebug("新的命令行参数: " + string.Join(" ", newArgsList));
            }
        }
        catch (Exception)
        {
            LogError("配置文件读取异常，忽略");
        }
    }
}