Serilog：如何仅在文件开头写入文件头？

Question

我需要编写一些与通过系统调度程序启动的应用程序状态相关的信息。那么处理线应该如下：

2019-10-09 23:39:22.936 +02:00 [DBG] ======================================================================
2019-10-09 23:39:22.999 +02:00 [DBG] MyAppDELFOR (0.10.1  2019-10-09)
2019-10-09 23:39:22.999 +02:00 [DBG] ----------------------------------------------------------------------
2019-10-09 23:39:23.015 +02:00 [DBG] stageDirectory: 'c:\EDIAbc\Company_received_stage'
2019-10-09 23:39:23.015 +02:00 [DBG] oftpIncomingDirectory: 'c:\EDIAbc\Company_incoming'
2019-10-09 23:39:23.015 +02:00 [DBG] archiveDirectory: 'c:\EDIAbc\Company_received_archive'
2019-10-09 23:39:23.015 +02:00 [DBG] ----------------------------------------------------------------------
2019-10-09 23:39:23.061 +02:00 [WRN] The stage file 'c:\EDIAbc\Company_received_stage\DELFOR_010091_20191001' already exists and is to be deleted.
2019-10-09 23:39:24.905 +02:00 [INF] Processing 'c:\EDIAbc\Company_received_stage\DELFOR_010086_20191001'
2019-10-09 23:39:30.281 +02:00 [INF] Processing 'c:\EDIAbc\Company_received_stage\DELFOR_010087_20191001'
2019-10-09 23:39:34.109 +02:00 [INF] Processing 'c:\EDIAbc\Company_received_stage\DELFOR_010088_20191001'

目前，我总是写标题。但是，应用程序的启动相当频繁，并且“没有要处理的数据”的情况很常见。因此，我想避免写标题，我只想写“没有要处理的数据”或类似的行。

有没有办法（在 Serilog 中）仅在创建日志文件时写入标头？

Answer 1

最近，File 接收器中添加了一组启用此类功能的挂钩。主要贡献者有a nice demo repo。