FastGithub/FastGithub.DomainResolve/TomlUtil.cs
2021-07-24 23:30:47 +08:00

79 lines
2.4 KiB
C#

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace FastGithub.DomainResolve
{
/// <summary>
/// doml配置工具
/// </summary>
static class TomlUtil
{
/// <summary>
/// 设置监听地址
/// </summary>
/// <param name="tomlPath"></param>
/// <param name="endpoint"></param>
/// <returns></returns>
public static Task SetListensAsync(string tomlPath, IPEndPoint endpoint, CancellationToken cancellationToken = default)
{
return SetAsync(tomlPath, "listen_addresses", $"['{endpoint}']");
}
/// <summary>
/// 设置指定键的值
/// </summary>
/// <param name="tomlPath"></param>
/// <param name="key"></param>
/// <param name="value"></param>
public static async Task SetAsync(string tomlPath, string key, object? value, CancellationToken cancellationToken = default)
{
var lines = await File.ReadAllLinesAsync(tomlPath, cancellationToken);
var toml = Set(lines, key, value);
await File.WriteAllTextAsync(tomlPath, toml, cancellationToken);
}
/// <summary>
/// 设置值
/// </summary>
/// <param name="lines"></param>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
private static string Set(string[] lines, string key, object? value)
{
var updated = false;
var builder = new StringBuilder();
foreach (var line in lines)
{
var span = line.AsSpan();
if (span.IsEmpty || span[0] == '#')
{
builder.AppendLine(line);
continue;
}
var index = span.IndexOf('=');
if (index <= 0 || span.Slice(0, index).Trim().SequenceEqual(key) == false)
{
builder.AppendLine(line);
continue;
}
builder.Append(key).Append(" = ").AppendLine(value?.ToString());
updated = true;
}
if (updated == false)
{
builder.Append(key).Append(" = ").AppendLine(value?.ToString());
}
return builder.ToString();
}
}
}