76 lines
1.8 KiB
C#
76 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using Config.Net.Core;
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namespace Config.Net.Stores
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{
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/// <summary>
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/// Uses system environment variables
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/// </summary>
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class EnvironmentVariablesStore : IConfigStore
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{
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/// <summary>
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/// Readable
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/// </summary>
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public bool CanRead => true;
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/// <summary>
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/// Writeable
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/// </summary>
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public bool CanWrite => true;
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/// <summary>
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/// Store name
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/// </summary>
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public string Name => "System Environment";
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/// <summary>
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/// Reads value by key
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/// </summary>
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public string? Read(string key)
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{
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if (key == null) return null;
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foreach(string variant in GetAllKeyVariants(key))
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{
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if (FlatArrays.IsArrayLength(variant, k => Environment.GetEnvironmentVariable(k), out int length))
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{
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return length.ToString();
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}
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if (FlatArrays.IsArrayElement(variant, k => Environment.GetEnvironmentVariable(k), out string? element))
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{
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return element;
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}
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string? value = Environment.GetEnvironmentVariable(variant);
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if (value != null) return value;
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}
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return null;
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}
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/// <summary>
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/// Writes value by key
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/// </summary>
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public void Write(string key, string? value)
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{
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Environment.SetEnvironmentVariable(key, value);
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}
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private IEnumerable<string> GetAllKeyVariants(string key)
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{
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var result = new List<string>();
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result.Add(key);
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result.Add(key.ToUpper().Replace(".", "_"));
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return result;
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}
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/// <summary>
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/// Nothing to dispose
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/// </summary>
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public void Dispose()
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{
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}
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}
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} |