sbt-one-log is a sbt plugin make log dependency easy.

sbt-one-log plugin provides you a easy way to manage the log dependency ( avoid the log lib hell), and keep the dependency available when generate pom.xml.

This is a fork of the CSUG/sbt-one-log project.

• automatic uniform your log dependency, current support slf4j and logback, other log lib will be bridged to slf4j.
• scala-logging support, if you don't need it, you can turn off the scala-logging support
• task ongLogGenerateLogbackXml to help you generate the logback.xml and logback-test.xml

for sbt 0.13.5 or above.

Add sbt-one-log plugin to the sbt configuration:

addSbtPlugin("io.github.chikei" % "sbt-one-log" % "1.0.1")

Now sbt-one-log will automatic add the log dependency and override other log lib.

This pluging is now an auto-triggered plugin (no longer needed enablePlugins)

and everything is OK.

• oneLogSlf4jVersion: which slf4j version to use
• oneLogLogbackVersion: which logback version to use
• oneLogUseScalaLogging: add the scalaLogging(https://github.com/typesafehub/scala-logging)

Scala can leverage lots of perfect Java lib, but it's chaotic with the Log libs in Java world. looking at the Log lib below:

• java.util.logging
• commons-logging
• commons-logging-api
• log4j
• slf4j
• logback
• log4j 2
• scala-logging
• slf4s (latest version only support Scala 2.9.1)
• Grizzled SLF4J
• AVSL
• loglady
• logula (abandoned)

of course, you can keep your project dependency cleanly with one or two log lib (e.g. slf4j and logback)

but sometimes your other dependency is out of control. e.g. if you dependency with Apache httpclient lib which dependency with commons-logging, you will log with commons-logging

also, you can add jcl-over-slf4j and exclude commons-logging explicitly in libraryDependencies setting. A better way is to explicitly declare dependency commons-logging with the special version 99-empty.

so, sbt-one-log comes to free your hands.

after (fix bugs)/(add features), please add test case and run test. to run test, just

.bin/bump-version.sh
sbt publishLocal
sbt scripted

when release a new version, make sure to publish to notes.implicit.ly by herald please.

sbt-one-log is under the Apache 2.0 License.