43 lines
1.2 KiB
C#
43 lines
1.2 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using Serilog.Events;
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namespace Phantom.Utils.Logging;
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static class DefaultLogLevel {
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private const string ENVIRONMENT_VARIABLE = "LOG_LEVEL";
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public static LogEventLevel Value { get; } = GetDefaultLevel();
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public static LogEventLevel Coerce(LogEventLevel level) {
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return level < Value ? Value : level;
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}
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private static LogEventLevel GetDefaultLevel() {
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var level = Environment.GetEnvironmentVariable(ENVIRONMENT_VARIABLE);
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return level switch {
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"VERBOSE" => LogEventLevel.Verbose,
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"DEBUG" => LogEventLevel.Debug,
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"INFORMATION" => LogEventLevel.Information,
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"WARNING" => LogEventLevel.Warning,
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"ERROR" => LogEventLevel.Error,
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null => GetDefaultLevelFallback(),
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_ => LogEnvironmentVariableErrorAndExit(level)
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};
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}
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private static LogEventLevel GetDefaultLevelFallback() {
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#if DEBUG
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return LogEventLevel.Verbose;
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#else
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return LogEventLevel.Information;
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#endif
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}
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[DoesNotReturn]
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private static LogEventLevel LogEnvironmentVariableErrorAndExit(string logLevel) {
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Console.Error.WriteLine("Invalid value of environment variable {0}: {1}", ENVIRONMENT_VARIABLE, logLevel);
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Environment.Exit(1);
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return LogEventLevel.Fatal;
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}
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}
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