mirror of
https://github.com/Ellpeck/ExtremelySimpleLogger.git
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60 lines
2.3 KiB
C#
60 lines
2.3 KiB
C#
using System.IO;
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namespace ExtremelySimpleLogger {
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/// <summary>
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/// A <see cref="Sink"/> that writes log output to a file.
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/// </summary>
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public class FileSink : Sink {
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private readonly FileInfo file;
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private readonly StreamWriter writer;
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private readonly bool reopenOnWrite;
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/// <summary>
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/// Creates a new file sink with the given settings.
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/// </summary>
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/// <param name="file">The full, or relative, path of the file to write to</param>
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/// <param name="append">Whether new output should be appended to the old log file</param>
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/// <param name="reopenOnWrite">Whether this file sink should reopen the file every time it logs to it. If this is false, the file will be kept open by this sink.</param>
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public FileSink(string file, bool append, bool reopenOnWrite = false) :
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this(new FileInfo(file), append, reopenOnWrite) {
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}
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/// <summary>
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/// Creates a new file sink with the given settings.
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/// </summary>
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/// <param name="file">The full, or relative, path of the file to write to</param>
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/// <param name="append">Whether new output should be appended to the old log file</param>
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/// <param name="reopenOnWrite">Whether this file sink should reopen the file every time it logs to it. If this is false, the file will be kept open by this sink.</param>
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public FileSink(FileInfo file, bool append, bool reopenOnWrite = false) {
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this.reopenOnWrite = reopenOnWrite;
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this.file = file;
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var dir = file.Directory;
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if (dir != null && !dir.Exists)
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dir.Create();
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if (!append && file.Exists)
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file.Delete();
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if (!reopenOnWrite) {
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this.writer = file.AppendText();
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this.writer.AutoFlush = true;
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}
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}
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/// <summary>
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/// Logs the given message, which has already been formatted using <see cref="Sink.Formatter"/>.
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/// </summary>
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/// <param name="s">The message to log</param>
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public override void Log(string s) {
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if (this.reopenOnWrite) {
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using (var w = this.file.AppendText())
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w.WriteLine(s);
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} else {
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this.writer.WriteLine(s);
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}
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}
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}
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} |