[enhancement]: allow disabling colored log messages

[john-gold]

Which feature or improvement would you like to request?

I'd like to disable colored log messages.

Is your feature request related to a problem?

Currently, colored messages are always active for either logging to stdout and file.

ESC[2m2023-09-16T06:41:35.555227ZESC[0m ESC[32m INFOESC[0m ESC[2mutilsESC[0mESC[2m:ESC[0m Starting Stalwart Mail Server v0.3.7...

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[Andy-2639]

Relates to #41

[DuncanvR]

Logging seems to be done through the tracing crate, which has support for the NO_COLOR env var. I haven't tested this, but simply exporting that might just work already -- and if it doesn't, I guess the request would be to add support for it.

[mdecimus]

This feature has now been added and will be available on the next 0.3.x release. You'll be able to disable ansi as follows:

[global.tracing]
ansi = false

[mdecimus]

The option to disable ANSI colors is now available on v0.3.9.

[williamdes]

Thank you @DuncanvR for the hint
And @mdecimus for releasing the changes

[Andy-2639]

I'm using logging to stdout and a Windows Service Wrapper to redirect stdout/err to files.
Neither envvar NO_COLOR=1 nor setting

[global.tracing]
ansi = false

disables the ANSI escape sequences in the log.

Please also support disabling colors with stdout.

[mdecimus]

@Andy-2639 this has been implemented now and will be included in the next release.