Søren Rasmussen
07a23c1845
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continuous-integration/drone/push Build encountered an error
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
package hd44780
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import (
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"os"
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"github.com/op/go-logging"
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)
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// Comment INFO and uncomment DEBUG if you want detail debug output in library.
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var log *logging.Logger = buildLogger("hd44780",
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// logging.DEBUG,
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logging.INFO,
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)
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var terminalBackend logging.LeveledBackend = nil
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func buildLogger(module string, level logging.Level) *logging.Logger {
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// Set the backends to be used.
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if terminalBackend == nil {
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// Everything except the message has a custom color
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// which is dependent on the log level. Many fields have a custom output
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// formatting too, eg. the time returns the hour down to the milli second.
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var format = logging.MustStringFormatter(
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"%{time:2006-01-02T15:04:05.000} [%{module}] " +
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"%{color}%{level:.4s}%{color:reset} %{message}",
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)
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// Create backend for os.Stderr.
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var backend logging.Backend = logging.NewLogBackend(os.Stderr, "", 0)
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// For messages written to backend we want to add some additional
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// information to the output, including the used log level and the name of
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// the function.
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var backendFormatter logging.Backend = logging.NewBackendFormatter(backend, format)
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var backendLeveled logging.LeveledBackend = logging.AddModuleLevel(backendFormatter)
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terminalBackend = backendLeveled
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logging.SetBackend(terminalBackend)
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}
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log := logging.MustGetLogger(module)
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terminalBackend.SetLevel(level, module)
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return log
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}
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