Android Logger (concise wrapper of Timber) + CrashlyticsLogger

CrashlyticsLogger.kt

package com.nostra13.log

import android.util.Log
import com.google.firebase.crashlytics.FirebaseCrashlytics

class CrashlyticsLogger(private val isDebug: Boolean) : Logger() {

    private val priorityStr = mapOf(
        Log.VERBOSE to "V",
        Log.DEBUG to "D",
        Log.INFO to "I",
        Log.WARN to "W",
        Log.ERROR to "E",
        Log.ASSERT to "A"
    )

    override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
        if (isDebug || priority >= Log.INFO) {
            FirebaseCrashlytics.getInstance().log("${priorityStr[priority]}/$tag: $message")
        }
    }

    fun nonFatal(t: Throwable) = FirebaseCrashlytics.getInstance().recordException(t)
}

fun L.nonFatal(t: Throwable, message: String) {
    w(t, message)
    loggers().filterIsInstance<CrashlyticsLogger>().firstOrNull()?.nonFatal(t)
}

fun L.nonFatal(message: String) = nonFatal(RuntimeException(message), message)

L.kt

package com.nostra13.log

import timber.log.Timber

typealias Logger = Timber.Tree
typealias DebugLogger = Timber.DebugTree

object L {
    fun add(vararg loggers: Logger) = Timber.plant(*loggers)
    fun loggers(): List<Logger> = Timber.forest()

    fun v(message: String) = Timber.v(message)
    fun v(t: Throwable, message: String) = Timber.v(t, message)
    fun v(t: Throwable) = Timber.v(t)

    fun d(message: String) = Timber.d(message)
    fun d(t: Throwable, message: String) = Timber.d(t, message)
    fun d(t: Throwable) = Timber.d(t)

    fun i(message: String) = Timber.i(message)
    fun i(t: Throwable, message: String) = Timber.i(t, message)
    fun i(t: Throwable) = Timber.i(t)

    fun w(message: String) = Timber.w(message)
    fun w(t: Throwable, message: String) = Timber.w(t, message)
    fun w(t: Throwable) = Timber.w(t)

    fun e(message: String) = Timber.e(message)
    fun e(t: Throwable, message: String) = Timber.e(t, message)
    fun e(t: Throwable) = Timber.e(t)

    fun wtf(message: String) = Timber.wtf(message)
    fun wtf(t: Throwable, message: String) = Timber.wtf(t, message)
    fun wtf(t: Throwable) = Timber.wtf(t)
}

Others.txt

timber_version = '4.7.1'

implementation "com.jakewharton.timber:timber:$timber_version"

if (BuildConfig.DEBUG) {
    L.add(DebugLogger(), CrashlyticsLogger(BuildConfig.DEBUG))
} else {
    L.add(CrashlyticsLogger(BuildConfig.DEBUG))
}